HYDROCONVERSION PROCESSES EMPLOYING MULTI-METALLIC CATALYSTS AND METHOD FOR MAKING THEREOF

摘要

A catalyst precursor composition and methods for making such a catalystprecursor are disclosed. The catalystprecursor comprises at least a promoter metal selected from Group VIII, GroupIIB, Group IIA, Group IVA and combinations thereofhaving an oxidation state of +2 or +4, at least one Group VIB metal having anoxidation state of +6, and at least one organicoxygen-containing ligand. Catalysts prepared from the sulfidation of suchcatalyst precursors are used in the hydroprocessing of hydrocarbonfeeds.