Regeneration of platinum-metal-based catalysts with carboxyphosphines as extractants期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Regeneration of platinum-metal-based catalysts with carboxyphosphines as extractants

Authors:	Alexandr Jegorov Jaroslav Podlaha

Affiliation:	(1) South Bohemian Biological Centre, Czechoslovak Academy of Sciences, Braniovská 31, 370 05 eské, Budjovice;(2) Department of Inorganic Chemistry, Charles University, 128 40 Prague 2, Czechoslovakia

Abstract:	Separation of platinum-metal-based homogeneous catalysts was achieved by their conversion to complexes of functionalized phosphines of the general formulae R_3-nP(CH₂)_x CO₂H)]_n, R = Me, Et, Ph,n = 1, 2, 3,x = 1, 2, and (HO₂CCH₂)PCH₂]₂, followed by extraction of the complexes into aqueous phase. This approach to regeneration of platinum metals from reaction mixtures after carrying out homogeneously catalyzed reactions was demonstrated on 11 examples of various types of reactions with Ru, Rh, Pd, Os, Ir and Pt compounds as catalysts.

Keywords:	Complexes of platinum metals homogeneous catalysis regeneration of platinum metals carboxyphosphines
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