Catalyst for sulfuric acid contact process

Details Catalyst for sulfuric acid contact process Catalyst for sulfuric acid contact process

1975-08-14

1977-03-01

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252456, 252457, 423535, B01J 1134, C01B 1778

Patent

active

RE0291455

ABSTRACT:
A catalyst for oxidation of SO.sub.2 to SO.sub.3, which can be used as a fluidized bed catalyst. An abrasive resistant support is formed by adding silica filler and a clay binder to a silica sol; adding hydrated magnesium oxide to the resulting mixture, to form a gellable composition; dispersing the gellable composition in a liquid to form gel spheres; calcining the spheres; and treating them with an acid to remove acid soluble components. After the acid treatment, the support is impregnated with an alkali metal vanadate solution and calcined.

REFERENCES:
patent: 2280650 (1942-04-01), Kassel
patent: 2698251 (1954-12-01), Shea et al.
patent: 2727868 (1955-12-01), Simpson et al.
patent: 2900349 (1959-08-01), Schwartz
patent: 3186794 (1965-06-01), Davies
patent: 3216953 (1965-11-01), Krempff
patent: 3275406 (1966-09-01), Krempff
patent: 3328124 (1967-06-01), Mays et al.

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