Oxydehydrogenation process for preparing methacrylic acid and it

Details Oxydehydrogenation process for preparing methacrylic acid and it Oxydehydrogenation process for preparing methacrylic acid and it

1982-04-26

1983-10-18

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

560214, 502213, C07C 51377, C07C 5705, C07C 67317, C07C 6954

Patent

active

044107293

ABSTRACT:
Isobutyric acid or a lower alkyl ester thereof is oxidatively dehydrogenated in the vapor phase producing the corresponding .alpha.,.beta.-olefinically unsaturated derivative by contact with a heterogeneous catalyst in the presence of molecular oxygen. The catalyst is composed of the calcined phosphates of iron, silver and chromium.

REFERENCES:
patent: 3948959 (1976-04-01), Cavaterra et al.
patent: 4355176 (1982-10-01), Daniel
patent: 4374270 (1981-12-01), Ruszala et al.

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