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

1981-12-07

1983-02-15

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

252470, 252472, 2604055, 560214, C07C 51377, C07C 5705, C07C 67317, C07C 6954

Patent

active

043742700

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 oxides of iron and at least two members selected from the group consisting of antimony, niobium, tantalum and tungsten.

REFERENCES:
patent: 3845156 (1974-10-01), Farha
patent: 3948959 (1976-04-01), Cavaterra et al.

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