CN204509160U - The system of Resource recovery from tolylene diamine pre-treatment tar - Google Patents
The system of Resource recovery from tolylene diamine pre-treatment tar Download PDFInfo
- Publication number
- CN204509160U CN204509160U CN201420799839.1U CN201420799839U CN204509160U CN 204509160 U CN204509160 U CN 204509160U CN 201420799839 U CN201420799839 U CN 201420799839U CN 204509160 U CN204509160 U CN 204509160U
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- CN
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- Prior art keywords
- tar
- reactor
- tda
- whizzer
- rectifying tower
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- VOZKAJLKRJDJLL-UHFFFAOYSA-N tolylenediamine group Chemical group CC1=C(C=C(C=C1)N)N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000011084 recovery Methods 0.000 title claims abstract description 25
- 238000002203 pretreatment Methods 0.000 title claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 15
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 13
- 239000011780 sodium chloride Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 abstract description 19
- 239000007787 solid Substances 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 10
- 239000012043 crude product Substances 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 150000003839 salts Chemical class 0.000 abstract description 7
- 230000003381 solubilizing effect Effects 0.000 abstract description 7
- 239000007795 chemical reaction product Substances 0.000 abstract description 5
- 238000005119 centrifugation Methods 0.000 abstract description 4
- 238000010298 pulverizing process Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000011269 tar Substances 0.000 description 28
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 8
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- 239000011285 coke tar Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
From tolylene diamine pre-treatment tar, the system of Resource recovery, comprising: pulverizer, for receiving tolylene diamine pre-treatment tar and pulverizing solid tar wherein; Reactor, for receive organic solvent and via pulverizer pulverize after tar and make tar and organic solvent generation solubilizing reaction; Whizzer, for the reaction product that receives from reactor and be solid crude salt and mixing liquid by its centrifugation; Saline and alkaline withdrawing can, for receiving the solid crude salt from whizzer; Rectifying tower, for the mixing liquid that receives from whizzer and be organic solvent and TDA crude product by its rectifying separation; Solvent recovery tank, for receiving the organic solvent from rectifying tower; And TDA withdrawing can, for receiving the TDA crude product from rectifying tower.This recovery system can make tar burning amount significantly reduce, and reduces secondary pollution.
Description
Technical field
The utility model relates in general to a kind of resource recovering system, is specifically related to from tolylene diamine pre-treatment tar, reclaim system that is saline and alkaline, the resource such as TDA, Materials Solvents.
Background technology
In the technique that CN 102633651 A proposes, the hydrolysis slurry that tolylene diamine (TDA) gained is prepared in the hydrolysis of tolylene diisocyanate (TDI) coke tar refuse enters scraper evaporator, system produce 50% saline and alkaline, the TDA of 20% and the organic solvent of 20% discharge with the form of tar (also can be described as below " tolylene diamine pre-treatment tar ") through drying machine, increase tar burning amount, not only waste resource but also contaminate environment, and cause system TDA productive rate greatly to reduce simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of recovery system, and it can reclaim saline and alkaline, the resource such as TDA, Materials Solvents from tolylene diamine pre-treatment tar.
According to the system of Resource recovery from tolylene diamine pre-treatment tar of the present utility model, comprising: pulverizer, for receiving tolylene diamine pre-treatment tar and pulverizing solid tar wherein; Reactor, for receive organic solvent and via pulverizer pulverize after tar and make tar and organic solvent generation solubilizing reaction; Whizzer, for the reaction product that receives from reactor and be solid crude salt and mixing liquid by its centrifugation; Saline and alkaline withdrawing can, for receiving the solid crude salt from whizzer; Rectifying tower, for the mixing liquid that receives from whizzer and be organic solvent and TDA crude product by its rectifying separation; Solvent recovery tank, for receiving the organic solvent from rectifying tower; And TDA withdrawing can, for receiving the TDA crude product from rectifying tower.
Wherein, in reactor, whipping appts and temperature-control device can also be provided with, with make tar and organic solvent stir and controlled temperature condition under there is solubilizing reaction.
Reactor directly can be connected to receive the tar after pulverizing via pulverizer by spiral conveyer with pulverizer.
Whizzer directly can be communicated with the bottom of reactor with the reaction product received from reactor by transport pipe.
Rectifying tower directly can be communicated with whizzer fluid with the mixing liquid received from whizzer by pipeline.
Solvent recovery tank directly can be communicated with the top exit of rectifying tower with the organic solvent received from rectifying tower by pipeline.
TDA withdrawing can directly can be communicated with the outlet at bottom of rectifying tower with the TDA crude product received from rectifying tower by pipeline.
Withdrawing can also by pipeline directly with reactor fluid the organic solvent recirculation is communicated with will wherein reclaim send in reactor and tar generation solubilizing reaction.
Adopt recovery system of the present utility model, tar burning amount can be made significantly to reduce (reducing about 90%), reduce secondary pollution.Can also greatly improve TDA systematic yield in addition.Recovered solvent can also use in recovery system of the present utility model in recirculation.Reclaim saline and alkaline then can TDI coke tar refuse hydrolysis preparation TDA time recycling, the raw material alkali of about 80% can be replaced, thus reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of recovery system of the present utility model.
Embodiment
Recovery system of the present utility model is described in detail below in conjunction with accompanying drawing.It will be appreciated by those skilled in the art that embodiment described below is just for explaining the utility model, not for making any restriction to it.
See Fig. 1, which schematically illustrate according to recovery system of the present utility model, it mainly comprises pulverizer 1, reactor 3, whizzer 4, saline and alkaline withdrawing can 5, rectifying tower 6, solvent recovery tank 7 and TDA withdrawing can 8.
Tolylene diisocyanate (TDI) coke tar refuse is hydrolyzed the tar of discharging after the hydrolysis slurry preparing tolylene diamine (TDA) gained enters scraper evaporator and is mainly solid tar form, and can be described as mentioned above " tolylene diamine pre-treatment tar ".The concrete technology utilizing TDI to be hydrolyzed preparation TDA see such as CN 102633651 A (at this to introduce the document see mode), therefore no longer can describe in detail.Pulverizer 1 is for receiving tolylene diamine pre-treatment tar and pulverizing solid tar wherein.Pulverizer 1 is mainly used in solid tar to be ground into particle tar or tar powder.
Reactor 3 for receive any suitable organic solvent (or being called as previously mentioned " Materials Solvents ") and via pulverizer 1 pulverize after tar and make tar and organic solvent generation solubilizing reaction.Only exemplarily, illustrated reactor 3 is directly connected with pulverizer by spiral conveyer 2.The tar powder that pulverizer 1 can be discharged by spiral conveyer 2 sends into reactor 3.Reactor 3 can be any suitable type such as paddle reactor or be provided with the reactor of agitator, and wherein can also be provided with temperature-control device (specifically not showing) etc.After tar powder enters reactor 3, under stirring and certain temperature, itself and organic solvent is made fully solubilizing reaction to occur.
Whizzer 4 is for the reaction product that receives from reactor 3 and be solid crude salt and mixing liquid by its centrifugation.In the embodiment shown, whizzer 4 is directly communicated with the bottom of reactor 3 with the reaction product received from reactor 3 by transport pipe.The solid crude salt that centrifugation goes out enters saline and alkaline withdrawing can 5, and mixing liquid then enters rectifying tower 6.
Saline and alkaline withdrawing can 5 is for receiving the solid crude salt from whizzer 4.In the embodiment shown, saline and alkaline withdrawing can 5 is also directly connected with whizzer 4 by pipeline.
Rectifying tower 6 is for receiving mixing liquid from whizzer 4 and be (lightweight) organic solvent and (heavy) TDA crude product by its rectifying separation.In the embodiment shown, rectifying tower 6 is directly communicated with whizzer 4 fluid with the mixing liquid received from whizzer 4 by pipeline.
Solvent recovery tank 7 is for receiving the organic solvent from rectifying tower 6.In the embodiment shown, solvent recovery tank 7 is directly communicated with the top exit of rectifying tower 6 with the organic solvent received from rectifying tower 6 by pipeline.
TDA withdrawing can 8 is for receiving the TDA crude product from rectifying tower 6.In the embodiment shown, TDA withdrawing can 8 is directly communicated with the outlet at bottom of rectifying tower 6 with the TDA crude product received from rectifying tower by pipeline.Isolated TDA crude product can enter in the process system of TDI coke tar refuse hydrolysis preparation TDA subsequently by further separating-purifying again.
Solid in saline and alkaline withdrawing can 5 is saline and alkaline can be recycled utilization in the process from TDI coke tar refuse hydrolysis preparation TDA.
The liquid solvent reclaimed in solvent recovery tank 7 can recycling in recovery system of the present utility model.In the embodiment shown, solvent recovery tank 7 also is directly sent in reactor 3 to come and tar generation solubilizing reaction with the organic solvent recirculation be communicated with will wherein reclaim of reactor 3 fluid by pipeline (diagram dotted line).
Claims (3)
1. the system of Resource recovery from tolylene diamine pre-treatment tar, is characterized in that, comprising:
Pulverizer;
Reactor, is directly connected with pulverizer by spiral conveyer;
Whizzer, is directly communicated with the bottom of reactor by transport pipe;
Saline and alkaline withdrawing can, is directly connected with whizzer by pipeline;
Rectifying tower, is directly communicated with whizzer fluid by pipeline;
Solvent recovery tank, is directly communicated with the top exit of rectifying tower by pipeline; And
TDA withdrawing can, is directly communicated with the outlet at bottom of rectifying tower by pipeline.
2. the system of Resource recovery from tolylene diamine pre-treatment tar according to claim 1, is characterized in that: be also provided with whipping appts and temperature-control device in described reactor.
3. the system of Resource recovery from tolylene diamine pre-treatment tar according to claim 1, is characterized in that: solvent recovery tank is also directly communicated with reactor fluid by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799839.1U CN204509160U (en) | 2014-12-16 | 2014-12-16 | The system of Resource recovery from tolylene diamine pre-treatment tar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420799839.1U CN204509160U (en) | 2014-12-16 | 2014-12-16 | The system of Resource recovery from tolylene diamine pre-treatment tar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204509160U true CN204509160U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420799839.1U Active CN204509160U (en) | 2014-12-16 | 2014-12-16 | The system of Resource recovery from tolylene diamine pre-treatment tar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204509160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108047051A (en) * | 2017-12-12 | 2018-05-18 | 万华化学集团股份有限公司 | Compound purposes and method of the molecular sieve catalyst for catalytic cracking processing aniline tar |
| CN113599856A (en) * | 2021-08-11 | 2021-11-05 | 安徽晟捷新能源科技有限公司 | Equipment for recycling tar at bottom of NMP (N-methyl pyrrolidone) rectifying tower |
-
2014
- 2014-12-16 CN CN201420799839.1U patent/CN204509160U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108047051A (en) * | 2017-12-12 | 2018-05-18 | 万华化学集团股份有限公司 | Compound purposes and method of the molecular sieve catalyst for catalytic cracking processing aniline tar |
| CN108047051B (en) * | 2017-12-12 | 2020-05-08 | 万华化学集团股份有限公司 | Application and method of compound molecular sieve catalyst in catalytic cracking treatment of aniline tar |
| CN113599856A (en) * | 2021-08-11 | 2021-11-05 | 安徽晟捷新能源科技有限公司 | Equipment for recycling tar at bottom of NMP (N-methyl pyrrolidone) rectifying tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: System for retrieve the resource in the follow toluene diamine preliminary treatment tar Effective date of registration: 20161215 Granted publication date: 20150729 Pledgee: Kang Run (Shenzhen) International Finance Leasing Co.,Ltd. Pledgor: HEBEI FENGYUAN GREEN TECHNOLOGY Inc. Registration number: 2016990001112 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201217 Granted publication date: 20150729 Pledgee: Kang Run (Shenzhen) International Finance Leasing Co.,Ltd. Pledgor: HEBEI FENGYUAN GREEN TECHNOLOGY Inc. Registration number: 2016990001112 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 010000 West Wanda Sales Center, Genghis Khan West Street, Huimin District, Hohhot City, Inner Mongolia Autonomous Region Patentee after: Antai Fengyuan Environmental Protection Technology (Inner Mongolia) Group Co.,Ltd. Country or region after: China Address before: 010000 West Wanda Sales Center, Genghis Khan West Street, Huimin District, Hohhot City, Inner Mongolia Autonomous Region Patentee before: Hebei Fengyuan Environmental Protection Technology Group Co.,Ltd. Country or region before: China Address after: 010000 West Wanda Sales Center, Genghis Khan West Street, Huimin District, Hohhot City, Inner Mongolia Autonomous Region Patentee after: Hebei Fengyuan Environmental Protection Technology Group Co.,Ltd. Country or region after: China Address before: 061100 Zhongjie Industrial Park Planning No.1 Road South, Cangzhou City, Hebei Province Patentee before: HEBEI FENGYUAN GREEN TECHNOLOGY Inc. Country or region before: China |
|
| CP03 | Change of name, title or address |