发明授权
US6147247A Process for simultaneously preparing 6-aminocapronitrile and hexamethylene diamine 有权
同时制备6-氨基己腈和六亚甲基二胺的方法

Process for simultaneously preparing 6-aminocapronitrile and
hexamethylene diamine
摘要:
A process for coproduction of 6-aminocapronitrile and hexamethylenediamine starting from a mixture comprising a phosphorus-containing compound and essentially adiponitrile and obtained by reaction of butadiene with hydrocyanic acid in the presence of a catalyst comprising a phosphorus-containing compound comprises(1) reducing the weight proportion of phosphorus-containing compound, calculated as phosphorus, in the mixture,(2) partially hydrogenating the resulting mixture in the presence of a catalyst to form an .alpha.,.omega.-aminonitrile, and(3) removing 6-aminocapronitrile and hexamethylenediamine from the mixture.
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