Bulk catalyst composition comprising bulk metal oxide particles

A bulk catalyst composition comprising bulk metal oxide, sulfide, or a combination of oxide and sulfide particles comprising (i) dispersible nanoparticles having a dimension of less than about 1 μm upon dispersion in a liquid, (ii) at least one Group VIII non-noble metal compound, and (iii) at least one Group VIB metal compound, wherein the bulk metal oxide particles are prepared by combining in a reaction mixture the nanoparticles, at least one Group VIII non-noble metal compound, at least one Group VIB metal compound, and a protic liquid, and reacting the at least one Group VIII non-noble metal compound and the at least one Group VIB metal compound in the presence of the nanoparticles, wherein said nanoparticles are different in composition from said at least one Group VIII non-noble metal compound and said at least one Group VIB metal compound.

A bulk catalyst composition comprising bulk metal oxide and/or sulfide particles, wherein the bulk metal particles comprise:

• from about 50 wt. % to about 99.5 wt. % (calculated as metal oxide weight relative to the total weight of the bulk metal oxide and/or sulfide catalyst particles) of at least one Group VIII non-noble metal and at least one Group VIB metal, the metals being the form of oxides and/or sulfides, and
• from about 0.5 wt. % to about 15 wt. % (relative to the total weight of the bulk metal particles) of nanoparticles having a dimension of less than 1 μm upon dispersion in a liquid, wherein said nanoparticles are different in composition from said at least one Group VIII non-noble metal compound and said at least one Group VIB metal compound.