Continuous hydrolysis of ketoxime
    3.
    发明公开
    Continuous hydrolysis of ketoxime 失效
    酮肟的连续水解。

    公开(公告)号:EP0074472A1

    公开(公告)日:1983-03-23

    申请号:EP82105975.5

    申请日:1982-07-05

    摘要: A mixture of ketoxime such as methyl ethyl ketone oxime (MEKO), an inorganic acid such as sulfuric acid and optionally water is fed to an intermediate point of a fractional distillation column. Steam is fed to the base of the column and operating conditions are sufficient to produce the corresponding ketone (e.g. methyl ethyl ketone) or its water azeotrope as the overhead product and the corresponding hydroxyl-ammonium salt (e.g. the sulfate) as the bottoms. Crystallization of the salt from the bottoms leaves a mother liquor which may be recycled to a reboiler from which the steam is generated.