EP1551540A1 - Procede et dispositif de fabrication d'une dispersion ou d'une emulsion - Google Patents
Procede et dispositif de fabrication d'une dispersion ou d'une emulsionInfo
- Publication number
- EP1551540A1 EP1551540A1 EP03778394A EP03778394A EP1551540A1 EP 1551540 A1 EP1551540 A1 EP 1551540A1 EP 03778394 A EP03778394 A EP 03778394A EP 03778394 A EP03778394 A EP 03778394A EP 1551540 A1 EP1551540 A1 EP 1551540A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- porous
- coφs
- emulsion
- fluid
- porous body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000839 emulsion Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000006185 dispersion Substances 0.000 title claims description 27
- 230000008569 process Effects 0.000 claims abstract description 17
- 230000005284 excitation Effects 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 12
- 238000013019 agitation Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000002537 cosmetic Substances 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 239000000825 pharmaceutical preparation Substances 0.000 claims description 3
- 229940127557 pharmaceutical product Drugs 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 230000009471 action Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 11
- 239000002270 dispersing agent Substances 0.000 description 10
- 239000011148 porous material Substances 0.000 description 7
- 206010001497 Agitation Diseases 0.000 description 6
- 238000004581 coalescence Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000002604 ultrasonography Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920001213 Polysorbate 20 Polymers 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 2
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
- B01F25/31421—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction the conduit being porous
-
- 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
- B01F23/411—Emulsifying using electrical or magnetic fields, heat or vibrations
- B01F23/4111—Emulsifying using electrical or magnetic fields, heat or vibrations using vibrations
-
- 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
- B01F23/49—Mixing systems, i.e. flow charts or diagrams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
- B01F31/84—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations for material continuously moving through a tube, e.g. by deforming the tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
-
- 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
- Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
- Y10S516/924—Significant dispersive or manipulative operation or step in making or stabilizing colloid system
- Y10S516/928—Mixing combined with non-mixing operation or step, successively or simultaneously, e.g. heating, cooling, ph change, ageing, milling
Definitions
- the present invention relates to a device and a method for manufacturing a dispersion or an emulsion of at least two fluids deemed immiscible.
- the manufacture of a dispersion or emulsion is the mixture of two immiscible fluids in which one of these fluids (called “dispersed phase”) is dispersed in the form of droplets in the other fluid (called “dispersing phase”). ").
- the size of the droplets depends on many properties, and in general, the smaller and more homogeneous the size, the more interesting the dispersion: the smaller the droplets, the more stable the dispersion; in the classical case where the dispersed phase is the vector of an active ingredient, the smaller the drops, the better the diffusion of the active ingredient.
- a ring In the rotor-stator systems, a ring is rotated relative to another and the fluid to be treated is passed between the surfaces facing each other of these two rings. Thus the difference in speed between the crowns creates a shear that is optimized by decreasing the distance between the two crowns.
- rotor-stator devices There are many geometries of rotor-stator devices, some systems include several rows of crowns. These systems widespread in the industry are particularly suitable for dispersions of high viscosity. Pressure vessels, homogenizers, devices known as Microfluidizer (registered trademark) and other jet devices are the subject of the most recent developments.
- the principle is the pressurization (up to 200 MPa) of a fluid, which is generally a pre-dispersion followed by a sudden expansion in a suitable head, thus bringing the fluid a significant mechanical energy.
- the homogenizers have a head formed of an opening, a valve and impact plates.
- the principle of the Microfluidizer (registered trademark) is to separate the main flow and then to create a secondary flow collision.
- Devices based on these principles are confronted with equipment resistance limits (high wear, risk of rupture of a material under heavy stress).
- the very principle of relaxation causes a heating of the fluid which can be detrimental to the final product.
- Ultrasound is also a means of exerting a mechanical action at the interface of the two phases.
- ultrasound generators the first called transducers convert an oscillating electrical signal into ultrasonic vibration; the second called whistles transform the energy of a fluid jet into ultrasonic vibrations, on the principle of a vibrating blade or a resonant cavity.
- Another emulsion manufacturing system is the membrane emulsification: the dispersed phase which forms drops on the surface of this body is pushed through a porous body, the dispersant phase flow on the surface of the porous body allows the training of the drops.
- the energy transmitted to the interface is limited by the losses due to friction in the dispersant phase; as a result the entrained drops are of larger size (approximately 4-5 times the pore size) and a phenomenon of coalescence on the surface of the porous body occurs increasing the size of the drops and the inhomogeneity of the droplet populations.
- the phenomenon of coalescence occurs when at least two drops formed on neighboring pores combine to form one.
- a solution to this last disturbing phenomenon is envisaged in the JP2-214537 patent. It consists of the addition of an ultrasonic irradiation of the porous body.
- the wave generated by a standard washing system is transmitted in a fluid way.
- More volumes in which mechanical energy is supplied are greater than 10 "10 m 3 for actions on useful volumes (particle size in dispersion, cells ...) typically of the order of 10" m.
- the devices used can not ensure the homogeneity of the mechanical action, its effects and therefore the product obtained.
- the purpose of the invention is to propose a process for manufacturing a dispersion or an emulsion of at least two fluids that are considered immiscible, which avoids the aforementioned drawbacks and allows the manufacture of a homogeneous emulsion or dispersion. with fine drops.
- the object of the invention is also to propose a device implementing this method, by exerting a mechanical action directly at the interface of the two phases, which makes it possible to obtain finer and more homogeneous dispersions with better energy efficiency.
- the subject of the invention is a process for producing a dispersion or an emulsion from at least two known immiscible fluids constituting a dispersed phase and a dispersant phase, the dispersed phase being pushed through a porous body in the dispersing phase, characterized in that said porous body is vibrated by an excitation of mechanical, electrical or magnetic nature.
- the dispersant phase flows to the exit surface of the porous body.
- the emulsion is re-circulated in the porous body which is charged in dispersed phase during the process.
- the frequencies and / or the power of the vibrations are controlled.
- an emulsifier is added in at least one of the two phases.
- the dispersed phase is pushed through the porous body under conditions of controlled temperature, pressure, flow, composition, and agitation.
- the dispersant phase circulates on the surface of the porous body under conditions of controlled temperature, pressure, flow, composition and agitation.
- the process consists in using said dispersion or emulsion to produce cosmetic, dermopharmaceutical or pharmaceutical products.
- the invention also relates to a device for the manufacture of a dispersion or an emulsion from at least one fluid comprising at least: a porous body having a porous portion through which is able to be pushed said fluid, said porous body having a so-called internal cavity, a casing sealingly surrounding at least said porous portion so as to define a so-called external cavity in which said porous part opens, said fluid being able to be brought into said external cavity, characterized in that it comprises a system for vibrating the porous body
- "directly" is used in the sense or, contrary to the prior art, the vibrations are not essentially transmitted via one of the fluids.
- the device can be applied to the manufacture of an emulsion or a dispersion from two fluids deemed immiscible or homogenization of an emulsion or dispersion from the same fluid.
- the device comprises a supply system for said fluid capable of supplying said fluid in the external cavity under conditions of controlled temperature, pressure, flow, composition and agitation.
- the device comprises a supply system for another fluid capable of supplying this other fluid in said internal cavity under conditions of controlled temperature, pressure, flow, composition and agitation.
- the device comprises a withdrawal system for evacuation, and storage or transmission of the emulsion or dispersion to another system or the recirculation of the emulsion or dispersion.
- the system for vibrating the porous body consists of a winding connected to a source of alternating current surrounding the envelope permeable to the magnetic waves generated by the winding, the porous body being made of magnetostrictive material.
- the system for vibrating the porous body consists of a conductive rod disposed coaxially with the porous body, a conductive envelope, said conductive rod and said envelope being connected to an alternating current source, the porous body being made of a piezoelectric material.
- the conductive rod and / or the surface of the porous body are covered with an insulator.
- the system for vibrating the porous body consists of two transducers attached to the ends of the porous body and connected to an AC source, said transducers being made of a piezoelectric material.
- each transducer comprises a support means attached to the casing having a recess in which is positioned an end of the porous body, said support means comprising at least one pair of radial holes, each pair containing a piezoelectric element in a hole and elastic biasing means in the other hole of the same pair for holding the piezoelectric element in abutment against the porous body, the holes of the same pair being diametrically opposed.
- the support means comprises two pairs of holes, the two pairs of holes being arranged in perpendicular directions, and the two piezoelectric elements are powered by signals shifted by a quarter of a period relative to one another. and other, and in combination with the prestressing springs, cause a displacement of the porous body in a generally circular path.
- FIG. 1 represents a longitudinal section of a module containing the porous body and a magnetic excitation means, and a section along the axis A-A of this module
- Figure 2 is a longitudinal section of a module containing the porous body and an electrical excitation means, and a section along the axis A-A of this module
- - Figure 3 is a longitudinal section of a module containing the porous body and a mechanical excitation means, and a section along the axis A-A of this module
- Figure 4 is a schematic representation of an implementation of the invention
- - Figure 5 is a schematic representation of an implementation of the invention with re-circulation of the emulsion or dispersion
- Figure 6 is a detailed schematic representation of the device shown in Figure 5;
- FIG. 1 represents a longitudinal section of a module containing the porous body and a magnetic excitation means, and a section along the axis A-A of this module
- Figure 2 is a longitudinal section of a module containing the porous body
- FIG. 7 is a longitudinal section of a module containing the porous body and a mechanical excitation means according to a second embodiment
- Figure 8 is a perspective view of a coupling sleeve
- - Figure 9 is a section along the axis IX of Figure 7 of a module containing the porous body and a mechanical excitation means
- Fig. 10 is a diagram showing the results of the application example. - DESCRIPTION -
- the device is in the form of active module 2, 102 and 202.
- this module 2 is composed of a porous body 24, a coil 27 and a casing 23.
- the porous body 24 is in the form of a hollow cylinder whose central porous portion 42 is included in FIGS. the envelope 23 of form cylindrical coaxial with porous co ⁇ s 24. The space between the porous co ⁇ s 24 and the envelope 23 defines an external cavity 21.
- the casing 23 is connected to the ends 43 of the porous co ⁇ s 24 by a sealing system 25 and 25 '.
- An internal cavity 22 is also defined inside the porous body 24.
- the coil 27 connected to a source of alternating current 4 of adjustable power and frequency produces an oscillating magnetic field.
- the porous co ⁇ s 24 is made in a magnetostrictive material and the envelope 23 in a material permeable to the magnetic waves produced by the coil 27.
- the dispersed phase 40 is fed through the orifice 26 into the external cavity 21, then it is pushed through the porous portion 42 to the internal cavity 22, at the so-called outlet surface where it will be placed in contact. with the dispersing phase 44 flowing from the left end 43 of the porous co ⁇ s to that of the right. Contacting the dispersed phase 40 in the form of droplets after passing through the porous part 42 and the dispersing phase 44 is at the base of the emulsion or dispersion 41.
- the envelope 23 serves to comprise the dispersed phase 40 which will be pushed through the porous co ⁇ s 24 and allow the vibrations of the porous co ⁇ s 24 without degradation thereof.
- the sealing system 25 and 25 ' may advantageously be composed of two flexible joints ensuring both the sealing and the mobility of the porous body with respect to the envelope 23.
- the embodiment shown in FIG. of vibrating 51 by magnetic excitation that is to say that the system 51 is composed of the alternating current source 4 connected to the coil 27 whose geometry makes it possible to exert on the porous co ⁇ s 24 an alternating magnetic field.
- the porous body 24 thus subjected to an oscillating magnetic field vibrates and exerts on the interface of the two phases 40 and 44, the desired mechanical action.
- the embodiment shown in FIG. 2 illustrates a vibrating system 151 by electrical excitation.
- the identical elements will bear the same references and will not be described again.
- the active module 102 differs from that shown in FIG. 1 only by the vibrating system.
- the vibrating system 151 then comprises an alternating current source 4 connected to conductive surfaces between which the porous co ⁇ s 24 is placed.
- the conductive surfaces consist of the conductive layer 46 of the envelope 23 and a conducting rod 28 placed coaxially with the cylinder formed by the porous co ⁇ s 24.
- Each of the conductive surfaces 46 and 28 is connected to a terminal of an alternating current source 4 of adjustable power and frequency creating an oscillating electric field.
- the conducting rod 28 is made of a conductive material advantageously covered with an insulating layer 45, just as the envelope 23 comprises at least one conductive layer 46 advantageously covered with an insulator 47 (represented by the thick black line defining the outline of the external cavity 21).
- FIG. 3 illustrates a mechanical excitation vibration system 251.
- the active module 202 differs from that shown in Figures 1 and 2 only by the vibrating system.
- the vibrating system 251 then comprises an alternating current source 4 and 4 'connected to one or more coupled mechanical vibrators (mechanical connection) with the porous co ⁇ s 24, which may advantageously be fixed collar-shaped transducers 29 and 29' at the ends 43 of the porous co ⁇ s 24. These transducers 29 and 29 'directly transmit the vibrations to the porous co ⁇ s 24.
- the system formed by the transducers 29 and 29 'and the porous co ⁇ s 24 forms an oscillator thus exerting the desired mechanical action at the dispersed phase 40 and dispersant 44 interface.
- the transducers 290 and 290 ' are placed at each end 43 of the porous co ⁇ s 24 fixedly against the casing 23 and the sealing system 25 and 25'.
- the transducers 290 and 290 ' are formed of a support means 291 and 291' for example in the form of an octagonal collar having a recess 52 coaxial with the X axis and according to Figure 9, two radial tapped holes 293a and 293b.
- the end 43 of the porous co ⁇ s 24 is nested in a connecting sleeve 292 or 292 'itself placed in the coaxial recess 52.
- This coupling sleeve 292 according to FIG.
- each hole 293a and 293b is placed a piezoelectric element 294 and a prestressing spring 295 on either side of the connecting sleeve 292.
- Four adjustment screws 296a, 296b, 296c and 296d close off the ends of each hole 293a and 293b.
- the prestressing springs 295 are prestressed in compression by means of the four screws 296a, 296b, 296c and 296d mentioned above.
- the piezoelectric elements 294 are powered by two periodic electric signals in quadrature with respect to each other (ie: shift of a quarter period) and undergo an elongation proportional to the supply voltage.
- the input signal is rarely pure, it is up to say that it further comprises the main signal at a given frequency, other signals secondary to other frequencies, the movements then described by the transverse sections of the porous co ⁇ s 24 are composed of a sum of circular trajectories (corresponding each at a frequency of the input signal), guaranteeing on a section a global circular trajectory.
- the two input signals on the two piezoelectric elements are identical to the nearest quarter of a period, to ensure that each point of the porous body 24 at a given cross-section undergoes the same vibrations and thus guarantee homogeneity of mechanical action.
- the transducers 290 and 290 ' are powered by separate frequency signals each corresponding to a specific mode of the system. This allows an optimization and a good control of the generation of the vibrations, while avoiding the nodes of vibration where the mechanical action would be absent.
- the device comprises an active module 2 connected by the pipe 5 to the supply system 1 in dispersed phase 40, via the pipe 7 to the supply system 8 in the dispersing phase 44 and through the pipe 6 to the withdrawal system 3.
- the active module 2 is also connected to an alternating current source 4.
- the AC source 4 supplies the active module 2 with the energy necessary to generate the mechanical action necessary for the generation of fine droplets.
- the withdrawal system 3 connected to the active module 2 via the pipe 6 allows the evacuation of the emulsion or dispersion 41 of the porous co ⁇ s 24.
- a variant of this implementation, shown in FIG. 5, comprises the same elements as in the previous embodiment, except that a pipe 17 connects the withdrawal system 3 to the module 2.
- the withdrawal system 3 then allows the return of the emulsion or dispersion 41, thus creating a recirculation.
- the draw-off system 3 is composed of at least one tank 30 and a pump 33 located between this tank 30 and the pipe 17.
- the tank 30 is provided with a stirring system 31 and a system for maintaining the temperature 50 composed of a thermostated bath 35 and an exchange coil 34.
- the disperse phase feed system 40 comprises a feed 48 of pressurized gas composed of a reservoir 13 (pressurized bottle, or compressor coupled to an expansion vessel) and a pressure reducer 14.
- the system 1 comprises also a disperse phase reservoir 40, pressurizable, provided with a stirring system 11, and mounted on a scale or balance 15.
- the system 1 finally comprises a shutoff valve 12.
- the pressure regulator 14 can set the pressure to which is pushed the dispersed phase 40 at the level of the feed system 1.
- the active module used corresponds to that shown in FIG. 3 with an embodiment identical to that of FIG. 6.
- the active module can advantageously be a single-channel tangential filtration module adapted to the application, using porous co ⁇ s made of hydrophilic ceramic. with a pore diameter of 0.1 ⁇ m and 0.8 ⁇ m.
- a hollow cylindrical porous co ⁇ s of length between 20 and 30 mm and outer radius between 10 and 15 mm and inner radius between 7 and 12 mm will be used.
- the exemplary embodiment relates to the manufacture of an emulsion 41 of the oil-in-water type, composed for example of 10% of soybean oil, 0.5% of Tween 20 (registered trademark) and 89.5 emulsifier. % of water. A mixture of 4.8% Tween 20 and 95.2% oil is made in the tank 10 with stirring. Then a quantity of water X is circulated from the tank 30. Once the valve 12 is closed, the expander 14 is set to a pressure between 0.1 and 5 bar.
- the transducers 29 and 29 ' are independently powered with the AC source 4 (composed of two separate sources) with power signals between 0 W and 2 kW and two frequencies one of which is between 14 and 16 kHz and the second between 18 and 22 kHz. Then the valve 12 is opened and closed when the amount of oil + emulsifier mixture reaches 0,1173X. During the entire operation, the temperature is maintained around a set temperature of between 15 and 25 ° C.
- FIG. 10 diagram presenting the percentage by volume of the droplet populations according to their size. (in logarithmic scale).
- the population distribution is represented by a broken line for the vibration-free test and a continuous line for the vibration test. In each case, we can observe the presence of several droplet populations, identified by several peaks. The presence of these same populations of drops has been confirmed by images taken with an electron microscope (images not shown).
- an emulsion 41 whose drop size is less than 300 nm is obtained (results not shown). It may be advantageous to apply this example in particular to the manufacture of cosmetic, dermo-pharmaceutical or pharmaceutical products.
- the vibrations of the exit surface of the porous co ⁇ s 24 act in this invention, releasing a mechanical energy of rupture directly at the dispersed and dispersive phase interface 44, making it possible to avoid the formation of large drops and generating the formation of fines. drops of dispersed phase 40 in the dispersing phase 44 at the base of the emulsion 41.
- the system thus makes it possible to transmit at the interface of the two phases 40 and 44 a large amount of energy; the transmission being done by a solid (the porous co ⁇ s 24) and not by the fluids. It seems that under these conditions the phenomena of coalescence are inhibited, and the mechanism of formation and tearing drops accelerated. This hypothesis must, however, in no way be considered as limiting the invention.
- the choice of the vibrating mode imposes magnetostrictive, piezoelectric or electrostrictive properties at the porous co ⁇ s. Other properties, geometric, mechanical, physico-chemical, chemical are determined by the application.
- the general shape of the porous co ⁇ s 24 must optimize the surface through which the dispersed phase 40 passes while facilitating the transmission or generation of vibrations.
- the hollow cylinder (we then take the principle of tangential filtration membrane assembly), is the one that has been presented previously.
- a solid cylinder placed in a pipe may also be mentioned, the dispersed phase flowing in accordance with the axis of the cylinder, or a plug fixed in a pipe, and whose outlet surface is flush with the inner surface of a stirred tank.
- the porosity, the pore size and the thickness of the porous co ⁇ s 24 determine the effective volume, and the duration of the mechanical action.
- the mechanical resistance and the elasticity play on the amplitude of the vibrations and thus the intensity of the mechanical action.
- the hydrophilic / hydrophobic character can substantially modify the fluid paths through the co ⁇ s but also the porous co ⁇ s interface 24 // dispersed phase 40 // dispersant phase 44 (contact angle).
- a co ⁇ s 24 having a good affinity with the dispersing phase 44 is thus advantageously chosen in order to favor the separation of the drops of disperse phase 40. It is also necessary that the chosen materials be compatible with the products used. By using a co ⁇ s not permeable to microwaves it is impossible to heat this co ⁇ s and add to the mechanical effect a thermal effect.
- the porous co ⁇ s 24 is not necessarily homogeneous.
- a part of the co ⁇ s 24 located at its ends 43 may be non-porous.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Colloid Chemistry (AREA)
- Medicinal Preparation (AREA)
- Accessories For Mixers (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0212803 | 2002-10-15 | ||
| FR0212803A FR2845619B1 (fr) | 2002-10-15 | 2002-10-15 | Dispositif et procede de fabrication d'un melange, d'une dispersion ou emulsion d'au moins deux fluides reputes non miscibles |
| PCT/FR2003/003035 WO2004035190A1 (fr) | 2002-10-15 | 2003-10-15 | Procede et dispositif de fabrication d’une dispersion ou d’une emulsion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1551540A1 true EP1551540A1 (fr) | 2005-07-13 |
| EP1551540B1 EP1551540B1 (fr) | 2006-04-26 |
Family
ID=32039744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03778394A Expired - Lifetime EP1551540B1 (fr) | 2002-10-15 | 2003-10-15 | Procede et dispositif de fabrication d'une dispersion ou d'une emulsion |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7622510B2 (fr) |
| EP (1) | EP1551540B1 (fr) |
| CN (1) | CN1711129B (fr) |
| AT (1) | ATE324174T1 (fr) |
| AU (1) | AU2003285402B2 (fr) |
| BR (1) | BR0315292B1 (fr) |
| CA (1) | CA2501727C (fr) |
| DE (1) | DE60304883T2 (fr) |
| ES (1) | ES2264016T3 (fr) |
| FR (1) | FR2845619B1 (fr) |
| WO (1) | WO2004035190A1 (fr) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005051511A1 (fr) * | 2003-11-28 | 2005-06-09 | Mitsubishi Chemical Corporation | Methode de production de particules fines d'un compose organique |
| CH697378B1 (de) * | 2005-02-11 | 2008-09-15 | Claudia Marcoli | Vorrichtung zur Oberflächenbehandlung von Teilen mittels Nanoemulsionen sowie Verfahren zur Erzeugung und zur Anwendung von Nanoemulsionen. |
| US20080049545A1 (en) * | 2006-08-22 | 2008-02-28 | United Technologies Corporation | Acoustic acceleration of fluid mixing in porous materials |
| GB2444035A (en) * | 2006-11-25 | 2008-05-28 | Micropore Technologies Ltd | An apparatus and method for generating emulsions |
| BR112012015200B1 (pt) * | 2009-12-22 | 2021-07-20 | Evonik Corporation | Processo para preparar micropartículas, e, conjunto de cabeça de trabalho para um misturador através de fluxo não estático |
| EP2374535A1 (fr) * | 2010-04-06 | 2011-10-12 | Bühler AG | Procédé et dispositifs de formation de vésicule, notamment en utilisant des copolymères en bloc |
| RU2427362C1 (ru) * | 2010-09-08 | 2011-08-27 | Андрей Александрович Геталов | Способ получения эмульсионного косметического средства |
| EP2596781A4 (fr) * | 2011-03-16 | 2014-10-22 | Cavitanica Ltd | Procédé simultané de développement et de production de volumes d'un agent cosmétique en émulsion |
| GB2494926B (en) * | 2011-09-26 | 2018-07-11 | Micropore Tech Ltd | Apparatus for particle production |
| WO2013147636A1 (fr) * | 2012-03-26 | 2013-10-03 | Getalov Andrey Aleksandrovich | Procédé de traitement par cavitation simultané de milieux liquides de compositions différentes |
| RU2486950C1 (ru) * | 2012-03-27 | 2013-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пензенская государственная технологическая академия" | Способ получения растворов в цилиндрической вертикальной емкости, нагреваемой в основном со стороны днища, например, для работы шлихтовальной машины ткацкого производства |
| RU2501598C1 (ru) * | 2012-05-21 | 2013-12-20 | Андрей Александрович Геталов | Способ одновременной ультразвуковой кавитационной обработки объемов жидких сред |
| ITRM20120378A1 (it) * | 2012-08-02 | 2014-02-03 | Consiglio Nazionale Ricerche | Metodo e apparecchiatura di emulsificazione a membrana a singolo passaggio pulsato. |
| US9393532B2 (en) | 2013-02-27 | 2016-07-19 | Dow Global Technologies Llc | Swept membrane emulsification |
| JP6110563B2 (ja) * | 2014-04-11 | 2017-04-12 | コリア リサーチ インスティトゥート オブ スタンダーズ アンド サイエンス | 超音波集束流体分散混合装置及び方法と超音波集束流体の分散混合のための流体供給装置 |
| RU2611522C1 (ru) * | 2015-11-02 | 2017-02-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пензенский государственный технологический университет" | Способ получения горячих растворов в вертикальной ёмкости прямоугольного поперечного сечения, высота которой больше поперечных размеров |
| JP7187240B2 (ja) * | 2018-10-04 | 2022-12-12 | キヤノン株式会社 | 液滴生成装置、液滴生成方法及びプログラム |
| JP7271385B2 (ja) * | 2019-09-30 | 2023-05-11 | 日本ゼオン株式会社 | O/wエマルションの製造方法、及び微粒子の製造方法 |
| CN110756098B (zh) * | 2019-11-04 | 2021-11-02 | 安徽医学高等专科学校 | 一种混合药剂瓶 |
| CN113101847B (zh) * | 2021-05-10 | 2022-02-15 | 浙江师范大学 | 一种双振子驱动的主-被动式压电微混合器 |
| ES3063408T3 (en) * | 2023-08-10 | 2026-04-16 | Fust Lab Co Ltd | Nanodispersion apparatus and nanodispersion method thereof |
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| FR953482A (fr) * | 1947-09-25 | 1949-12-07 | Dispositif à ressort pour pulvérisation et mélange de fluides | |
| US2949900A (en) * | 1958-06-02 | 1960-08-23 | Albert G Bodine | Sonic liquid sprayer |
| US3812854A (en) * | 1972-10-20 | 1974-05-28 | A Michaels | Ultrasonic nebulizer |
| US4201691A (en) * | 1978-01-16 | 1980-05-06 | Exxon Research & Engineering Co. | Liquid membrane generator |
| US4253962A (en) * | 1979-12-12 | 1981-03-03 | Thompson John R | Non-destructive vibratory cleaning system for reverse osmosis and ultra filtration membranes |
| GB8514899D0 (en) * | 1985-06-12 | 1985-07-17 | Health Lab Service Board | Filters |
| JP2847107B2 (ja) * | 1989-02-16 | 1999-01-13 | 富士シリシア化学株式会社 | エマルジョンの調製方法 |
| WO1993000156A1 (fr) * | 1991-06-29 | 1993-01-07 | Miyazaki-Ken | Emulsions monodispersees simples et doubles et procede de production |
| JP3123153B2 (ja) * | 1991-11-11 | 2001-01-09 | ミノルタ株式会社 | 静電荷像現像用トナーおよびその製造方法 |
| DE4300880C2 (de) * | 1993-01-15 | 1996-03-21 | Draegerwerk Ag | Ultraschallvernebler mit Dosiereinheit |
| JP3408609B2 (ja) * | 1994-02-22 | 2003-05-19 | 冷化工業株式会社 | エマルションの製造方法および装置 |
| US6380264B1 (en) * | 1994-06-23 | 2002-04-30 | Kimberly-Clark Corporation | Apparatus and method for emulsifying a pressurized multi-component liquid |
| JP3012608B1 (ja) * | 1998-09-17 | 2000-02-28 | 農林水産省食品総合研究所長 | マイクロチャネル装置及び同装置を用いたエマルションの製造方法 |
| WO2004030799A1 (fr) * | 2002-10-02 | 2004-04-15 | Unilever N.V. | Procede permettant de reguler la taille des gouttelette d'une emulsion lors du melange de deux fluides non miscibles |
| US20040152788A1 (en) * | 2003-01-31 | 2004-08-05 | Wu Huey Shen | Uniform emulsion by membrane emulsification |
| JP4505560B2 (ja) * | 2003-12-15 | 2010-07-21 | 宮崎県 | 単分散気泡の生成方法 |
| WO2005070527A2 (fr) * | 2004-01-22 | 2005-08-04 | Scf Technologies A/S | Procede et appareil de fabrication de micro emulsions |
-
2002
- 2002-10-15 FR FR0212803A patent/FR2845619B1/fr not_active Expired - Fee Related
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2003
- 2003-10-15 ES ES03778394T patent/ES2264016T3/es not_active Expired - Lifetime
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- 2003-10-15 DE DE60304883T patent/DE60304883T2/de not_active Expired - Lifetime
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- 2003-10-15 BR BRPI0315292-8A patent/BR0315292B1/pt not_active IP Right Cessation
- 2003-10-15 CN CN2003801032692A patent/CN1711129B/zh not_active Expired - Fee Related
- 2003-10-15 US US10/531,227 patent/US7622510B2/en not_active Expired - Fee Related
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Non-Patent Citations (1)
| Title |
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| See references of WO2004035190A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2501727C (fr) | 2011-05-24 |
| DE60304883D1 (de) | 2006-06-01 |
| WO2004035190A1 (fr) | 2004-04-29 |
| ES2264016T3 (es) | 2006-12-16 |
| US20060164912A1 (en) | 2006-07-27 |
| BR0315292B1 (pt) | 2011-07-12 |
| AU2003285402B2 (en) | 2008-12-04 |
| AU2003285402A1 (en) | 2004-05-04 |
| FR2845619B1 (fr) | 2005-01-21 |
| ATE324174T1 (de) | 2006-05-15 |
| CN1711129A (zh) | 2005-12-21 |
| BR0315292A (pt) | 2005-08-30 |
| DE60304883T2 (de) | 2007-05-03 |
| CA2501727A1 (fr) | 2004-04-29 |
| FR2845619A1 (fr) | 2004-04-16 |
| EP1551540B1 (fr) | 2006-04-26 |
| CN1711129B (zh) | 2010-05-26 |
| US7622510B2 (en) | 2009-11-24 |
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