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2007•Journal of East China Jiaotong UniversityRequires access

Study on the Solid Superacid SO_4~(2-)/ZrO_2-La_2O_3 Catalyzed Synthesis of Cyclohexene

Zhili Fang

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Abstract

The catalystic solid superacid SO2-4/ZrO2-La2O3 was prepared.Cyclohexene was synthesized from cyclohexanol in the presence of solid superacid SO2-4/ZrO2-La2O3.The factors influencing the synthetic processes were discussed and the best conditions were found out.The optimum conditions are:lanthanon ionic concentration 0.09mol·L-1;H2SO4 concentration 1.0mol·L-1;calcination temperature 500 ℃;calcination time 3 hr;the quantity of catalyst 5%;reaction temperature 180 ℃;reaction time 1 hr.It was found that the yield can reach over 80.66%.

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What this paper is about

The catalystic solid superacid SO2-4/ZrO2-La2O3 was prepared.Cyclohexene was synthesized from cyclohexanol in the presence of solid superacid SO2-4/ZrO2-La2O3.The factors influencing the synthetic processes were discussed and the best conditions were found out.The optimum conditions are:lanthanon ionic concentration 0.09mol·L-1;H2SO4 concentration 1.0mol·L-1;calcination temperature 500 ℃;calcination time 3 hr;the quantity of catalyst 5%;reaction temperature 180 ℃;reaction time 1 hr.It was found that the yield can reach over 80.66%.

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Available abstract

The catalystic solid superacid SO2-4/ZrO2-La2O3 was prepared.Cyclohexene was synthesized from cyclohexanol in the presence of solid superacid SO2-4/ZrO2-La2O3.The factors influencing the synthetic processes were discussed and the best conditions were found out.The optimum conditions are:lanthanon ionic concentration 0.09mol·L-1;H2SO4 concentration 1.0mol·L-1;calcination temperature 500 ℃;calcination time 3 hr;the quantity of catalyst 5%;reaction temperature 180 ℃;reaction time 1 hr.It was found that the yield can reach over 80.66%.

Key concepts: Superacid, Calcination, Cyclohexanol, Catalysis, Cyclohexene, Yield (engineering), Inorganic chemistry, Nuclear chemistry

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