CATALYST FOR TERTIARY OLEFINS PRODUCTION Russian patent published in 1996 - IPC

FIELD: catalytic chemistry. SUBSTANCE: catalyst has silica dioxide modified by aluminum oxide in amount of 0.3 1.0 mass %. Catalyst is produced by impregnation of silica dioxide with aluminum salts solution. Then it is dried and calcinated. Calcinated catalyst is subjected to cleansing by acid water solution or by water solution displaying acidity under thermal thermal decomposition within 0.5 - 24 hours under temperature of 20 - 100 C. Water solution is used with molar concentration 0.05 - 0.5 in amount of 1 to 20 volumes of cleansed substance. Then it is dried and calcinated. As water solution displaying acidity during thermal decomposition they preferably use ammonia salts water solution (ammonium acetate or ammonium propione or ammonium chloride). EFFECT: simplification of process. 3 cl, 2 tbl