| SO4^2--/La2 O3-ZrO2-HZSM-5催化合成柠檬酸酯 |
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| 引用本文： | 陈淑芬,甘黎明,尚秀丽,张春兰.SO4^2--/La2 O3-ZrO2-HZSM-5催化合成柠檬酸酯[J].兰州石化职业技术学院学报,2013(4):11-15. |
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| 作者姓名： | 陈淑芬 甘黎明 尚秀丽 张春兰 |
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| 作者单位： | 兰州石化职业技术学院石油化学工程系,甘肃兰州 |
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| 基金项目： | 甘肃省科学技术盱基金攻关项目（2GS085-A52-008-04）;甘肃省教育盱;懒助项目（0414-05） |
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| 摘 要： | 首次合成了固体超强酸催化剂SO4^2--/La2O3-ZrO2-HZSM-5,并用其合成了六种柠檬酸酯,分析了催化剂用量、焙烧温度、反应时间、醇酸比等因素对酯化率的影响。结果表明：500℃焙烧3 h所得催化剂活性最好,柠檬酸酯的酯化率可达91.5%以上,高碳醇的酯化率高于低碳醇的酯化率,且该催化剂具有良好的重复使用和再生能力。
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| 关 键 词： | SO4^2-- La2O3-ZrO2-HZSM-5 催化 酯化率 柠檬酸酯 |
Synthesis of Citrate Catalyzed by SO2-4 -/La2 O3-ZrO2-HZSM-5 |
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| CHEN Shu-fen,GAN Li-ming,SHANG Xiu-li,ZHANG Chun-lan.Synthesis of Citrate Catalyzed by SO2-4 -/La2 O3-ZrO2-HZSM-5[J].Journal of Lanzhou Petrochemical Vocational College of Technology,2013(4):11-15. |
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| Authors: | CHEN Shu-fen GAN Li-ming SHANG Xiu-li ZHANG Chun-lan |
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| Institution: | (Department of Petrochemical Engineering, Lanzhou Petrochemical College of Vocational Technology, Lanzhou 730060 , China) |
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| Abstract: | Carried lanthanum is used in catalytic synthesis of citrate for the first time, and 6 kinds of citrate are syn-thesized. The effects of catalyst amount, acid / molar rate, reaction time and the calcinations temperature of cata-lyst are investigated. The results indicate that the yield of citrate are excess of 91. 5% . On optimum conditions, the yield of citrates with higher alcohol esterification are higher than those of citrates with lower alcohol esterification. And the catalyst is reused and regenerated. |
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| Keywords: | SO2-4-/La2O3-ZrO2-HZSM-5 citrate Catalysis Yield of esterification |
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