Sulfuric acid contact process

Details Sulfuric acid contact process Sulfuric acid contact process

1973-08-03

1976-01-20

Vertiz, Oscar R.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423522, C01B 1778

Patent

active

039339912

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: 1371004 (1921-03-01), Slama
patent: 2449190 (1948-09-01), Belchetz
patent: 2799560 (1957-07-01), Davies
patent: 3216953 (1965-11-01), Krempff
patent: 3275406 (1966-09-01), Krempff

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