Mehtod for producing 1,3-propanediol and 2,3-cis-butanediol from crude starch material |
Title： |
| Mehtod for producing 1,3-propanediol and 2,3-cis-butanediol from crude starch material |
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Application Number： |
200510011959 |
Application Date： |
2005/06/17 |
Announcement Date： |
2005/12/21 |
Pub. Date： |
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Publication Number： |
1710086 |
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： |
C12P 7/18 |
Applicant(s)： |
Tsinghua Group |
Inventor(s)： |
Cheng Keke, Hao Jian, Lin Rihui, Liu Dehua, Liu Hongjuan |
Key Words： |
crude starch material, 1,3-propanediol, 2,3-cis-butanediol, producing method |
Abstract： |
This invention provides production of material 1, 3- trimethylene glycol and 2, 3- butylene-glycol by coarse starch. The coarse starch is fermented continuously by yeast cell to obtain the high concentration fermented liquid of glycerine. The fermented liquid of glycerine is filtered to obtain the cells which can be used for the next batch glycerine fermentation. The filtrate is used as the base material for producing 1, 3- trimethylene glycol. Add the nitrogen source in the fermented course. When finishing the fermentation conduct the processes of desalting, distillation, vacuum rectification etc. step to the 3- Trimethylene glycol and 2, 3- Butylene-glycol to obtain the products. At the same time the concention of 1, 3- Trimethylene glycol and 2, 3- Butylene-glycol with high added value is increased through cell back-use and mending material craft. Its advantage lies in: reduced the production cost effectively, raised production efficiency. |
Claim： |
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Priority： |
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PCT： |
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