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

1976-10-19

1978-02-21

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252435, 260530N, B01J 2714, C07C 5124

Patent

active

040751244

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: 3684741 (1972-08-01), Friedrichsen et al.
patent: 3686294 (1972-08-01), Ito et al.
patent: 3761516 (1973-09-01), Kloobiar
patent: 3875220 (1975-04-01), White et al.

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