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AssigneeGulf Research & Development Company
InventorsJohn J. Stanulonis, Joseph A. Tabacek, Roger F. Vogel
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An aqueous, alkaline impregnating solution for the one-step impregnation of fluorine, nickel and molybdenum onto a catalyst support is provided by admixing nickel fluoride, preferably an ammoniacal solution of nickel fluoride and an ammoniacal solution of Mo.sup.+VI to form a compatible impregnating solution consisting essentially of NH.sub.4.sup.+, Ni.sup.++, Mo.sup.+VI and F.sup.-. Nickel and fluorine ions are present in a ratio of substantially 1 to 2. The use of nickel fluoride in a predissolved ammoniacal solution for admixture with the ammoniacal solution of the Mo.sup.+VI renders the resulting impregnating solution highly suitable for impregnation of fluorine, nickel and molybdenum onto a catalyst support by the incipient wetness technique in one-step. The catalyst produced using the present impregnating solution is highly active for hydrotreating lubricating oils.
A process for the formation of an aqueous, alkaline impregnating solution for the one-step impregnation of nickel and molybdenum onto a catalyst support, which process consists essentially of admixing
An aqueous, alkaline impregnating solution for the one-step impregnation of fluorine, nickel and molybdenum onto a catalyst support, which consists essentially of an alkaline admixture of an ammoniacal solution of nickel fluoride and Mo.sup.+VI, said solution consisting essentially of NH.sub.4.sup.+, F.sup.-, Ni.sup.++ and Mo.sup.+VI in a compatible solution in amounts sufficient to produce a supported catalyst composite containing between about 2 and about 8 weight percent nickel, between about 8 and about 25 weight percent molybdenum and between about 1 and about 5 weight percent fluorine based upon the total catalyst composite when using the one-step, incipient wetness technique.
Dependencies are inferred from the claim text.