Cs-substituted H3PW12O40 on Palygorskite Clay for Esterification of Oleic Acid with Ethanol
文献类型: 外文期刊
第一作者: Zhang, L. X.
作者: Zhang, L. X.;Jin, Q. Z.;Shan, L.;Liu, Y. F.;Huang, J. H.;Wang, X. G.;Zhang, L. X.
作者机构:
关键词: esterification;ethyl oleate;oleic acid;palygorskite;12-phosphotungstic acid
期刊名称:ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS ( 影响因子:3.447; 五年影响因子:2.406 )
ISSN: 1556-7036
年卷期: 2012 年 34 卷 14 期
页码:
收录情况: SCI
摘要: Cs2.5H0.5PW12O40 supported on palygorskite (CsHPW/Pa) were synthesized and characterized by Fourier transform infrared spectroscopy, X-ray diffraction, and transmission electron microscopy. CsHPW inside CsHPW/Pa was retained intact Keggin anion and highly and uniformly supported on the fiber of Pa, which performed stable catalytic activity for esterification of oleic acid with ethanol. Under optimum conditions, the following amounts were reached: 20%CsHPW/Pa catalyst, 80 degrees C, 8 h, molar ratio (ethanol to oleic acid) 10:1, catalyst amount 8 wt% (in relation to the oleic acid mass), removal water agents amount 50 g/mol (basis on the oleic acid molar), and the conversion of oleic acid reached 73%.
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