Synthesis of Ethyl Oleate Catalyzed by Solid Superacid SO42–/TiO2/La3+

Chemical Research in Chinese Universities ›› 2010, Vol. 26 ›› Issue (1): 92-97.

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Synthesis of Ethyl Oleate Catalyzed by Solid Superacid SO₄^2–/TiO₂/La³⁺

YANG Lei^1*, GUO Hui² and HUANG Yu-dong²

1. Academy of Fundamental & Interdisciplinary Sciences,
2. School of Chemical Engineering & Technology, Harbin Institute of Technology, Harbin 150001, P. R. China

Received:2009-06-30 Revised:2009-08-26 Online:2010-01-04 Published:2010-03-29
Contact: YANG Lei, E-mail: leiyang84@vip.sina.com
Supported by:
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) and the Program of Excellent Team in HIT, China.

Abstract

Abstract:

Rare-earth compound solid superacid SO₄^2–/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 SO₄^2–/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%.

Key words: Solid superacid; Ethyl oleate; Esterification

YANG Lei*, GUO Hui and HUANG Yu-dong. Synthesis of Ethyl Oleate Catalyzed by Solid Superacid SO₄^2–/TiO₂/La³⁺[J]. Chemical Research in Chinese Universities, 2010, 26(1): 92-97.

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Synthesis of Ethyl Oleate Catalyzed by Solid Superacid SO₄^2–/TiO₂/La³⁺

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