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    • 10. 发明授权
    • Process for preparing polyether alcohols
    • 制备聚醚醇的方法
    • US09120731B2
    • 2015-09-01
    • US13813300
    • 2011-08-08
    • Achim LoefflerMichael StoesserWolfgang LothRalf BoehlingSirus Zarbakhsh
    • Achim LoefflerMichael StoesserWolfgang LothRalf BoehlingSirus Zarbakhsh
    • C07C41/02C08G65/26
    • C07C41/02C08G65/2696
    • What is proposed is a process for preparing polyether alcohols by conversion of the following reactants: a) one or more alkylene oxides and optionally carbon dioxide and b) one or more H-functional starter substances, in the presence of a catalyst, to form a liquid reaction mixture, in a reaction unit (1), which is characterized in that the reaction unit (1) has internals (2) which form a multitude of microstructured flow channels which bring about multiple splitting of the liquid reaction mixture into component flow paths and recombination thereof in altered arrangement, the multiple splitting and recombination being repeated several times and the microstructured flow channels having a characteristic dimension which is defined as the greatest possible distance of any particle in the liquid reaction mixture from the wall of a flow channel closest to the particle, in the range from 20 to 10 000 μm, the result being that the flow profile of the liquid reaction mixture approximates to ideal plug flow as a result of the microstructured flow channels.
    • 提出的是通过以下反应物的转化来制备聚醚醇的方法:a)一种或多种环氧烷烃和任选的二氧化碳,和b)一种或多种H官能起始物质,在催化剂存在下,形成 液体反应混合物,在反应单元(1)中,其特征在于反应单元(1)具有形成多个微结构流动通道的内部(2),其导致液体反应混合物多次分离成组分流动路径 并且其重组在改变的布置中,多次分裂和重组被重复几次,并且微结构流动通道具有被定义为液体反应混合物中任何颗粒与流动通道的壁最接近的最大可能距离的特征尺寸 颗粒在20至1000000范围内,其结果是液体反应混合物的流动分布近似于id 作为微结构化流动通道的结果,流动的流动。