Silica-alumina hydrogel catalyst

Details Silica-alumina hydrogel catalyst Silica-alumina hydrogel catalyst

1979-03-12

1980-10-07

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252455R, 252455Z, B01J 3702, B01J 2904, B01J 2906

Patent

active

042267439

ABSTRACT:
A dense, attrition resistant catalyst is prepared by precipitating a silica alumina hydrogel at high pH, and subsequently reacting the alkaline hydrogel with sufficient acid aluminum salt at a pH below 4 to obtain an acidic hydrogel slurry. The slurry is then processed into a catalyst by spray drying, washing and ion exchanging. The catalyst may include substantial quantities of clay and/or crystalline aluminosilicate zeolites.

REFERENCES:
patent: 3260681 (1966-07-01), Sanford et al.
patent: 3414525 (1968-12-01), Michalko
patent: 3872029 (1975-03-01), Takase et al.
patent: 3912619 (1975-10-01), Magee, Jr. et al.
patent: 3974099 (1976-08-01), Lussier et al.
patent: 4144194 (1979-03-01), Guidry

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