公开(公告)号：US4061677A

公开(公告)日：1977-12-06

申请号：US700541

申请日：1976-06-28

申请人： Kurt Kahr ,  Hanns Pohl ,  Guenther Rapp ,  Peter Lauz

发明人： Kurt Kahr ,  Hanns Pohl ,  Guenther Rapp ,  Peter Lauz

IPC分类号： C07C131/04

摘要： The application relates to a process for partial dehydration of cyclohexanone oxime by treatment with an aqueous solution of an inorganic salt, the crude cyclohexanone oxime being extracted at above its melting point countercurrently in an extraction column with a concentrated solution of ammonium or/and hydroxylammonium salt. The salt solution may be used again after concentration. This may be effected by simple evaporation.

摘要翻译： 本申请涉及通过用无机盐水溶液处理来部分脱水环己酮肟的方法，该粗环己酮肟在萃取塔中以高于其熔点的方式提取，用铵或/和铵盐的浓溶液 。 浓缩后可以再次使用盐溶液。 这可以通过简单的蒸发来实现。