MIXED OXIDES OF TRANSITION METAL, HYDROTREATMENT CATALYSTS OBTAINED THEREFROM, AND PREPARATION PROCESS COMPRISING SOL-GEL PROCESSES

摘要

Mixed oxides of formula (A)X a Y b Z c O d .pC (A)or sulfided metal catalysts useful as hydrotreating catalysts and obtained bythesulfidation of mixed oxide precursors of formula (A) or of mixed oxides offormula (A), inshaped form with a binder, where X = Ni, Co or a mixture thereof, Y = Mo, W oramixture thereof, Z = Si, Al or a mixture thereof, C is a nitrogenated compoundN or anorganic residue thereof, a, b, c, d = number of moles, p = wt.-% of C, a, b,c, d 0, a/b= 0.3 and = 2, (a+b)/c =0.3 and 10, d = (2a+6b+Hc)/2wherein H = 4 when Z = Si or H= 3 when Z = Al and p = 0 and =40%. It is now possible to embodya particular andcalibrated sol-gel synthesis.