Process for the regeneration and separation of catalysts of...

Details Process for the regeneration and separation of catalysts of... Process for the regeneration and separation of catalysts of...

C - Chemistry, Metallurgy

07

F

260/429.4

C07F 15/00 (2006.01) B01J 31/40 (2006.01) C07C 45/50 (2006.01)

Patent

CA 1055512

ABSTRACT OF THE DISCLOSURE: Regeneration and separation of catalysts Me(CO)(PR3)2 Hal(I) and HMe(CO)(PR3)3(II), where Me is rhodium or iridium, Hal is halogen and R denotes the same or different hydrocarbon radicals, from distillation residues of hydroformylation mixtures by treating said residues with aqueous acids and peroxides, mixing the resulting Me salt solutions with water- soluble organic solvents and with a phosphine PR3 and, in the case of the preparation of compound I, with a hydrohalic acid or an alkali metal halide, reacting the solutions at from 0 to 150°C and from 1 to 250 bars in case of I with carbon monoxide or compounds eliminating carbon monoxide and in case of II additionally with hydrogen, and separating the resulting compound I or II.

236567

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