CN202590799U - Sulfonation reaction still for producing chlorotoluene (CLT) acid - Google Patents
Sulfonation reaction still for producing chlorotoluene (CLT) acid Download PDFInfo
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- CN202590799U CN202590799U CN201220278098.3U CN201220278098U CN202590799U CN 202590799 U CN202590799 U CN 202590799U CN 201220278098 U CN201220278098 U CN 201220278098U CN 202590799 U CN202590799 U CN 202590799U
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- reaction still
- clt
- acid
- thermometer boss
- pipe
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Abstract
The utility model discloses a sulfonation reaction still for producing chlorotoluene (CLT) acid. The sulfonation reaction still comprises a reaction still body, wherein a raw material inlet is arranged on the top of the reaction still body and a material outlet is arranged at the bottom of the reaction still body. A stirring shaft and a stirring device are perpendicularly arranged in the reaction still body, and the stirring shaft and the stirring device are driven by a power device. A thermometer well is arranged in an inner cavity of the reaction still body, and a baffling component is arranged on one side of the thermometer well. The sulfonation reaction still relates to the field of CLT production technology, is capable of improving mixing effect of materials and reaction efficiency.
Description
Technical field
The utility model relates to CLT acid production technical field, relates in particular to a kind of sulfonating reaction still of CLT acid production usefulness.
Background technology
CLT acid, chemical name 2-amino-4-methyl-5-chloro benzene sulfonic acid.CLT acid is a kind of white or blush powder, and is water insoluble.CLT acid is a kind of important organic red pigment intermediate, but color lake organic pigments such as the red 36b of bright red, the new treasured of synthetic plastic, bronze red c.This pigment is widely used in paint, coating, colored ink, rubber and coloring plastic etc.CLT acid is that world's consumption last year is crossed one of organic intermediate of ten thousand tons.
The synthetic route of CLT acid has a lot, mainly contains according to the raw material difference: toluene sulfonation route, ortho-chlorotolu'ene bromination route, the nitrated route of ortho-chlorotolu'ene, meta-xylene route, meta-aminotoluene route and paratoluensulfonyl chloride route etc.Mainly adopt the toluene sulfonation route at present on the domestic industry.Toluene sulfonation route production process successively through superchlorination, nitrated, neutralization, obtains through acid out after the reduction for utilizing toluene sulfonation in the concentrated sulfuric acid then.During commercial production, toluene is used sulfuric acid sulfonation, add sulfuric acid after the sulfonation and feed chlorinated with chlorine, carry out nitratedly again with nitric acid, put into a large amount of saturated aqueous common salts then and saltout, filter, washing obtains 2-nitro-4-methyl-5-chlorobenzenesulfonic acid.Will be wherein and, reduction, filtration, acidifying, filtration, drying, obtain finished product CLT acid.Advantages such as this is the industrial method that generally adopts at present both at home and abroad, and it is rich and easy to get that this method has raw material sources, and technical maturity, cost are lower; But this route reaction route is long, operation is many, and the reaction isomers is many, and total recovery has only about 50%, adds that the course of reaction quantity of three wastes is big, is difficult to handle, and causes this method to can not get bigger development.
In the sulfonation operation, the sulfonated liquid proportion after toluene and the strong sulfuric acid response is bigger, and the density during near terminal point reaches 1500kg/m3.Under the stirring action of agitator, mixing is to a certain degree arranged, and also sulfonating reaction still use gate stirrer, can play stirring action preferably, the toluene and the concentrated sulfuric acid rotate more with gate stirrer, be unfavorable for the mixing of the toluene and the concentrated sulfuric acid.
The utility model content
The utility model technical problem to be solved is: to the deficiency that prior art exists, a kind of sulfonating reaction still that is used for the sour production of CLT that can increase the mixing of materials effect, improve reaction efficiency is provided.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
Be used for the sulfonating reaction still that CLT acid is produced; Comprise kettle; Said kettle top and bottom are respectively equipped with material inlet and material outlet; Vertically be provided with the shaft and the agitator that are driven by power set in the said kettle, said kettle inner chamber is provided with thermometer boss, and said thermometer boss one side is provided with the baffling member.
Wherein, said baffling member comprises the upward pipe that the end is connected with said thermometer boss one side respectively and manages down.
As a kind of scheme, said thermometer boss and baffling member are integrated enamel thermometer boss and enamel baffling member.
As a kind of improvement, said upward pipe and following pipe are 75-105 degree angle with said thermometer boss respectively and are provided with.
Owing to adopted technique scheme, the beneficial effect of the utility model is:
1. thermometer boss one side of the utility model is provided with the baffling member; The baffling member comprises the upward pipe that the end is connected with said thermometer boss one side respectively and manages down.Adopt this structure, the sulfonating reaction still toluene and the concentrated sulfuric acid can be run into the baffling member with the agitator axial flow time, and the baffling member comprises pipe and manages down; The toluene and the concentrated sulfuric acid are run into upward pipe and following pipe meeting turbulization; Increased mixing effect, made toluene and concentrated sulfuric acid better mixing, thereby reaction efficiency is improved; After using integral temperature indicator and baffling member, reaction efficiency has improved 3%.
2. thermometer boss of the utility model and baffling member are integrated enamel thermometer boss and enamel baffling member.The convenient processing of integrated thermometer boss and baffling member, firmness is higher, and connectionless point, has greatly reduced the extent of corrosion of the toluene and the concentrated sulfuric acid.Enamel thermometer boss and enamel baffling member acid-alkali-corrosive-resisting.Can prolong service life of equipment, and reduce side reaction, improve the quality of product.
3. upward pipe of the utility model and following pipe are the setting of 75-105 degree angle with said thermometer boss respectively; Has certain angle; Pipe and pipe length in the axial direction down on can the prolongation of decrement, and when toluene and concentrated sulfuric acid axial rotation can with on pipe and down pipe better collision angle is arranged, the increase mixing effect; Make toluene and concentrated sulfuric acid mixed effect better, reaction efficiency is higher.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment,
Among the figure: 1. kettle, 11. material inlets, 12. material outlets, 13. gate stirrers, 2. enamel thermometer boss, 3. enamel baffling member, pipe on 31., 32. times pipes.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Shown in accompanying drawing; Be used for the sulfonating reaction still that CLT acid is produced; Comprise kettle 1, kettle 1 top and bottom are respectively equipped with material inlet 11 and material outlet 12, vertically are provided with in the kettle 1 by motor-driven shaft and gate stirrer 13; Kettle 1 inner chamber is provided with integrated enamel thermometer boss 2 and enamel baffling member 3, and enamel baffling member 3 comprises the upward pipe 31 and following pipe 32 that the end is connected with enamel thermometer boss 2 one sides respectively.Last pipe 31 is 75 degree angles with enamel thermometer boss 2 respectively with following pipe 32 and is provided with.
Claims (4)
1. be used for the sulfonating reaction still that CLT acid is produced; Comprise kettle; Said kettle top and bottom are respectively equipped with material inlet and material outlet; Vertically be provided with the shaft and the agitator that are driven by power set in the said kettle, said kettle inner chamber is provided with thermometer boss, it is characterized in that: said thermometer boss one side is provided with the baffling member.
2. the sulfonating reaction still that is used for CLT acid production as claimed in claim 1 is characterized in that: said baffling member comprises upward pipe and the following pipe that the end is connected with said thermometer boss one side respectively.
According to claim 1 or claim 2 be used for the sulfonating reaction still that CLT acid is produced, it is characterized in that: said thermometer boss and baffling member are integrated enamel thermometer boss and enamel baffling member.
4. the sulfonating reaction still that is used for CLT acid production as claimed in claim 3 is characterized in that: said upward pipe and following pipe are the setting of 75-105 degree angle with said thermometer boss respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220278098.3U CN202590799U (en) | 2012-06-13 | 2012-06-13 | Sulfonation reaction still for producing chlorotoluene (CLT) acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220278098.3U CN202590799U (en) | 2012-06-13 | 2012-06-13 | Sulfonation reaction still for producing chlorotoluene (CLT) acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202590799U true CN202590799U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220278098.3U Expired - Fee Related CN202590799U (en) | 2012-06-13 | 2012-06-13 | Sulfonation reaction still for producing chlorotoluene (CLT) acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202590799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438295A (en) * | 2018-11-29 | 2019-03-08 | 浙江秦燕科技股份有限公司 | The method of successive reaction preparation CLT acid sulfonated bodies |
-
2012
- 2012-06-13 CN CN201220278098.3U patent/CN202590799U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109438295A (en) * | 2018-11-29 | 2019-03-08 | 浙江秦燕科技股份有限公司 | The method of successive reaction preparation CLT acid sulfonated bodies |
| CN109438295B (en) * | 2018-11-29 | 2021-05-28 | 浙江秦燕科技股份有限公司 | Method for preparing CLT acid sulfonate by continuous reaction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130613 |