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    • 10. 发明授权
    • Process for hydroformylation with rhodium catalysts and the separation
of rhodium therefrom
    • 用铑催化剂加氢甲酰化和从中分离铑的方法
    • US4731485A
    • 1988-03-15
    • US9734
    • 1987-02-02
    • Boy CornilsWerner KonkolHelmut BahrmannHanswilhelm BachErnest WiebusWolfgang Lipps
    • Boy CornilsWerner KonkolHelmut BahrmannHanswilhelm BachErnest WiebusWolfgang Lipps
    • C07C45/50
    • C07C45/50
    • A process for separating rhodium from mixtures thereof, comprising extracting said rhodium with an aqueous solution of a rhodium complexing agent and a solubilizer. A process for preparing aldehydes in the presence of both the complexing agent and the solubilizer is also set forth. The solubilizer is generally selected from salts of carboxylic acids having 8-20 carbon atoms, alkyl sulfonates, alkyl aryl sulfonates, amines and quaternary ammonium compounds of Formula II ##STR1## wherein A is alkyl, alkoxy, hydroxyalkyl, aryl having 6-25 carbon atoms, or R.sup.7 CONHCH.sub.2 CH.sub.2 CH.sub.2 --wherein R.sup.7 is alkyl having 5-11 carbon atoms; B is an alkyl having 1-25 carbon atoms, an aryl having 6-25 carbon atoms, or an .omega.-hydroxy alkyl having 1-4 carbon atoms; C and D are each independently an alkyl or .omega.-hydroxy alkyl having 1-4 carbon atoms or form, together with each other and the bridging N, a 5 or 6 membered heterocyclic ring; E is a halide, sulfate, borate, sulfonate, lactate or citrate; and p is the number of charges on E. The rhodium complexing agent is preferably a triaryl phosphine carboxylate or sulfonate.
    • 一种从其混合物中分离铑的方法,包括用铑络合剂和增溶剂的水溶液萃取所述铑。 还阐述了在络合剂和增溶剂存在下制备醛的方法。 增溶剂通常选自具有8-20个碳原子的羧酸盐,烷基磺酸盐,烷基芳基磺酸盐,胺和季铵化合物,其中A是烷基,烷氧基,羟基烷基,具有6-25个 碳原子或R7CONHCH2CH2CH2-,其中R7是具有5-11个碳原子的烷基; B是具有1-25个碳原子的烷基,具有6-25个碳原子的芳基,或具有1-4个碳原子的ω-羟基烷基; C和D各自独立地为具有1-4个碳原子的烷基或ω-羟基烷基,或彼此形成桥连N和5或6元杂环; E是卤化物,硫酸盐,硼酸盐,磺酸盐,乳酸盐或柠檬酸盐; 并且p是E上的电荷数。铑络合剂优选为三芳基膦羧酸盐或磺酸盐。