JP2002102667A - Method and apparatus for continuous production of aqueous emulsion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method which can produce an aqueous emulsion having small particle sizes and excellent stability continuously and promptly and an apparatus for the method. SOLUTION: In the apparatus, a rotary disk is installed in a mixing chamber in a casing, scrapers are fitted to the upper and lower surfaces of the disk, a ring plate is extended non-contactwise between the notches of the lower surface scraper from the inner wall of the mixing chamber, the mixing chamber is divided into an upper part mixing chamber, a middle part mixing chamber, and a lower part mixing chamber by the disk and the ring plate, an upper part supply port for supplying a liquid material, water, and an emulsifier to the upper part mixing chamber is formed in the upper part of the casing, and a lower part supply port for supplying water or an emulsifier aqueous solution to the lower part mixing chamber and a discharge opening for discharging the emulsion from the lower part mixing chamber outside are opened in the side wall of the casing. The apparatus is used in the method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a continuous emulsification apparatus and a method for continuously producing an aqueous emulsion. More specifically, an apparatus for continuously supplying a liquid material (for example, silicone oil), water and an emulsifier into a casing, mixing the liquid material by rotation of a rotating disk with a scraper, and continuously emulsifying the liquid material, and an apparatus therefor. The present invention relates to a method for continuously producing an aqueous emulsion using an apparatus.

[0002]

2. Description of the Related Art Japanese Patent Publication No. 59-51565 discloses that a silicone oil, an emulsifier, and water are continuously supplied into a cylindrical container provided with a shearing and stirring mechanism, and the inside of the container is set to 0.049.
While maintaining a pressurized state of not less than MPa, the shear rate is
A method for continuously producing a grease-like aqueous silicone liquid having a viscosity of 100,000 centipoise or more by performing shear stirring at a rate of not less than / sec. However, there is a disadvantage that heat is easily generated because shearing is applied in a pressurized state. Another drawback is that in order to obtain a normal concentration aqueous emulsion, it must be diluted with water in a separate stirring device. In addition, since it is grease-like, there is a problem that it takes a long time to obtain a uniform aqueous emulsion when a normal stirring device is used. JP-A-2000-
No. 449 discloses a method of producing a grease-like aqueous solution of an organopolysiloxane by supplying a liquid organopolysiloxane, an emulsifier, and water into a casing and rotating a rotating disk equipped with a scraper. However, there is the disadvantage that the usual concentration of the aqueous emulsion must be diluted with water in a separate stirring device. In addition, since it is grease-like, there is a problem that it takes a long time to obtain a uniform aqueous emulsion when a normal stirring device is used. If the silicone oil is emulsified in a diluted state by increasing the amount of water charged from the beginning, there is a problem that the particle size of the emulsion increases and the emulsion becomes unstable.

[0003]

The inventors of the present invention have conducted intensive studies to develop a continuous emulsifying apparatus and a continuous production method of an aqueous emulsion which have no such disadvantages and problems, and as a result, have completed the present invention. Was. An object of the present invention is to provide a continuous emulsification apparatus capable of rapidly producing an aqueous emulsion having a small particle size and excellent stability, and a method for rapidly producing an aqueous emulsion having a small particle size and excellent stability. Is to do.

[0004]

According to the present invention, a rotating disk is provided in a mixing chamber in a casing, and a scraper is attached to an upper surface and a lower surface of the rotating disk. And the mixing chamber is divided into an upper mixing chamber, a middle mixing chamber, and a lower mixing chamber by the rotating disk and the ring plate. There is an upper supply port for supplying the liquid material, water and emulsifier to the upper mixing chamber, a lower supply port for supplying water or an aqueous emulsifier solution to the lower mixing chamber on the side wall of the casing, and an aqueous supply from the lower mixing chamber. A continuous emulsifier (A) characterized in that a discharge port for discharging the emulsion to the outside is open; a rotating disk is installed in a mixing chamber in a casing, and an upper surface and a lower surface of the rotating disk Scraper is attached, and an upper ring plate and lower ring plate from the mixing chamber wall extends in a non-contact state between the notches of the lower surface scraper,
The mixing chamber is divided into an upper mixing chamber, a middle and upper mixing chamber, a middle and lower mixing chamber and a lower mixing chamber by the rotating disk, the upper ring plate and the lower ring plate. There is an upper supply port for supplying liquid material, water and emulsifier, a lower supply port for supplying water or an emulsifier aqueous solution to the lower mixing chamber on the side wall of the casing, and an aqueous emulsion from the lower mixing chamber to the outside. A continuous emulsifier (B) characterized in that an outlet for discharging is open; and a liquid material, water and an emulsifier from an upper supply port while rotating the rotating disks of the two types of continuous emulsifiers. Continuously supplied to the upper mixing chamber, water or an emulsifier aqueous solution is continuously supplied to the lower mixing chamber from the lower supply port, and the aqueous emulsion is continuously discharged to the outside from the discharge port. That relates to a continuous process for the production of an aqueous emulsion.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the above continuous emulsifying apparatus (A), the liquid material, water and emulsifier continuously supplied to the upper mixing chamber move radially outward on a rotating rotating disk and move to the upper mixing chamber. Impacts on the ceiling and the inner wall of the upper mixing chamber. The material adhering to the ceiling of the upper mixing chamber is scraped by the upper scraper and subjected to a shearing action. The scraped material falls on the rotating disk and moves radially outward on the rotating disk again. The material adhering to the inner wall of the upper mixing chamber is scraped off by the side scraper if there is a side scraper, and is subjected to a shearing action. Thus, a coarse grease-like material is obtained by the first kneading action. The coarse grease moves to the middle mixing chamber through a gap between the peripheral end of the rotating disk and the inner wall of the mixing chamber, and is subjected to a shearing action between the notch of the ring plate and the lower surface scraper. In this way, a grease-like material is obtained which has been homogenized by the second kneading action. This uniform grease-like substance moves to the lower mixing chamber through the gap between the peripheral end of the ring plate and the rotating shaft, and the grease-like substance attached to the lower surface of the ring plate and the inclined surface of the lower part of the casing is lower. It is scraped off by a scraper and undergoes a shearing action.
Thus, the third kneading operation is performed. During this time, the uniformized grease-like material is diluted by being mixed with water or an aqueous solution of an emulsifier continuously supplied to the lower mixing chamber from a lower supply pipe opened to the side wall of the casing. The mixture is kneaded three times in total, and is diluted with the supplied water or the emulsifier aqueous solution to form an aqueous emulsion, which is continuously discharged to the outside from a discharge port opened in the lower part of the casing. Due to the presence of the ring plate, the water or emulsifier aqueous solution continuously supplied from the lower supply pipe to the lower mixing chamber is above the ring plate, ie,
Difficult to go to the middle mixing room. Therefore, it is difficult for the grease-like material to have a low viscosity or to have a large particle size of the emulsion.

[0006] In the continuous emulsifying apparatus (B), the liquid material, water and emulsifier continuously supplied to the upper mixing chamber move radially outward on the rotating rotating disk and move to the ceiling and side walls of the upper mixing chamber. Collide with The material adhering to the ceiling of the upper mixing chamber is scraped by the upper scraper and subjected to a shearing action. The scraped material falls on the rotating disk and moves radially outward on the rotating disk again. The material adhering to the inner wall of the upper mixing chamber is scraped off by the side scraper if there is a side scraper, and is subjected to a shearing action. Thus, a coarse grease-like material is obtained by the first kneading action. The coarse grease moves through the gap between the peripheral end of the rotating disk and the inner wall of the casing to the middle and upper mixing chamber, and is subjected to a shearing action between the cutouts of the upper ring plate and the lower surface scraper. In this way, a grease-like material is obtained which has been homogenized by the second kneading action. This uniform grease-like material moves to the middle and lower mixing chamber through a gap between the peripheral end of the upper ring plate and the rotating shaft, and is subjected to a shearing action between the cutouts of the lower ring plate and the lower surface scraper. Thus, a grease-like material which is more uniform by the third kneading action is obtained. The more uniform grease-like material moves to the lower mixing chamber through the gap between the peripheral end of the lower ring plate and the rotating shaft, and the grease-like material attached to the lower surface of the lower ring plate and the inclined surface of the casing lower portion is removed. It is scraped off by the lower scraper and subjected to a shearing action. Thus, the fourth kneading operation is performed. Meanwhile, the more uniform grease-like substance is continuously mixed and diluted with the water or the emulsifier aqueous solution supplied to the lower mixing chamber from the lower supply pipe opened in the side wall of the casing. Received a total of 4 kneading actions, diluted with the supplied water or emulsifier aqueous solution to form an aqueous emulsion,
It is continuously discharged to the outside through a discharge port opened in the lower part of the casing. Since the upper ring plate and the lower ring plate are present, the water or the emulsifier aqueous solution continuously supplied from the lower supply pipe to the lower mixing chamber is harder to reach above these ring plates, that is, to the middle and lower mixing chambers. Do not go to the mixing room. Therefore, it is unlikely that the grease-like material has a low viscosity or the emulsion has a large particle diameter.

The liquid material to be supplied may be insoluble in water or hardly water-soluble. Examples of such a liquid material include fats and oils, petroleum derivatives, synthetic oils, liquid compounds, and liquid polymers. As fats and oils, soybean oil, rapeseed oil, sesame oil,
Edible oils such as olive oil and lard, fish oil, and whale oil are exemplified. Examples of petroleum derivatives include mineral oil, petrolatum, liquid paraffin, asphalt, and tar. Examples of the synthetic oil include liquid polyolefins and higher fatty acid esters. Examples of the liquid compound include a cleaning solvent, a plasticizer, a stabilizer, a curing agent, and a catalyst. Examples of the liquid polymer include silicone oil, liquid polybutadiene, liquid polybutene, liquid polyisobutylene, liquid polyurethane, and liquid epoxy resin. Representative examples of silicone oils are diorganopolysiloxanes and organohydrogenpolysiloxanes that are liquid at room temperature. Its viscosity is usually several mPas or more, preferably 10 to 500
00 mPa · s. These include cyclic ones and linear ones. As cyclic ones, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane,
Examples are tetramethyltetravinylcyclotetrasiloxane. Examples of the linear one include dimethylpolysiloxane having a trimethylsiloxy group at both ends blocked, methyloctylpolysiloxane, methylvinylpolysiloxane, dimethylsiloxane / methylvinylsiloxane copolymer, dimethylsiloxane / methylphenylsiloxane copolymer, and dimethylpolysiloxane. Siloxane / diphenylsiloxane copolymer, dimethylsiloxane / methylphenylsiloxane
Methylvinylsiloxane copolymer, methyl (3,3,3-trifluoropropyl) polysiloxane or dimethylsiloxane / methyl (3-glycidyloxypropyl) siloxane copolymer, dimethylsiloxane / methyl (3-mercaptopropyl) siloxane Copolymer: dimethylpolysiloxane having dimethylvinylsiloxy groups at both ends blocked, dimethylsiloxane / methylvinylsiloxane copolymer,
Dimethyl siloxane / methyl phenyl siloxane copolymer or dimethyl siloxane / diphenyl siloxane / methyl vinyl siloxane copolymer; dimethyl polysiloxane, methyl vinyl polysiloxane, dimethyl siloxane / methyl vinyl siloxane copolymer having a hydroxyl group at both ends of a molecular chain, Dimethylsiloxane / methylphenylsiloxane copolymer or methyl (3,3,3-trifluoropropyl) polysiloxane; dimethylpolysiloxane / dimethylvinylsiloxane copolymer or dimethylsiloxane / methylphenylsiloxane with silanol groups at both ends Copolymers are exemplified. As the organohydrogenpolysiloxane, methylhydrogenpolysiloxane or a dimethylsiloxane / methylhydrogensiloxane copolymer having trimethylsiloxy groups at both terminals; dimethylpolysiloxane or methylhydrogenpoly having dimethylhydrogensiloxy groups at both terminals; A siloxane or a dimethylsiloxane / methylhydrogensiloxane copolymer is exemplified. Another example of a silicone oil is a branched methylpolysiloxane that is liquid at room temperature. An organopolysiloxane resin that is liquid at room temperature may be used instead of silicone oil. The silicone oil may be a mixture of two or more.

The emulsifier may be any one which has been conventionally used for emulsifying a liquid material, and an appropriate emulsifier may be selected according to the type of the liquid material. This includes higher fatty acid salts,
Anionic surfactants such as sulfates of higher alcohols, long-chain alkyl sulfonates, sodium polyoxyethylene alkylphenyl ether sulfate, and sodium alkylbenzene sulfonates; long-chain alkyl quaternary ammonium salts, higher amine salts, benzyl ammonium Cationic surfactants such as salts; non-ionic surfactants such as polyoxyethylene alkylphenyl ether, polyoxyethylene alkyl ether, polyoxyethylene higher fatty acid ester, sorbitan fatty acid ester, glycerin higher fatty acid ester, and polyoxyethylene / propylene-modified dimethylpolysiloxane An ionic surfactant; a double-sided surfactant is exemplified. Water-soluble polymers such as polyvinyl alcohol, methylcellulose, carboxymethylcellulose, hydroxymethylcellulose and antibacterial agents or preservatives as protective colloid agents or thickeners other than emulsifiers,
A fungicide, an antioxidant, a rust inhibitor, a dye, a filler, a curing catalyst, and the like may be added.

When the liquid material, water and the emulsifier are supplied from the upper supply port to the upper mixing chamber, 0.1 to 30 parts by weight of the emulsifier and 0.5 to 2 parts by weight of water are added to 100 parts by weight of the liquid material.
It may be supplied at a ratio of 0 parts by weight. Of course, the mixing ratio range may be exceeded depending on the degree of difficulty of emulsification of the liquid material. The emulsifier may be supplied in the form of an aqueous solution. When water or an emulsifier aqueous solution is supplied from the lower supply port to the lower mixing chamber, 10 to 200 parts by weight of water or 10 to 200 parts by weight of water and 0.1 to 2 parts by weight of emulsifier are added to 100 parts by weight of the liquid material.
It may be supplied at a ratio of 0 parts by weight. In order to supply the water or the aqueous solution of the emulsifier, the water may be supplied from a storage tank through a supply pipe using a metering pump. The aqueous emulsion produced by the production method of the present invention includes a water repellent, a release agent, a lubricant, a fiber treatment agent, a leather treatment agent, an artificial leather treatment agent, a cosmetic additive, a polisher, a defoaming agent, and a coating. It is useful as a material.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described with reference to the embodiments shown in the drawings. The production of the aqueous emulsion was performed at 25 ° C.
The average particle size of the aqueous emulsion was measured by a laser type particle size distribution meter (manufactured by HORIBA).

[0011]

Embodiment 1 In a continuous emulsifying apparatus A shown in FIG. 1, a rotating disk 3 is installed horizontally in a mixing chamber 2 in a casing 1. The center of the rotating disk 3 is fixed to the upper end of the rotating shaft 4. The rotating shaft 4 has a pulley 5 attached to the root thereof, and rotates by transmitting the rotation of a motor (not shown). The peripheral speed of the rotating disk 3 is preferably in the range of 3 to 100 m / sec. The rotating shaft 4 is supported by a bearing 6. A scraper 7a is attached to the upper surface of the rotating disk 3, a scraper 7b is attached to the side surface, and a scraper 7c is attached to the lower surface. Note that the side scraper is not essential. Each scraper is attached to one, preferably two or more. In the case of two or more, it is preferable that all are attached at an equal angle. The scraper 7c attached to the lower surface of the rotating disk 3 has a plate-like or grid-like shape extending in the radial and vertical directions of the rotating disk 3, but has a notch 7d extending horizontally inward from an outer end in the radial direction.
Exists. The scraper 7c is relatively movable with respect to the ring plate 8 described below. In FIG. 1, only one scraper is shown, and the other two are not shown. The ring plate 8 extends from the lower end of the inner wall of the cylindrical portion 1a of the casing 1 in a non-contact state so as to intersect with the notch 7d of the lower surface scraper 7c. There is a gap between them for the mixture to pass. The rotating disk 3 rotates under this inserted state.

The mixing chamber 2 in the casing 1 has a rotating disc 3
And the ring plate 8, the upper mixing chamber 2a, the middle mixing chamber 2b,
It is divided into a lower mixing chamber 2e. In the center of the upper lid 1b of the casing 1, an upper supply port 9 for supplying a material to the upper mixing chamber 2a is opened, and lower ends of upper supply pipes 9a and 9b are located. A liquid material is supplied to the upper mixing chamber 2a from an upper supply pipe 9a, and an aqueous solution of an emulsifier is supplied from an upper supply pipe 9b. Both upper supply pipes 9a and 9b are connected to a storage tank via a rotary pump (not shown).
The liquid material and the aqueous solution of the emulsifier are continuously supplied at a constant ratio. The upper supply pipe may be a single double pipe. An inverted conical portion 1c is provided at the lower end of the side wall of the cylindrical portion 1a of the casing 1.
Are connected, and a lower supply pipe 9c for supplying water or an aqueous emulsifier solution to the lower mixing chamber 2e penetrates. Since the bearing portion 6 projects from below in the center of the conical portion 1c, there is a recess having a ring shape and a V-shaped cross section. A lower mixing chamber 2e is provided in an inverted conical portion 1c at the bottom of the casing 1.
Outlet 1 for discharging aqueous emulsion from outside
1 is open.

[0013]

Embodiment 2 In the continuous emulsifying apparatus B shown in FIG. 2, a rotating disk 3 is installed horizontally in a mixing chamber 2 in a casing 1. The center of the rotating disk 3 is fixed to the upper end of the rotating shaft 4. The rotating shaft 4 has a pulley 5 attached to the root thereof, and rotates by transmitting the rotation of a motor (not shown). The peripheral speed of the rotating disk 3 is preferably in the range of 3 to 100 m / sec. The rotating shaft 4 is supported by a bearing 6. A scraper 7a is attached to the upper surface of the rotating disk 3, a scraper 7b is attached to the side surface, and a scraper 7c is attached to the lower surface. Note that the side scraper is not essential. Each scraper is attached to one, preferably two or more. In the case of two or more, it is preferable that all are attached at an equal angle. The scraper 7c attached to the lower surface of the rotating disk 3 has a plate-like or grid-like shape extending in the radial and vertical directions of the rotating disk 3, but has an upper cutout extending horizontally inward from the radially outer end. 7e and a lower notch 7f are present. The scraper 7c is relatively movable with respect to the following upper ring plate 8a and lower ring plate 8b. Figure 2 shows that all the scrapers
Only one is shown and the other two are not shown. The upper ring plate 8a extends from the inner wall of the cylindrical portion 1a of the casing 1 so as to intersect the upper notch 7e of the lower surface scraper 7c so as to intersect with the upper notch 7e. There is a gap between the and for the mixture to pass. The lower ring plate 8b extends from the lower end of the inner wall of the cylindrical portion 1a of the casing 1 so as to intersect the lower notch 7f of the lower surface scraper 7c in a non-contact state. There is a gap between the base material 4 and the base member 4 through which the mixture passes. The rotating disk 3 rotates under this inserted state.

The mixing chamber 2 of the casing 1 is divided into an upper mixing chamber 2a, a middle upper mixing chamber 2c, a middle lower mixing chamber 2d, and a lower mixing chamber 2e by a rotating disk 3, an upper ring plate 8a and a lower ring plate 8b. I have. In the center of the upper lid 1b of the casing 1, an upper supply port 9 for supplying a material to the upper mixing chamber 2a is opened, and lower ends of upper supply pipes 9a and 9b are located. A liquid material is supplied to the upper mixing chamber 2a from an upper supply pipe 9a, and an aqueous solution of an emulsifier is supplied from an upper supply pipe 9b. Both upper supply pipes 9a and 9b are connected to a storage tank via a rotary pump (not shown). The liquid material and the aqueous solution of the emulsifier are continuously supplied at a constant ratio. The upper supply pipe may be a single double pipe. An inverted conical portion 1c is connected to the lower end of the side wall of the cylindrical portion 1a of the casing 1, and a lower supply pipe 9c for supplying water or an emulsifier aqueous solution to the lower mixing chamber 2e penetrates. Since the bearing 6 protrudes from below at the center of the inverted conical portion 1c, there is an annular recess having a V-shaped cross section. An outlet 11 for discharging the aqueous emulsion from the lower mixing chamber 2e to the outside is provided in the inverted conical portion 1c, which is the bottom of the casing 1.
Is open.

[0015]

Example 3 In the continuous mixing apparatus A (the width of the ring plate 8 is 30 mm) in FIG. 1, while rotating the rotating disk 3 (the peripheral speed of the rotating disk 3 is 24 m / sec), the viscosity 30
At a ratio of 100 parts by weight of dimethylpolysiloxane capped with trimethylsiloxy groups at both ends of 00 mPa · s, 0.6 parts by weight of cetyltrimethylammonium chloride and 1.4 parts by weight of water,
The dimethylpolysiloxane is continuously supplied from the upper supply pipe 9a to the upper mixing chamber 2a using a metering pump (not shown), and the cetyltrimethylammonium chloride and water are mixed from the upper supply pipe 9b with the metering pump (not shown). It was continuously supplied to the chamber 2a to obtain a high-viscosity grease-like aqueous liquid. At the same time, using a metering pump (not shown), water was continuously supplied from the lower supply pipe 9c to the lower mixing chamber 2e to be continuously mixed with the high-viscosity grease-like aqueous liquid. A uniform aqueous emulsion of O / W-type dimethylpolysiloxane having a temperature of 30 ° C. or lower was continuously discharged from the outlet 11. When the average particle size of the aqueous emulsion was measured by a laser type particle size distribution meter (manufactured by HORIBA),
It was 1.0 μm. The emulsion was visually observed immediately after preparation and after storage for one month. The emulsion was uniform and had no oil film on the surface.

[0016]

Embodiment 4 Continuous mixing apparatus B (upper ring plate 8a) shown in FIG.
And the width of the lower ring plate 8b is 30 mm), while rotating the rotating disk 3 (the peripheral speed of the rotating disk 3 is 24 m / sec), and a dimethylpolysiloxane having a viscosity of 3000 mPa · s at both ends with a trimethylsiloxy-terminated dimethylpolysiloxane. The dimethylpolysiloxane is continuously supplied from the upper supply pipe 9a to the upper mixing chamber 2a at a ratio of 100 parts by weight, 0.6 parts by weight of cetyltrimethylammonium chloride and 1.4 parts by weight of water using a metering pump (not shown). Then, the cetyltrimethylammonium chloride and water were continuously supplied from the upper supply pipe 9b to the upper mixing chamber 2a using a metering pump (not shown),
A high-viscosity grease-like aqueous liquid was used. At the same time, using a metering pump (not shown), water was continuously supplied from the lower supply pipe 9c to the lower mixing chamber 2e to be continuously mixed with the high-viscosity grease-like aqueous liquid. A uniform aqueous emulsion of O / W-type dimethylpolysiloxane having a temperature of 30 ° C. or lower was continuously discharged from the outlet 11. The average particle size of the aqueous emulsion was measured using a laser particle size distribution analyzer (HORIBA
Was 0.4 μm. The emulsion was visually observed immediately after preparation and after storage for one month. The emulsion was uniform and had no oil film on the surface.

[0017]

Comparative Example In Example 3, emulsification and dilution were attempted under the same conditions using the same raw material and the same raw material as in the above continuous emulsifying apparatus A except that the ring plate 8 was removed. A uniform aqueous emulsion of O / W dimethylpolysiloxane was obtained, but the average particle size was 5.0 μm.
m. When the emulsion was visually observed immediately after the preparation, an oil film was present on the surface.

[0018]

When the liquid material is emulsified by using the continuous emulsifying apparatus and the production method of the present invention, an aqueous emulsion having a small particle size and excellent storage stability can be rapidly produced.

[0019]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a continuous emulsifying apparatus A of Example 1 of the present invention.

FIG. 2 is a longitudinal sectional view of a continuous emulsifying apparatus B according to a second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List A continuous mixing device B continuous mixing device 1 casing 1a cylindrical portion 1b top lid 1c inverted conical portion 2 mixing chamber 2a upper mixing chamber 2b middle mixing chamber 2c middle upper mixing chamber 2d middle lower mixing chamber 2e lower mixing chamber 3 rotating disk 4 rotating shaft Reference Signs List 5 Pulley 6 Bearing part 7a Upper surface scraper 7b Side surface scraper 7c Lower surface scraper 7d Notch 7e Upper notch 7f Lower notch 8 Ring plate 8a Upper ring plate 8b Lower ring plate 9 Upper supply port 9a Upper supply pipe 9b Upper supply pipe Supply pipe 10 Lower supply port 11 Discharge port

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) // B01J 13/00 B01J 13/00 A C08L 83:04 C08L 83:04 (72) Inventor Hideaki Komori Ichihara-shi, Chiba 2-2 Chizusa Kaigan Toray Dow Corning Silicone Co., Ltd. Production Headquarters Engineering Department (72) Inventor Toyohiko Yamadera 2-2 Chikusa Kaigan Ichihara-shi Chiba Prefecture Toray Dow Corning Silicone Co., Ltd. Production Headquarters Engineering Department (72) Inventor Mitsuo Hamada 2-2 Chigusa Coast, Ichihara City, Chiba Prefecture Toray Dow Corning Silicone Co., Ltd. Production Division Engineering Department F-term (reference) 4F070 AA60 AA63 AA65 AB22 AB24 AC12 AC38 AC40 AC43 AC46 AC50 AC72 AC80 AC92 AE13 AE14 AE30 CA03 CB01 CB12 4G035 AB40 AE13 4G037 AA02 AA11 DA15 EA04 4G065 AA01 AB12X AB28X AB32X AB33X AB34X AB38X BA05 BA06 BA07 CA03 DA02 DA04 DA06 DA07 DA10 EA10 GA01 4G078 AA01 AB05 BA05 CA01 CA0 5 CA13 DA24 EA10

Claims (6)

[Claims] 1. A rotating disk is installed in a mixing chamber in a casing, and a scraper is mounted on an upper surface and a lower surface of the rotating disk, and a ring plate is separated from a wall of the mixing chamber by a notch of the lower surface scraper. The mixing chamber is divided into an upper mixing chamber, a middle mixing chamber, and a lower mixing chamber by the rotating disk and the ring plate,
At the upper part of the casing there is an upper supply port for supplying liquid material, water and emulsifier to the upper mixing chamber, and on the side wall of the casing a lower supply port for supplying water or emulsifier aqueous solution to the lower mixing chamber, A continuous emulsification apparatus characterized in that an outlet for discharging the aqueous emulsion from the lower mixing chamber to the outside is open. 2. A rotating disk is installed in a mixing chamber in a casing, and a scraper is attached to an upper surface and a lower surface of the rotating disk, and an upper ring plate and a lower ring plate are separated from the inner wall of the mixing chamber by the lower surface scraper. The mixing chamber extends in a non-contact state between the notches of the upper and lower mixing plates, and the mixing chamber is formed by the rotating disk, the upper ring plate and the lower ring plate. In the upper part of the casing, there is an upper supply port for supplying the liquid material, water and the emulsifier to the upper mixing chamber, and on the side wall of the casing for supplying the water or the aqueous solution of the emulsifier to the lower mixing chamber. And a discharge port for discharging the aqueous emulsion from the lower mixing chamber to the outside. 3. The continuous emulsifying apparatus according to claim 1, wherein the peripheral speed of the rotating disk is 3 to 100 m / sec. 4. The continuous emulsifying apparatus according to claim 1, wherein the liquid material is silicone oil. 5. A liquid material, water and an emulsifier are continuously supplied to an upper mixing chamber from an upper supply port while rotating a rotary disk of the continuous emulsifying apparatus according to claim 1 or 2, and from a lower supply port. A method for continuously producing an aqueous emulsion, comprising continuously supplying water or an aqueous solution of an emulsifier to a lower mixing chamber and continuously discharging the aqueous emulsion to the outside from an outlet. 6. The continuous production method according to claim 5, wherein the liquid material is silicone oil.