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

1981-11-09

1982-10-19

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

252435, 252437, 560214, C07C 51377, C07C 5705, C07C 67317, C07C 6954

Patent

active

043551769

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 niobium.

REFERENCES:
patent: 3948959 (1976-04-01), Cavaterra et al.
patent: 4298755 (1981-11-01), Daniel et al.

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