| 发明名称 |
PROCESS FOR THE CRYSTALLIZATION OF SUCCINIC ACID |
| 摘要 |
The present invention relates to a process for recovering succinic acid in crystal form from a fermentation broth comprising succinic acid, comprising the steps of
a) bringing the fermentation broth to a pH of between 1 and 4,b) crystallizing the succinic acid from the fermentation broth to form succinic acid crystals,c) dissolving the succinic acid crystals at a temperature of between 30 and 90 degrees Celsius to form an aqueous solution comprising dissolved succinic acid,d) crystallizing the succinic acid from the solution to recover succinic acid in crystal form.;The invention further relates to succinic acid in crystal form, comprising a sugar content of 1 to 100 ppm and a nitrogen content of 1 to 80 ppm. |
| 申请公布号 |
US2015057425(A1) |
申请公布日期 |
2015.02.26 |
| 申请号 |
US201414528321 |
申请日期 |
2014.10.30 |
| 申请人 |
DSM IP ASSETS B.V. ;ROQUETTE FRERES SA |
发明人 |
VAN DE GRAAF Maarten Job;VALIANPOER Fredoen;FIEY Guillaume;DELATTRE Loic;SCHULTEN Elisabeth Agnes Michele |
| 分类号 |
C07C55/10;C08G63/16;C12P7/46 |
主分类号 |
C07C55/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process for recovering succinic acid in crystal form from a fermentation broth comprising succinic acid, comprising the steps of:
a) bringing said fermentation broth to a pH of from 1 to 4, b) crystallizing said succinic acid from said fermentation broth to form succinic acid crystals, c) dissolving said succinic acid crystals at a temperature of from 30 to 100 degrees Celsius to form an aqueous solution comprising dissolved succinic acid, d) crystallizing said succinic acid from the solution to recover said succinic acid in crystal form. |
| 地址 |
Heerlen NL |
