Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1979-08-13
1981-03-10
Dees, Carl F.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
B01J 2910
Patent
active
042552885
ABSTRACT:
A catalyst comprising an ultrastable Y-type crystalline aluminosilicate zeolite, alumina, zirconia and a hydrogenation component is prepared by specified methods. The catalysts are suitable as hydrocarbon hydroprocessing catalysts.
REFERENCES:
patent: Re29771 (1978-09-01), Cull et al.
patent: 3694378 (1972-09-01), Ebregi
patent: 3781199 (1973-12-01), Ward
patent: 3840473 (1974-10-01), Bewther et al.
patent: 3928233 (1975-12-01), Young
patent: 4120825 (1978-10-01), Ward
patent: 4151119 (1979-04-01), Gladrow
Cull Neville L.
Sawyer Willard H.
Dees Carl F.
Exxon Research & Engineering Co.
Gibbons Marthe L.
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