| Synthesis of Ethyl Oleate Catalyzed by Solid Superacid SO4^2-/TiO2/La3＋ |
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| 作者单位： | [1]Academy of Fundamental ＆ Interdisciplinary Sciences [2]School of Chemical Engineering ＆ Technology, Harbin Institute of Technology, Harbin 150001, P. R. China |
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| 基金项目： | Supported by the National Scientific Research Innovation Foundation in Harbin Institute of Technolgy,China(No.HIT.NSRIF.2009081);;the Program of Harbin Subject Chief Scientist,China(No.2009RFXXN047);;the Program of Excellent Team in HIT,China |
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| 摘 要： | Rare-earth compound solid superacid SO42-/TiO2/La3+ was prepared. Its catalytic activity was examined under different synthetic conditions for the esterification of propanoic acid and n-butyl alcohol as probing reaction. The optimum conditions were also found, which were the pH=8, the depositing time was 24 h, the mass fraction of La(NO3)3 used in solid superacid was 5%, the concentration of H2SO4 was 1.25 mol/L, the soaking time in H2SO4 was 16 h and the calcining temperature was 500 °C. The ethyl oleate was synthesized from oleic acid and ethanol in the presence of SO42-/TiO2/La3+. The optimum reaction conditions were obtained which were the reaction time was 6 h, molar ratio of oleic acid to ethanol was 1:4 and the mass fraction of catalyst was 4%.
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| 关 键 词： | 复合固体超强酸 油酸乙酯 催化合成 硫酸浓度 最佳反应条件 存放时间 质量分数 合成条件 |
Synthesis of Ethyl Oleate Catalyzed by Solid Superacid SO_4~(2-)/TiO_2/La~(3+) |
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| YANG Lei,GUO Hui,HUANG Yu-dong. Synthesis of Ethyl Oleate Catalyzed by Solid Superacid SO_4~(2-)/TiO_2/La~(3+)[J]. Chemical Research in Chinese University, 2010, 26(1): 92-97 |
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| Authors: | YANG Lei GUO Hui HUANG Yu-dong |
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| Abstract: | Rare-earth compound solid superacid SO_4~(2-)/TiO_2/La~(3+) was prepared.Its catalytic activity was examined under different synthetic conditions for the esterification of propanoic acid and rc-butyl alcohol as probing reaction.The optimum conditions were also found,which were the pH=8,the depositing time was 24 h,the mass fraction of La(NO_3)_3 used in solid superacid was 5%,the concentration of H_2SO_4 was 1.25 mol/L,the soaking time in H_2SO_4 was 16 h and the calcining temperature was 500 ℃.The ethyl oleate was synthesized from oleic acid and ethanol in the presence of SO_4~(2-)/TiO_2/La~(3+).The optimum reaction conditions were obtained which were the reaction time was 6 h,molar ratio of oleic acid to ethanol was 1:4 and the mass fraction of catalyst was 4%. |
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| Keywords: | Solid superacid Ethyl oleate Esterification |
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