Method for activating double metal cyanide catalysts for the production of polyether carbonate polyols
    27.
    发明授权
    Method for activating double metal cyanide catalysts for the production of polyether carbonate polyols 有权
    用于生产聚碳酸酯多元醇的双金属氰化物催化剂的活化方法

    公开(公告)号:US09309356B2

    公开(公告)日:2016-04-12

    申请号:US14232633

    申请日:2012-07-16

    摘要: The present invention relates to a process for the activation of double metal cyanide (DMC) catalysts with heterocumulenes for the preparation of polyether carbonate polyols by catalytic copolymerization of carbon dioxide (CO2) with alkylene oxides in the presence of one or more H-functional starter substances, and to a process for the preparation of polyether carbonate polyols from one or more H-functional starter substances, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, characterized in that (α) under an inert gas atmosphere, under an atmosphere of an inert gas/carbon dioxide mixture or under a pure carbon dioxide atmosphere, at temperatures of from 90 to 150° C., the DMC catalyst is mixed with a heterocumulene and H-functional starter substance, (β) alkylene oxide is added at temperatures of from 100 to 150° C. to the mixture from step (α) under an inert gas atmosphere, under an atmosphere of an inert gas/carbon dioxide mixture or under a pure carbon dioxide atmosphere, and (γ) one or more alkylene oxides and carbon dioxide are metered continuously into the mixture resulting from step (β).

    摘要翻译: 本发明涉及一种用于通过在一种或多种H功能性起始剂存在下通过二氧化碳(CO 2)与氧化烯的催化共聚来制备聚醚碳酸酯多元醇的异氰脲酸双金属氰化物(DMC)催化剂的活化方法 以及在双金属氰化物催化剂存在下从一种或多种H官能起始物质,一种或多种环氧烷和二氧化碳制备聚醚碳酸酯多元醇的方法,其特征在于(α)在惰性 气体气氛中,在惰性气体/二氧化碳混合气氛下或在纯二氧化碳气氛下,在90〜150℃的温度下,将DMC催化剂与杂多烯和H官能起始物质(&bgr ;)在惰性气体气氛下,在惰性气体/二氧化碳气氛下,将氧化烯在100至150℃的温度下加入步骤(α)的混合物中 或者在纯二氧化碳气氛下,将(γ)一种或多种烯化氧和二氧化碳连续计量到由步骤(bgr)得到的混合物中。