CN221016077U - 2,6 Dihydroxy acetophenone acylation reaction system - Google Patents
2,6 Dihydroxy acetophenone acylation reaction system Download PDFInfo
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- CN221016077U CN221016077U CN202322771141.0U CN202322771141U CN221016077U CN 221016077 U CN221016077 U CN 221016077U CN 202322771141 U CN202322771141 U CN 202322771141U CN 221016077 U CN221016077 U CN 221016077U
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- acylation reaction
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- 238000005917 acylation reaction Methods 0.000 title claims abstract description 70
- YPTJKHVBDCRKNF-UHFFFAOYSA-N 2',6'-Dihydroxyacetophenone Chemical compound CC(=O)C1=C(O)C=CC=C1O YPTJKHVBDCRKNF-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 69
- 238000002425 crystallisation Methods 0.000 claims abstract description 45
- 230000008025 crystallization Effects 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000000926 separation method Methods 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 18
- IYAYIUGCUKYFGY-UHFFFAOYSA-N 2-hydroxy-1-(2-hydroxyphenyl)ethanone Chemical compound OCC(=O)C1=CC=CC=C1O IYAYIUGCUKYFGY-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000002826 coolant Substances 0.000 claims description 15
- 239000012452 mother liquor Substances 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- 238000012432 intermediate storage Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 3
- HEJLFBLJYFSKCE-UHFFFAOYSA-N 2',3'-Dihydroxyacetophenone Chemical compound CC(=O)C1=CC=CC(O)=C1O HEJLFBLJYFSKCE-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 6
- 238000010924 continuous production Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 4
- NBIBDIKAOBCFJN-UHFFFAOYSA-N 2,2-dihydroxy-1-phenylethanone Chemical compound OC(O)C(=O)C1=CC=CC=C1 NBIBDIKAOBCFJN-UHFFFAOYSA-N 0.000 description 3
- 230000010933 acylation Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- TXFPEBPIARQUIG-UHFFFAOYSA-N 4'-hydroxyacetophenone Chemical compound CC(=O)C1=CC=C(O)C=C1 TXFPEBPIARQUIG-UHFFFAOYSA-N 0.000 description 2
- -1 alpha-bromo-p-hydroxyphenylethanone Chemical compound 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- XYIBRDXRRQCHLP-UHFFFAOYSA-N ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- ODIGIKRIUKFKHP-UHFFFAOYSA-N (n-propan-2-yloxycarbonylanilino) acetate Chemical compound CC(C)OC(=O)N(OC(C)=O)C1=CC=CC=C1 ODIGIKRIUKFKHP-UHFFFAOYSA-N 0.000 description 1
- 238000005618 Fries rearrangement reaction Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229940035676 analgesics Drugs 0.000 description 1
- 239000003907 antipyretic analgesic agent Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000008845 cholagoga Substances 0.000 description 1
- 229940124571 cholagogue Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000012450 pharmaceutical intermediate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a 2, 6-dihydroxyacetyl benzene acylation reaction system which comprises an acylation reaction kettle, a cooling crystallization tank and a centrifugal separation tank, wherein a first feed inlet and a second feed inlet are formed in the top of the acylation reaction kettle, a heating mechanism is arranged on the outer side of the acylation reaction kettle, a first stirring mechanism is arranged in the acylation reaction kettle, a cooling mechanism is arranged on the outer side of the cooling crystallization tank, a second stirring mechanism is arranged in the cooling crystallization tank, the bottom of the acylation reaction kettle is communicated with the top of the cooling crystallization tank through a first communicating pipe, the bottom of the cooling crystallization tank is communicated with the bottom of the centrifugal separation tank through a second communicating pipe, and conveying pumps are arranged on the first communicating pipe and the second communicating pipe. The system adopts a mode of combining an acylation reaction kettle, a cooling crystallization tank and a centrifugal separation tank to produce the 2, 6-dihydroxyacetophenone, so that the production efficiency can be effectively improved, the production quality and the production capacity of the product can be improved, and the continuous and large-scale production of the product can be realized.
Description
Technical Field
The utility model belongs to the technical field of chemical synthesis production equipment, and particularly relates to a2, 6-dihydroxyacetyl benzene acylation reaction system.
Background
2, 6-Dihydroxyacetophenone is also called 2, 6-dihydroxyacetophenone, and 2, 6-dihydroxyacetophenone is often used as an intermediate for organic synthesis to react with other compounds to synthesize a plurality of important substances, and is generally used for synthesizing pharmaceutical intermediates (alpha-bromo-p-hydroxyphenylethanone, cholagogue, antipyretic analgesic drugs and other drugs), and other drugs (spice, feed and the like; pesticides, dyes, liquid crystal materials and the like). At present, 2,6 dihydroxyacetophenone is synthesized by taking phenol as a raw material, phenyl acid ester is generally prepared through acylation reaction, and then the p-hydroxyacetophenone is prepared through Fries rearrangement reaction, wherein the acylation reaction is a key process for producing 2,6 dihydroxyacetophenone, the rationality of the arrangement of an acylation reaction system is directly related to the yield of 2,6 dihydroxyacetophenone, in the prior art, the acylation system of 2,6 dihydroxyacetophenone only depends on a stirring reaction kettle to realize the acylation of the raw material, and the acylation kettle with the structure has the defects of low synthesis reaction efficiency, low product yield and inapplicability to large-scale production in the using process. Therefore, the development of a2, 6-dihydroxyacetyl benzene acylation reaction system which has reasonable structural arrangement, can improve the production efficiency and is suitable for large-scale production is objectively required.
Disclosure of Invention
The utility model aims to provide a 2,6 dihydroxyl acetophenone acylation reaction system which has reasonable structural arrangement, can improve the production efficiency and is suitable for large-scale production.
The utility model aims at realizing the method, which comprises an acylation reaction kettle, a cooling crystallization tank and a centrifugal separation tank, wherein a first feed inlet and a second feed inlet are formed in the top of the acylation reaction kettle, a heating mechanism is arranged on the outer side of the acylation reaction kettle, a first stirring mechanism is arranged in the acylation reaction kettle, a cooling mechanism is arranged on the outer side of the cooling crystallization tank, a second stirring mechanism is arranged in the cooling crystallization tank, the bottom of the acylation reaction kettle is communicated with the top of the cooling crystallization tank through a first communicating pipe, the bottom of the cooling crystallization tank is communicated with the bottom of the centrifugal separation tank through a second communicating pipe, and conveying pumps are arranged on the first communicating pipe and the second communicating pipe.
The device has the advantages that: firstly, the device utilizes the acylation reaction kettle to carry out the mixing reaction of resorcinol, acetic anhydride, ethyl acetoacetate and ethanol, and under the cooperation of the heating mechanism and the stirring mechanism, the two raw materials can be fully mixed, and the efficiency and the effect of the mixing reaction of the two raw materials are improved; secondly, this device utilizes crystallization retort to crystallize the mixture after the reaction, under cooling body and rabbling mechanism's mixture, can effectual effect that the mixture was crystallized, further improvement product yield, thirdly this device utilizes the centrifugal separation jar to realize the night separation of product, and its solid-liquid separation's effect is better. In conclusion, the system adopts the mode of combining an acylation reaction kettle, a cooling crystallization tank and a centrifugal separation tank to produce the 2, 6-dihydroxyacetophenone, so that the production efficiency can be effectively improved, the production quality and the production capacity of products are improved, the arrangement of equipment is reasonable, the continuous and large-scale production of the products can be realized, the use effect is better, and the system is easy to popularize and use.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic structural view of an acylation reaction vessel 1 in the present utility model;
FIG. 3 is a schematic diagram showing the structure of the cooling crystallization tank 2 in the present utility model;
FIG. 4 is a schematic view showing the structure of a centrifugal separation tank 3 according to the present utility model;
In the figure: the device comprises a 1-acylation reaction kettle, a 11-first feed inlet, a 12-second feed inlet, a 13-heat-preserving jacket, a 14-heating half pipe, a 15-steam inlet, a 16-steam outlet, a 17-motor heat pipe, a 2-cooling crystallization tank, a 21-cooling jacket, a 22-cooling medium inlet, a 23-cooling medium outlet, a 24-baffle plate, a 25-flow guide pipe, a 3-centrifugal separation tank, a 31-outer tank body, a 32-inner separation cylinder, a 33-cone hopper, a 34-feed pipe, a 35-discharge pipe, a 36-rotating shaft sleeve, a 37-circulation pipe, a 38-intermediate storage tank, a 39-driving motor, a 310-driving pulley, a 311-driven pulley, a 312-transmission belt, a 4-first communication pipe, a 5-second communication pipe and a 6-conveying pump.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings, without limiting the utility model in any way, and any alterations or modifications based on the teachings of the utility model are within the scope of the utility model.
As shown in fig. 1 to 4, the utility model comprises an acylation reaction kettle 1, a cooling crystallization tank 2 and a centrifugal separation tank 3, wherein a first feed inlet 11 and a second feed inlet 12 are arranged at the top of the acylation reaction kettle 1, a heating mechanism is arranged at the outer side of the acylation reaction kettle 1 and is used for indirectly heating the acylation reaction kettle 1 to improve the working temperature of the acylation reaction kettle 1, a first stirring mechanism is arranged in the acylation reaction kettle 1 and is used for stirring raw materials in the acylation reaction kettle 1 to improve the speed and effect of the mixing reaction, the first stirring mechanism adopts a structure used in the prior art, as long as stirring and mixing can be realized, a cooling mechanism is arranged at the outer side of the cooling crystallization tank 2 and is used for cooling the cooling crystallization tank 2 to realize cooling crystallization of materials, a second stirring mechanism is arranged in the cooling crystallization tank 2, the second stirring mechanism adopts a structure used in the prior art, as long as the working temperature of the acylation reaction kettle 1 can be improved, the bottom of the acylation reaction kettle 1 is provided with a first connecting pipe 4 and the cooling crystallization tank 2, the bottom of the acylation reaction kettle is directly connected with a first communicating pipe 6 through a first communicating pipe, a second communicating pipe 6 communicating pipe is used for directly communicating the bottom of the cooling crystallization tank 2 and a second communicating pipe 6 communicating with the bottom of the material conveying pump 6, and a conveying pump is used for directly communicating the bottom 6 and a conveying the material is required to be directly arranged in the conveying pump 6 according to the requirements.
The working process of the system is as follows: resorcinol is added into the acylation reaction kettle 1 through a first charging hole 11 according to the measurement, acetic anhydride, ethyl acetoacetate and ethanol are added into the reaction kettle through a second charging hole 12, the acylation reaction kettle 1 is heated to about 110 ℃ by a heating mechanism, raw materials in the acylation reaction kettle 1 are stirred and reacted for 2 hours by a first stirring mechanism while being heated, the acylation reaction is carried out, after the acylation reaction is finished, 2,6 dihydroxyacetophenone mother liquor (acylate and unreacted raw materials) in the acylation reaction kettle 1 is sent into a cooling crystallization tank 2 through a first communication pipe 4, the 2,6 dihydroxyacetophenone mother liquor in the cooling crystallization tank 2 is cooled by a cooling mechanism, meanwhile, the 2,6 dihydroxyacetophenone mother liquor is stirred by a second stirring mechanism, solid crystal materials are continuously crystallized in the stirring process, after the cooling crystallization is finished, the 2,6 dihydroxyacetophenone containing crystal materials is sent into a centrifugal separation tank 3 through a second stirring mechanism, centrifugal separation is carried out, and the rearranged crystal mother liquor is continuously centrifuged and enters a subsequent communication pipe for subsequent centrifugation treatment after the cooling crystallization reaction. The system adopts the mode of combining the acylation reaction kettle 1, the cooling crystallization tank 2 and the centrifugal separation tank 3 to produce the 2, 6-dihydroxyacetophenone, so that the production efficiency can be effectively improved, the production quality and the production capacity of products can be improved, the arrangement of equipment is reasonable, the continuous and large-scale production of the products can be realized, and the system has a better use effect.
Further, in order to realize evenly heating the acylation reaction kettle 1, the heating mechanism comprises a heat preservation jacket 13 and a heating half pipe 14, the heating half pipe 14 is arranged on the outer wall of the acylation reaction kettle 1 in a spiral mode, the heat preservation jacket 13 is arranged on the outer side of the acylation reaction kettle 1 at intervals, a steam inlet 15 communicated with the heating half pipe 14 is arranged on the lower portion of the heat preservation jacket 13, a steam outlet 16 communicated with the heating half pipe 14 is arranged on the upper portion of the heat preservation jacket 13, steam is introduced into the heating half pipe 14 through the steam inlet 15, the acylation reaction kettle 1 can be heated in the process that the steam flows in the heating half pipe 14, the heated steam is discharged from the steam outlet 16, and the heat preservation jacket 13 can be used for preserving heat of the acylation reaction kettle 1 and guaranteeing that the heating temperature in the acylation reaction kettle 1 is uniform and constant. Preferably, when the heating speed in the acylation reaction kettle 1 is slow or the heating temperature does not reach the ideal temperature, a plurality of groups of electric heating pipes 17 are uniformly distributed in the space between the heat preservation jacket 13 and the acylation reaction kettle 1, the electric heating pipes 17 are utilized to heat the acylation reaction kettle, the heating speed is higher, and the electric heating pipes 17 are of the prior art and can directly purchase finished products.
Further, the cooling mechanism includes a cooling jacket 21, a cooling medium inlet 22 and a cooling medium outlet 23, the cooling jacket 21 is disposed at the outer side of the cooling crystallization tank 1 at intervals, the cooling medium inlet 22 is disposed at the lower portion of the cooling jacket 21, the cooling medium outlet 23 is disposed at the upper portion of the cooling jacket 21, a plurality of baffle plates 24 are obliquely and alternately installed in the space between the cooling jacket 21 and the cooling crystallization tank 2, the cooling medium is conveyed into the space between the cooling jacket 21 and the cooling crystallization tank 3 through the cooling medium inlet 22, the cooling medium can be cold air or cooling water, after entering the space between the cooling jacket 21 and the cooling crystallization tank 2, curved flow is performed under the action of the baffle plates 24, the flow speed of the cooling medium can be slowed down, the flow direction of the cooling medium is changed, and cooling of the cooling crystallization tank 2 can be realized in the process of curved flow, preferably, in order to improve the effect of cooling crystallization, the number of the cooling crystallization tank 2 is 1-3, the number of the cooling crystallization tanks 2 is determined by the flow guide pipes which are automatically used according to the actual number, and the number of the cooling crystallization tanks 2 is communicated with each other through the two adjacent cooling tanks 25, and the flow guide pipes 25 are automatically used, and the two cooling tanks 2 are communicated with each other by the pump 25.
Further, the centrifugal separation tank 3 includes outer jar body 31 and interior section of thick bamboo 32, the bottom and the top of outer jar body 31 are corresponding to be installed rotatory axle sleeve 36, interior section of thick bamboo 32 is located the inside of outer jar body 31, installs the roof in the top of interior section of thick bamboo 32, installs cone bucket 33 in the bottom, equipartition processing has a plurality of filtration pores on interior section of thick bamboo 32 and the cone bucket 33, be provided with the inlet pipe 34 that extends to outer jar body 31 top on the roof, the bottom of cone bucket 33 is provided with discharge pipe 35, the activity is provided with the sealing plug in the discharge pipe 35, inlet pipe 34 and discharge pipe 35 all rotate with the rotatory axle sleeve 36 that corresponds to be connected, the top of outer jar 31 body is provided with the driver that is connected with inlet pipe 34 transmission, the bottom of outer jar body 31 is provided with the mother liquor export, and when carrying out centrifugal separation to 2,6 dihydroxyacetophenone mother liquor that contains the crystal material, the driver drives 34, interior section of thick bamboo 32, cone bucket 33 and discharge pipe 35 synchronous rotation, 2,6 dihydroxyacetophenone mother liquor that contains the crystal material gets into in the cone bucket 34 through the inlet pipe 34, the separation pipe 33 and the circulation pipe 33, the material clearance groove is provided with in the inlet pipe 33, the circulation pipe 32 and the material outlet is stopped in order to the material groove 32, and the material storage tank 32 is stopped in the material groove, and the top is saved in the material groove 32 is opened through the circulation pipe 37, and the material groove is discharged through the inlet pipe 3, and the material groove 32, and the material groove is discharged through the inlet pipe 3, and the material groove is discharged into the material groove and is discharged.
Preferably, the driver includes driving motor 39, driving pulley 310 and driven pulley 311, driving motor 39 is prior art, according to the direct purchase finished product of power that uses can, driving motor 39 installs in the top of outer jar body 31, driving pulley 310 installs on driving motor 39's output shaft, driving pulley 310 installs on the outer wall of inlet pipe 34, connect through the transmission of drive belt 312 between driving pulley 310 and the driven pulley 311, during the use, driving motor 39 drives driving pulley 310 and rotates, and driving pulley 310 drives driven pulley 311 through drive belt 312 in the pivoted in-process, and driven pulley 311 just can drive inlet pipe 34, interior separating drum 32, awl fill 33 and row material pipe 35 synchronous rotation in the pivoted in-process.
Claims (8)
1. The 2,6 dihydroxyacetyl benzene acylation reaction system is characterized by comprising an acylation reaction kettle (1), a cooling crystallization tank (2) and a centrifugal separation tank (3), wherein a first feed port (11) and a second feed port (12) are formed in the top of the acylation reaction kettle (1), a heating mechanism is arranged on the outer side of the acylation reaction kettle (1), a first stirring mechanism is arranged in the acylation reaction kettle (1), a cooling mechanism is arranged on the outer side of the cooling crystallization tank (2), a second stirring mechanism is arranged in the cooling crystallization tank (2), the bottom of the acylation reaction kettle (1) is communicated with the top of the cooling crystallization tank (2) through a first communicating pipe (4), the bottom of the cooling crystallization tank (2) is communicated with the bottom of the centrifugal separation tank (3) through a second communicating pipe (5), and a conveying pump (6) is arranged on the first communicating pipe (4) and the second communicating pipe (5).
2. A 2,6 dihydroxyacetophenone acylation reaction system according to claim 1, wherein: the heating mechanism comprises a heat-insulating jacket (13) and a heating half pipe (14), the heating half pipe (14) is spirally arranged on the outer wall of the acylation reaction kettle (1), the heat-insulating jacket (13) is arranged on the outer side of the acylation reaction kettle (1) at intervals, a steam inlet (15) communicated with the heating half pipe (14) is arranged at the lower part of the heat-insulating jacket (13), and a steam outlet (16) communicated with the heating half pipe is arranged at the upper part of the heat-insulating jacket (13).
3. A 2,6 dihydroxyacetophenone acylation reaction system according to claim 2, wherein: a plurality of groups of electric heating pipes (17) are uniformly distributed in the space between the heat preservation jacket (13) and the acylation reaction kettle (1).
4. A2, 6 dihydroxyacetophenone acylation reaction system according to claim 1, wherein: the cooling mechanism comprises a cooling jacket (21), a cooling medium inlet (22) and a cooling medium outlet (23), wherein the cooling jacket (21) is arranged on the outer side of the cooling crystallization tank (2) at intervals, the cooling medium inlet (22) is arranged on the lower portion of the cooling jacket (21), the cooling medium outlet (23) is arranged on the upper portion of the cooling jacket (21), and a plurality of baffle plates (24) are arranged in a space between the cooling jacket (21) and the cooling crystallization tank (2) in a vertically inclined and staggered mode.
5. A2, 6-dihydroxyacetophenone acylation reaction system according to claim 4, wherein: the number of the cooling crystallization tanks (2) is 1-3, two adjacent cooling crystallization tanks (2) are communicated through a guide pipe (25), and a conveying pump (6) is arranged on the guide pipe (25).
6. A 2,6 dihydroxyacetophenone acylation reaction system according to claim 1, wherein: the centrifugal separation tank (3) comprises an outer tank body (31) and an inner separation tank (32), a rotary shaft sleeve (36) is correspondingly arranged at the bottom and the top of the outer tank body (31), the inner separation tank (32) is located inside the outer tank body (31), a top plate is arranged at the top of the inner separation tank (32), a cone hopper (33) is arranged at the bottom, a plurality of filtering holes are uniformly distributed and processed on the inner separation tank (32) and the cone hopper (33), a feeding pipe (34) extending to the upper side of the outer tank body (31) is arranged on the top plate, a discharging pipe (35) is arranged at the bottom of the cone hopper (33), a sealing plug is movably arranged in the discharging pipe (35), the feeding pipe (34) and the discharging pipe (35) are both in rotary connection with the corresponding rotary shaft sleeve (36), a driver in transmission connection with the feeding pipe (34) is arranged above the outer tank body (31), and a mother liquor outlet is arranged at the bottom of the outer tank body (31).
7. The 2,6 dihydroxyacetophenone acylation reaction system according to claim 6, wherein: the mother liquor outlet is communicated with the top of the acylation reaction kettle (1) through a circulating pipe (37), and an intermediate storage tank (38) is arranged on the circulating pipe (37).
8. The 2,6 dihydroxyacetophenone acylation reaction system according to claim 6, wherein: the driver comprises a driving motor (39), a driving belt wheel (310) and a driven belt wheel (311), wherein the driving motor (39) is arranged above the outer tank body (31), the driving belt wheel (310) is arranged on an output shaft of the driving motor (39), the driving belt wheel (310) is arranged on the outer wall of the feeding pipe (34), and the driving belt wheel (310) and the driven belt wheel (311) are in transmission connection through a transmission belt (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322771141.0U CN221016077U (en) | 2023-10-17 | 2023-10-17 | 2,6 Dihydroxy acetophenone acylation reaction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322771141.0U CN221016077U (en) | 2023-10-17 | 2023-10-17 | 2,6 Dihydroxy acetophenone acylation reaction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221016077U true CN221016077U (en) | 2024-05-28 |
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ID=91134856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322771141.0U Active CN221016077U (en) | 2023-10-17 | 2023-10-17 | 2,6 Dihydroxy acetophenone acylation reaction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221016077U (en) |
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2023
- 2023-10-17 CN CN202322771141.0U patent/CN221016077U/en active Active
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