Attrition resistant catalysts

Details Attrition resistant catalysts Attrition resistant catalysts

1979-05-29

1981-02-17

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252456, 252458, 252477R, B01J 2100, B01J 2316

Patent

active

042513936

ABSTRACT:
Catalysts having improved attrition resistance are produced by incorporating a substantially uniform appearing coating of completely calcined, catalytically active oxide material onto an inert porous support containing sorbed aqueous silica sol. Such catalysts are useful in the gas phase oxidation of unsaturated aldehydes to unsaturated acids, especially acrolein to acrylic acid.

REFERENCES:
patent: 2941958 (1960-06-01), Connor, Jr. et al.
patent: 4077912 (1978-03-01), Dolhyj et al.
patent: 4107085 (1978-08-01), Sasaki et al.
patent: 4157315 (1979-06-01), Michels et al.

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