Process for the hydroformylation of olefinically unsaturated compounds in a non-aqueous ionic solvent
申请人:Institut Francais du Petrole
公开号:US20020099243A1
公开(公告)日:2002-07-25
A process for the hydroformylation of an olefinically unsaturated compound in the liquid phase by reaction, in a reaction section, with carbon monoxide and hydrogen in the presence of a polar phase comprising:
a non-aqueous ionic liquid which is at least partly miscible with the reaction products and comprises a salt of general formula Q
+
A
−
, in which Q
+
represents a quaternary ammonium and/or phosphonium and A
−
represents an anion;
and a catalyst comprising a compound or a complex of a transition metal of groups 8, 9 and 10, optionally coordinated with a ligand containing at least one atom of phosphorus, arsenic, antimony or nitrogen,
comprises addition to the medium, after the reaction section, of an organic solvent in a manner such as to improve the separation by demixing of the crude reaction products from the said polar phase, which is recycled to the reaction section.
一种在极性相存在下,通过在反应段中与一氧化碳和氢反应,在液相中对烯烃不饱和化合物进行加氢甲酰化的工艺,包括
一种非水离子液体,它至少与反应产物部分混溶,并包含通式 Q 的盐
及加
A
-
其中 Q
代表季铵和/或鏻
代表季铵和/或鏻,A
-
代表阴离子;
和催化剂,催化剂包括 8、9 和 10 族过渡金属的化合物或络合物,该化合物或络合物可选 择与含有至少一个磷、砷、锑或氮原子的配位体配位、
包括在反应段后向介质中加入有机溶剂,其方式是通过将粗反应产物从上述极性相中分离出来来提高分离效果,该极性相被循环到反应段。