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Zinc/metal hexacyanocobaltate complex compounds, a process for their preparation, and their use in a process for the production of polyether polyols
Zinc/metal hexacyanocobaltate complex compounds, a process for their preparation, and their use in a process for the production of polyether polyols
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机译:六氰基钴酸锌/金属配合物,其制备方法及其在生产聚醚多元醇中的用途
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摘要
The invention relates to novel zinc/metal hexacyanocobaltate complex compounds corresponding to the formula:PPZn.sub.3- v M.sub. v [Co(CN).sub.6 ].sub.2.w(H.sub.2 O).x(L).y[Zn(X).sub.n ].z[M(Y). sub.m)]. PPThese complex compounds are suitable catalysts. This invention also relates to a process for the production of the compounds, and to the use of the compounds in a process for the production of polyether polyols.PPThese novel zinc/metal hexacyanocobaltate complex compounds when used as catalysts in a process for the production of polyether polyols substantially reduce the induction period of the polyaddition reaction of alkylene oxides to starter compounds containing hydrogen atoms. Furthermore, the resultant polyether polyols have a significantly narrower molecular weight distribution.
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机译:本发明涉及新颖的锌/金属六氰基钴酸盐配位化合物,其对应于下式:P P Zn 3-vM。 v [Co(CN).sub.6] .sub.2.w(H.sub。2 O).x(L).y [Zn(X).n] .z [M(Y)。 sub.m)]。这些配合物是合适的催化剂。本发明还涉及该化合物的制备方法,以及该化合物在聚醚多元醇的制备方法中的用途。生产聚醚多元醇的方法大大减少了烯化氧与含氢原子的起始化合物的加聚反应的诱导期。此外,所得的聚醚多元醇具有明显较窄的分子量分布。
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