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2005•Journal of Shihezi UniversityRequires access

Studies on Catalytic Performance of Solid Superacid S_2O_8~(2-)/TiO_2 in the Esterification

Ling Wei

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Abstract

The catalytic synthesis of isoamyl acetate by reaction of acetic acid with isoamyl alcohol using S_2O_8~(2-)/TiO_2 as catalyst was studied.The activity and stability of the catalyst were studied.The results show that the catalytic selectivity amounts to 95%,while 1.00mol/L(NH_4)_2S_2O_8 is added and calcinated at 450～500℃.The factors influencing the synthesis were discussed.The optimum conditions are that molar ratio of isoamyl alcohol to acetic acid is 1.2∶1,the quantity of catalyst is equal to 1.0% feed stock,the reaction temperature is 110～120℃,and the reaction time is 1.5 h.S_2O_8~(2-)/TiO_2 is an excellent catalyst for synthetizing isoamyl acetate.

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The catalytic synthesis of isoamyl acetate by reaction of acetic acid with isoamyl alcohol using S_2O_8~(2-)/TiO_2 as catalyst was studied.The activity and stability of the catalyst were studied.The results show that the catalytic selectivity amounts to 95%,while 1.00mol/L(NH_4)_2S_2O_8 is added and calcinated at 450～500℃.The factors influencing the synthesis were discussed.The optimum conditions are that molar ratio of isoamyl alcohol to acetic acid is 1.2∶1,the quantity of catalyst is equal to 1.0% feed stock,the reaction temperature is 110～120℃,and the reaction time is 1.5 h.S_2O_8~(2-)/TiO_2 is an excellent catalyst for synthetizing isoamyl acetate.

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Available abstract

The catalytic synthesis of isoamyl acetate by reaction of acetic acid with isoamyl alcohol using S_2O_8~(2-)/TiO_2 as catalyst was studied.The activity and stability of the catalyst were studied.The results show that the catalytic selectivity amounts to 95%,while 1.00mol/L(NH_4)_2S_2O_8 is added and calcinated at 450～500℃.The factors influencing the synthesis were discussed.The optimum conditions are that molar ratio of isoamyl alcohol to acetic acid is 1.2∶1,the quantity of catalyst is equal to 1.0% feed stock,the reaction temperature is 110～120℃,and the reaction time is 1.5 h.S_2O_8~(2-)/TiO_2 is an excellent catalyst for synthetizing isoamyl acetate.

Key concepts: Isoamyl alcohol, Isoamyl acetate, Catalysis, Superacid, Acetic acid, Molar ratio, Chemistry, Selectivity

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