PREPARATION OF SOLID ACID CATALYST

摘要

PROBLEM TO BE SOLVED: To provide a method of preparing a molded solid acid catalyst having a high activity equivalent to or higher than that of a powder catalyst even though it is made as a solid acid catalyst molding containing a sulfuric acid constituent. SOLUTION: (a) Zirconium hydroxide and/or hydrate and aluminum hydrate having a boemite structure are mixed with each other and a molding is formed. (b) Then, the molding is burned at a temperature at which tetragonal zirconia is obtained. (c) The molding is made to carry a sulfuric acid constituent containing compound and is burned at a temperature of 300 deg.C or higher and lower than 700 deg.C.