Process for the preparation of a mixture of .epsilon.-caprolactam,
6-aminocaproic acid and 6-aminocaproic amide
    10.
    发明授权
    Process for the preparation of a mixture of .epsilon.-caprolactam, 6-aminocaproic acid and 6-aminocaproic amide 失效
    制备ε-己内酰胺,6-氨基己酸和6-氨基己酰胺的混合物的方法

    公开(公告)号:US6011153A

    公开(公告)日:2000-01-04

    申请号:US140896

    申请日:1998-08-21

    CPC classification number: C07D201/12

    Abstract: Process for the preparation of a mixture of .epsilon.-caprolactam, 6-aminocaproic acid and 6-aminocaproic amide by heating an aqueous mixture containing ammonia and oligomers of 6-aminocaproic acid and/or of 6-aminocaproic amide, the aqueous mixture containing 0.5-7 wt. % of equivalent ammonia (calculated as NH.sub.3) and the temperature lying between 280.degree. C. and 330.degree. C., in which by "equivalent ammonia" is meant free ammonia and ammonia present in the form of a terminal amide group of one of the compounds present in the aqueous mixture.

    Abstract translation: 通过加热含有氨和6-氨基己酸和/或6-氨基己酸酰胺的低聚物的含水混合物制备ε-己内酰胺,6-氨基己酸和6-氨基己酰胺的混合物的方法,含0.5- 7重量% 相当于氨的百分比(以NH 3计算)和温度在280℃至330℃之间,其中“等效氨”是指游离氨和氨以其中之一的末端酰胺基团的形式存在 存在于含水混合物中的化合物。

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