WO2003057354A1 - Dispositif et procede d'agitation en particulier pour la dispersion ou l'emulsification de deux liquides non miscibles - Google Patents
Dispositif et procede d'agitation en particulier pour la dispersion ou l'emulsification de deux liquides non miscibles Download PDFInfo
- Publication number
- WO2003057354A1 WO2003057354A1 PCT/FR2003/000073 FR0300073W WO03057354A1 WO 2003057354 A1 WO2003057354 A1 WO 2003057354A1 FR 0300073 W FR0300073 W FR 0300073W WO 03057354 A1 WO03057354 A1 WO 03057354A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow axis
- lining
- liquids
- axis
- mixing element
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
- B01F27/1152—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis with separate elements other than discs fixed on the discs, e.g. vanes fixed on the discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/43—Mixing liquids with liquids; Emulsifying using driven stirrers
- B01F23/431—Mixing liquids with liquids; Emulsifying using driven stirrers the liquids being introduced from the outside through or along the axis of a rotating stirrer, e.g. the stirrer rotating due to the reaction of the introduced liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/41—Emulsifying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/118—Stirrers in the form of brushes, sieves, grids, chains or springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/81—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
- B01F27/2122—Hollow shafts
Definitions
- the invention relates to a stirring device and method, in particular applied to the dispersion or the emulsion of two immiscible liquids.
- rotary agitators comprising one or more mobiles fixed on a shaft.
- the shear, the turbulence and the circulation that the agitator introduces into the liquid to be mixed then depend in particular on the characteristics of the mobile, in particular on its geometry.
- agitators examples include the rotor and stator mixers. Devices of this kind are marketed by Rayneri under the brand name Ultramix and by
- the static mixer requires the circulation of the liquid to be mixed. Thus, most often, it will be necessary to resort to a pump. These devices are by otherwise not very suitable for the preparation of dispersions or emulsions of immiscible liquids.
- English Patent No. 237,325 describes a device for mixing, emulsifying or atomizing immiscible liquids or gas-liquid mixtures.
- This device consists of two coaxial discs mounted on an axis, separated by an annular space occupied by a lining permeable to fluids.
- the fluid to be treated is brought by a tube to the center of the assembly constituted by the discs and the lining.
- the centrifugal force expels the fluid through the packing, which plays the same role as a static mixer by dividing the flow of liquid and imposing shear forces on it, which leads to a mixture more and more intimate when the fluid progresses from the center of the assembly to its periphery.
- U.S. Patent No. 6,280,078 describes a liquid mixing and aeration device composed of a concentric stack of rings of the same outside diameter and decreasing inside diameter fixed on a common axis and separated from each other by wedges delimiting between the rings free spaces allowing the passage of the liquid.
- the device is immersed in the liquid to be mixed or aerated. When it is rotated, the centrifugal force causes the liquid, and, if necessary, air to be drawn above the free surface of the liquid, and expelled through the free spaces which separate the rings.
- the apparatus described in this US Pat. No. 6,280,078, which is especially suitable for aeration of liquids, does not include any particular device intended to cause intimate mixing of the liquids to be mixed, in the case of the mixture of two immiscible liquids .
- the present invention aims to provide a device and a stirring method, in particular for the dispersion and emulsification of immiscible liquids, which does not have the drawbacks of the prior art.
- the subject of the invention is therefore a rotary stirring device comprising a mixing element operating according to the principle of the static mixer, fixed radially on a hollow axis, this mixing element comprising a cavity occupied by a lining and communicating with the space inside the hollow axis and the fluid medium to be agitated.
- the mixing element comprises: two discs drilled in their center; - a fixing device making the two discs integral with each other by delimiting a space between them; and a lining arranged in the space thus delimited, the hollow axis being formed of an upper part secured to one of the discs and of a lower part secured to the other disc.
- one or more openings in the upper and lower part of the hollow axis allow the fluids to be mixed to circulate in the axis and in the packing.
- the fixing between the first and the second disc is carried out by one or more spacers.
- the opening in the lower part of the hollow axis is formed by its end.
- the opening in the upper part of the hollow axis consists of an opening formed on the side of the hollow axis.
- one or more pipes are fixed radially on the hollow axis. They communicate with the interior space of the axis and are filled with packing similar to the types of packing used in static mixers of the prior art.
- the lining advantageously consists of a set of solid elements of suitable material, that is to say in particular of material inert with respect to the fluids to be mixed.
- the solid elements can be for example of metallic material, plastic, ceramic or glass. They can be arranged in a regular arrangement or not inside the cavity constituting the free space of the mixing element.
- the lining will advantageously be fixed in the cavity so as to prevent its displacement or its loss under the movement of the fluids to be mixed.
- the filling may in particular be composed of one or more layers of mesh.
- This mesh is advantageously metallic.
- It can for example comprise two "layers" separated by a space forming a mixing zone, possibly provided with a perforated plate possibly wavy at its periphery or with a mesh having a larger mesh opening.
- Another object of the invention is a process for preparing a dispersion or emulsion of immiscible liquids by means of a rotary stirring device comprising a mixing element operating according to the principle of the static mixer, fixed radially on an axis hollow, this mixing element comprising a cavity occupied by a lining, said cavity communicating on the one hand with the interior space of the hollow axis, on the other hand with the fluid medium to be agitated, in which the agitator is placed in rotation, the liquids to be mixed are sucked through hollow axes under the effect of centrifugal force, mix intimately by crossing the packing before being expelled at the periphery of the packing.
- Another object of the invention is the use of the device according to the invention for the preparation of dispersions and / or emulsions of immiscible liquids.
- the device according to the embodiment illustrated in the single figure comprises the following elements: a first upper part comprising a first disc 5 fixed by any known mechanical means (for example welding, screwing) to the lower end of a hollow axis 1
- the hollow axis 1 is pierced near its upper end with a lateral orifice 6 allowing the circulation of the liquid in which the device is immersed;
- the lower end of the hollow axis 2 is open and allows free passage to the liquid in which the device is immersed.
- the two discs 5, 5 ' are made integral with one another, while providing a space between them by any suitable means.
- this means consists of several spacers located on the periphery of the discs and regularly distributed, for example at 120 ° from one another, and providing between the discs a cylindrical space.
- the number of spacers connecting the two discs will preferably be proportional to the size of the device. If only one spacer is used, balance will be required to ensure proper rotation of the assembly.
- the space between the discs 5, 5 ' is filled with a lining forming baffles.
- Such a lining is preferably composed of a stack of several layers of metal grids cut into the shape of a disc of the same diameter as the discs 5, 5 '.
- a solid axis making it possible to couple the device, either directly or via of a speed reducer, to a motor capable of imparting to it a rotational movement.
- the hollow axis 1 and the disc 5 on the one hand, the hollow axis 2 and the disc 5 'on the other hand each form an assembly, the axis and the disc being made integral one of the 'other by any suitable means (welding, screwing, etc.).
- the discs 5, 5 ′ can in principle be replaced by other elements considered to be equivalent when they define a mixing space comprising the linings, connected to the two hollow axes and allowing a radial extraction of the resulting mixture.
- These elements are such that they allow good rotation of the assembly.
- the liquids to be mixed are introduced into a suitable tank in which the agitator is placed.
- the interface between the two liquids is located at the level of the lining, that is to say that each axis is immersed in a separate liquid.
- the device according to the invention allows the preparation of an emulsion of two liquids at a much lower speed than the known stator rotor agitators.
- a stirring device according to the embodiment indicated in the figure was used to disperse a mixture of water and standard multigrade engine oil.
- a stable emulsion was obtained in less than 5 minutes with a rotation speed of only 60 rpm for a disc diameter of 11 cm.
- the method according to the invention consists in using the device according to the invention to produce a dispersion or emulsion of immiscible liquids. This process can be continuous or discontinuous.
- the method and the device according to the invention therefore make it possible to produce a mixture in a simple, flexible, rapid and inexpensive manner, effective at low speed of rotation, and particularly suitable for the dispersion or emulsification of immiscible liquids.
- the invention makes it possible to mix poorly compatible liquid constituents before reaction or polymerization. Since there is no vortex, the invention makes it possible to work with reduced amounts of surfactants and to avoid foaming.
- the agitator according to the invention promotes liquid / liquid transfers by increasing the specific surface, promotes the rapid dispersion of liquids or solids in a liquid without shearing, therefore without heating.
- a Rushton turbine, a rotor and stator mixer from the aforementioned company IKA and a device according to the invention were compared with each other.
- the transparent test tank had a diameter of 28 cm, was equipped with four counter-blades on its periphery arranged symmetrically and contained about 20 liters of liquids.
- the Rushton turbine (diameter 10cm) and the device according to the invention (diameter 11cm) were introduced (in three parallel tests) into the test tank containing 50% "of oil and 50% of water (% by volume) and driven in rotation by means of a variable speed stirring motor.
- the interface between oil and water disappears very quickly, the viscosity changes rapidly and stabilizes at 560 cps at 300 rpm and at 620 cps at 500 rpm .
- the solution is of a milky white color and it is still possible to distinguish with the naked eye a few drops of oil whose size is of the order of 0.5 mm and which have not been dispersed. No vortex occurs and the surface of the agitated medium remains flat.
- the device according to the invention allows pumping and quickly ensures great homogeneity of the treated solution, without causing a vortex. Unlike the IKA mixer, the device according to the invention does not need a loop. It is therefore much more flexible than the IKA mixer.
- Example 1 the time required for decanting the emulsified mixtures in Example 1 was compared with a device according to the invention, that is to say the time necessary for the two phases to return to their initial state. This time depends on the stirring speed:
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003557704A JP2005514195A (ja) | 2002-01-11 | 2003-01-10 | 2つの混合不能な液体を乳状化するための攪拌器並びに攪拌方法 |
EP03712232A EP1467810A1 (fr) | 2002-01-11 | 2003-01-10 | DISPOSITIF ET PROCEDE D AGITATION EN PARTICULIER POUR u /u LA DISPERSION OU L EMULSIFICATION DE DEUX LIQUIDES NON MISC IBLES |
AU2003216713A AU2003216713A1 (en) | 2002-01-11 | 2003-01-10 | Shaking device and method, particularly for dispersing or emulsifying two immiscible fluids |
US10/501,220 US20050254342A1 (en) | 2002-01-11 | 2003-01-10 | Shaking device and method, particularly for dispersing or emulsifying two immiscible fluids |
CA002473098A CA2473098A1 (fr) | 2002-01-11 | 2003-01-10 | Dispositif et procede d'agitation en particulier pourla dispersion ou l'emulsification de deux liquides non miscibles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0200306A FR2834652B1 (fr) | 2002-01-11 | 2002-01-11 | Dispositif d'agitation en particulier pour la dispersion ou l'emulsification de deux liquides non miscibles |
FR02/00306 | 2002-01-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003057354A1 true WO2003057354A1 (fr) | 2003-07-17 |
WO2003057354A8 WO2003057354A8 (fr) | 2004-04-29 |
Family
ID=8871245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/000073 WO2003057354A1 (fr) | 2002-01-11 | 2003-01-10 | Dispositif et procede d'agitation en particulier pour la dispersion ou l'emulsification de deux liquides non miscibles |
Country Status (8)
Country | Link |
---|---|
US (1) | US20050254342A1 (fr) |
EP (1) | EP1467810A1 (fr) |
JP (1) | JP2005514195A (fr) |
CN (1) | CN1638854A (fr) |
AU (1) | AU2003216713A1 (fr) |
CA (1) | CA2473098A1 (fr) |
FR (1) | FR2834652B1 (fr) |
WO (1) | WO2003057354A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101574632B (zh) * | 2008-05-09 | 2011-07-13 | 北京化工大学 | 一种鱼肝油乳液的制备方法 |
WO2009154188A1 (fr) * | 2008-06-16 | 2009-12-23 | アイセル株式会社 | Élément de mélange, dispositif de mélange, lame d’agitation, machine à mélanger, système de mélange et dispositif de réaction |
JP5463475B2 (ja) * | 2009-02-27 | 2014-04-09 | アイセル株式会社 | 反応装置、反応方法及び触媒ユニット |
JP5500575B2 (ja) * | 2008-06-16 | 2014-05-21 | アイセル株式会社 | 混合要素、混合装置、混合方法、攪拌翼、攪拌装置及び攪拌方法 |
JP5263877B2 (ja) * | 2008-10-22 | 2013-08-14 | アイセル株式会社 | 混合装置及び混合システム |
CN102743996B (zh) * | 2012-07-06 | 2014-11-05 | 浙江长江搅拌设备有限公司 | 一种萃取混合搅拌机 |
CN107175008B (zh) * | 2017-07-04 | 2018-05-04 | 南通富海环保设备有限公司 | 一种污水处理装置 |
CN108671780B (zh) * | 2018-07-05 | 2023-11-17 | 杭州旺格机械设备有限公司 | 一种均匀出料的发泡机 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB237325A (en) * | 1924-04-03 | 1925-07-30 | Johan Ernst Nyrop | Method and apparatus for mixing, emulsifying, and/or atomising |
US2814527A (en) * | 1954-11-10 | 1957-11-26 | Foremost Dairies Inc | Centrifugal atomizer |
DE3704538A1 (de) * | 1987-02-13 | 1988-08-25 | Grieser Maschinenbau | Ruehrmischer |
US6241220B1 (en) * | 1997-01-10 | 2001-06-05 | Beamech Group Limited | Apparatus and process for producing polymeric foam |
US6280078B1 (en) * | 1997-08-20 | 2001-08-28 | Tva Technology Pty. Ltd. | Double sided Mixing and aerating apparatus |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
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US1189593A (en) * | 1913-10-03 | 1916-07-04 | John Lynn | Spraying or atomizing device. |
US1124855A (en) * | 1914-06-13 | 1915-01-12 | Metals Recovery Co | Ore-separatory apparatus. |
US1774910A (en) * | 1927-10-14 | 1930-09-02 | Standard Products Corp | Apparatus for the production of dispersions of solids in liquids |
US2448590A (en) * | 1946-10-18 | 1948-09-07 | Roland E Gunther | Apparatus for dispersing gases in liquids |
US3486741A (en) * | 1968-02-06 | 1969-12-30 | Ernst L Midgette | Impeller |
US3650513A (en) * | 1969-04-04 | 1972-03-21 | Frank D Werner | Aeration device |
US3861652A (en) * | 1972-11-15 | 1975-01-21 | Du Pont | Mixing device |
US4193950A (en) * | 1975-07-04 | 1980-03-18 | Linde Aktiengesellschaft | Apparatus for introducing gas into a liquid |
US3992491A (en) * | 1975-09-30 | 1976-11-16 | Fmc Corporation | Rotating gas diffuser |
DE2823801A1 (de) * | 1977-06-23 | 1979-01-18 | Makoto Naito | Vorrichtung zum verteilen von gas in form von feinen gasblaeschen in einer fluessigkeit |
DE2862420D1 (en) * | 1977-12-01 | 1984-07-26 | Ici Plc | Mass transfer apparatus and its use |
CA1101138A (fr) * | 1979-02-05 | 1981-05-12 | Claudio Guarnaschelli | Aerateur |
US4401278A (en) * | 1980-03-28 | 1983-08-30 | Hitachi Shipbuilding & Engineering Co., Ltd. | Apparatus for granulating coal |
JPS59127636A (ja) * | 1983-01-12 | 1984-07-23 | Hitachi Maxell Ltd | 混合装置 |
FR2620044B1 (fr) * | 1987-09-08 | 1989-12-22 | Pillon Francis | Procede et dispositif pour epandre ou melanger des pulverulents par depot de particules en suspension dans l'air |
DE9106768U1 (de) * | 1991-06-03 | 1991-07-25 | Stelzer Ruehrtechnik Gmbh, 3530 Warburg | Begasungsrührer |
US5785424A (en) * | 1993-04-30 | 1998-07-28 | Kansai Chemical Engineering Co. Ltd. | Agitator blade having agitators with open first and second ends and inner fabrics therein |
JP3129394B2 (ja) * | 1996-03-19 | 2001-01-29 | 関西化学機械製作株式会社 | 混合装置および混合法 |
JP3695033B2 (ja) * | 1997-01-20 | 2005-09-14 | 味の素株式会社 | 撹拌翼 |
DE19823839A1 (de) * | 1998-05-29 | 1999-12-09 | Franz Durst | Verfahren und Vorrichtung zum Mischen und Dispergieren mindestens zweier Phasen |
US20010022755A1 (en) * | 1999-12-20 | 2001-09-20 | Holtzapple Mark T. | Mixer system and method |
-
2002
- 2002-01-11 FR FR0200306A patent/FR2834652B1/fr not_active Expired - Fee Related
-
2003
- 2003-01-10 AU AU2003216713A patent/AU2003216713A1/en not_active Abandoned
- 2003-01-10 CN CNA038056887A patent/CN1638854A/zh active Pending
- 2003-01-10 WO PCT/FR2003/000073 patent/WO2003057354A1/fr not_active Application Discontinuation
- 2003-01-10 EP EP03712232A patent/EP1467810A1/fr not_active Withdrawn
- 2003-01-10 JP JP2003557704A patent/JP2005514195A/ja active Pending
- 2003-01-10 CA CA002473098A patent/CA2473098A1/fr not_active Abandoned
- 2003-01-10 US US10/501,220 patent/US20050254342A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB237325A (en) * | 1924-04-03 | 1925-07-30 | Johan Ernst Nyrop | Method and apparatus for mixing, emulsifying, and/or atomising |
US2814527A (en) * | 1954-11-10 | 1957-11-26 | Foremost Dairies Inc | Centrifugal atomizer |
DE3704538A1 (de) * | 1987-02-13 | 1988-08-25 | Grieser Maschinenbau | Ruehrmischer |
US6241220B1 (en) * | 1997-01-10 | 2001-06-05 | Beamech Group Limited | Apparatus and process for producing polymeric foam |
US6280078B1 (en) * | 1997-08-20 | 2001-08-28 | Tva Technology Pty. Ltd. | Double sided Mixing and aerating apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2005514195A (ja) | 2005-05-19 |
FR2834652B1 (fr) | 2004-02-27 |
WO2003057354A8 (fr) | 2004-04-29 |
US20050254342A1 (en) | 2005-11-17 |
EP1467810A1 (fr) | 2004-10-20 |
FR2834652A1 (fr) | 2003-07-18 |
AU2003216713A1 (en) | 2003-07-24 |
CA2473098A1 (fr) | 2003-07-17 |
CN1638854A (zh) | 2005-07-13 |
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