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8705483 
Journal Article 
Transformation of cyclic hydrocarbons on H, Ca, and La forms of zeolites 
Kharlamov, VV; Starostina, TS; Minachev, KM 
1982 
1 
Bulletin of the Academy of Sciences of the USSR. Division of Chemical Science
ISSN: 0568-5230 
31 
10 
2017-2021 
English 
1. The transformation of cyclohexane, cyclohexene, and 1,4-cyclohexadiene was studied on H, Ca, and La forms of type Y zeolites, erionite, and mordenite as well as on amorphous aluminosilicate, γ-aluminum oxide, and silicon dioxide in a pulse microreactor. These hydrocarbons undergo cracking, isomerization, dispraportionation, and dehydrogenation at 200-500°C. 2. The catalysts studied fall into two groups relative to the methylcyclopentane/cyclohexane ratio in the cyclohexene transformation products: the catalysts without acid sites (Na forms of zeolites and SiO2) have ratios less than unity, while the catalysts with acid sites (multiply charged cationic and H forms of zeolites and amorphous aluminosilicate) have ratios above unity. 3. The dehydrogenating activity of the catalysts studied increases in going from non-acidic to acidic catalysts. 1983 Plenum Publishing Corporation.