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Process for the removal of metal catalysts from the selectively hydrogenated polymers by using organotitanium compound
Process for the removal of metal catalysts from the selectively hydrogenated polymers by using organotitanium compound
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机译:通过使用有机钛化合物从选择性氢化的聚合物中去除金属催化剂的方法
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摘要
The present invention provides an effective process for removal of the residual metal catalyst from a polymer solution using water and alcohol containing an inorganic acid after selective hydrogenation of the unsaturated olefinic double bonds in a polymer of a conjugated diene monomer or a copolymer of a conjugated diene monomer and an aromatic vinyl monomer in the presence of a homogeneous organotitanium catalyst, which is an economical and simple process especially for the purpose of an industrial use for effectively removing the residual titanium compounds and lithium salts from the hydrogenated polymer solution.
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