CN105903409A - Novel thiohydracrylic acid pressure hydrolysis reaction device - Google Patents
Novel thiohydracrylic acid pressure hydrolysis reaction device Download PDFInfo
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- CN105903409A CN105903409A CN201610430816.7A CN201610430816A CN105903409A CN 105903409 A CN105903409 A CN 105903409A CN 201610430816 A CN201610430816 A CN 201610430816A CN 105903409 A CN105903409 A CN 105903409A
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- heat exchanger
- reactor
- pipeline
- heating heat
- heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/02—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols
- C07C319/12—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols by reactions not involving the formation of mercapto groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00103—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor in a heat exchanger separate from the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
- B01J2219/0245—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components of synthetic organic material
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Abstract
The invention relates to a pressure hydrolysis reaction device for thiohydracrylic acid preparation. The novel thiohydracrylic acid pressure hydrolysis reaction device is long in service life and safer. No jacket needs to be added to a reaction kettle, a pipeline is connected to the bottom of the reaction kettle, a tee joint is arranged at one end of the pipeline, the other two connectors of the tee joint are connected with the bottom of a heating heat exchanger and the bottom of a cooling heat exchanger respectively, and the top of the heating heat exchanger is communicated with the upper portion of the reaction kettle, so that the reaction kettle and the heating heat exchanger form a heating cycle; after liquid materials are evaporated or heated by hot oil or hot water in the heating heat exchanger, liquid will spontaneous circulate under the effect of the temperature difference, and no external power device needs to be introduced. The pressure operation can be achieved, the device stability is high, leakage is not likely to be caused, no power device needs to be added in the whole device, and the service life is greatly prolonged.
Description
Technical field
The present invention relates to a kind of pressurized hydrolysis consersion unit, be specifically related to a kind of pressure (hydraulic) water preparing mercaptopropionic acid
Solve consersion unit.
Background technology
Mercaptopropionic acid (CAS NO.:107-96-0) is a kind of poisonous transparency liquid, has strong sulfide gas
Taste, its another name has β-mercaptopropionic acid, sulfur for lactic acid, 3-mercaptopropionic acid, Β-sulfur for lactic acid, Β-sulfur hydrogen
Base propanoic acid, 3-mercaptopropionic acid, BETA-mercaptopropionic acid, 3-2-mercaptopropionic acid, 3-thiohydracrylic acid etc..Sulfydryl third
Acid is a kind of important organic synthesis raw material, is the intermediate of medicine chlomezanone, is also pvc material
Stabilizer.
In prior art, in mercaptopropionic acid production process, can acid adding after acrylonitrile and NaHS additive reaction
Hydrolysis, the equipment that hydrolytic process is used generally uses jacketed open type enamel reaction still, by chuck
Be passed through and add vapours or hot water material in reactor is heated, and due in chuck different periods be passed through
Water and steam easily cause reactor kettle and damage, additionally, jacketed enamel reaction still bearing capacity is limited, and cylinder
Internal design pressure is only 0.4MPa, is suitable only for operating at ambient pressure.Owing to manufacture requirements and condition limit,
Easily revealing at end socket gasket seal, its enamel being primarily due to end socket junction in the fabrication process is smooth
Degree it is difficult to ensure that, at end socket securing member be A type clamping hoop type bolt fastening, installation process easily occurs that end socket is subject to
The situations such as power is irregular；Due to material condition limit gasket seal use polytetrafluoroethylene membrane cladding asbestos cord pad, four
Fluorine film has at substantial amounts of out-of-flatness at overlap joint or cladding, and long-time use rapid wear is easily revealed；Agitating device
Using steel body cylinder-packing enamel, relatively big from body weight, material is relatively big to blade abrasion, uses the time shorter, wards off
Porcelain shaft manufacturing process circularity ensures poor, and therefore mechanical seal is the most fragile, and stirring is to use cantilevered
Stationary seat is big with end socket interface connecting place thermograde, is again that gas-liquid mixed point, pad and enamel damage amount are non-
Chang Gao.In sum, in prior art, the reactor of mercaptopropionic acid is short for service life, generally only has and makes half a year
There is many potential safety hazards during life-span, and its use, pole is unfavorable for safety in production and cost control.
Summary of the invention
The main object of the present invention is to provide length in a kind of service life, safer novel mercapto propanoic acid pressure (hydraulic) water
Solve consersion unit.
For achieving the above object, the technical solution used in the present invention is: novel mercapto propanoic acid pressurized hydrolysis reacts
Equipment, including reactor, reactor still top is provided for adding the dog-house of reaction mass in reactor,
Reactor top arranges stirring motor and the stirring stirring material inside reactor driven by stirring motor
Axle, described pressurized hydrolysis consersion unit also includes heating heat exchanger and cooling heat exchanger；
Described reactor side wall upper part passes through pipeline communication heating heat exchanger top, passes through bottom described reactor
Bottom pipeline communication heating heat exchanger；Bottom described reactor with bottom heating heat exchanger between the pipeline that is connected
On arrange threeway connect cooling heat exchanger bottom, described cooling heat exchanger top arranges discharge nozzle；
Described reactor side wall upper part connects the duct height at heating heat exchanger top less than the liquid level in reactor
Highly；Heat control valve, described threeway and cooling are set on the pipeline between described threeway and heating heat exchanger
Cooling control valve is set on the pipeline between heat exchanger.
It is to say, reactor need not add mounting clip sleeve, connecting tube road bottom reactor, pipeline one end is arranged
Threeway, other two interfaces of threeway connect bottom heating heat exchanger and bottom cooling heat exchanger respectively, described
Heating heat exchanger top connect with reactor top, such reactor and heating heat exchanger form a heating
Circulation, liquid material is by after steam or deep fat or hot water heating in heating heat exchanger, and liquid can be in the temperature difference
Effect under automatic circulating, and without introducing external power-equipment.And by reacting before subsequent processing need to be entered
The conveying of still pressure can enter in cooling heat exchanger and cool down.Heat control valve only need to be opened when need to heat,
Stopping heating and can close heat control valve, hydrolysis need to be closed heat control valve after completing and be opened cooling
Control valve.
Further, described cooling heat exchanger and heating heat exchanger are vertical piece of cellular type heat exchanger, described thing
Tube side walked by material, and heating or cooling medium walks shell side.
Further, described cooling heat exchanger and heating heat exchanger are graphite heat exchanger.I.e. cooling heat exchanger and
The heat-transferring assembly of heating heat exchanger is graphite material.
Further, the internal roller coating anticorrosive high molecular layer of described reactor, each connecting tube of described reaction unit
Road is steel lining tetrafluoro pipeline.I.e. the internal roller coating anticorrosive high molecular layer of reactor, can be that politef also may be used
To be the anticorrosive high molecular such as Kynoar, modified Teflon；Connection pipeline used in the present invention
For steel lining tetrafluoro pipeline, because the tetrafluoroethene layer length of steel lining tetrafluoro pipe interior is longer than outer metal layer,
I.e. tetrafluoroethene layer can be emerged external metallization pipeline, so when connecting pipeline and carrying out Flange joint, pipeline it
Between can realize pipeline body and seal, it is not necessary to additionally use pad, reduce and reveal.
Further, described stirring motor axle is connected by pipeline leakage plugging device with shaft.The i.e. end of two axles is put
Enter in the passage in pipeline leakage plugging device, then pipeline leakage plugging device two halves are closed tighten fixed screw, so on the one hand make two
Individual axle connects tightr, on the other hand the concentricity of two axles can also be made to increase, when reducing shaft rotation
The centrifugal force produced.
Further, on described shaft, paddle is double-layer cross paddle paddle.That is paddle
Being divided into upper and lower two-layer, every layer of two paddle having point-blank, the paddle of two-layer is mutually perpendicular to point
Cloth.
Further, mechanical seal is set between reactor and shaft.That is reactor open top
Confession shaft stretches in reactor, arranges mechanical shaft seal device between reactor opening part and shaft, to incite somebody to action
The external world and reactor internal insulation.
It is further preferred that described heat control valve and cooling control valve are steel lining tetrafluoro ball valve.Computer heating control
Valve and cooling control valve can be the valves that butterfly valve, ball valve even check valve etc. has regulation uninterrupted,
But the most preferably ball valve, and it is that the ball valve with tetrafluoroethene coating is to increase corrosion resistance.
Further, temperature sensor and pressure transducer, described sensor acquisition are set in described reactor
Signal is delivered to PLC control system, and aperture and the heating of described PLC control system control heat control valve are changed
The uninterrupted adding thermal medium of hot device.That is temperature sensor and pressure transducer are set in reactor
To measure its internal temperature and pressure, the signal recorded is delivered to PLC control system, according to arranging in advance
Pressure and temperature parameter, PLC control system adds thermal medium to the aperture of heat control valve and heating heat exchanger
Flow be controlled, be achieved in that the temperature and pressure in Automated condtrol reactor, increase reaction system
Stability.
Novel mercapto propanoic acid pressurized hydrolysis consersion unit of the present invention has the advantage that
1. overcome original apparatus integration equipment to cause the equipment cycle of operation of equipment short, flimsy disadvantage, though
So one-time investment is higher than integration apparatus, but more original device of life of equipment is greatly improved, by
Existing equipment changes one group in six months, becomes 3-5 and changes one group, checking maintenance number of times is greatly decreased, and minimizing sets
Standby maintenance time, is greatly reduced production cost, increases profit margin；Steel body roller coating anticorrosive high molecular equipment exists
5-10 can be reached on service life, be significantly increased compared with enamel equipment design life.
2. steel body roller coating tetrafluoro equipment is non-standard equipment, can customize volume, and equipment according to the size of volume of production
In manufacturing process, circularity, surface flatness, flatness can be effectively ensured, and therefore equipment design pressure is permissible
Reach the condition of pressurized operation.
3. heat exchanger is graphite material, pressure and heat resistance is preferable.And can heat according to inventory, temperature,
Cool time, selected equipment hot side amassed, and steam and recirculated water consumption are little, environmental protection, No leakage.Temperature controls can
To adjust in real time according to steam, recirculated water valve opening.
4. heating heat exchanger utilizes temperature difference to carry out forced circulation, without external power, and can effective resistance to salting-out, anti-
Fouling.Reduce rotating machinery, reduce leak point and maintenance capacity；Cooling heat exchanger uses the conveying of reactor pressure,
Without external power, energy-conserving and environment-protective.
5. all junctions of this covering device all can not use attachment spacers, uses the pipeline of steel lining tetrafluoro, equipment
Body seals.Reduce leakage factor, reduce and put into；This device can realize pressurized operation, with original device phase
Ratio, is effectively increased reaction conversion ratio, reduces hydrolysis time, increases production capacity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention a kind of novel mercapto propanoic acid pressurized hydrolysis consersion unit.
Detailed description of the invention
It is described as follows with reference to Fig. 1: novel mercapto propanoic acid pressurized hydrolysis consersion unit, including reactor 6,
Arranging on reactor 6 and be easy to the bearing 11 that equipment is laid, reactor 6 still top is provided in reactor 6
Adding the dog-house 2 of reaction mass, reactor 6 top arranges stirring motor 3 and is driven by stirring motor 3
The shaft 12 stirring material inside reactor 6, described pressurized hydrolysis consersion unit also includes that heating is changed
Hot device 7 and cooling heat exchanger 1；Described reactor 6 side wall upper part passes through pipeline communication heating heat exchanger 7 top,
By bottom pipeline communication heating heat exchanger 7 bottom described reactor 6；With heating bottom described reactor 6
Threeway is set on the pipeline connected between bottom heat exchanger 7 and connects the bottom of cooling heat exchanger 1, described cooling
Heat exchanger 1 top arranges discharge nozzle；Described reactor 6 side wall upper part connects the pipe at heating heat exchanger 7 top
Road height is less than the liquid level in reactor 6；Set on pipeline between described threeway and heating heat exchanger 7
Put heat control valve 8, the pipeline between described threeway and cooling heat exchanger 1 arranges cooling control valve 9；Institute
State heat control valve 8 and cooling control valve 9 is steel lining tetrafluoro ball valve.
Described cooling heat exchanger 1 and heating heat exchanger 7 are vertical piece of cellular type heat exchanger, and pipe walked by described material
Journey, heating or cooling medium walks shell side；Described cooling heat exchanger 1 and heating heat exchanger 7 are graphite heat exchanger；
The internal roller coating anticorrosive high molecular layer of described reactor 6, each pipeline that connects of described reaction unit is steel lining tetrafluoro
Pipeline.
Described stirring motor 3 axle is connected by pipeline leakage plugging device 4 with shaft 12；Stir on described shaft 12
Leaf 10 is double-layer cross paddle paddle；Mechanical seal 5 is set between reactor 6 and shaft 12.Described
Temperature sensor and pressure transducer, described temperature sensor and pressure transducer collection are set in reactor 6
Signal be delivered to PLC control system, described PLC control system controls the aperture of heat control valve 8 and adds
The uninterrupted adding thermal medium of heat exchanger 7.
Claims (9)
1. novel mercapto propanoic acid pressurized hydrolysis consersion unit, including reactor (6), reactor (6) still top sets
Putting the dog-house (2) for adding reaction mass in reactor (6), reactor (6) top arranges stirring
Motor (3) and the shaft (12) at reactor (6) internal stirring material driven by stirring motor (3),
It is characterized in that: described pressurized hydrolysis consersion unit also includes heating heat exchanger (7) and cooling heat exchanger (1)；
Described reactor (6) side wall upper part passes through pipeline communication heating heat exchanger (7) top, described reactor
(6) bottom is by pipeline communication heating heat exchanger (7) bottom；Described reactor (6) bottom and heating heat exchange
On the pipeline connected between device (7) bottom, threeway is set and connects the bottom of cooling heat exchanger (1), described cooling
Heat exchanger (1) top arranges discharge nozzle；
Described reactor (6) side wall upper part connects the duct height at heating heat exchanger (7) top less than reactor
(6) liquid level in；On pipeline between described threeway and heating heat exchanger (7), heat control valve is set
(8), the pipeline between described threeway and cooling heat exchanger (1) arranges cooling control valve (9).
Pressurized hydrolysis consersion unit the most according to claim 1, it is characterised in that: described cooling heat transferring
Device (1) and heating heat exchanger (7) are vertical piece of cellular type heat exchanger, and described material walks tube side, heating or cold
But medium walks shell side.
Pressurized hydrolysis consersion unit the most according to claim 2, it is characterised in that: described cooling heat transferring
Device (1) and heating heat exchanger (7) are graphite heat exchanger.
Pressurized hydrolysis consersion unit the most according to claim 1, it is characterised in that: described reactor (6)
Internal roller coating anticorrosive high molecular layer, each pipeline that connects of described reaction unit is steel lining tetrafluoro pipeline.
Pressurized hydrolysis consersion unit the most according to claim 1, it is characterised in that: described stirring motor
(3) axle is connected by pipeline leakage plugging device (4) with shaft (12).
Pressurized hydrolysis consersion unit the most according to claim 1, it is characterised in that: described shaft (12)
Upper paddle (11) is double-layer cross paddle paddle.
Pressurized hydrolysis consersion unit the most according to claim 1, it is characterised in that: described reactor (6)
And mechanical seal (5) is set between shaft (12).
Pressurized hydrolysis consersion unit the most according to claim 1, it is characterised in that: described computer heating control
Valve (8) and cooling control valve (9) are steel lining tetrafluoro ball valve.
Pressurized hydrolysis consersion unit the most according to claim 1, it is characterised in that: described reactor (6)
Inside arranging temperature sensor and pressure transducer, described sensor acquisition signal is delivered to PLC control system,
What described PLC control system controlled the aperture of heat control valve (8) and heating heat exchanger (7) adds thermal medium
Uninterrupted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430816.7A CN105903409A (en) | 2016-06-16 | 2016-06-16 | Novel thiohydracrylic acid pressure hydrolysis reaction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430816.7A CN105903409A (en) | 2016-06-16 | 2016-06-16 | Novel thiohydracrylic acid pressure hydrolysis reaction device |
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| CN105903409A true CN105903409A (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610430816.7A Pending CN105903409A (en) | 2016-06-16 | 2016-06-16 | Novel thiohydracrylic acid pressure hydrolysis reaction device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2380283Y (en) * | 1997-09-02 | 2000-05-31 | 邓跃敏 | Multifunction efficient cold-hot extraction separator |
| US6241917B1 (en) * | 1996-11-22 | 2001-06-05 | Albemarle Corporation | Halogen exchange reactions in preparing catalysts and their precursors |
| CN202893326U (en) * | 2012-09-25 | 2013-04-24 | 浙江华特斯聚合物科技有限公司 | External heating self-circulation esterification reaction device |
| CN203565078U (en) * | 2013-11-29 | 2014-04-30 | 浙江扬帆新材料股份有限公司 | External circulation heat exchange reaction kettle |
| CN205965775U (en) * | 2016-06-16 | 2017-02-22 | 重庆天原化工有限公司 | Novel mercaptopropionic acid pressurization hydrolysis reaction device |
-
2016
- 2016-06-16 CN CN201610430816.7A patent/CN105903409A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6241917B1 (en) * | 1996-11-22 | 2001-06-05 | Albemarle Corporation | Halogen exchange reactions in preparing catalysts and their precursors |
| CN2380283Y (en) * | 1997-09-02 | 2000-05-31 | 邓跃敏 | Multifunction efficient cold-hot extraction separator |
| CN202893326U (en) * | 2012-09-25 | 2013-04-24 | 浙江华特斯聚合物科技有限公司 | External heating self-circulation esterification reaction device |
| CN203565078U (en) * | 2013-11-29 | 2014-04-30 | 浙江扬帆新材料股份有限公司 | External circulation heat exchange reaction kettle |
| CN205965775U (en) * | 2016-06-16 | 2017-02-22 | 重庆天原化工有限公司 | Novel mercaptopropionic acid pressurization hydrolysis reaction device |
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