Process for the preparation of unsaturated acids from unsaturate

Details Process for the preparation of unsaturated acids from unsaturate Process for the preparation of unsaturated acids from unsaturate

1977-03-14

1979-03-27

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

252435, 252437, 562534, 562536, C07C 5132, C07C 5704

Patent

active

041467337

ABSTRACT:
Methacrylic acid or acrylic acid are produced by the oxidation of methacrolein or acrolein, respectively, with molecular oxygen in the vapor phase in the presence of a catalytic oxide of molybdenum, phosphorus, arsenic, at least one element selected from the group consisting of Ag, Rh, Ru, and Au, oxygen, and optionally, at least one of Cd, Pt, Tl, Pd, Al, Ge, Cu, Ni, alkaline earth metal, NH.sub.4 and Cl.

REFERENCES:
patent: 3649684 (1972-03-01), Akiyama et al.
patent: 3956377 (1976-05-01), Dolbyj et al.

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