Process for the preparation of catalysts for the hydrotreatment

Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants

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252448, 252455R, 252465, B01J 2704, B01J 2104, B01J 2108, B01J 2384

Patent

active

039923240

ABSTRACT:
A process for producing catalysts to hydrotreat petroleum fractions containing, after thermal treatment, an oxide or a sulphide of a Group VIII metal and an oxide or a sulphide of a Group VI B metal and a support consisting essentially of alumina, said process comprising preparing said catalyst in the form of beads by agglomeration of alumina by polymerizing in a hot and substantially water-immiscible fluid, an aqueous mixture which consists essentially of alumina hydrogel, alumina hydrosol and a water-soluble monomer whose uncrossed-linked polymer is water-soluble or forms a gel and then by dispersing said mixture as droplets, in a polymerization zone.

REFERENCES:
patent: 2867581 (1959-01-01), Nahin
patent: 2875159 (1959-02-01), Erickson
patent: 3705861 (1972-12-01), Oguchi et al.
patent: 3776987 (1973-12-01), Grimes et al.

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