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 |
US2009088567(A1) |
申请公布日期 |
2009.04.02 |
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;SCHAFLEIN STEPHAN;MODROW BERND-HOLGER |
分类号 |
C07D225/02 |
主分类号 |
C07D225/02 |
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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