CN211705937U - High-temperature distillation kettle for chemical industry - Google Patents
High-temperature distillation kettle for chemical industry Download PDFInfo
- Publication number
- CN211705937U CN211705937U CN201922409317.1U CN201922409317U CN211705937U CN 211705937 U CN211705937 U CN 211705937U CN 201922409317 U CN201922409317 U CN 201922409317U CN 211705937 U CN211705937 U CN 211705937U
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- China
- Prior art keywords
- storehouse
- distillation
- heat preservation
- fixed mounting
- pipe
- 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.)
- Expired - Fee Related
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- 238000004821 distillation Methods 0.000 title claims abstract description 66
- 239000000126 substance Substances 0.000 title claims abstract description 15
- 238000004321 preservation Methods 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims description 22
- 238000009833 condensation Methods 0.000 claims description 21
- 230000005494 condensation Effects 0.000 claims description 21
- 238000001704 evaporation Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- BASMANVIUSSIIM-UHFFFAOYSA-N 1-chloro-2-(chloromethyl)benzene Chemical compound ClCC1=CC=CC=C1Cl BASMANVIUSSIIM-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- RNVCVTLRINQCPJ-UHFFFAOYSA-N o-toluidine Chemical compound CC1=CC=CC=C1N RNVCVTLRINQCPJ-UHFFFAOYSA-N 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- IBSQPLPBRSHTTG-UHFFFAOYSA-N 1-chloro-2-methylbenzene Chemical compound CC1=CC=CC=C1Cl IBSQPLPBRSHTTG-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000003889 chemical engineering Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- DSPKXCZGSQZMRS-UHFFFAOYSA-N C(C1=CC=CC=C1)Cl.[Cl] Chemical compound C(C1=CC=CC=C1)Cl.[Cl] DSPKXCZGSQZMRS-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000006193 diazotization reaction Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- MBYQPPXEXWRMQC-UHFFFAOYSA-N (2-chlorophenyl)methanol Chemical compound OCC1=CC=CC=C1Cl MBYQPPXEXWRMQC-UHFFFAOYSA-N 0.000 description 1
- 125000006282 2-chlorobenzyl group Chemical group [H]C1=C([H])C(Cl)=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 239000005499 Clomazone Substances 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- KIEDNEWSYUYDSN-UHFFFAOYSA-N clomazone Chemical compound O=C1C(C)(C)CON1CC1=CC=CC=C1Cl KIEDNEWSYUYDSN-UHFFFAOYSA-N 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- 229940045803 cuprous chloride Drugs 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000979 synthetic dye Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to an o-chloro benzyl chloride production technical field just discloses a high temperature distillation cauldron for chemical industry, including the heat preservation storehouse, the bottom fixed mounting in heat preservation storehouse has the support frame, the inside fixed mounting in heat preservation storehouse has the distillation storehouse that extends to heat preservation storehouse top, the inner wall in distillation storehouse inlays and is equipped with heating device, the bottom intercommunication in distillation storehouse has the discharging pipe that runs through the heat preservation storehouse bottom, the bottom intercommunication in heat preservation storehouse has the delivery pipe that is located the discharging pipe right side, the right side intercommunication in heat preservation storehouse has the emission pipe, the top right side fixed mounting in distillation storehouse has the connecting piece, the left side fixed mounting of connecting piece has the cang gai that is located the distillation storehouse top. This high temperature stills for chemical industry can carry out recycle to exhaust steam heat, reduces heating required time and energy resource consumption, reduces the required cost of production, and uses the back inside and clear up the operation easily, and the maintainer of being convenient for clears up, avoids producing the influence to follow-up production.
Description
Technical Field
The utility model relates to an o chlorine benzyl chloride production technical field specifically is a high temperature distillation cauldron for chemical industry.
Background
The o-chlorobenzyl chloride is used for producing o-chlorobenzyl chloride, o-chlorobenzyl alcohol, synthetic dye, pharmacy and the like, is an intermediate of herbicide clomazone, is also an intermediate of medical enzyme-inhibiting medicament, is an organic synthetic raw material, is used for preparing excitant drug enzyme-inhibiting medicament and the like in the medical industry, is obtained by taking o-toluidine as a raw material in the industry, performing diazotization replacement and chlorination, mixing the o-toluidine, hydrochloric acid and water, cooling to 0-5 ℃, dripping sodium nitrite into the mixture, performing diazotization reaction, pouring cuprous chloride into the mixture at 0 ℃ under rapid stirring, naturally heating to 20-25 ℃, finally heating to 60-65 ℃, cooling after heat preservation for 20min, standing, layering, washing and distilling to obtain o-chlorotoluene, mixing the o-chlorotoluene with phosphorus trichloride, and introducing chlorine at 140 ℃ to obtain the o-chlorobenzyl chloride; the preparation method comprises the steps of mixing o-chlorotoluene and phosphorus trichloride in a reactor, introducing chlorine at 130-140 ℃ until the relative density of a reaction solution reaches 1.20-1.22, and then fractionating to obtain the product.
Traditional high temperature stills is used in production of o chloro benzyl, its exhaust steam temperature scatters and disappears, unable recycle, leads to higher energy extravagant, has increased manufacturing cost, and inside the washing of being not convenient for after using, influences follow-up processing operation environment, has increased the maintainer burden, so has proposed a high temperature stills for chemical industry and has solved the above-mentioned problem of proposing.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a high temperature distillation cauldron for chemical industry possesses advantages such as heat recovery, has solved traditional high temperature distillation cauldron for production of o chloro benzyl chloride, and its exhaust steam temperature scatters and disappears, and unable recycle leads to higher energy extravagant, has increased manufacturing cost, and uses the inside washing of being not convenient for of back, influences follow-up processing operation environment, has increased the problem of maintainer burden.
(II) technical scheme
For the purpose of realizing above-mentioned heat recovery, the utility model provides a following technical scheme: a high-temperature distillation kettle for chemical engineering comprises a heat preservation bin, wherein a support frame is fixedly arranged at the bottom of the heat preservation bin, a distillation bin extending to the top of the heat preservation bin is fixedly arranged in the heat preservation bin, a heating device is embedded in the inner wall of the distillation bin, a discharging pipe penetrating through the bottom of the heat preservation bin is communicated with the bottom of the distillation bin, a discharging pipe positioned on the right side of the discharging pipe is communicated with the bottom of the heat preservation bin, a discharging pipe is communicated with the right side of the discharging pipe, a connecting piece is fixedly arranged on the right side of the top end of the distillation bin, a bin cover positioned at the top of the distillation bin is fixedly arranged on the left side of the connecting piece, a fixing plate is fixedly arranged on each of the bin cover and the left side of the distillation bin, a sealing rod penetrating through two fixing plates is inserted into the top of the fixing plate at the top, the top intercommunication of cang gai has the evaporating pipe, the top fixed mounting of evaporating pipe has a condensation section of thick bamboo, the left end bottom intercommunication of condensation section of thick bamboo has the pipe of sending into that runs through the cang gai and extend to distillation storehouse inside, the top intercommunication of condensation section of thick bamboo has the inlet pipe, the left side fixed mounting of condensation section of thick bamboo has a discharge pipe.
Preferably, the heating device comprises an electric heating tube and a heat conducting plate, the electric heating tube is fixedly installed in the heat conducting plate, and the sealing rod is movably connected with the top fixing plate and is in threaded connection with the bottom fixing plate.
Preferably, the bottom of the heat preservation cabin is fixedly provided with a control valve communicated with the discharge pipe, and the bottom of the support frame is fixedly provided with four foot pads.
Preferably, the output fixed mounting of motor has the dwang, dwang and stirring frame fixed connection, motor, stirring frame and dwang are the slope setting.
Preferably, the bin cover is hinged with the distillation bin through a connecting piece, and the maximum distance from the connecting piece to the stirring frame is smaller than the distance from the connecting piece to the left side of the top end of the inner wall of the distillation bin.
Preferably, the inside fixed mounting of condensation section of thick bamboo has both ends respectively with the heat transfer coil pipe of discharge pipe and evaporating pipe intercommunication, the condensation section of thick bamboo is the slope setting.
(III) advantageous effects
Compared with the prior art, the utility model provides a high temperature distillation cauldron for chemical industry possesses following beneficial effect:
the high-temperature distillation kettle for chemical engineering is used for filling heat preservation media into a heat preservation bin through an exhaust pipe, adding a solution to be distilled into the distillation bin through an inlet pipe, a condensation cylinder and an inlet pipe, heating the solution in the distillation bin by a heating device, simultaneously stirring the solution by driving a stirring frame to continuously rotate by a motor, uniformly heating and mixing the solution, ensuring that the concentration of the solution at each part has small difference, enabling the evaporated steam to enter the evaporation pipe for heat exchange with the entering solution, discharging the condensed steam from a discharge pipe, enabling the solution subsequently entering to absorb and preheat the discharged heat, reducing the energy required for heating, and when the inside of the distillation bin needs to be cleaned, rotating a sealing rod to enable the sealing rod to leave a bottom fixing plate, opening a bin cover through a connecting piece in a rotating manner, enabling the stirring frame and the inlet pipe to leave the distillation bin, can be to the inside operation of clearing up in distillation storehouse, this high temperature distillation cauldron simple structure is reasonable, can carry out recycle to exhaust steam heat, reduces heating required time and energy resource consumption, reduces the required cost of production, and uses the back inside operation of clearing up easily, and the maintainer of being convenient for clears up, avoids influencing follow-up production.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at the position A of the present invention;
fig. 3 is a front view of the present invention.
In the figure: 1 heat preservation bin, 2 support frames, 3 distillation bins, 4 heating devices, 5 discharge pipes, 6 discharge pipes, 7 discharge pipes, 8 connecting pieces, 9 bin covers, 10 fixing plates, 11 sealing rods, 12 motors, 13 stirring frames, 14 evaporation pipes, 15 condensation cylinders, 16 feeding pipes, 17 feeding pipes and 18 discharge pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, a high temperature distillation kettle for chemical industry comprises a heat preservation bin 1, a support frame 2 is fixedly installed at the bottom of the heat preservation bin 1, a distillation bin 3 extending to the top of the heat preservation bin 1 is fixedly installed inside the heat preservation bin 1, a heating device 4 is embedded in the inner wall of the distillation bin 3, the heating device 4 comprises an electric heating tube and a heat conducting plate, the electric heating tube is fixedly installed inside the heat conducting plate, a discharge tube 5 penetrating through the bottom of the heat preservation bin 1 is communicated with the bottom of the distillation bin 3, a discharge tube 6 positioned on the right side of the discharge tube 5 is communicated with the bottom of the heat preservation bin 1, a control valve communicated with the discharge tube 6 is fixedly installed at the bottom of the heat preservation bin 1, four cushion feet are fixedly installed at the bottom of the support frame 2, a discharge tube 7 is communicated with the right side of the heat preservation bin 1, a connecting piece 8 is fixedly installed on, a fixed plate 10 is fixedly arranged on the left sides of a bin cover 9 and a distillation bin 3, a sealing rod 11 is movably connected with a top fixed plate 10 and is in threaded connection with a bottom fixed plate 10, a sealing rod 11 penetrating through the two fixed plates 10 is inserted into the top of the top fixed plate 10, a motor 12 is fixedly arranged on the top of the bin cover 9, a stirring frame 13 positioned in the distillation bin 3 is fixedly arranged at the output end of the motor 12, a rotating rod is fixedly arranged at the output end of the motor 12 and is fixedly connected with the stirring frame 13, the motor 12, the stirring frame 13 and the rotating rod are obliquely arranged, the bin cover 9 is hinged with the distillation bin 3 through a connecting piece 8, the maximum distance from the connecting piece 8 to the stirring frame 13 is smaller than the distance from the connecting piece 8 to the left side of the top end of the inner wall of the distillation bin 3, an evaporation tube 14 is communicated with the top of the bin cover 9, a condensation tube 15 is fixedly arranged on the top of the evaporation tube, the top of the condensation cylinder 15 is communicated with a feeding pipe 17, the left side of the condensation cylinder 15 is fixedly provided with a discharging pipe 18, the inside of the condensation cylinder 15 is fixedly provided with a heat exchange coil pipe, the two ends of the heat exchange coil pipe are respectively communicated with the discharging pipe 18 and the evaporating pipe 14, the condensation cylinder 15 is obliquely arranged, when in use, firstly, a heat preservation medium is filled into the heat preservation bin 1 through the discharging pipe 7, then, a solution to be distilled is added into the distillation bin 3 through the feeding pipe 17, the condensation cylinder 15 and the feeding pipe 16, the solution is heated by the heating device 4 in the distillation bin 3, meanwhile, the motor 12 drives the stirring frame 13 to continuously rotate to stir the solution, so that the solution is uniformly heated and mixed, the concentration difference of the solution at each part is small, the evaporated steam enters the inside of the evaporating pipe 14 to exchange heat with the entering solution, the steam is discharged through the discharging pipe 18 after being condensed, and the subsequent entering solution can absorb the, reduce the required energy of heating, when needs clear up the operation to the inside of distillation storehouse 3, rotatable sealing rod 11 makes it leave bottom fixed plate 10, can open storehouse cover 9 through the rotation of connecting piece 8, stirring frame 13 all leaves distillation storehouse 3 with sending into pipe 16 this moment, can clear up the operation to distillation storehouse 3 inside, this high temperature distillation cauldron simple structure is reasonable, can carry out recycle to exhaust steam heat, reduce heating required time and energy resource consumption, reduce the required cost of production, and use the back inside and clear up the operation easily, the maintainer of being convenient for clears up, avoid influencing subsequent production.
To sum up, when the high-temperature distillation kettle for chemical engineering is used, firstly, a heat preservation medium is filled into the heat preservation bin 1 through the discharge pipe 7, then a solution to be distilled is added into the distillation bin 3 through the feed pipe 17, the condensation cylinder 15 and the feed pipe 16, the solution is heated by the heating device 4 in the distillation bin 3, meanwhile, the motor 12 drives the stirring frame 13 to continuously rotate to stir the solution, so that the solution is uniformly heated and mixed, the concentration difference of the solution at each part is small, evaporated steam enters the evaporation pipe 14 to exchange heat with the entering solution, the steam is discharged through the discharge pipe 18 after being condensed, the subsequent entering solution can absorb and preheat the discharged heat, the energy required by heating is reduced, when the interior of the distillation bin 3 needs to be cleaned, the sealing rod 11 can be rotated to be away from the bottom fixing plate 10, can open storehouse lid 9 through the rotation of connecting piece 8, stirring frame 13 all leaves distillation storehouse 3 with sending into pipe 16 this moment, can be to the inside operation of clearing up in distillation storehouse 3, this high temperature stills simple structure is reasonable, can carry out recycle to exhaust steam heat, reduce heating required time and energy resource consumption, reduce the required cost of production, and inside the operation of clearing up easily after using, be convenient for maintainer clears up, avoid producing the influence to follow-up production, traditional high temperature stills for production of adjacent chlorine benzyl chloride has been solved, its exhaust steam temperature scatters and disappears, unable recycle, lead to higher energy extravagant, manufacturing cost has been increased, and inside not convenient to wash after using, influence follow-up processing operation environment, the problem of maintainer burden has been increased.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high temperature distillation cauldron for chemical industry, includes heat preservation storehouse (1), its characterized in that: the bottom fixed mounting of heat preservation storehouse (1) has support frame (2), the inside fixed mounting in heat preservation storehouse (1) has distillation storehouse (3) that extends to heat preservation storehouse (1) top, the inner wall in distillation storehouse (3) inlays and is equipped with heating device (4), the bottom intercommunication in distillation storehouse (3) has discharging pipe (5) that run through heat preservation storehouse (1) bottom, the bottom intercommunication in heat preservation storehouse (1) has delivery pipe (6) that are located discharging pipe (5) right side, the right side intercommunication in heat preservation storehouse (1) has drainage pipe (7), the top right side fixed mounting in distillation storehouse (3) has connecting piece (8), the left side fixed mounting of connecting piece (8) has cang gai (9) that is located distillation storehouse (3) top, cangai (9) and the left side of distillation storehouse (3) all fixed mounting have fixed plate (10), the top cartridge of fixed plate (10) has seal rod (11) that runs through two fixed plates (10), the top fixed mounting of cang gai (9) has motor (12), the output fixed mounting of motor (12) has stirring frame (13) that is located distillation storehouse (3) inside, the top intercommunication of cang gai (9) has evaporating pipe (14), the top fixed mounting of evaporating pipe (14) has condensation cylinder (15), the left end bottom intercommunication of condensation cylinder (15) has and runs through cang gai (9) and extends to distillation storehouse (3) inside pipe (16) of sending into, the top intercommunication of condensation cylinder (15) has inlet pipe (17), the left side fixed mounting of condensation cylinder (15) has discharge pipe (18).
2. The chemical high-temperature distillation kettle according to claim 1, wherein: the heating device (4) comprises an electric heating tube and a heat conducting plate, the electric heating tube is fixedly arranged in the heat conducting plate, and the sealing rod (11) is movably connected with the top fixing plate (10) and is in threaded connection with the bottom fixing plate (10).
3. The chemical high-temperature distillation kettle according to claim 1, wherein: the bottom fixed mounting in heat preservation storehouse (1) has the control valve with delivery pipe (6) intercommunication, the bottom fixed mounting of support frame (2) has the pad foot that quantity is four.
4. The chemical high-temperature distillation kettle according to claim 1, wherein: the output fixed mounting of motor (12) has the dwang, dwang and stirring frame (13) fixed connection, motor (12), stirring frame (13) are the slope setting with the dwang.
5. The chemical high-temperature distillation kettle according to claim 1, wherein: the bin cover (9) is hinged with the distillation bin (3) through a connecting piece (8), and the maximum distance from the connecting piece (8) to the stirring frame (13) is smaller than the distance from the connecting piece (8) to the left side of the top end of the inner wall of the distillation bin (3).
6. The chemical high-temperature distillation kettle according to claim 1, wherein: the inside fixed mounting of condensation section of thick bamboo (15) has both ends respectively with discharge pipe (18) and evaporating pipe (14) the heat transfer coil who communicates, condensation section of thick bamboo (15) are the slope and set up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922409317.1U CN211705937U (en) | 2019-12-28 | 2019-12-28 | High-temperature distillation kettle for chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922409317.1U CN211705937U (en) | 2019-12-28 | 2019-12-28 | High-temperature distillation kettle for chemical industry |
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| Publication Number | Publication Date |
|---|---|
| CN211705937U true CN211705937U (en) | 2020-10-20 |
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|---|---|---|---|
| CN201922409317.1U Expired - Fee Related CN211705937U (en) | 2019-12-28 | 2019-12-28 | High-temperature distillation kettle for chemical industry |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113289364A (en) * | 2021-05-18 | 2021-08-24 | 重庆宏大化工科技有限公司 | Concentration device for hydrogen peroxide production and use method thereof |
| CN113773872A (en) * | 2021-09-30 | 2021-12-10 | 刘哲宇 | Environment-friendly toluene distillation still |
| CN114949897A (en) * | 2022-06-22 | 2022-08-30 | 安徽佳先功能助剂股份有限公司 | Continuous dehydration distillation plant of nylon acid diisobutyl ester |
-
2019
- 2019-12-28 CN CN201922409317.1U patent/CN211705937U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113289364A (en) * | 2021-05-18 | 2021-08-24 | 重庆宏大化工科技有限公司 | Concentration device for hydrogen peroxide production and use method thereof |
| CN113773872A (en) * | 2021-09-30 | 2021-12-10 | 刘哲宇 | Environment-friendly toluene distillation still |
| CN114949897A (en) * | 2022-06-22 | 2022-08-30 | 安徽佳先功能助剂股份有限公司 | Continuous dehydration distillation plant of nylon acid diisobutyl ester |
| CN114949897B (en) * | 2022-06-22 | 2023-06-27 | 安徽佳先功能助剂股份有限公司 | Continuous dehydration distillation device for diisobutyl nylon acid |
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Granted publication date: 20201020 |