Method of producing an extruded catalyst composition

Details Method of producing an extruded catalyst composition Method of producing an extruded catalyst composition

1976-09-10

1977-07-19

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252463, 252461, B01J 2316, B01J 2324, B01J 2100

Patent

active

040367843

ABSTRACT:
This invention relates to an extruded composition characterized by its method of preparation. A finely divided refractory inorganic oxide, preferably an alpha-alumina monohydrate, is admixed with a peptizing agent and sufficient water to produce a mixture which has a weight loss on ignition at 900.degree. C. of from about 50 to about 70%. The mixture is subjected to shear-mixing, the intensity or severity of the shear-mixing being characterized by an energy input equivalent to from about 15 to about 120 watt-hours per pound of dry refractory inorganic oxide contained in said mixture over a period of from about 0.5 to about 5 minutes. The resulting dough is subsequently extruded and the extrudate calcined. The product is particularly useful as a hydrotreating catalyst in combination with a Group VIB and Group VIII metal component.

REFERENCES:
patent: 3213040 (1965-10-01), Pedigo et al.
patent: 3661805 (1972-05-01), Horvath
patent: 3872030 (1975-03-01), Feins et al.
patent: 3873470 (1975-03-01), Conway et al.
patent: 3894966 (1975-07-01), Conway

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