Producing unsaturated aliphatic acids

Details Producing unsaturated aliphatic acids Producing unsaturated aliphatic acids

1976-06-07

1977-08-16

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252435, 252464, 252467, 252468, 252469, 252470, 260530N, B01J 2322, B01J 2328, B01J 2330, B01J 2718

Patent

active

040425339

ABSTRACT:
The present invention relates to a process for the production of unsaturated aliphatic acids and the catalyst therefor, by the vapor phase oxidation of the corresponding unsaturated aliphatic aldehydes with molecular oxygen, optionally in the presence of steam, in the presence of an oxidation catalyst consisting of the oxides of the elements molybdenum, vanadium, and tungsten, plus at least one of the oxides selected from the group consisting of rhenium, and titanium and optionally one or more of the oxides of the elements manganese, iron, copper, tin, aluminum, cobalt, nickel, phosphorus, zinc, bismuth, silver, cadmium, niobium, arsenic, chromium, the alkali and the alkaline earth elements.

REFERENCES:
patent: 3875220 (1975-04-01), White et al.
patent: 3956377 (1976-05-01), Dolhyj et al.
patent: 3997600 (1976-12-01), Ferlazzo et al.

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