Technique of extracting 1,3-dihydroxypropane prepared by fermentation method |
Title: |
Technique of extracting 1,3-dihydroxypropane prepared by fermentation method |
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Application Number: |
200710065558 |
Application Date: |
2007/04/16 |
Announcement Date: |
2007/09/12 |
Pub. Date: |
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Publication Number: |
101033171 |
Announcement Number: |
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Grant Date: |
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Granted Pub. Date: |
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ApplicationType: |
Invention |
State/Country: |
11[China|beijing] |
IPC: |
C07C 31/20C07C 29/74C12P 7/18 |
Applicant(s): |
Tsinghua University |
Inventor(s): |
Liu Dehua, Yang Dehua, Hao Jian, Liu Caijun, Cheng Keke, Sun Yan |
Key Words: |
extracting, 1,3-dihydroxypropane, fermentation |
Abstract: |
This invention relates to a pick up method for producing 1, 3-propanediol, which utilizes the character that inorganic salt is easy to be crystallized and the organic salt in the 1, 3-propanediol ferment solution is not easy to be crystallized to add suitable volume of inorganic acid in the ferment solution to replace the organic salts to organic acid and generate inorganic salts, concentrate the ferment solution to crystallize the inorganic salts and separate it out so as to separate itself from the ferment solution, and the concentrated ferment solution becomes a mixture of 1, 3-propanediol, amber acid, lactic acid, acetic acid, glycerin and 2, 3-butanediol to be vacuum-rectified to get a product with various compositions advantaged that either the salts in the ferment solution are taken off, or products of amber acid, lactic acid, acetic acid and inorganic salts are got. |
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