| 发明名称 |
Purification of a crude lactam mixture by means of melt crystallization |
| 摘要 |
The present invention provides a method for purifying laurolactam from a crude lactam mixture. In the method of the present invention, laurolactam is selectively crystallized by melt crystallization with controlled cooling of the crude lactam mixture.
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| 申请公布号 |
US7807826(B2) |
申请公布日期 |
2010.10.05 |
| 申请号 |
US20080244452 |
申请日期 |
2008.10.02 |
| 申请人 |
EVONIK DEGUSSA GMBH |
发明人 |
HENGSTERMANN AXEL;MEIER RALF;GUENZEL BERND;ROOS MARTIN;SCHAEFLEIN STEPHAN;MODROW BERND-HOLGER |
| 分类号 |
C07D225/00 |
主分类号 |
C07D225/00 |
| 代理机构 |
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