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Hydroformylation process employing a cobalt-based catalyst in a non-aqueous liquid with improved catalyst recycling
Hydroformylation process employing a cobalt-based catalyst in a non-aqueous liquid with improved catalyst recycling
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机译:在非水液体中使用钴基催化剂进行加氢甲酰化的方法,可提高催化剂的循环利用率
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摘要
A process for hydroformylating olefinically unsaturated compounds by means of a cobalt-based catalyst is carried out in a non-aqueous ionic liquid which is a liquid at a temperature below 90° C. and comprises at least one ammonium and/or phosphonium and/or sulfonium cation Q+ and at least one anion A−; catalyst recycling is improved by using a ligand selected from the group consisting of Lewis bases and employing a depressurization step between the pressurized reaction step and the step for separating the phases by decanting. At the end of said depressurization step, the organic phase is separated in the decanting step and the non-aqueous ionic liquid containing the catalyst can be re-used.
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