Dispersed group VIB metal sulfide catalyst promoted with Group V

Details Dispersed group VIB metal sulfide catalyst promoted with Group V Dispersed group VIB metal sulfide catalyst promoted with Group V

1985-08-21

1989-04-25

Chaudhuri, Olik

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

Catalyst or precursor therefor

Sulfur or compound containing same

502221, B01J 27047, B01J 27051

Patent

active

048248215

ABSTRACT:
A process for the preparation of a dispersed Group VIB metal sulfide catalyst which is promoted with a Group VIII metal for use in hydrocarbon oil hydroprocessing comprising dissolving a Group VIB metal compound, such as molybdenum oxide or tungsten oxide, with ammonia to form a water soluble compound such as aqueous ammonium molybdate or ammonium tungstate. The aqueous ammonium molybdate or ammonium tungstate is sulfided in a plurality of sulfiding steps at increasing temperatures. A compound containing a Group VIII metal is added to any sulfiding step in preference to the Group VIB metal dissolving step. The catalyst slurry and feed oil can then be passed to a hydroprocessing reactor.

REFERENCES:
patent: 4243553 (1981-01-01), Naumann et al.
patent: 4243554 (1981-01-01), Naumann et al.
patent: 4285804 (1981-08-01), Jacquin et al.
patent: 4431747 (1984-01-01), Seiver et al.
patent: 4514517 (1985-04-01), Ho et al.
patent: 4710486 (1987-12-01), Lopez et al.

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