Preparation of hexamethyleneimine
    3.
    发明授权
    Preparation of hexamethyleneimine 失效
    六亚甲基亚胺的制备

    公开(公告)号:US4290946A

    公开(公告)日:1981-09-22

    申请号:US598914

    申请日:1975-07-24

    IPC分类号: C07D295/023 C07D295/02

    CPC分类号: C07D295/023

    摘要: A process for preparing hexamethyleneimine from hexamethylenediamine, which comprises continuously reacting hexamethylenediamine at about 70 to 180.degree. C. in an inert solvent using a nickel catalyst and/or cobalt catalyst while maintaining the concentrations of hexamethyleneimine and hexamethylenediamine in the reaction mixture at 10% by weight or less and 25% by weight or less, respectively, by removing the hexamethyleneimine from the reaction system as soon as the hexamethyleneimine is formed.

    摘要翻译: 由六亚甲基二胺制备六亚甲基亚胺的方法,该方法包括使用镍催化剂和/或钴催化剂在惰性溶剂中在约70至180℃下使六亚甲基二胺连续反应,同时将反应混合物中六亚甲基亚胺和六亚甲基二胺的浓度保持在10% 重量以下且25重量%以下,通过一旦形成六亚甲基亚胺就从反应体系中除去六亚甲基亚胺。