Patent ID: 7947623

Claim:
A process for preparing a catalyst composition, comprising the steps: reacting at least one Group VIB metal compound (“M”) with at least a promoter metal compound L selected from a non-noble Group VIII metal, a Group VIIIB metal, a Group VIB metal, a Group IVB metal, and a Group IIB metal to obtain an intermediate mixture; sulfiding the intermediate mixture with a sulfiding agent forming a catalyst precursor; and mixing the catalyst precursor with a hydrocarbon compound to form a hydroprocessing catalyst composition having formula (M t ) a (L u ) b (S v ) d (C w ) e (H x ) f (O y ) g (N z ) h , wherein subscripts a and b each are suitably greater than 0 such that 0=<b/a=<5, the molar ratio of the sulfiding agent to the at least one Group VIB metal compound M and the at least a promoter metal compound L is sufficient for subscript d to have a value of ( a+ 0.5 b )<= d <=(5 a+ 2 b ), 0 <=e<= 11( a+b ), 0 <=f<= 7( a+b ), 0 <=g<= 5( a+b ), 0 <=h<= 0.5( a+b ), t, u, v, w, x, y, z, each representing total charge for each of: M, L, S, C, H, O and N, respectively, ta+ub+vd+we+xf+yg+zh= 0; and wherein the catalyst has an X-ray powder diffraction pattern with at least one broad diffraction peak at any of Bragg angles: 8 to 18°, 32 to 40°, and 55 to 65° (from 0 to 70° 2θ scale).