Process for the production of methacrylic acid

Details Process for the production of methacrylic acid Process for the production of methacrylic acid

1980-02-11

1985-02-12

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

2604055, 502213, 568397, 585638, C07C 51377, C07C 5705

Patent

active

044993021

ABSTRACT:
Preparation of aliphatic alpha, beta-unsaturated carboxylic acids from the corresponding saturated acids by oxidative dehydrogenation, at a temperature between 250.degree. and 500.degree. C., in the presence of a catalyst of empirical formula: FeP.sub.x Me.sub.y Me'.sub.t O.sub.z wherein Me is at least one alkali or alkaline earth element, Me' is at least one element selected from the group consisting of Ni, Cu, Ce, Al, Zr, Hf and Pr, x is between 0.2 and 15, y is between 0.01 and 2, t is between 0.01 and 5 and z is such as to satisfy the valencies of the other elements.

REFERENCES:
patent: 3398100 (1968-08-01), Christmann
patent: 3855279 (1974-12-01), Watkins
patent: 3948959 (1976-04-01), Cavaterra et al.
patent: 3993591 (1976-11-01), Cichowski et al.
patent: 4029695 (1977-06-01), Watkins
patent: 4232174 (1980-11-01), Statz et al.

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