| abstract |
A process for upgrading a hydrocarbon feedstock by hydroprocessing using multi-metallic catalysts is disclosed. In one aspect, the invention relates to hydroprocessing of a hydrocarbon feedstock using a catalyst derived from a catalyst precursor of the formula A v [(M P )(OH) x (L) n y ] z (M VIB O 4 ), wherein A comprises an alkali metal cation, an ammonium, an organic ammonium or a phosphonium cation, M P is selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, L is an organic, oxygen-containing ligand, M VIB is at least one of Group VIB metals, and the atomic ratio of M VIII :M VIB is between 100:1 and 1:100. |