WO2005039725A1 - 液状媒体の回収方法並びに液状の媒体回収装置 - Google Patents
液状媒体の回収方法並びに液状の媒体回収装置 Download PDFInfo
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- WO2005039725A1 WO2005039725A1 PCT/JP2004/004317 JP2004004317W WO2005039725A1 WO 2005039725 A1 WO2005039725 A1 WO 2005039725A1 JP 2004004317 W JP2004004317 W JP 2004004317W WO 2005039725 A1 WO2005039725 A1 WO 2005039725A1
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- Prior art keywords
- gas
- medium
- liquid medium
- condensing
- solvent
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0041—Use of fluids
- B01D1/0047—Use of fluids in a closed circuit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0041—Use of fluids
- B01D1/0052—Use of a liquid transfer medium or intermediate fluid, e.g. bain-marie
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/02—Evaporators with heating coils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/10—Vacuum distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/343—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas
- B01D3/346—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas the gas being used for removing vapours, e.g. transport gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
- B01D5/0063—Reflux condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
- B01D5/009—Collecting, removing and/or treatment of the condensate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4055—Concentrating samples by solubility techniques
- G01N2001/4066—Concentrating samples by solubility techniques using difference of solubility between liquid and gas, e.g. bubbling, scrubbing or sparging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/16—Vacuum
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/901—Promoting circulation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/11—Batch distillation
Definitions
- One aspect of the present invention relates to a method and apparatus for separating and recovering a liquid medium from a mixture containing a liquid medium, such as a solution containing a solute.
- Another aspect of the present invention relates to an apparatus for separating and recovering a liquid medium from a liquid mixture such as a solution containing a liquid medium such as a solvent and a non-volatile substance, and in particular, concentrating the liquid mixture.
- the present invention also relates to an apparatus for separating and recovering the liquid medium.
- Fig. 1 shows a simple distillation apparatus for organic solvents that is widely used.
- the boiled solvent vapor is led to the condensing part (condensing cooling condenser 4), where it is condensed and separated and purified.
- the distillation apparatus in Fig. 2 is an apparatus for separating and purifying a mixed solvent in which two or more types of solvents are mixed into a single component solvent.
- the evaporation section of this apparatus is filled with the solvent, and is used for evaporation of the evaporation section.
- the round bottom flask 1 is connected to a vertically extending fraction (column tower 7), and a condensing section (condensation cooling) is formed at the top of this column.
- a condensing condenser 4) is connected, and a branch pipe extends therefrom and is connected to a recovery receiver 5; this branch pipe further branches at the upper part, and a part of the condensate is returned to the upper part of the fractionation column tower 7.
- the recovery and reflux are controlled by solenoid valves 8 and 9 to enable fractional distillation of the solvent; in short, boiling the organic solvent to properly perform reflux and fractionation Used as a device for purifying mixed solvents while switching.
- Japanese Patent Application No. 4-8 6 9 7 8 discloses a high-purity n-type from a used waste liquid consisting of n-butanol, butyl acetate, water, 2-butoxybutanol, and 2-hexyloxyethanol.
- a method is described in which butanol and water are recovered by settling and separating an aqueous phase and a solvent phase and repeating rectification under reduced pressure.
- this method also rectifies by boiling the solvent.
- a conventional solvent recovery device is a system that recovers a solvent under reduced pressure, for example, a rotary evaporator that evaporates the solvent under reduced pressure, a cooling condenser, and a diaphragm pump.
- the conventional solvent recovery device evaporates the mixed solution containing the solvent, and when recovering the solvent, the outlet of the recovery unit is reduced in pressure by a vacuum pump or the like, from the evaporation unit to the recovery unit, and further to the recovery unit outlet The solvent that has been vaporized is transferred.
- a multi-sample concentration device that is different in principle from the above-described device is commercially available as a solvent concentration device.
- a solvent concentrator a mixed liquid (for example, a multi-sample sample) containing a volatile liquid medium such as a solvent and a non-volatile substance is collected in a number of containers, and a carrier gas is added to all of these containers. It is a device that can concentrate all the multi-sample samples at once by blowing a gas like this to vaporize the solvent. This is called a multi-sample concentrator and is commercially available.
- One object of the present invention is to provide a novel method and apparatus for “separation and purification” without the necessity of boiling a solvent, in particular, in solving the above-mentioned drawbacks of the conventional apparatus. .
- Another object of the present invention is to “concentrate” a mixture containing a liquid medium and a non-volatile substance to discharge the liquid medium such as a solvent to the atmosphere. It is an object of the present invention to provide a novel apparatus for recovering as a liquid medium. Disclosure of the invention
- the present invention forcibly brings gas into contact with a liquid medium, vaporizes the liquid medium, The liquid medium is recovered by condensing the medium.
- the present invention is a liquid medium recovery apparatus including a vaporization unit that forcibly contacts a liquid medium with a gas to vaporize the medium, and a condensing unit that condenses the medium vaporized in the vaporization unit. .
- the present invention provides a vaporization unit that vaporizes a liquid medium by forcing gas into contact with the liquid medium, a condensation unit that condenses the medium vaporized in the vaporization unit, and a condensation unit that condenses the liquid medium.
- a separated gas supply unit for supplying the separated separated gas to the vaporization unit as a gas for forcing the separated gas into contact with the liquid medium;
- the present invention comprises vaporization means for vaporizing the liquid medium by bringing a gas into contact with a mixed liquid containing the liquid medium and a non-volatile substance.
- Condensing / separating means for separating the condensed gas and the separated gas by cooling the gas supplied from the vaporizing means and the vaporized medium;
- FIG. 1 is a schematic view showing a conventional organic solvent single distillation apparatus.
- FIG. 2 is a schematic view showing a conventional organic solvent fractional distillation apparatus.
- FIG. 3 is a schematic diagram showing an organic solvent automatic purification apparatus according to one embodiment of the present invention.
- FIG. 4 is a functional block diagram showing functions of an apparatus for recovering a liquid medium and concentrating a mixed liquid according to another embodiment of the present invention.
- FIG. 5 is a schematic view showing a preferred embodiment of an apparatus for recovering a liquid medium and concentrating a mixed liquid according to another embodiment of the present invention.
- the gas is forcibly brought into contact with the liquid medium to vaporize the liquid medium.
- This is a liquid medium recovery method for condensing the vaporized medium.
- the present invention (2) is the recovery method according to the invention (1), wherein a gas separated by condensing the medium is used as the gas that is forcibly brought into contact with the liquid medium.
- the present invention (3) is the recovery method of the invention (1) or (2), wherein when the liquid medium is vaporized, the temperature of the liquid medium is vaporized at a temperature below the boiling point.
- the present invention (4) is a liquid medium recovery apparatus comprising: a vaporization section for forcing gas in contact with a liquid medium to vaporize the medium; and a condensation section for condensing the medium vaporized in the vaporization section. is there.
- the condensing section that condenses the medium vaporized in the vaporizing section, and the condensation section
- a separation gas supply unit that supplies a separation gas separated by condensation to the vaporization unit as a gas that is forced to contact the liquid medium.
- Liquid medium is not particularly limited as long as it is in the state of being subjected to the treatment with the method or apparatus according to the present invention, and may be one kind of medium or a mixture of two or more kinds.
- An organic solvent or an inorganic solvent may be used, and a polar solvent or a nonpolar solvent may be used. However, it is typically a medium that is liquid at room temperature and pressure.
- a liquid medium for example, a low boiling point medium having a boiling point of 50 ° C or less, for example, ether, methylene chloride, pentane, a medium boiling point medium having a boiling point of 50 ° to 100 ° C, for example, THF, ethyl acetate, black mouth
- examples include alcohols such as form, acetone, hexane, ethanol, or methanol, and high-boiling-point media having a boiling point of 100 ° C. or higher, such as benzene, toluene, DMF, DMSO, and acetonitrile.
- the liquid medium to be treated may be in a homogeneous material system such as a solution, a suspension, an emulsion, or the like, or in a heterogeneous material system.
- a liquid medium as an extractant, a cleaning agent, an eluent, a developing agent, an absorbent, etc.
- separation and purification of extracts such as crude drugs, column chromatography eluent or washing solution regeneration treatment, and the like can be mentioned.
- Gas is inert to the liquid medium being processed and cooled with a refrigerant As long as it is a gas that maintains a gaseous state even when it is applied, there is no particular limitation.
- a gas suitable for the conditions will be selected according to the conditions (for example, vaporization conditions and condensation conditions) determined in consideration of the liquid medium to be treated. Specific examples include air, nitrogen, helium, and argon, but air is preferred from a cost perspective.
- “Gas separated by condensing the medium” is a gas that has passed through the condensing part, and the medium in which the liquid medium is vaporized is mixed with the gas, but when it passes through the condensing part, the medium is condensed. It becomes a liquid medium and is separated from the gas. Therefore, it is a gas that essentially does not contain the medium. Therefore, the partial pressure of the medium is very small, and it is easy to vaporize the medium when the gas and the medium are forcibly brought into contact with each other. However, depending on the condensation conditions, the gas may contain some medium.
- Formd contact means that the gas-liquid contact is mechanically and man-made by changing the gas into an air current using a pump, etc., and blowing this air current against a liquid such as a medium. This is done by forcibly blowing the boundary film formed at the interface between the liquid and gas by bringing the air current into contact with it and constantly updating the boundary film part.
- a contact method such as counter current, flat current, crossing, or spraying can be used.
- the mixture is supplied from the top to the wall, and the gas is passed from the bottom to the top.
- a double spiral tube is used, heated by the outer tube, and the inner tube is wetted by the mixture. It is preferable to flow.
- it can be made to contact by passing or blowing gas on the surface of a mixture.
- gas can be passed through the mixture, for example publishing.
- the bath temperature may be adjusted to a temperature 10 to 20 ° C. below the boiling point.
- the bath temperature 5 to 10 ° C. below the boiling point it is preferable to adjust the bath temperature 5 to 10 ° C. below the boiling point.
- the condensing conditions it is sufficient that the vaporized medium becomes a liquid, but in order to increase the efficiency, it is preferable to set the condensing temperature of the medium to a lower temperature.
- a low boiling point medium 0 to 1-40 ° C is preferable, and 10 to 1 to 30 ° C is more preferable.
- 10 to 30 ° C is preferable, and 0 to 20 ° C is more preferable.
- 20 to 20 ° C is preferable, and 10 to 10 ° C is more preferable.
- the aspect which circulates gas by making it a closed system can be mentioned.
- the gas By adopting such a mode, in addition to being environmentally safe without the risk of the medium being dissipated to the outside, even if the condensation in the condensing part is insufficient, the gas will recirculate. It is possible to maintain a high recovery rate.
- a liquid medium recovery device according to a preferred embodiment is provided.
- the liquid medium recovery apparatus 10 includes a heating unit 22, a condenser cooling condenser 10 2, and connection conduits 70, 60, and 64 that connect these upper and lower parts, and a liquid medium recovery apparatus
- the annular circulation system that becomes a closed system by 10 is constructed.
- a diaphragm pump P 1 made of fluororesin for gas circulation is attached between the connecting pipes 60 and 64.
- the gas contained in the annular circulation system is forcibly circulated by the diaphragm pump P-1 so that the liquid medium injected from the liquid medium supply port 2 4 into the vaporizing section 20 is vaporized and purified to be condensed into the condensing section 1 It is liquefied and collected at 0 0.
- the material used in the apparatus of the present invention is not particularly limited as long as it is a material that is impermeable to gas and liquid and has chemical resistance.
- materials include carbon materials, glass' enamels, stainless steel, inorganic materials such as ceramics; polyethylene, polypropylene, tetrafluoroethylene resin, ethylene trifluoride chloride resin, vinylidene fluoride resin, fluoride engineering Tylene propylene resin, perfluoroalkoxy resin, unsaturated polyester, epoxy resin, bull ester resin, furan resin, organic material such as fluororesin; transition metal such as titanium, precious metal such as Pt, Al-Mg Alloy, Cu alloy (for example, 001-311 alloy, Su-Zn alloy, Cu-AL alloy, Cu-Ni alloy), Ni alloy (for example, 1-001 alloy, Ni — Metal materials such as Mo alloy, Ni—Cr alloy), or composite materials; or materials coated with corrosion resistant materials. Glass, fluororesin, and stainless steel are preferred.
- the pump used for gas circulation may be a chemical-resistant pump, and the inside is preferably a diaphragm pump P-1 made of fluororesin.
- a diaphragm pump P-1 made of fluororesin.
- the ability of the diaphragm pump P-1 to circulate a volume of gas in the range of 0.1 to 10 times the total internal volume of the liquid medium (organic solvent) automatic refining device is required per minute.
- a diaphragm pump capable of circulating a gas having a volume in the range of 0.3 to 3 times per minute for example, if the total internal volume of the organic solvent automatic refining device is 3 to 4 L, a fluororesin diaphragm pump with an exhaust capacity of 15 to 1 L / min can be used.
- a diaphragm pump having a displacement of 8 to 3 L / min is used.
- the organic solvent is dripped from the recovery solvent supply port 24 of the fluororesin conduit at the top of the vaporization unit 20 including the heating unit 22 and the round bottom flask receiver 26 for evaporation, and part of it is heated. It flows down the inner wall of the warm section 2 2 and reaches the evaporation round bottom flask receiver 2 6.
- the dropped organic solvent is vaporized by being warmed by the vaporization unit 20 including the heating unit 22 and the round bottom flask receiver 26 for evaporation.
- a connecting pipe 60 made of fluororesin is inserted into one branch pipe 36 attached between the heating unit 22 and the round bottom flask receiver 26 for evaporation.
- the distance between the bottom of the evaporating round bottom flask receiver 26 and the tip of the connecting conduit 6 is adjusted depending on the type of organic solvent.
- the tip of the connecting conduit 60 is The connecting conduit 60 is fixed so that it is approximately 4 to 8 cm away from the bottom of the bottom flask receiver 26.
- Connection The other end of the conduit 60 is connected to the diaphragm pump P-1.
- the vaporization of the organic solvent is performed by blowing a gas supplied from the other end of the connection conduit 60 onto the liquid level of the evaporation round bottom flask receiver 26 by the diaphragm pump P-1.
- the tip of the connection conduit 60 may be positioned so as to come into contact with the organic solvent accumulated in the evaporation round bottom flask receiver 26, and publishing may be performed. Also, by supplying gas to the round bottom flask receiver 26 for evaporation, the inside of the heating unit 22 rises from the bottom to the top with respect to the organic solvent dropped from the recovery solvent supply port 24 Countercurrent airflow occurs.
- a connecting pipe 3 4 made of a fluororesin is inserted into another branch pipe 3 2 between the heating unit 2 2 and the round bottom flask receiver 26 6 for evaporation.
- the connecting conduit 3 4 is fixed so that one end of the connecting conduit 3 4 is about 2 cm away from the bottom of the evaporation round bottom flask receiver 26.
- the other end of the connection conduit 34 is connected to the automatic opening / closing solenoid valve 28, and the outlet of the automatic opening / closing solenoid valve 28 is connected to the waste liquid storage tank 30 via the connection conduit 44.
- the recovered organic solvent is dropped from the recovered solvent supply port 24 of the fluororesin conduit at the upper part of the vaporizing section 20, and the dropping speed is adjusted by the needle opening / closing valve 80.
- One end of a conduit 72 is connected to the upper part of the solvent supply sealed tank 50.
- Guidance One end of a three-way branch pipe 62 is connected to the other end of the pipe 72, and a conduit 74 is connected to the remaining two ends of the three-way branch pipe 62.
- Conduit 74 includes automatic open / close solenoid valve 16, three-way branch pipe 66, pressure reducing dual pump P-2, three-way branch pipe
- an automatic open / close solenoid valve 17 is connected to the three-way branch pipe 66, and an automatic open / close solenoid valve is connected to the three-way branch pipe 65.
- conduit 76 One end of a conduit 76 is connected to the solvent supply sealed tank 50.
- the other end of 76 is connected to the recovery solvent supply port 24 via a needle opening / closing valve 80 and an automatic opening / closing solenoid valve 81.
- Addition of pressure reduction dual pump P-2 and automatic opening / closing solenoid valves 15, 16, 17, 18, 19, 81, etc. are controlled at pre-programmed timings to provide a solvent supply sealed tank 50 Can be in a pressurized state or a reduced pressure state.
- the recovered organic solvent is supplied to the vaporization unit 20 as follows.
- the automatic open / close solenoid valve 19 is opened, the automatic open / close solenoid valve 81 is closed, and the solvent supply sealed tank 50 is depressurized using the pressure-reduction dual pump P-2, so that the recovered organic solvent is removed.
- the automatic open / close solenoid valves 15, 17, 19 are closed and the automatic open / close solenoid valves 16, 18, 81 are opened, and the tank 50 for weak solvent supply is weakened using the dual pressure pump P-2.
- the recovered organic solvent is moved from the solvent supply sealed tank 50 to the heating unit 22 by applying pressure.
- the pressurization / depressurization state of the solvent supply sealed tank 50 can be controlled by operating at a preprogrammed timing such as closing the automatic opening / closing solenoid valves 16, 18, 81.
- Control of the pressure-reducing dual pump P-2, automatic open / close solenoid valve 28, etc. can be performed at set time intervals by a device such as a timer. This time interval depends on certain conditions, such as the evaporating round bottom flask receiver 26. It can be selected appropriately depending on the amount of residue solution that accumulates. For example, by monitoring the liquid level of the recovered organic solvent in the solvent-sealed closed tank 50, the residual solution in the evaporation round-bottom flask receiver 2 6 can be removed using a pressure-reducing dual pump P-2. It can be automatically moved to an external waste liquid storage tank 30.
- a heating bath 40 is provided below the evaporating round bottom flask receiver 26 of the vaporizing section 20.
- the evaporating round bottom flask receiver 26 is immersed in the heating bath 40 and heated. .
- the warming bath 40 is connected to a heating section 22 by a conduit 90.
- the conduit 90 is equipped with a warm bath circulation pump P-3, and the warm bath solution enclosed in the warm bath 40, conduit 90 and the warming section 22 is transferred by the warm bath circulation pump P-3.
- the heating bath 40 and the heating unit 22 can be heated by circulation.
- Evaporation round bottom flask receiver 2 6 and heating section 2 2 etc. are heated below the boiling point of the organic solvent dropped from the recovery solvent supply port 2 4. Warm it to a temperature that is 10 to 20 ° C lower than the boiling point of the individual solvent, and for organic solvents with a low boiling point, warm it to a temperature that is 5 to 10 ° C lower than the boiling point of the individual solvent.
- the heating section 22 may not necessarily have an evaporation function.
- prepare one or a plurality of gas blowing parts such as the evaporation round bottom flask receiver 26, and from the diaphragm pump P-1 for gas circulation while warming these gas blowing parts appropriately
- the supplied gas may be blown to each of the gas blowing portions to vaporize the organic solvent, and these gases may be collected and guided to the cooling condenser for condensation 10 2.
- test tubes are prepared in the above-mentioned closed box of the evaporation round bottom flask receiver 26 described above, and a solvent is stored in these test tubes to blow a gas.
- a solvent is stored in these test tubes to blow a gas.
- spraying There are no particular restrictions on the form of spraying, as long as the gas can be forcibly brought into contact with the organic solvent.
- the gas evaporated in the round bottom flask receiver 26 for evaporation is moved to the heating section 22, and the organic solvent to be further evaporated in the heating section 22 is taken into the gas.
- the heating section 2 2 of the vaporizing section 20 and the condensing cooling condenser 10 2 of the condensing section 100 are connected by a connecting conduit 70. Vaporized vapor vaporized in the vaporization section 20 slowly moves to the condensation section 100.
- the refrigerant flows through the cooling pipe of the condenser cooling condenser 10 2 in the condensing section 100, and the vaporized vapor is condensed and liquefied in the condenser cooling condenser 10 2.
- Refrigerant vapor can be condensed by flowing a refrigerant in the range of 0 to 1 35 ° C through the cooling pipe of the condenser for condensing 10 2, but more preferably the refrigerant is 10 ° C or less. It is good to flow.
- Fluoropolymer connecting pipe 6 4 connected to diaphragm pump P—1 is connected to 1 ⁇ 3 branch pipe 1 0 8 between condensing cooling condenser 1 0 2 and round bottom flask receiver 1 0 4 It is connected.
- the fluorine resin connection pipe 60 connected to the diaphragm pump P-1 is connected to one technical tube 3 6 between the heating unit 22 and the round bottom flask receiver 26 for evaporation.
- the gas pushed out from the connection conduit 60 in this way is connected to the connection conduit 6 4 via the heating section 2 2, the connection conduit 70, and the condenser condenser for cooling 10 2. Circulates in the closed system by returning to the diaphragm pump P-1.
- Connecting pipe 1 1 2 is connected to the other branch 1 1 0 between the condenser condenser for condensation 10 0 and the round bottom flask receiver 1 0 4, and the connecting pipe 1 1 2 is purified. It is led to the solvent storage tank 1 0 6. Round-bottom flask receiver at the bottom of the condenser 1 100 The purified solvent accumulated in 1 0 4 is automatically moved to the purified solvent storage tank 1 0 6 by fixing the height of the connecting conduit 1 1 2 appropriately.
- a three-way branch pipe may be provided in the middle of the connection pipe 64, and a further pressurizing pump and an automatic opening / closing valve may be connected to the remaining end of the three-way branch pipe.
- the automatic open / close valve connected to this pressurized pump P-4 (not shown) is opened and pressurized by the pressurized pump P-4.
- the purified solvent can be automatically transferred to 1 06. Further, the residue accumulated in the evaporation round bottom flask receiver 26 can be moved to an external waste liquid storage tank 30.
- the apparatus such as the round bottom flask receiver 26 6 for evaporation in which the organic solvent or the residue solution to be dropped is stored, the round bottom flask receiver 10 4 in which the purified solvent is stored, or the like is made of glass.
- the apparatus such as the round bottom flask receiver 26 6 for evaporation in which the organic solvent or the residue solution to be dropped is stored, the round bottom flask receiver 10 4 in which the purified solvent is stored, or the like is made of glass.
- equipment made of the materials used in the above-described apparatus of the present invention may be used, and the operating temperature range determined according to the type of solvent used considers chemical resistance, etc. Can be used.
- Another embodiment of the present invention is a vaporization means for vaporizing the liquid medium by bringing a gas into contact with a mixed liquid containing the liquid medium and a non-volatile substance.
- Condensation / separation means for separating the gas supplied from the vaporization means and the vaporized medium into a condensed gas and a separated gas by cooling, and the separated gas as the gas to the vaporization means
- a gas supply means for supplying, and a liquid medium recovery device.
- the condensing and separating means includes a first condensing means for cooling and condensing the vaporized medium, and the vaporized medium that has passed through the first condensing means. Furthermore, it is preferable to include a second condensing means for cooling and condensing. According to another aspect of the present invention, it is preferable that the apparatus further includes a heat-retaining and heating unit of the vaporizing unit.
- the apparatus further includes a feeding unit that supplies the vaporized medium generated by the vaporizing unit as the gas to the vaporizing unit.
- the vaporizing means includes the gas in the liquid medium. It is preferable to concentrate the mixed liquid containing the liquid medium while blowing the body to vaporize the medium.
- an apparatus of the present invention concentrates a liquid mixture containing a liquid medium and a non-volatile substance in a closed circulation system, and collects the vaporized medium even at a very low concentration. be able to.
- the vaporization temperature of the liquid medium can be set to be equal to or lower than the boiling point of the liquid medium, and the gas circulation rate can be made variable.
- the means for condensing and separating the liquid medium can be selected according to an adjustable residence speed, and there is an effect that there is no leakage of the liquid medium.
- FIG. 4 is a functional block diagram showing functions of the apparatus according to another embodiment of the present invention. Reference numerals in the figure are 1 0 0 2: vaporization means, 1 0 0 4: condensation separation means, and 1 0 0 6: gas supply means.
- an apparatus comprises vaporization means 1002, condensation / separation means 1 0 0 4, and gas supply means 1 0 0 6.
- the arrows connecting the vaporization means 1002, the condensation / separation means 1004, and the gas supply means 1006 indicate the flow of gas or medium described later.
- the vaporizing means 1002 vaporizes the liquid medium by bringing the gas into contact with the mixed liquid containing the liquid medium and the non-volatile substance.
- the condensing / separating means 1004 cools the gas supplied from the vaporizing means 1002 and the vaporized medium, and separates them into a condensed medium and a separated gas.
- the gas supply means 10 06 supplies the separated gas separated in the condensing / separating means 10 04 to the vaporizing means 100 2 as the gas.
- non-volatile substance is a non-volatile liquid, a solid or a mixture thereof present in the liquid phase together with the liquid medium in the liquid mixture.
- specimens, extracts and the like using a liquid medium as a diluent, an extractant and the like can be mentioned.
- the “liquid medium” is not particularly limited as long as it is liquid and volatile in the situation where it is subjected to treatment with the method or apparatus according to another embodiment of the present invention.
- one kind of medium or two or more kinds of mixed mediums may be used, an organic solvent or an inorganic solvent may be used, and a polar solvent or a nonpolar solvent may be used.
- a volatile medium eg, solvent
- a liquid medium for example, a low boiling point medium having a boiling point of 50 ° C or lower, for example, ether, methylene chloride, pentane, a medium boiling point medium having a boiling point of 50 ° C to 100 ° C, for example, THF, ethyl oxalate,
- a medium boiling point medium having a boiling point of 50 ° C to 100 ° C for example, THF, ethyl oxalate
- examples include chloroform, alcohol such as acetone, hexane, ethanol, or methanol, acetonitrile, benzene, and a high boiling point medium having a boiling point of 100 ° C or higher, such as toluene, DMF, and DMSO.
- the “mixed liquid” includes a non-volatile substance and a liquid medium, and may be a homogeneous substance system such as a suspension and an emulsion, or a mixed liquid in a heterogeneous substance system.
- Specific examples of the mixed solution include a mixed solution after using a liquid medium as a diluent, an extractant, or the like.
- the “gas” is not particularly limited as long as it is inert to the liquid medium to be treated and can maintain a gaseous state even when cooled with a refrigerant.
- an appropriate gas for example, carrier gas
- Specific examples include air, nitrogen, helium, argon, and dry gases thereof, but air is preferable from the viewpoint of cost.
- the “separated gas” is a gas that has passed through the condensation and separation means, and a medium in which the liquid medium is vaporized (hereinafter abbreviated as a vaporization medium) is mixed with the gas to form a mixed gas.
- the vaporizing medium is condensed and becomes a liquid medium, and is separated from the gas, so that it is essentially a gas that does not contain the vaporizing medium. Therefore, the partial pressure of the vaporized medium in the separated gas is very small, and the medium is easily vaporized when the gas and the medium are brought into contact with each other.
- the separation gas may contain a vaporization medium depending on the vaporization conditions.
- the vaporizing means 1002 causes a gas (for example, carrier gas) to contact a mixed liquid containing a liquid medium (for example, a solvent) and a volatile substance to vaporize the liquid medium.
- a gas for example, carrier gas
- the gas-liquid contact is mechanically and artificially performed, so that the air current is brought into contact with the boundary film formed at the interface between the liquid and gas and blown away, and the boundary film is constantly updated to vaporize. It can be carried out.
- a contact method such as counter current, parallel flow, crossing, spraying, or the like can be used.
- the mixed liquid is supplied from the upper part to the wall surface, and the gas is passed from the lower part to the upper part. It is a double spiral pipe, heated by the outer pipe, and mixed with the inner pipe in the form of a wet wall.
- the liquid can flow. It is preferable to bring the gas into contact with the surface of the mixed solution by passing or blowing it.
- gas can be passed through the mixed solution, for example, it can be coupled.
- a vaporization means 1002 of another embodiment of the present invention a means normally known as a liquid concentration means (for example, a concentrator 1100 in FIG. 5 described later) is used. Can do.
- the condensing / separating means 1004 is configured to cool the gas (for example, carrier gas) supplied from the vaporizing means 1002 and the vaporizing medium, thereby condensing the condensed medium and the separated gas. To separate.
- gas for example, carrier gas
- this condensation / separation means 1004 it is preferable to separate all the vaporized medium from the gas.
- a condensing / separating means for separating a part of the vaporizing medium from the gas can be optionally added.
- a second condensing / separating means for completely condensing the vaporized medium (second condensing / separating device 1 1 7 0 in FIG. 5 to be described later).
- the vaporizing medium The body is preferably cooled and condensed under reduced pressure.
- the vaporizing medium is preferably further cooled and condensed under pressure.
- the pressure in the first condensing / separating means is equal to the gas moving amount of the gas mixture of the vaporizing medium and the gas to be moved to the second condensing / separating means, or the gas moving amount by the gas supply means 1006 described later. More control.
- the pressure in the second condensing / separating means can be controlled by the amount of gas movement by a gas supply means 106 described later or the amount of gas movement by a gas feeding means described later.
- a combination of a plurality of partial condensation separation means and one complete condensation separation means; a combination of one partial condensation separation means and a plurality of complete condensation separation means; 'or one partial condensation separation means; Combinations with one complete condensation separation means can be used in parallel.
- a plurality of condensing and separating means it is preferable to use a plurality of condensing and separating means, and the above combinations can also be used.
- the condensation conditions in the condensation / separation means 1004 may be any temperature conditions in which the vaporization medium becomes a liquid, but in order to increase the efficiency, it is preferable to set the condensation temperature of the medium to a lower temperature. It is.
- the condensation condition is, for example, 1 35 to 20 ° C. In the case of a low boiling point medium, it is preferably 0 to 140 ° C, more preferably 110 to 30 ° C. In the case of a medium boiling point medium, the temperature is preferably from 10 to 30 ° C, more preferably from 0 to 120 ° C. In the case of a high boiling point medium, 20 to 120 ° C is preferable, and 10 to 10 ° C is more preferable.
- the flow rate of the vaporized medium passing through the condensing and separating means 1004 is not particularly limited, but a flow rate that does not affect the condensation of the vaporized medium itself is preferable.
- the gas supply means 1006 supplies the separated gas to the vaporization means 1002 as gas (for example, carrier gas).
- the gas supply means 1 0 6 described above may be any one that circulates gas.
- the gas supply means 1 0 0 6 is provided.
- the condensation separation means 1 0 0 4 A means for arbitrarily taking out the liquid medium may be added.
- the vaporizing medium can be moved together with the gas.
- Such gas supply can be performed using a pump or the like (for example, a first pump 1 160 and a second pump 12 2 0 in FIG. 5 described later).
- the gas supply capacity of the pump in other words the discharge volume, is selected depending on the total volume of the device as described below.
- the gas supply means 1 0 0 6 is provided between the vaporization means 1 0 0 2 and the condensation separation means 1 0 0 4, and preferably the gas is condensed into the vaporization means 1 0 0 2 and then condensed. It circulates to the separation means 1 0 4 and further to the gas supply means 1 0 0 6.
- the above-described pumps may be pumps having chemical resistance, and the inside is made of fluorine resin.
- a diaphragm pump is preferred.
- gas for example, carrier gas
- the volume in the range of 0.1 to 10 times per minute with respect to the total internal volume of the medium recovery device 10 10 according to another embodiment of the present invention per minute is preferable to use a pump capable of circulating gas at a volume in the range of 0.3 to 3 times per minute.
- the fluorine having a discharge capacity of 15 to 1 L / min is 3 to 4 L
- a resin pump it is preferable to use a pump with a discharge rate of 8 to 3 L / min.
- means that can be arbitrarily provided in the medium recovery apparatus 100 according to another embodiment of the present invention for example, heating means, gas feeding means, and gas purification means will be described (not shown). ).
- a heating means can be further included.
- the heating means brings the temperature of the liquid medium (for example, a volatile solvent) in the vaporizing means to a temperature below the boiling point.
- the heating temperature is, for example, for medium with high and medium boiling points.
- the heating temperature is preferably adjusted to a temperature 10 to 20 ° C. lower than the boiling point.
- a low boiling point medium it is preferable to adjust the temperature to be 5 to 10 ° C. lower than the boiling point.
- it may be heated to a temperature equal to or higher than the boiling point within the range of the purpose of the other embodiment of the present invention.
- the vaporization means 1002 can be used both as a part for holding the mixed liquid and a heating part (for example, as described below) Holding stand in Fig. 5 1 1 1 8). Further, when the vaporizing hand 100 2 is a closed device, a heating means can be provided outside the device to heat the entire device.
- a gas feeding means can be further included.
- the gas feeding means supplies the vaporized medium (for example, solvent vapor) generated by the vaporizing means 100 2 to the vaporizing means 100 2 as a gas (for example, carrier gas).
- a gas for example, carrier gas
- the vaporizing means 1 0 0 2 can be supplied through means (for example, a pump or a line with an adjusting cock).
- the gas feeding means can move the gas and the vaporizing medium from the vaporizing means 100 2 to the condensing / separating means 100 4 through the gas feeding means (for example, a pump). Further, when there are a plurality of condensing / separating means 1004, a gas supply means can be arranged between them to move the gas and the vaporizing medium.
- the example of the pump in the gas supply means is the same as the example of the pump in the gas supply means 10 06 described above.
- the medium recovery apparatus 10 0 10 may further include a gas purification unit.
- the gas purification means is a means (for example, an adsorption filter, a cleaning trap) for removing fine particles, acids, alkalis, and the like.
- the gas purification means may be provided anywhere in the apparatus according to another embodiment of the present invention.
- vaporization means It is preferably provided at the outlet from 1002 (outlet 1 1 16 in Fig. 5 to be described later), or a supply port for supplying gas (carrier gas) to the vaporizing means 1002 (supply in Fig. 5 to be described later) It is preferably provided in the mouth 1 1 14).
- the material used for the medium recovery apparatus 1010 may be any material that is impermeable to the gas (for example, carrier gas) and the liquid mixture and has chemical resistance, and is particularly limited.
- materials include carbon materials, glass and enamel, stainless steel, inorganic materials such as ceramics; polyethylene, polypropylene, tetrafluoroethylene resin, trifluoroethylene chloride resin, vinylidene fluoride resin, fluoroethylene Propylene resin, perfluoroalkoxy resin, unsaturated polyester, epoxy resin, bull ester resin, furan resin, organic material such as fluororesin; key material such as silicone resin; transition metal such as titanium, Pt, etc.
- Precious metals A 1—Mg alloys, Cu alloys (eg, Cu—Sn alloys, 311—211 alloys, Cu—A 1 alloys, CuN i alloys), Ni alloys (eg, Ni—Cu alloys) , Ni 1 Mo alloy, Ni—Cr alloy), composite materials, or materials coated with a corrosion resistant material. Glass, fluororesin, and stainless steel are preferred.
- the medium recovery apparatus 1010 is used for, for example, concentration of extracts such as herbal medicines, concentration of liquid specimens; recovery of cleaning liquids for machinery, members, substrates, molds, etc. Can do.
- FIG. 5 is a diagram showing an outline of a liquid medium recovery device 1010 (device for solvent recovery and multi-sample concentration) according to the present embodiment. Representative symbols in the figure are: 1010: Liquid medium recovery device, 1 032: Feed pipe (feeding means), 1 1 00: Concentration device (vaporization means), 1 1 1 8 Is a holding table (heat-retaining and heating means), 1 140 is a first condensing / separating device (first condensing means), and 1 160 is a first pump (feeding means). It is a second condensing / separating device (second condensing means), 1 200: a second pump (gas supplying means).
- the liquid medium recovery device 1010 includes a concentrator 1 1100, The first condensing / separating device 1 1 4 0, the first pump 1 1 60, the second condensing / separating device 1 1 7 0, and the second pump 1 2 0 0 are composed of force.
- the concentrator 1 1 0 0 is composed of a container 1 1 1 0, and an upper part of the container 1 1 1 0 has a supply port 1 1 1 4 for supplying gas (carrier gas) to the container 1 1 1 0, An outlet 1 1 1 6 is formed for extracting the medium (solvent vapor) vaporized in the container 1 1 1 0 from the container 1 1 1 0.
- the container 1 1 1 0 is sealed except for the supply port 1 1 1 4 and the outlet port 1 1 6
- the multi-sample sample container 1 1 1 2 has a long shape in which an open port 1 1 2 20 having one end opened, for example, a test tube shape.
- a multi-sample sample can be injected into the multi-sample sample container 1 1 1 2 from the opening 1 1 2 0, and the carrier gas supplied to the container 1 1 1 0 can be supplied from the opening 1 1 2 0 as described later. .
- the holding base 1 1 1 8 is made of a material that easily conducts heat, for example, aluminum block.
- a plurality of holes 1 1 2 2 formed slightly larger than the outer shape of one multi-sample sample container 1 1 1 2 are provided on the upper end surface of the holding table 1 1 1 8.
- a heat source (not shown) is connected to the holding base 1 1 1 8, and the heat generated from the heat source (not shown) is transferred to the hole 1 1 through the holding base 1 1 1 8. 2 Communicate to each of the multi-sample sample containers 1 1 1 2 held in 2.
- a temperature control device (not shown) for controlling the temperature of the multi-sample sample container 1 1 1 2 is connected to the heat source section, and the multi-sample sample container 1 1 1 2 can be maintained at a desired temperature. Can do.
- the supply port 1 1 1 4 is formed in the upper part of the container 1 1 10.
- a supply pipe 1 1 2 4 is connected to the supply port 1 1 1 4 toward the bottom of the container.
- a gas branch 1 1 2 6 is attached by a support base (not shown). And is supported.
- a plurality of nozzle tubes 1 1 2 8 extending downward are attached to the gas branch portion 1 1 2 6.
- the plurality of nozzle tubes 1 1 2 8 are formed so as to correspond to the holes 1 1 2 2 formed in the holding table 1 1 1 8 described above.
- the lower end of each of the nozzle tubes 1 1 2 8 is open, and the carrier gas supplied to the supply ports 1 1 1 4 can be introduced downward from the nozzle tubes 1 1 2 8.
- the liquid medium (solvent) contained in the multi-analyte sample is vaporized into solvent vapor.
- the outlet 1 1 1 6 is formed in the upper part of the container 1 1 1 0, and the solvent vapor is derived from the container 1 1 1 0 force through the outlet 1 1 1 6. .
- One end of a pipe 1 0 2 0 is connected to the outlet 1 1 1 6 formed in the upper part of the container 1 1 1 0.
- the other end of the pipe 1 0 2 0 is connected to the supply port 1 1 4 2 of the first condensing / separating device 1 1 4 0.
- the solvent vapor derived from the outlet 1 1 1 6 is supplied to the first condensing / separating device 1 1 4 0 via the pipe 1 0 2 0.
- the first condensing / separating device 1 1 4 0 includes a storage tank 1 1 4 4 and a condensing cooling condenser 1 1 4 6 connected to an upper portion of the storage tank 1 1 4 4.
- the supply port 1 1 4 2 described above is formed in the vicinity of the lower end of the condenser for condensing 1 1 4 6.
- a cooling medium pipe 1 1 4 8 formed in a spiral shape is provided inside the condenser condenser for condensing 1 1 4 6, a cooling medium pipe 1 1 4 8 formed in a spiral shape is provided.
- the refrigerant pipe 1 1 4 8 has two ends, one end is connected to the refrigerant supply pipe 10 0 50 and the other end is connected to the refrigerant discharge pipe 1 0 5 2. .
- the separated carrier gas is led out from the outlet 1 1 50 formed in the upper part of the condenser condenser for condensation 1 1 4 6 described above.
- One end of a pipe 1 0 2 2 is connected to the outlet 1 1 5 0.
- the other end of the pipe 1 0 2 2 is connected to the supply port 1 1 6 2 of the first pump 1 1 60.
- the first pump 1 1 60 has an outlet 1 1 6 4 for extracting the supplied carrier gas.
- a power source (not shown) for supplying power to the first pump 1 1 6 0 is electrically connected to the first pump 1 1 6 0, and the carrier led out from the outlet 1 1 6 4 Solvent vapor is led out from the outlet 1 1 6 4 together with the carrier gas supplied to the supply port 1 1 6 2 so that the gas flow rate becomes a desired flow rate.
- the carrier gas having a predetermined flow rate is led out together with the solvent vapor from the outlet 1 1 6 4 formed in the first pump 1 1 60.
- One end of a pipe 1 0 2 4 is connected to the outlet 1 1 6 4.
- the other end of the pipe 1 0 2 4 is connected to the supply port 1 1 7 2 of the second condensing / separating device 1 1 70.
- the solvent vapor together with the carrier gas derived from the outlet 1 1 6 4 is supplied to the second condensation / separation device 1 1 7 0 via the pipe 1 0 2 4.
- the second condensing and separating apparatus 1 1 70 includes a storage tank 1 1 7 4 and a condensing cooling capacitor 1 1 7 6. Inside the condensing cooling condenser 1 1 7 6 is provided a refrigerant tank 1 1 7 8 for storing the refrigerant.
- the refrigerant tank 1 1 7 8 includes a refrigerant supply port 1 1 8 0 for supplying the refrigerant to the refrigerant tank 1 1 7 8, and a refrigerant outlet 1 1 8 2 for discharging the refrigerant from the refrigerant tank 1 1 7 8. And are provided.
- One end of a spirally formed pipe 1 1 84 is connected to the supply port 1 1 7 2 described above.
- the other end of the pipe 1 1 8 4 is connected to the outlet 1 1 8 6 formed below the condenser cooling condenser 1 1 7 6.
- the outlet 1 1 8 6 is connected to the storage tank 1 1 7 4 via the pipe 1 0 2 6.
- the solvent condensed in the pipe 1 1 8 4 is supplied to the storage tank 1 1 7 4 through the pipe 1 0 2 6.
- An outlet 1 1 8 8 is formed above the storage tank 1 1 7 4 and is separated from the solvent by condensing the solvent vapor supplied from the cooling condenser 1 1 7 6 for condensation.
- Carrier gas hereinafter abbreviated as separation carrier gas
- the solvent supplied from the condenser cooling condenser 1 1 7 6 is stored in the lower part of the storage tank 1 1 7 4.
- the condensing cooling condenser 1 1 76 is also provided with a circulation pump 1 1 90 for circulating the refrigerant.
- This circulation pump 1 1 90 can circulate the refrigerant supplied to the refrigerant tank 1 1 7 8 and the refrigerant supplied to the refrigerant pipe 1 1 4 8 of the condensing cooling condenser 1 1 4 6. .
- the separation carrier gas is led out from the outlet 1 1 8 8 formed in the upper part of the storage tank 1 1 7 4 described above.
- One end of the pipe 1 0 2 8 is connected to the outlet 1 1 8 8.
- the other end of the pipe 1 0 2 8 is connected to the supply port 1 2 0 2 of the second pump 1 2 0 0.
- the second pump 1 2 0 0 is formed with a lead-out port 1 2 0 4 for leading the supplied carrier gas.
- the second pump 1 2 0 0 is supplied with the carrier gas supplied to the supply port 1 2 0 2 so that the derived amount of the carrier gas derived from the outlet 1 2 0 4 has a desired flow rate. Derived from 1 2 0 4
- One end of a pipe 10 30 is connected to the outlet 1 2 0 4 formed in the second pump 1 2 0 0.
- the other end of the pipe 1 0 30 is connected to the supply port 1 1 1 4 of the container 1 1 1 0 of the concentrator 1 1 0 0 described above.
- the carrier gas derived from the second pump 1 2 0 0 is supplied to the container 1 1 1 0 of the concentrator 1 1 0 0. With such a configuration, the carrier gas can be circulated.
- the concentrating device 1 100 is configured as the vaporizing means 100 2.
- the second condensing / separating device 1 170 or the first condensing / separating device 1 1 40 and the second condensing / separating device 1 1 70 constitutes a condensing / separating means 1 0 4.
- the second pump 1 2 0 0, or the first pump 1 1 60 and the second pump 1 2 0 0 and force, gas supply means 1 0 0 6 are configured.
- the medium recovery device 10 10 is provided with a feeding pipe 10 32.
- One end of the feed pipe 1 0 3 2 is connected to the container 1 1 1 1 0 0 of the concentrator 1 1 0 0 1 1 3 0, and the other end of the feed pipe 1 0 3 2 is the pipe 1 ⁇ 2 Connected to the supply port 1 1 9 2 provided in the middle of 8.
- the solvent vapor evaporated in the container 1 1 1 0 is removed from the first condensing / separating device 1 1 4 0, the first pump 1 1 6 0, and the second condensing / separating device 1 1 7 0.
- the pressure inside the second condensing and separating device 1 1 7 0 and the pressure inside the concentrator 1 1 0 0 can be controlled. can do.
- a flow rate adjusting device such as a cock is provided in the middle of the feeding pipes 10 3 2. By doing so, the flow rate of the solvent vapor returned to the concentrator 1 1 0 0 can be adjusted, and the partial pressure of the solvent vapor in the concentrator 1 1 0 0 0 can be adjusted.
- the ethanol-containing substance OO mL used as a chromatographic eluent is introduced into the solvent supply closed tank 50 and added.
- the reduced pressure dual pump P-2 the recovered organic solvent was dripped and injected into the closed system from the recovered solvent supply port 24 at an injection flow rate of 34 mL / min.
- Diaphragm pump P—1 is adjusted so that the gas (A ir) flow rate is 6 L / min, and conduit 6 is fixed by branch pipe 3 6 via conduit 60 (outer diameter 6 mm, inner diameter 4 MI).
- Zero tip force 1 L capacity round bottom flask receiver 26 6 was placed 6 cm away from the bottom of 6 6.
- a hollow ring of about 2 to 4 mm is formed on the liquid surface of the recovered organic solvent collected about 3 to 4 cm in the round bottom flask receiver 26 for evaporation through the conduit 60.
- a gas was blown onto the recovered organic solvent obliquely with respect to the interface.
- Evaporating round bottom flask receiver 26 The gas blown to the bottom of 6 is co-evaporated with the vaporized ethanol.
- the heating section 22 has a straight tubular evaporation section (inner diameter: 6 O ram, length: about 20 O ram) and a snake tube composed of an outer diameter of eight thigh pipes arranged inside thereof. The diameter is 55 mm outer diameter.
- Warm bath solution is supplied from warm bath 40 to the inside of this serpentine tube by warm bath circulation pump P-3, and the warm bath solution is circulated between warm bath 40 and the heating section 22 including the serpentine tube.
- the warm bath 40 and the warming part 22 were kept at 65 ° C.
- the recovered solvent dropped from the recovered solvent supply port 24 moves downward along the outer surface of the serpentine tube and the inner wall surface of the straight tube evaporator inside the calorific temperature portion 22, and below the warming portion.
- Part of the gas was vaporized.
- Ethanol vaporized in both the evaporative round bottom flask receiver and the heating section 22 2 gradually reaches the condenser condenser for condensation 10 0 2 through the connecting conduit 70, where it is cooled and the ethanol is condensed. It became liquid and gradually accumulated in the 1 L round bottom flask receiver 10 4. Under the above conditions, almost 100% ethanol was recovered in the round bottom flask receiver 104 at a rate of about 8.5 mL / min.
- Example 1 As shown in Table 1, the heating bath temperature 65 ° C in Example 1 was changed to the heating bath temperature 76 ° C, the recovery solvent injection flow rate 3 4 mL / min to the recovery solvent injection flow rate 5. O mL / min, The same procedure as in Example 1 was performed except that the pump P-1 flow rate 6 L / min was replaced with the pump P-1 flow rate 3 OL / min. The results obtained are shown in Table 1.
- Example 1 As shown in Table 1, the type of organic solvent recovered in Example 1 was changed from ethanol to methanol, heating bath temperature 65 ° C to heating bath temperature 5 4 ° C, recovery solvent injection flow rate 3 4 mL / min was carried out in the same manner as in Example 1 except that the recovery solvent injection flow rate was changed to 6.8 mL / min. The results obtained are shown in Table 1.
- Example 1 As shown in Table 1, the type of organic solvent recovered in Example 1 was changed from ethanol to ethyl acetate, heating bath temperature 65 ° C to heating bath temperature 76 ° C, recovery solvent injection flow rate 3 4 mL / The same procedure as in Example 1 was performed except that min was changed to a recovery solvent injection flow rate of 10 .O mL / min. The results obtained are shown in Table 1.
- Example 5 As shown in Table 1, the type of the organic solvent recovered in Example 1 was changed from ethanol to black mouth form, and the heating bath temperature was 65 ° C and the heating bath temperature was 54. First, the same procedure as in Example 1 was performed, except that the recovery solvent injection flow rate of 34 mL / min was replaced with the recovery solvent injection flow rate of 10 .O mL / min. The results obtained are shown in Table 1. Table 1
- the solvent is operated without boiling, a method and an apparatus capable of purifying the solvent in a preferable operating state are provided.
- a mixture containing a liquid medium and a non-volatile substance is “concentrated” and recovered as a liquid medium without discharging the liquid medium such as a solvent into the atmosphere.
- An apparatus is provided that can.
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Priority Applications (4)
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US10/577,510 US7931782B2 (en) | 2003-10-29 | 2004-03-26 | Method for recovering a liquid medium and system for recover a liquid medium |
EP04723801A EP1690578B1 (en) | 2003-10-29 | 2004-03-26 | Collecting method and collecting system of organic solvent |
AT04723801T ATE532565T1 (de) | 2003-10-29 | 2004-03-26 | Auffangverfahren bzw. auffangsystem für organisches lösungsmittel |
CN2004800308125A CN1871054B (zh) | 2003-10-29 | 2004-03-26 | 液状介质的回收方法以及液状介质的回收装置 |
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JP2003369166A JP4547141B2 (ja) | 2003-10-29 | 2003-10-29 | 液状の媒体の回収装置 |
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US (1) | US7931782B2 (ja) |
EP (2) | EP1690578B1 (ja) |
JP (1) | JP4547141B2 (ja) |
CN (2) | CN101920125A (ja) |
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Also Published As
Publication number | Publication date |
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EP2275183A1 (en) | 2011-01-19 |
EP1690578A4 (en) | 2007-07-04 |
US20080035467A1 (en) | 2008-02-14 |
JP4547141B2 (ja) | 2010-09-22 |
JP2005131504A (ja) | 2005-05-26 |
ATE532565T1 (de) | 2011-11-15 |
US7931782B2 (en) | 2011-04-26 |
CN1871054A (zh) | 2006-11-29 |
CN1871054B (zh) | 2011-02-16 |
EP1690578B1 (en) | 2011-11-09 |
CN101920125A (zh) | 2010-12-22 |
EP1690578A1 (en) | 2006-08-16 |
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