Method for preparing hydrocarbon catalytic cracking catalyst com

Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component

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502 68, B01J 2906

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active

046312617

ABSTRACT:
A catalyst composition suitable for catalytic cracking of a heavy hydrocarbon oil containing large amounts of metal contaminants is prepared by the steps of spray-drying an aqueous slurry containing a flash calcined alumina obtained by contacting an aluminum hydroxide prepared Bayer's process with a hot air of 350.degree.-700.degree. C. for 5 seconds or less, clay being predominantly composed of silica and alumina, a precursor of a siliceous inorganic oxide and a crystalline aluminosilicate; washing this particle until the alkali metal content therein is reduced to 1.0 wt % or less as oxide; and thereafter incorporating a rare earth component in the particle.

REFERENCES:
patent: 3930987 (1976-01-01), Grand
patent: 3957689 (1976-05-01), Ostermaier et al.
patent: 4407735 (1983-10-01), Sawamura
patent: 4411771 (1983-10-01), Bambrick et al.
patent: 4480047 (1984-10-01), Beck et al.

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