Preparation method for a catalyst

Abstract

This invention is concerned with catalysts, particularly those useful for hydroconversion, preferably hydrocracking, a process for using the catalysts, and a method for manufacturing the catalysts, which comprises: A. forming a mixture comprising an aqueous gelatinous precipitate containing in intimate admixture a first component, said precipitate comprising an inorganic oxide or precursor thereof; B. forming a catalyst precursor comprising at least one organic-metal-compound precipitate and said gelatinous precipitate by reacting said first component with a second component, said reaction being effected by intimately intermixing said mixture with said second component, said components belonging to different groups, and being selected from the following groups: A. a first group consisting of water soluble transition metal series compounds; and B. a second group consisting of water soluble organic gravimetric reagents for said transition series compounds; C. converting said catalyst precursor to a catalyst, said converting comprising at least a step of maintaining said precursor at a temperature in the range from about 500.degree.F to 1800.degree.F for a period in the range from about 1 to 48 hours. The preferred catalyst comprises a noble metal, preferably palladium on a silica-alumina support, particularly useful for hydrocracking processes.

Dependencies are inferred from the claim text.