SOLID-ACID CATALYST AND ITS PRODUCTION

摘要

PURPOSE:To obtain a solid-acid catalyst hardly suffering from deactivation by having a compound of W or Mo added to or supported by zirconium oxide in a specified proportion and the making the catalyst highly acidic. CONSTITUTION:Tungsten or molybdenum compound of 1-40wt.% in terms of its metal weight is added to or supported by zirconium hydroxide or amorphous zirconium oxide. Then, it is baked at 500-1,000 deg.C and made its acidity to be stronger than pH11.9. The solid-acid catalyst thus obtained hardly suffers from deactivation in such reactions as decomposition, a isomerization and alkylation of hydrocarbons etc., and it is possible to carry out miscellaneous reactions in mild reaction conditions.