Method for producing polyetherpolyols in the presence of a multi-metal cyanide complex catalyst
    3.
    发明授权
    Method for producing polyetherpolyols in the presence of a multi-metal cyanide complex catalyst 失效
    在多金属氰化物配合物催化剂存在下制备聚醚多元醇的方法

    公开(公告)号:US06673972B2

    公开(公告)日:2004-01-06

    申请号:US10169683

    申请日:2002-07-05

    IPC分类号: C07C4311

    摘要: Polyetherpolyols are prepared by reacting diols or polyols with ethylene oxide, propylene oxide, butylene oxide or a mixture thereof in the presence of a multimetal cyanide complex catalyst by a process which is carried out in a vertical upright cylindrical reactor comprising a jet nozzle which is arranged in the upper reactor region and is directed downward and via which the starting materials and the reaction mixture are fed in, and comprising a take-off, preferably in the lower reactor region, via which the reaction mixture is fed back to the jet nozzle in an external circulation by means of a pump via an equilibration container, comprising a concentric guide tube which extends over the total length of the reactor, except for the reactor ends, and comprising a heat exchanger integrated in the annular space.

    摘要翻译: 聚醚多元醇通过二元醇或多元醇与环氧乙烷,环氧丙烷,环氧丁烷或其混合物在多金属氰化物配合物催化剂存在下反应来制备,该方法是在包括喷嘴的立式圆柱形反应器中进行的方法, 在上反应器区域中并且向下引导起始材料和反应混合物,并且优选在较低的反应器区域中包含起飞物料,反应混合物经反应器区域被反馈到喷嘴中 通过平衡容器通过泵的外部循环,包括在反应器的整个长度上延伸的同心引导管,除了反应器端部,并且包括集成在环形空间中的热交换器。