CN101028932A - Method for purifying coked thiamine - Google Patents
Method for purifying coked thiamine Download PDFInfo
- Publication number
- CN101028932A CN101028932A CN 200610020408 CN200610020408A CN101028932A CN 101028932 A CN101028932 A CN 101028932A CN 200610020408 CN200610020408 CN 200610020408 CN 200610020408 A CN200610020408 A CN 200610020408A CN 101028932 A CN101028932 A CN 101028932A
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- China
- Prior art keywords
- coked
- coked thiamine
- thiamine
- purifying
- mother liquor
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- 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.)
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- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Abstract
A process for purifying the coked ammonium sulfate includes such steps as preparing the mother liquid of coked ammonium sulfate, filtering by inorganic ceramic membrane with micron pores, and preparing coked ammonium sulfate.
Description
Technical field
The present invention relates to a kind of purification method of purification of coked thiamine.
Background technology
In the Coal Chemical Industry industry, utilize the coking by product as the coked thiamine of raw material production usually because of purity does not reach the requirement of industrial sulphur ammonium quality standard, and make its market price and use range be subjected to bigger restriction.Study carefully the reason that it influences coked thiamine product purity, just be to contain in the employed raw materials for production organic impuritys such as tar and coke tar refuse.In the prior art, existing several different methods can be carried out the purifying treatment of organic impurity to the raw material of producing coked thiamine, legal etc. as commonly used combustion method, hot polymerization, the purification purification processes but these existing purifying treatment methods all can not become more meticulous to the organic impurity in the raw material, still contain the fine organic impurity that is difficult to Ex-all in the raw material, affect the further raising of coked thiamine product quality.
Summary of the invention
For further improving the purity of coked thiamine product, reach the purpose of effective raising coked thiamine product quality, the present invention proposes following technical solution:
A kind of method for purifying coked thiamine, its step comprises: make the coked thiamine mother liquor according to the coked thiamine production technique earlier, adopt the ceramic membrane filter device that the coking ammonium sulfate liquor is filtered then, residual fine organic impurity in the filtering mother liquor is made the coked thiamine mother liquor after filtering the coked thiamine product of high cleanliness according to existing evaporation concentration, crystallization separation process.
Further be that the ceramic membrane that the ceramic membrane filter device adopts is the inorganic ceramic film of 1～5 micron of membrane pore size.
Owing to adopted the inorganic ceramic filtering membrane of micron pore size that the coking ammonium sulfate liquor is carried out filtration treatment, fine organic impurity residual in the coked thiamine mother liquor is able to effective removal, can produce high-quality coked thiamine product with the coked thiamine mother liquor after this purification processes.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment
With making the coked thiamine mother liquor through the coked thiamine raw materials for production after the purifying treatment, the coked thiamine mother liquor is sent into sulphur ammonium dissolving tank, the secondary steam mixed dissolution that produces with crystallization raffinate, evaporation concentration is approximate saturated ammonium sulfate liquor, again ammonium sulfate liquor is pumped in the strainer that inorganic ceramic film is housed and filter, should keep certain pressure in the strainer, to guarantee the adsorption filtration effect of ceramic membrane filter device, filtering clear liquid is sent into evaporation concentration device, after condensing crystal, centrifugation, can obtain high-quality industrial sulphur ammonium.
Claims (2)
1, a kind of method for purifying coked thiamine, its processing step comprises: make the coked thiamine mother liquor according to the coked thiamine production technique, it is characterized in that: adopt the ceramic membrane filter device that the coking ammonium sulfate liquor is filtered, residual fine organic impurity in the filtering coked thiamine mother liquor is used to produce the coked thiamine product with the coked thiamine mother liquor after filtering.
2, method for purifying coked thiamine according to claim 1 is characterized in that: the used ceramic membrane of described ceramic membrane filter device is the inorganic ceramic film in 1～5 micron in aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610020408 CN101028932A (en) | 2006-03-02 | 2006-03-02 | Method for purifying coked thiamine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610020408 CN101028932A (en) | 2006-03-02 | 2006-03-02 | Method for purifying coked thiamine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101028932A true CN101028932A (en) | 2007-09-05 |
Family
ID=38714503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610020408 Pending CN101028932A (en) | 2006-03-02 | 2006-03-02 | Method for purifying coked thiamine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101028932A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951657A (en) * | 2012-12-10 | 2013-03-06 | 张卫东 | Process and equipment for producing ammonium sulfate by taking sulfur pulp and ammonia water as raw materials |
| CN103496716A (en) * | 2013-10-22 | 2014-01-08 | 武汉科技大学 | Method for producing industrial excellent ammonium sulfate through coarse ammonium sulfate coking coupling evaporation solventing-out crystallization |
| CN103708501A (en) * | 2013-12-18 | 2014-04-09 | 武汉科技大学 | Method for refining coked crude ammonium sulfate through membrane crystallization |
-
2006
- 2006-03-02 CN CN 200610020408 patent/CN101028932A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951657A (en) * | 2012-12-10 | 2013-03-06 | 张卫东 | Process and equipment for producing ammonium sulfate by taking sulfur pulp and ammonia water as raw materials |
| CN102951657B (en) * | 2012-12-10 | 2014-06-04 | 张卫东 | Process and equipment for producing ammonium sulfate by taking sulfur pulp and ammonia water as raw materials |
| CN103496716A (en) * | 2013-10-22 | 2014-01-08 | 武汉科技大学 | Method for producing industrial excellent ammonium sulfate through coarse ammonium sulfate coking coupling evaporation solventing-out crystallization |
| CN103496716B (en) * | 2013-10-22 | 2014-12-10 | 武汉科技大学 | Method for producing industrial excellent ammonium sulfate through coarse ammonium sulfate coking coupling evaporation solventing-out crystallization |
| CN103708501A (en) * | 2013-12-18 | 2014-04-09 | 武汉科技大学 | Method for refining coked crude ammonium sulfate through membrane crystallization |
| CN103708501B (en) * | 2013-12-18 | 2017-08-25 | 武汉科技大学 | A kind of method that membrane crystallization refines the thick sulphur ammonium of coking |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |