초록 ▼

The invention provides a method for preparing catalysts, containing metals of groups VI and VIII on a carrier. The metals of groups VI and VIII metals are introduced in the form of a compound of formula M.sub.x A B.sub.12 O.sub.40 in which M is cobalt and/or nickel, A is phosphorus, silicon and/or b

The invention provides a method for preparing catalysts, containing metals of groups VI and VIII on a carrier. The metals of groups VI and VIII metals are introduced in the form of a compound of formula M.sub.x A B.sub.12 O.sub.40 in which M is cobalt and/or nickel, A is phosphorus, silicon and/or boron, B is molybdenum and/or tungsten and x is 2 or more, 2.5 or more, or 3 or more depending on whether A is respectively phosphorus, silicon or boron. The catalysts thus obtained are useful for hydro-treating hydrocarbon feedstocks.

대표청구항 ▼

[ What is claimed is:] [1.] Process for preparing a water-treatment catalyst, comprising a first phase of impregnating a support with an aqueous solution of at least one compound which combines at least one metal from group VI and at least one metal from group VIII in the same molecule, and at least

[ What is claimed is:] [1.] Process for preparing a water-treatment catalyst, comprising a first phase of impregnating a support with an aqueous solution of at least one compound which combines at least one metal from group VI and at least one metal from group VIII in the same molecule, and at least a second phase of drying and activating the impregnated support, wherein the compound which combines the metals from groups VI and VIII corresponds to the formula:EQU M.sub.x AB.sub.12 O.sub.40 (I) which M is cobalt and/or nickel, A is chosen from phosphorus, silicon and boron, B is molybdenum and/or tungsten and x takes values of 2 or more if A is phosphorus, values of 2.5 or more if A is silicon, and values of 3 or more if A is boron.