SEPARATION OF TRANSITION METAL COORDINATED COMPLEX COMPOUND

摘要

PROBLEM TO BE SOLVED: To highly selectively separate and recover a coordinated complex compound of a transition metal from an organic compound mixed solution by filtering the coordinated complex compound containing an alkyl of a specific sulfonated aryl phosphite under pressure through a silicon rubber membrane to separate the compound from the organic compound mixed solution of the compound. SOLUTION: At the time of separating the coordinated complex compound consisting of a phosphite based ligand and a transition metal from a reaction product solution containing the coordinated complex compound of the transition metal and excess free ligands as a catalytic base, a sulfonated phosphite quaternary amine salt is used as the ligand of the coordinated complex compound of the transition metal and the catalyst is highly selectively separated from the reaction product by filtering with the silicone rubber membrane under pressure. The sulphonated phosphite quaternary amine salt is expressed by the formula and one synthesized by the reaction of sulfonated phenol quaternary amine salt with triaryl phosphite is used. In the formula, Ph represents a phenylene group or the like, (n) represents integers of 1-3 and each of R1 to R4 represents hydrogen atom or the like.