Silica-modified alumina and process for its preparation

Details Silica-modified alumina and process for its preparation Silica-modified alumina and process for its preparation

1987-03-11

1988-01-26

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Phosphorus or compound containing same

502208, 502209, 502211, 502213, 502214, 502216, 502218, 502219, 502220, 502222, 502241, 502242, 502243, 502244, 502246, 502247, 502254, 502255, 502258, 502259, 502260, 502263, B01J 2104, B01J 2108

Patent

active

047216964

ABSTRACT:
A composition of matter comprising alumina as the major component and silica as a minor component is prepared by a process comprising sequential addition of solutions of aluminum salt and alkali metal aluminate, addition of a solution of alkali metal silicate to dispersed alumina hydrogen and heating formed alumina-silica hydrogel under dehydrating conditions. The thus prepared composition of matter, optionally promoted with at least one transition metal compound, can be used as a catalyst for hydrotreating substantially liquid hydrocarbon-containing feed streams which also contain sulfur and metal compounds as impurities.

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patent: 3346509 (1967-10-01), Stewart
patent: 3905916 (1975-09-01), Riley et al.
patent: 3923692 (1975-12-01), Braithwaite et al.
patent: 3925253 (1975-12-01), Stephens
patent: 4134856 (1979-01-01), Itoh et al.
patent: 4154812 (1979-05-01), Sanchez et al.
"Control of the Pore Structure of Porous Alumina" by T. Ono, Y. Ohguchi and O. Togari; 1983, published in Preparation of Catalysts III, Elsivier Science Publishers, pp. 631-641.

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