Purification of .epsilon.-caprolactam
    2.
    发明授权
    Purification of .epsilon.-caprolactam 失效
    纯化{68-己内酰胺

    公开(公告)号:US4170592A

    公开(公告)日:1979-10-09

    申请号:US832007

    申请日:1977-09-09

    IPC分类号: C01C1/24 C07D201/16

    CPC分类号: C07D201/16

    摘要: A process for the purification of a solution of .epsilon.-caprolactam in benzene, toluene or xylene by washing with a liquid, wherein the washing liquid is a solution of .epsilon.-caprolactam in water in a weight ratio of from 15 : 1 to 1 : 3, which is used in a quantity of from 5 to 20% by weight, based on the solution of caprolactam in benzene, toluene or xylene, and wherein there are several washing stages so that the equilibrium between the two solutions can be readjusted.

    摘要翻译: 一种通过用液体洗涤来纯化ε-己内酰胺在苯,甲苯或二甲苯中的溶液的方法,其中洗涤液是ε-己内酰胺在水中的重量比为15:1至1:3的溶液 ,其用量为5至20重量%,基于己内酰胺在苯,甲苯或二甲苯中的溶液,并且其中有几个洗涤阶段,使得可以重新调节两种溶液之间的平衡。