发明名称 |
IMPROVED METHOD FOR SIMULTANEOUS PREPARATION OF 6-AMINOCAPRONITRILE AND HEXAMETHYLENE DIAMINE |
摘要 |
The invention relates to a method for simultaneous preparation of 6- aminocapronitrile and hexamethylene diamine from adipodinitrile, comprising the following steps: a) hydrogenating adipodinitrile in the presence of a catalyst containing an element of the eight subgroup as catalytically active component to obtain a mixture containing 6-aminocapronitrile, hexamethylene diamine, adipodinitrile and high boilers; b) separating by distillation hexamethylene diamine from the mixture containing 6-aminocapronitrile, hexamethylene diamine, adipodinitrile and high boilers and c1) separating by distillation 6-aminocapronitrile and subsequently d1) separating by distillation adipodinitrile or c2) simultaneously separating by distillation 6- aminocapronitrile and adipodinitrile into separate fractions. The method is characterized in that the temperature of the bottom in steps d1) or c2) is below 185 ~ C.
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申请公布号 |
CA2342177(A1) |
申请公布日期 |
2000.03.09 |
申请号 |
CA19992342177 |
申请日期 |
1999.08.17 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
MERGER, MARTIN;MELDER, JOHANN-PETER;LUYKEN, HERMANN;ANSMANN, ANDREAS;BASSLER, PETER;REHFINGER, ALWIN;ACHHAMMER, GUNTHER;OHLBACH, FRANK;VOIT, GUIDO;FISCHER, ROLF |
分类号 |
C07B61/00;C07C209/48;C07C209/84;C07C211/12;C07C253/30;C07C253/34;C07C255/24;(IPC1-7):C07C209/48 |
主分类号 |
C07B61/00 |
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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