| 摘要 |
FIELD: catalytic processes. SUBSTANCE: gel, whose pore size is controlled and whose surface area is at least 500 sq.m/g and silica to alumina mole ratio is 30: 1, is prepared by hydrolysis and gelation of tetraalkylammonium hydroxide, aluminium trialkoxide, and aluminium tetraalkylorthosilicate by treating these compounds with any alcohols produced in the stage of hydrolysis under atmospheric pressure and at temperature equal or higher than boiling temperature without removing alcohols or essentially removing them from reaction mixtures. Resulting gel, after drying and calcination, is suitable for use as an active catalyst in hydrocarbon transformation reactions such as isomerization and oligomerization of light olefins, for instance, propylene polymerization yielding valuable liquid hydrocarbons applicable to gasoline and reactive engine fuels. EFFECT: high-activity catalyst prepared. 9 cl, 5 dwg |
