Patent ID: 8377289
Filing Date: 2013-02-19
Classification: B01J,C10G

Abstract:
1. A composite metal oxide catalyst, which is comprised of at least one type of Group VIII metal and at least two types of Group VIB metals, wherein the molar ratio of the at least one type of Group VIII metal to the at least two types of Group VIB metals is from 1:9 to 9:1 and among the at least two types of Group VIB metals, the molar ratio of the 2 largest contents of the metals is from 1:5 to 5:1, wherein the composite metal oxide catalyst is produced by a process comprising the steps of: a) adding a basic carbonate of the Group VIII metal into water to form a suspension with the basic carbonate concentration of from 0.1 mol/L to 0.9 mol/L, wherein the Group VIII metal is Ni, and the basic carbonate of the Group VIII metal has a layered structure; b) adding soluble salts of the Group VIB metals into water to form a solution with the metal ion concentration of from 0.03 mol/L to 0.3 mol/L, adding a surfactant to the solution such that the surfactant in the solution has a concentration of from 1 wt % to 5 wt %, and heating the solution to a temperature of from 50° C. to 250° C. under stirring; c) adding the suspension obtained in step a) into the solution in step b) and reacting at a temperature of 50° C. to 250° C. for 4 to 25 hours; and d) filtering, washing and drying the product obtained in step c) to obtain the target product.