Decomposition Reactions of Diisobutylene with Zeolite Catalysts

Abstract

The decomposition reaction of diisobulylene catalyzed by synthetic zeolites containing Na, Mg Ca Sr, Ba and Cd cations was studied under an atmospheric pressure using a flow apparatus. Cracking activity of these crystalline aluminosilicate catalysts, especially of Cd-X, exceeded that of conventional silica-alumina catalyst The catalytic bebavior of the divalent cation zeolite bears a resemblance to that of silica-alumina. but the product formed with NaX consisted virtually of isobutylene and unreacted.
The acidities of zeolite catalysts measured by n-butyl amine titration had linear relationship to the cracking activeties of diisobutylene.