Process for producing acetic acid

Details Process for producing acetic acid Process for producing acetic acid

1987-04-06

1990-06-19

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562536, 568475, C07C 5116

Patent

active

049355490

ABSTRACT:
A process for producing acetic acid directly from ethylene under mild conditions is provided, wherein ethylene and oxygen are respectively coordinated with the respective transition metals contained in a specified composite catalyst system, and ethylene activated thereby is successively oxidized by two kinds of oxygen complexes contained in the system and having their electric charge states adjusted, the composite catalyst system comprising a complex represented by a formula (MmXn.Ll) and a complex represented by a formula (M'm'Xn'.L'l') wherein is a transition metal of the groups I, IV.about.VII and iron group; X, an anion; L, an organic phosphorus compound as a ligand; M', a transition metal of Pt group; L', a nitrile, organic fluorine compound or organic phosphorus compound as a ligand; m, m', n and n', each a number determined by the valences of the transition metals and anion; and l and l' each the number of ligands.

REFERENCES:
patent: 3213155 (1965-10-01), Schiesheim et al.
patent: 4521631 (1985-06-01), Nishimura et al.

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