发明名称 |
Process for preparing aspartic acid from ammonium aspartate, and continuous process for preparing polysuccinimide involving such process |
摘要 |
The invention relates to a process for the preparation of aspartic: acid by decomposition of ammonium aspartate wherein a concentrated aqueous solution of ammonium aspartate is continuously introduced into a diluent in which water has a low solubility, which diluent is maintained at a temperature at which ammonium aspartate decomposes into aspartic acid and ammonia, and wherein the water and the formed ammonia are continuously removed. The invention also relates to a process for preparing polysuccinimide starting from fumaric acid or maleic acid and ammonia involving said process for preparing aspartic acid from ammonium aspartate.
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申请公布号 |
US6274698(B1) |
申请公布日期 |
2001.08.14 |
申请号 |
US20000486933 |
申请日期 |
2000.06.08 |
申请人 |
AMYLUM EUROPE N.V. |
发明人 |
CAMI PIERRE;LECOMTE DIDIER;EYAL AHARON;VITNER AHER |
分类号 |
C08G69/10;C08G73/10;(IPC1-7):C08G69/10 |
主分类号 |
C08G69/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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