发明名称 |
METHOD FOR PURIFYING LACTAMES |
摘要 |
The invention relates to a method for purifying lactames, especially lactames obtained by cyclization hydrolysis of an aminoalkylnitrile, and more particularly, to the purification of epsilon -caprolactame obtained by cyclization hydrolysis of the aminocapronitrile. This crystallisation process can either be carried out directly on the cyclization reaction medium after removal of the volatile components or on a medium that has been subjected to different treatments or on a caprolactame extracted from the reaction medium, for example by distillation.
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申请公布号 |
WO0149665(A3) |
申请公布日期 |
2002.06.27 |
申请号 |
WO2000FR03694 |
申请日期 |
2000.12.27 |
申请人 |
RHODIA POLYAMIDE INTERMEDIATES;CARVIN, PHILIPPE;MASSON, JEAN-CLAUDE |
发明人 |
CARVIN, PHILIPPE;MASSON, JEAN-CLAUDE |
分类号 |
C07D223/10;C07D201/16;C07D209/16;(IPC1-7):C07D209/16 |
主分类号 |
C07D223/10 |
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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