CN216856663U - Alkaline hydrolysis device for photoinitiator production - Google Patents
Alkaline hydrolysis device for photoinitiator production Download PDFInfo
- Publication number
- CN216856663U CN216856663U CN202122961336.2U CN202122961336U CN216856663U CN 216856663 U CN216856663 U CN 216856663U CN 202122961336 U CN202122961336 U CN 202122961336U CN 216856663 U CN216856663 U CN 216856663U
- Authority
- CN
- China
- Prior art keywords
- liquid
- photoinitiator
- alkaline hydrolysis
- pipeline
- organic phase
- 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.)
- Active
Links
Images
Abstract
The utility model relates to an alkaline hydrolysis device for photoinitiator production, which comprises: the spiral pipe liquid mixer is used for mixing a chlorinated intermediate organic phase and alkali liquor, the alkaline hydrolysis reaction kettle is used for heating mixed reaction liquid and carrying out alkaline hydrolysis reaction, the cooler is used for cooling the mixed reaction liquid, and the liquid-liquid cyclone separator and the coalescence separator are arranged in series and used for separating a photoinitiator organic phase from a photoinitiator aqueous phase.
Description
Technical Field
The utility model belongs to the field of preparation of photoinitiators, and relates to an alkaline hydrolysis device for production of photoinitiators.
Background
The photoinitiator is a compound which can absorb energy with a certain wavelength in an ultraviolet region (250-420 nm) or a visible light region (400-800 nm) to generate free radicals, cations and the like so as to initiate the polymerization, crosslinking and curing of monomers.
The chlorination reaction and the alkaline hydrolysis reaction are common reaction processes in the preparation process of the photoinitiator, the chlorination reaction generates a chlorinated intermediate, then an organic phase of the chlorinated intermediate and alkali liquor are mixed in an alkaline hydrolysis kettle, the mixture is stirred under the condition that a heating sleeve keeps the temperature to carry out the alkaline hydrolysis reaction, then the product is cooled, kept stand and separated to obtain an organic phase of the photoinitiator, and the organic phase of the photoinitiator is purified to obtain the target photoinitiator; the photoinitiator product obtained by adopting the process often has the problem of higher chlorine content in the product, so that the service performance of the product is influenced;
CN111138260A discloses a preparation method of an α -hydroxyketone bifunctional photoinitiator, which comprises: reacting 4, 4' -diisobutyl diphenyl ether with chlorine to obtain a chloro intermediate; then carrying out alkaline hydrolysis reaction on the chloro intermediate under an alkaline condition, cooling after the reaction is finished, and standing and separating liquid to obtain a photoinitiator organic phase; the alkaline hydrolysis reaction is carried out in a solvent having a small polarity, such as petroleum ether, cyclohexane, methylcyclohexane, benzene, etc.; the alkaline hydrolysis reaction process is carried out in an alkaline hydrolysis kettle, the alkaline hydrolysis reaction is incomplete due to insufficient mass and heat transfer effects, the chlorinated intermediate is remained, standing and liquid separation are subsequently adopted, and the residual water in the organic phase causes more chloride ions, so that the problem of more chloride residues in the product photoinitiator is easily caused.
Therefore, the development of an alkaline hydrolysis device for photoinitiator production, which is beneficial to reducing chlorine residue in the product photoinitiator, is still of great significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an alkaline hydrolysis device for photoinitiator production, which comprises: the spiral pipe liquid mixer is used for mixing a chlorinated intermediate organic phase and alkali liquor, the alkaline hydrolysis reaction kettle is used for heating mixed reaction liquid and carrying out alkaline hydrolysis reaction, the cooler is used for cooling the mixed reaction liquid, and the liquid-liquid cyclone separator and the coalescence separator are arranged in series and used for separating a photoinitiator organic phase from a photoinitiator aqueous phase.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides an alkaline hydrolysis device for photoinitiator production, which comprises a spiral pipeline liquid mixer, an alkaline hydrolysis reaction kettle, a cooler, a liquid-liquid cyclone separator and a coalescence separator which are sequentially communicated.
In the preparation process of the photoinitiator, the traditional alkaline hydrolysis process generally adopts the steps of directly adding a chlorinated intermediate organic phase and alkali liquor into an alkaline hydrolysis kettle, and then carrying out mixed liquor alkaline hydrolysis reaction under the action of a stirring paddle, so that the problems of insufficient alkaline hydrolysis reaction and chlorinated intermediate residue are easily caused due to the insufficient mixed liquor; and obtaining a photoinitiator organic phase by adopting a standing and liquid separating mode after the reaction is finished, wherein the standing and liquid separating time is long, more water remains in the organic phase, and more chloride ions are contained in the water, so that the chlorine residue in the product photoinitiator is higher; in order to solve the technical problem, the utility model provides an alkaline hydrolysis device for producing a photoinitiator, which is beneficial to reducing chlorine residue in a product photoinitiator.
The alkaline hydrolysis device comprises a spiral pipeline mixer, wherein a liquid channel inside the mixer is of a spiral structure, and a two-phase fluid can generate violent turbulence in a liquid flow channel of the spiral structure, so that the effect of full mixing is achieved; and then the temperature is reduced to a proper temperature (for example, room temperature) through a cooler, and then the mixture sequentially enters a liquid-liquid cyclone separator and a coalescence separator to separate the organic phase and the aqueous phase of the photoinitiator; the liquid-liquid cyclone separator can realize the primary separation of the photoinitiator organic phase and the water phase, the photoinitiator organic phase of the light phase is discharged from an outlet at the top of the liquid-liquid cyclone separator, at the moment, a small amount of water drops with dispersed small particle sizes still remain in the photoinitiator organic phase, then the water drops enter the coalescence separator, the water drops with small particle sizes are coalesced by the coalescence separator to form water drops with large particle sizes, and the water drops are settled to the lower layer of the photoinitiator organic phase, so that the photoinitiator organic phase and the water phase are separated again, the water phase is removed, the photoinitiator organic phase with low water content is obtained, the content of chloride ions in the photoinitiator organic phase is reduced, and the chlorine residue in the product photoinitiator is favorably reduced.
Preferably, the coalescence separator comprises a tank body, wherein a liquid receiving plate is arranged on the inner side wall of the tank body, part of the edge of the liquid receiving plate is connected with the inner side wall of the tank body, and an overflow baffle plate is arranged at the edge of the liquid receiving plate, which is not connected with the inner side wall; connect the top of liquid board to be provided with the coalescence layer, connect the liquid board with it is provided with the clearance to gather between the layer, the clearance is used for the aqueous phase that the circulation coalescence obtained, on the inside wall of cell body with the position department that connects the liquid board and meet is provided with the aqueous phase export, on the inside wall of cell body with connect the position top that the liquid board meets to be provided with the organic phase of photoinitiator and add the entry, the organic phase of photoinitiator adds the entry intercommunication liquid cyclone's organic phase export.
Preferably, the bottom of the tank body of the coalescence separator is provided with a photoinitiator organic phase outlet.
The coalescence separator is used for further removing a small amount of water in the photoinitiator organic phase, and the design of the liquid receiving plate and the coalescence layer is adopted, wherein the photoinitiator organic phase enters through the photoinitiator organic phase inlet and firstly reaches the coalescence layer, tiny water drops are coalesced in the coalescence layer to form large water drops, the large water drops are settled and move between the organic phase and the liquid receiving plate in the organic phase, and then the lower-layer water phase can be discharged through the water phase outlet; the photoinitiator organic phase with further reduced water content overflows through an overflow partition plate and enters the bottom of the tank body, and is discharged through a photoinitiator organic phase outlet at the bottom of the tank body.
Preferably, the number of the liquid receiving plates is greater than or equal to 2, and the adjacent liquid receiving plates are arranged in a staggered mode in the vertical direction.
The number of the liquid receiving plates is more than or equal to 2, the adjacent liquid receiving plates are arranged in a staggered mode in the vertical direction, and a gathering layer is arranged above each liquid receiving plate; the photoinitiator organic phase inlet in the coalescence separator is positioned above the uppermost liquid receiving plate; by adopting the arrangement, the photoinitiator organic phase is treated by the upper coalescence layer and overflows through the overflow partition plate to enter the lower coalescence layer, water drops which are not separated by the upper coalescence layer can be further coalesced by the lower coalescence layer to form large water drops, and then the water drops are settled and layered, so that the water phase removal is further completed, and the coalescence separation effect of the coalescence separator is improved.
Preferably, in the adjacent liquid receiving plates, the height of the aggregation layer corresponding to the liquid receiving plate positioned below is lower than that of the liquid receiving plate positioned above.
Preferably, the coalescing layer comprises a coalescing filter element and a mesh support member disposed about the coalescing filter element. The aggregation layer is fixedly connected to the inner side wall of the groove body through the mesh-shaped supporting piece.
Preferably, the spiral pipeline liquid mixer comprises a pipeline, a main shaft is arranged in the pipeline, the central axis of the main shaft coincides with the central axis of the pipeline, a spiral blade is arranged on the main shaft, the outlet end of the pipeline is communicated with the alkaline hydrolysis reaction kettle, and the inlet end of the pipeline is provided with an alkali liquor feeding port and a chlorinated intermediate organic phase feeding port.
In the utility model, the spiral blade surrounding the main shaft in the spiral pipeline liquid mixer forms a spiral fluid channel in the space in the pipeline, and in the operation process, the chlorinated intermediate organic phase and the alkali liquid aqueous phase enter the spiral fluid channel at the inlet ends thereof under the action of external force to form violent turbulence, thereby realizing the uniform mixing of the fluid, and then enter the alkaline hydrolysis reaction kettle for heating reaction, being beneficial to improving the effect of the alkaline hydrolysis reaction, further reducing the residue of the chlorinated intermediate and reducing the chlorine residue in the product photoinitiator.
Preferably, a heating jacket is arranged outside the pipe of the spiral pipe liquid mixer.
The heating sleeve is arranged on the outer side of the pipeline of the spiral pipeline liquid mixer, so that the mixed liquid can be preheated, the energy consumption of subsequent heating reaction is reduced, and the alkaline hydrolysis reaction can be fully performed.
Preferably, the main shaft is fixedly connected with the outlet end of the pipeline through a support piece corresponding to the outlet end of the pipeline.
Where a support member is provided for securing the propeller blades, where the support member may be selected from an elongate support member to avoid interference with fluid flow.
Preferably, a liquid feeding hopper is arranged above the inlet end of the pipeline of the spiral pipeline liquid mixer, an alkali liquor feeding port and a chlorinated intermediate organic phase feeding port are arranged above the liquid feeding hopper, and a turbulence member is arranged in the liquid feeding hopper.
The liquid feeding hopper is arranged at the inlet end of the spiral pipeline liquid mixer, and the turbulence piece is arranged in the liquid feeding hopper, so that preliminary mixing of a chlorinated intermediate organic phase and alkali liquor can be realized, the mixing effect is improved, and the subsequent alkaline hydrolysis reaction effect is further improved.
Preferably, the spoiler is selected from corrugated plates; the preferred buckled plate sets up in the slope of liquid feeding fill, the edge of buckled plate with there is the clearance between the inner wall of liquid feeding fill. The gap facilitates downward movement of the fluid.
Preferably, the inlet end of the pipeline of the spiral pipeline liquid mixer corresponds to the lower part of the liquid feeding hopper and is provided with a push type stirring paddle, and the central axis of the stirring shaft of the push type stirring paddle coincides with the central axis of the pipeline of the spiral pipeline liquid mixer.
The propulsion type stirring paddle is arranged to exert propulsion force on the organic phase and the aqueous phase of the chlorinated intermediate, so that the liquid mixing effect of the spiral pipeline liquid mixer is improved, and the subsequent alkaline hydrolysis reaction effect is improved.
Preferably, the alkaline hydrolysis reaction kettle comprises a kettle body, the outer wall of the kettle body is wrapped by a heating sleeve, a reaction liquid phase inlet is formed in the kettle body and communicated with the outlet end of the pipeline of the spiral pipeline liquid mixer, a reaction liquid phase outlet is formed in the bottom of the kettle body and communicated with the cooler.
Preferably, the kettle body is internally provided with a stirring paddle, and the stirring paddle is connected with an external motor through a stirring shaft.
In the utility model, an alkaline hydrolysis reaction kettle is used for heating and mixing reaction liquid to carry out alkaline hydrolysis reaction, in the operation process, a reaction liquid phase obtained by mixing a spiral pipeline liquid mixer enters the kettle body through a reaction liquid phase inlet on the kettle body, then is subjected to heating reaction under the action of a stirring paddle and a heating sleeve, is discharged through a reaction liquid phase outlet positioned at the bottom of the kettle body, enters a cooler, is cooled to a proper temperature (such as room temperature), sequentially enters a liquid-liquid cyclone separator and a coalescence separator to carry out liquid-liquid separation to obtain a photoinitiator organic phase with low chlorine content, and is subjected to post-treatment and purification to obtain the photoinitiator with low chlorine content.
The utility model provides a use method of an alkaline hydrolysis device for photoinitiator production, which specifically comprises the following steps:
adding a chlorinated intermediate organic phase and an alkali liquid aqueous phase into a spiral pipeline liquid mixer from a chlorinated intermediate organic phase addition inlet and an alkali liquid addition inlet respectively, allowing the chlorinated intermediate organic phase and the alkali liquid aqueous phase to enter a spiral fluid channel of the spiral pipeline liquid mixer under the action of an initial speed, allowing two-phase fluid to generate violent turbulence to achieve a sufficient mixing effect, discharging the mixture through an outlet end of the spiral pipeline liquid mixer, allowing a mixed reaction liquid phase to enter an alkaline hydrolysis reaction kettle through a reaction liquid phase inlet of the alkaline hydrolysis reaction kettle, starting a heating sleeve and a stirring paddle to perform heating alkaline hydrolysis reaction, after the reaction is completed, opening a reaction liquid phase outlet at the bottom of a kettle body, conveying the reaction liquid phase into a cooler, cooling to a proper temperature, allowing the reaction liquid phase to enter a liquid-liquid cyclone separator to perform liquid-liquid preliminary separation, discharging a light-phase photoinitiator organic phase from a top outlet of the liquid-liquid cyclone separator, and discharging an aqueous phase from a bottom outlet of the liquid-liquid cyclone separator, at the moment, a small amount of small-particle-size water drops still exist in the photoinitiator organic phase, then the photoinitiator organic phase enters the coalescing separator through a photoinitiator organic phase inlet on the coalescing separator, firstly reaches the coalescing layer, the small-particle-size water drops in the photoinitiator organic phase form large water drops through coalescence, the large water drops settle to move to the bottom layer of the photoinitiator organic phase, an aqueous phase layer is formed on the liquid receiving plate, when the aqueous phase is more, an aqueous phase outlet is opened to discharge the aqueous phase, the photoinitiator organic phase overflows from an overflow partition plate to enter the lower coalescing layer, the small-particle-size water drops further coalesce to realize further separation of the aqueous phase, and is discharged from an aqueous phase outlet, the photoinitiator organic phase overflows from the overflow partition plate to enter the bottom of the tank body and is discharged through the photoinitiator organic phase outlet at the bottom of the tank body, and collection of the photoinitiator organic phase is completed.
Compared with the prior art, the utility model has the following beneficial effects:
the alkaline hydrolysis device for photoinitiator production comprises a spiral pipeline liquid mixer, an alkaline hydrolysis reaction kettle, a cooler, a liquid-liquid cyclone separator and a coalescence separator which are sequentially communicated, wherein a chlorinated intermediate organic phase and an alkaline liquid aqueous phase are fully mixed through the spiral pipeline liquid mixer, and then are heated for alkaline hydrolysis reaction through the alkaline hydrolysis reaction kettle, so that the mass transfer effect is improved, the full degree of the alkaline hydrolysis reaction is favorably improved, and the residue of a chlorinated intermediate in a product is favorably reduced; and then, the water phase in the organic phase of the photoinitiator is fully removed by combining a liquid-liquid cyclone separator and a coalescence separator, so that the content of chloride ions in the organic phase of the photoinitiator is favorably reduced, and the chlorine residue in the product photoinitiator is favorably reduced.
Drawings
FIG. 1 is a schematic view of the structure of an alkaline hydrolysis apparatus for photoinitiator production in example 1 of the present invention;
FIG. 2 is a schematic structural view of an alkaline hydrolysis apparatus for photoinitiator production in example 2 of the present invention;
FIG. 3 is a schematic structural view of an alkaline hydrolysis apparatus for photoinitiator production in example 3 of the present invention;
1-a spiral pipeline liquid mixer, 10-a pipeline, 11-a main shaft, 12-a propeller blade, 13-an alkali liquor adding port, 14-a chloro-intermediate organic phase adding port, 2-an alkaline hydrolysis reaction kettle, 20-a kettle body, 21-a heating jacket, 22-a reaction liquid phase inlet, 23-a reaction liquid phase outlet, 24-a stirring paddle, 25-a stirring shaft and 26-an external motor, 3-cooler, 4-liquid cyclone separator, 5-coalescence separator, 50-tank, 51-liquid-receiving plate, 52-overflow baffle, 53-aggregation layer, 54-water phase outlet, 55-photoinitiator organic phase inlet, 56-photoinitiator organic phase outlet, 6-liquid-feeding bucket, 60-turbulence piece and 7-propelling stirring paddle.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
The embodiment provides an alkaline hydrolysis device for photoinitiator production, a schematic structural diagram of which is shown in fig. 1, and the alkaline hydrolysis device comprises: the device comprises a spiral pipeline liquid mixer 1, an alkaline hydrolysis reaction kettle 2, a cooler 3, a liquid-liquid cyclone separator 4 and a coalescence separator 5 which are communicated in sequence;
the spiral pipeline liquid mixer 1 comprises a pipeline 10, a main shaft 11 is arranged in the pipeline 10, the central axis of the main shaft 11 is superposed with the central axis of the pipeline 10, a spiral blade 12 is arranged on the main shaft 11, the outlet end of the pipeline 10 is communicated with the alkaline hydrolysis reaction kettle 2, and the inlet end of the pipeline 10 is provided with an alkaline liquor feeding port 13 and a chlorinated intermediate organic phase feeding port 14;
the alkaline hydrolysis reaction kettle 2 comprises a kettle body 20, the outer wall of the kettle body 20 is wrapped by a heating sleeve 21, a reaction liquid phase inlet 22 is arranged on the kettle body 20, the reaction liquid phase inlet 22 is communicated with the outlet end of the pipeline 10 of the spiral pipeline liquid mixer 1, a reaction liquid phase outlet 23 is arranged at the bottom of the kettle body 20, and the reaction liquid phase outlet 23 is communicated with the cooler 3; a stirring paddle 24 is arranged in the kettle body 20, and the stirring paddle 24 is connected with an external motor 26 through a stirring shaft 25;
the cooler 3 is a tubular cooler which is horizontally arranged, a cooling medium circulates on the shell pass of the tubular cooler, and a reaction liquid phase circulates on the tube pass of the tubular cooler;
the coalescence separator 5 comprises a tank body 50, wherein a liquid receiving plate 51 is arranged on the inner side wall of the tank body 50, part of the edge of the liquid receiving plate 51 is connected with the inner side wall of the tank body 50, and an overflow baffle plate 52 is arranged on the edge of the liquid receiving plate 51 which is not connected with the inner side wall; a coalescence layer 53 is arranged above the liquid receiving plate 51, a gap is arranged between the liquid receiving plate 51 and the coalescence layer 53, the gap is used for circulating and coalescing the obtained water phase, a water phase outlet 54 is arranged at the position on the inner side wall of the tank body 50, which is connected with the liquid receiving plate 51, a photoinitiator organic phase inlet 55 is arranged above the position on the inner side wall of the tank body, which is connected with the liquid receiving plate, and the photoinitiator organic phase inlet 55 is communicated with the organic phase outlet of the liquid-liquid cyclone separator 4; the bottom of the tank body is provided with a photoinitiator organic phase outlet 56, the number of the liquid receiving plates 51 is 2, adjacent liquid receiving plates are arranged in a staggered mode in the vertical direction, and a condensation layer is independently arranged above the adjacent liquid receiving plates.
The embodiment provides an operation method of the alkaline hydrolysis device for production of the photoinitiator, which specifically comprises the following steps:
adding a chlorinated intermediate organic phase and an alkali liquid aqueous phase into a spiral pipeline liquid mixer from a chlorinated intermediate organic phase inlet and an alkali liquid inlet respectively, allowing the chlorinated intermediate organic phase and the alkali liquid aqueous phase to enter a spiral fluid channel of the spiral pipeline liquid mixer under the action of initial speed, allowing the two-phase fluid to generate violent turbulence to achieve the effect of full mixing, discharging the two-phase fluid through an outlet end of the spiral pipeline liquid mixer, allowing a mixed reaction liquid phase to enter an alkaline hydrolysis reaction kettle from a reaction liquid phase inlet of the alkaline hydrolysis reaction kettle, starting a heating sleeve and a stirring paddle to perform heating alkaline hydrolysis reaction, after the reaction is completed, starting a reaction liquid phase outlet at the bottom of a kettle body, conveying the reaction liquid phase into a cooler, cooling to a proper temperature, allowing the reaction liquid phase to enter a liquid-liquid cyclone separator to perform liquid-liquid primary separation, discharging a light-phase photoinitiator organic phase from a top outlet of the liquid-liquid cyclone separator, and discharging an aqueous phase from a bottom outlet of the liquid-liquid cyclone separator, at the moment, a small amount of small-particle-size water drops still exist in the photoinitiator organic phase, then the photoinitiator organic phase enters the coalescing separator through a photoinitiator organic phase inlet on the coalescing separator, firstly reaches the coalescing layer, the small-particle-size water drops in the photoinitiator organic phase form large water drops through coalescence, the large water drops settle to move to the bottom layer of the photoinitiator organic phase, an aqueous phase layer is formed on the liquid receiving plate, when the aqueous phase is more, an aqueous phase outlet is opened to discharge the aqueous phase, the photoinitiator organic phase overflows from an overflow partition plate to enter the lower coalescing layer, the small-particle-size water drops further coalesce to realize further separation of the aqueous phase, and is discharged from an aqueous phase outlet, the photoinitiator organic phase overflows from the overflow partition plate to enter the bottom of the tank body and is discharged through the photoinitiator organic phase outlet at the bottom of the tank body, and collection of the photoinitiator organic phase is completed.
Example 2
The embodiment provides an alkaline hydrolysis device for photoinitiator production; the schematic structure is shown in figure 2,
the difference between the embodiment and embodiment 1 is that a liquid feeding hopper 6 is arranged above the inlet end of the pipeline of the spiral pipeline liquid mixer, an alkali liquor feeding port 13 and a chlorinated intermediate organic phase feeding port 14 are arranged above the liquid feeding hopper 6, and a flow disturbing member 60 is arranged in the liquid feeding hopper 6; the spoiler 60 is selected from a corrugated plate; the corrugated plate is obliquely arranged in the liquid feeding hopper, and a gap is formed between the edge of the corrugated plate and the inner wall of the liquid feeding hopper; the inlet end of the pipeline of the spiral pipeline liquid mixer corresponds to the pushing type stirring paddle 7 is arranged below the liquid adding hopper, the central axis of the stirring shaft 25 of the pushing type stirring paddle 7 is coincided with the central axis of the pipeline of the spiral pipeline liquid mixer, and the pushing type stirring paddle 7 is connected with an external motor 26 through the stirring shaft 25.
In this embodiment, set up the liquid feeding fill in the top of helical pipeline liquid mixer's entry end, and set up buckled plate vortex piece in the liquid feeding fill, it can realize the initial mixing to chloro-intermediate organic phase and alkali lye aqueous phase, and set up impulse type stirring rake in the below that entry end one side of helical pipeline liquid mixer corresponds the liquid feeding fill, it can provide the propulsive force for the mixed reaction liquid through initial mixing, make in it gets into the helical pipeline with higher speed, thereby improve the liquid mixing effect, and then be favorable to improving follow-up alkaline hydrolysis reaction effect.
In the above-mentioned alkaline hydrolysis device operation process, with chloro midbody organic phase and alkali lye respectively by chloro midbody organic phase add entry and alkali lye add entry add the liquid hopper in, flow through the vortex piece and realize initial mixing, later get into the entry end of helical pipeline liquid mixer, under the effect of impulse type stirring rake, in the helical fluid passageway of entering helical pipeline liquid mixing section at a higher speed, accomplish the liquid mixing process.
Example 3
The embodiment provides an alkaline hydrolysis device for production of a photoinitiator; the schematic structure is shown in figure 3,
the difference between the present embodiment and embodiment 2 is that a heating jacket 21 is arranged outside the pipe of the spiral pipe liquid mixer;
in this embodiment, set up above-mentioned heating jacket, it can preheat the fluid of liquid mixing process to be favorable to improving follow-up alkaline hydrolysis's effect, and then be favorable to reducing chloro midbody and remain.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. An alkaline hydrolysis device for photoinitiator production is characterized by comprising a spiral pipeline liquid mixer, an alkaline hydrolysis reaction kettle, a cooler, a liquid-liquid cyclone separator and a coalescence separator which are sequentially communicated.
2. The alkaline hydrolysis device for photoinitiator production according to claim 1, wherein the coalescence separator comprises a tank body, a liquid receiving plate is arranged on the inner side wall of the tank body, part of the edge of the liquid receiving plate is connected with the inner side wall of the tank body, and an overflow baffle plate is arranged on the edge of the liquid receiving plate which is not connected with the inner side wall; the top that connects the liquid board is provided with the coalescence layer, connect the liquid board with be provided with the clearance between the coalescence layer, the clearance is used for circulating the aqueous phase that the coalescence obtained, on the inside wall of cell body with the position department that connects the liquid board and meet is provided with the aqueous phase export, on the inside wall of cell body with connect the position top that the liquid board meets to be provided with photoinitiator organic phase and add the entry, photoinitiator organic phase is with the entry intercommunication liquid hydrocyclone's organic phase export.
3. The alkaline hydrolysis device for producing the photoinitiator according to claim 2, wherein the number of the liquid receiving plates is greater than or equal to 2, and the adjacent liquid receiving plates are staggered in the vertical direction.
4. The alkaline hydrolysis device for photoinitiator production according to claim 1, wherein the spiral pipeline liquid mixer comprises a pipeline, a main shaft is arranged in the pipeline, the central axis of the main shaft coincides with the central axis of the pipeline, a propeller blade is arranged on the main shaft, the outlet end of the pipeline is communicated with the alkaline hydrolysis reaction kettle, and the inlet end of the pipeline is provided with an alkaline solution inlet and a chlorinated intermediate organic phase inlet.
5. The alkaline hydrolysis device for photoinitiator production according to claim 4, wherein a heating jacket is arranged outside the pipe of the spiral pipe liquid mixer.
6. The alkaline hydrolysis device for photoinitiator production according to claim 1, wherein a liquid feeding hopper is arranged above the inlet end of the pipeline of the spiral pipeline liquid mixer, an alkali liquid feeding port and a chlorinated intermediate organic phase feeding port are arranged above the liquid feeding hopper, and a flow disturbing member is arranged in the liquid feeding hopper.
7. The alkaline hydrolysis apparatus for photoinitiator production as claimed in claim 6, wherein the flow perturbation member is selected from corrugated plates.
8. The alkaline hydrolysis device for photoinitiator production according to claim 6, wherein an inlet end of the pipeline of the spiral pipeline liquid mixer is provided with a pushing type stirring paddle corresponding to the lower part of the liquid feeding hopper, and a central axis of a stirring shaft of the pushing type stirring paddle is coincident with a central axis of the pipeline of the spiral pipeline liquid mixer.
9. The alkaline hydrolysis device for producing the photoinitiator according to claim 1, wherein the alkaline hydrolysis reaction kettle comprises a kettle body, the outer wall of the kettle body is wrapped by a heating sleeve, a reaction liquid phase inlet is arranged on the kettle body and is communicated with the outlet end of the pipeline of the spiral pipeline liquid mixer, a reaction liquid phase outlet is arranged at the bottom of the kettle body and is communicated with the cooler.
10. The alkaline hydrolysis device for photoinitiator production according to claim 9, wherein a stirring paddle is arranged in the kettle body, and the stirring paddle is connected with an external motor through a stirring shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122961336.2U CN216856663U (en) | 2021-11-30 | 2021-11-30 | Alkaline hydrolysis device for photoinitiator production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122961336.2U CN216856663U (en) | 2021-11-30 | 2021-11-30 | Alkaline hydrolysis device for photoinitiator production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216856663U true CN216856663U (en) | 2022-07-01 |
Family
ID=82127307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122961336.2U Active CN216856663U (en) | 2021-11-30 | 2021-11-30 | Alkaline hydrolysis device for photoinitiator production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216856663U (en) |
-
2021
- 2021-11-30 CN CN202122961336.2U patent/CN216856663U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207153705U (en) | A kind of reactor with solid-liquid separation function | |
| CN216856663U (en) | Alkaline hydrolysis device for photoinitiator production | |
| CN113908786A (en) | 2B acid crude production system | |
| CN105617973A (en) | Petrochemical product production equipment | |
| CN216756447U (en) | Alkaline hydrolysis device for producing photoinitiator | |
| CN110193333A (en) | A kind of gas-liquid-solid multiphase tubular type stirred reactor | |
| CN212818288U (en) | Oil-water separation device and esterification reaction system using same | |
| CN110698446B (en) | Method for producing trimellitic anhydride by continuous method | |
| CN218901857U (en) | Device for continuously producing high-solid-content polymer products | |
| CN114317022B (en) | Pyrolysis oil quality improvement treatment process | |
| CN112827215B (en) | Cyclone extraction method and device for C5 petroleum resin polymerization liquid | |
| CN202047018U (en) | Device for preparing cyclohexene from benzene through selective hydrogenation | |
| CN210632096U (en) | Reation kettle that stirring effect is good | |
| CN111135781B (en) | Production system for etoxazole | |
| CN113060809A (en) | Layered double metal hydroxide preparation sewage purification treatment device | |
| CN207025317U (en) | A kind of fractionation horizontal reacting kettle for producing tetrabutyl titanate | |
| CN219168417U (en) | Reaction kettle | |
| CN216573002U (en) | 2B acid crude production system | |
| CN108854919A (en) | A kind of chemico-heating wash reactor of waste mineral oil and the waste containing mineral oil | |
| CN218860668U (en) | Waste grease purification treatment system | |
| CN212732115U (en) | Acrylic acid dispersion production system | |
| CN220677819U (en) | Dinonyl naphthalene sulfonic acid apparatus for producing | |
| CN112851857B (en) | Separation, consumption reduction and emission reduction method and device in C5 petroleum resin production process | |
| CN220176887U (en) | Production device for terbuta sulfate Lin Xiuhua working procedure | |
| CN214716590U (en) | Latex polymerization cauldron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |