Reactivation of water-soluble hydroformylation catalysts
    3.
    发明授权
    Reactivation of water-soluble hydroformylation catalysts 失效
    水溶性加氢甲酰化催化剂的再活化

    公开(公告)号:US5466644A

    公开(公告)日:1995-11-14

    申请号:US378861

    申请日:1995-01-19

    摘要: A process for regenerating a water-soluble hydroformylation catalyst system comprising a coupler rhodium hydrogen-carbonyl complex of rhodium and compounds of the formula ##STR1## wherein Ar.sup.1 and Ar.sup.2 and Ar.sup.3 are individually phenyl or naphthyl, Y.sup.1, Y.sup.2 and Y.sup.3 are individually selected from the group consisting of alkyl and alkoxy of 1 to 4 carbon atoms, halogen, --OH, --CN, --NO.sub.2 and R.sup.1 R.sup.2 N--, R.sup.1 and R.sup.2 are individually alkyl of 1 to 4 carbon atoms, X.sup.1, X.sup.2 and X.sup.3 are individually carboxylate (--COO.sup.-) or sulfonate (--SO.sub.3.sup.-), m.sub.1, m.sub.2 and m.sub.3 are individually integers of 0 to 3, at least one of m.sub.1, m.sub.2 or m.sub.3 being equal to or greater than 1, and n.sub.1, n.sub.2 and n.sub.3 are individually integers of 0 to 5 and if appropriate in excess comprising adding maleic acid, fumaric acid or olefinically unsaturated compounds of formula ##STR2## wherein X is selected from the group consisting of O, S, -- ##STR3## or ##STR4## and R.sup.3, R.sup.4 and R.sup.5 are individually hydrogen, or alkyl or aryl to an aqueous solution of the catalyst system in an amount sufficient to remove sulfonated or carboxylated alkyl-arylphosphanes.

    摘要翻译: 一种再生水溶性加氢甲酰化催化剂体系的方法,其包含铑的偶合铑氢 - 羰基络合物和其中Ar1和Ar2和Ar3各自独立地为苯基或萘基,Y1,Y2和Y3的式I化合物的化合物, 由1-4个碳原子的烷基和烷氧基组成的组,卤素,-OH,-CN,-NO 2和R 1 R 2 N - ,R 1和R 2分别是1至4个碳原子的烷基,X 1,X 2和X 3分别是羧酸酯 (-COO-)或磺酸盐(-SO3-),m1,m2和m3分别为0-3的整数,m1,m2或m3中的至少一个等于或大于1,n1,n2和n3分别为 单独的整数为0至5,如果适当,过量包括加入马来酸,富马酸或烯属不饱和的式II化合物,其中X选自O,S, - IMAGE或IMAGE,和 R3,R4和R5分别是氢,或烷基或芳基与催化剂的水溶液 t系统,其量足以除去磺化或羧化的烷基 - 芳基磷烷。