Carboxylic acid mixtures and process for producing the same

Details Carboxylic acid mixtures and process for producing the same Carboxylic acid mixtures and process for producing the same

1992-07-20

1993-06-29

Dees, Jose G.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5114

Patent

active

052236412

ABSTRACT:
Disclosed is a process for the production of carboxylic acids providing esters unlikely to be hydrolyzable, which comprises reacting a polyolefin containing an isobutylene unit at a rate of 60% by weight or higher with monoxide and water in the presence of a catalyst in an amount of sulfuric acid in the catalyst of 3 moles or more with respect to mole of C.dbd.C double bonds in the polyolefin and in amounts of carbon monoxide and water of at least a mole equivalent to the C.dbd.C double bonds in the polyolefin, said catalyst being a catalyst comprising a sulfuric acid aqueous solution in concentrations of 73% to 98% by weight and a catalyst comprising a sulfuric acid aqueous solution in concentrations of 73% to 98% by weight and phosphoric acid, each having an acid strength within a range from -6 to -9.2 or said catalyst comprising a sulfuric acid aqueous solution in concentrations of 73% to 98% by weight, phosphoric acid in concentrations of 70% by weight or less with respect to the combined quantity of the sulfuric acid aqueous solution and phosphoric acid, and a metal oxide in concentrations of 0.1% to 4% by weight with respect to the combined quantity of the sulfuric acid aqueous solution and phosphoric acid.

REFERENCES:
patent: 3910963 (1975-10-01), Souma et al.
patent: 4002577 (1977-01-01), Koyano et al.
Chem Abs., vol. 89, No. 13, Sep. 25, 1978, p. 789, abstract No. 108019q. Columbus, Ohio, US Y. Souma et al.: "Carbonylation of olefin and alcohol catalyzed by copper (I) carbonyl in hydrogen fluoride" & Osaka Kogyo Gijutsu Shikensho Kiho, 1978, 29 (2), 106-9.
Patent Abstracts of Japan; vol. 12, No. 5, (C-467)(2852), Jan. 8, 1988, & JP-A-62 164 645 (Idemitsu Petro-Chem. Co. Ltd.) Jul. 21, 1987.
Patent Abstracts of Japan; vol. 12, No. 47 (C-475) (2894), Feb. 12, 1988 & JP-A-62-192 338 (Idemitsu Petro-Chem. Co. Ltd.) Aug. 22, 1987.

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