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首页> 外文期刊>Energy sources >The Synthesis of Methyl Oleate Catalyzed by Phosphotungstic Acid Immobilized on the Functionalized Palygorskite
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The Synthesis of Methyl Oleate Catalyzed by Phosphotungstic Acid Immobilized on the Functionalized Palygorskite

机译：固定在功能化坡缕石上的磷钨酸催化合成油酸甲酯

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摘要

Esterification of oleic acid with methanol was investigated using tungstophosphoric acid (H_3PW_(12)O_(40)) immobilized on the 3-aminopropyltriethoxysilane (H_2N(CH_2)_3Si(OC_2H_5)_3) functionalized palygorskite. Among different loading catalysts, 15% (wAv) H_3PW_(12)O_(40) immobilized onto functionalized palygorskite showed stable and substantially high activity with about 90% oleic acid conversion. Immobilized catalysts were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, and temperature programmed desorption of NH_3 for their surface element compositions and chemical states, crystallization, and acid strength, respectively. Characterization results indicated that H_3PW_(12)O_(40) was chemically and uniformly dispersed on modified palygorskite.
机译：使用固定在3-氨基丙基三乙氧基硅烷（H_2N（CH_2）_3Si（OC_2H_5）_3）功能化坡缕石上的钨磷酸（H_3PW_（12）O_（40））研究了甲醇对油酸的酯化反应。在不同的负载催化剂中，固定在功能化坡缕石上的15％（wAv）H_3PW_（12）O_（40）表现出稳定且明显较高的活性，约有90％的油酸转化率。通过X射线光电子能谱，X射线衍射和NH_3的程序升温脱附来表征固定化催化剂的表面元素组成，化学状态，结晶度和酸强度。表征结果表明，H_3PW_（12）O_（40）化学均匀地分散在改性坡缕石上。

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  • 来源
    《Energy sources》 |2012年第12期|p.1037-1045|共9页
  • 作者

    L. X. ZHANG; Q. Z. JIN; J. H. HUANG; Y. F. LIU; L. SHAN; X. G. WANG;

  • 作者单位

    Institute of Agricultural Products Processing, Henan Academy of Agriculture Sciences, Zhengzhou, Henan Province, P. R. China State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, P. R. China;

    State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, P. R. China;

    State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, P. R. China;

    State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, P. R. China;

    State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, P. R. China;

    State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China;

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  • 正文语种 eng
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  • 关键词

    3-aminopropyltriethoxysilane; esterification; oleic acid; palygorskite; phosphotungstic acid;

    机译：3-氨基丙基三乙氧基硅烷;酯化油酸坡缕石磷钨酸;

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