| SO42-/SnO2-SiO2固体酸催化合成月桂酸甲酯 |
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| 引用本文： | 孟丽娜,田志茗.SO42-/SnO2-SiO2固体酸催化合成月桂酸甲酯[J].化工时刊,2011,25(8):17-19. |
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| 作者姓名： | 孟丽娜 田志茗 |
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| 作者单位： | 齐齐哈尔大学化学与化工学院,黑龙江齐齐哈尔,161006 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目(12511597) |
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| 摘 要： | 采用溶胶凝胶法制备了SO42-/SnO2- SiO2固体催化剂,通过NH3 - TPD测得此催化剂在200 ～ 250°C和500～530°C范围内有两个吸收峰,分别归属于弱酸中心和强酸中心,总酸量为1.658 2 mmol/g.以SO42-/ SnO2 -SiO2固体酸作为催化剂合成月桂酸甲酯,正交实验结果表明:月桂...
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| 关 键 词： | SO4 -/SnO2 - SiO2 固体酸 催化 月桂酸甲酯 |
Synthesis of Methyllaurate over SO_4~(2-)/SnO_2-SiO_2 as Catalyst |
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| Meng Lina,Tian Zhiming.Synthesis of Methyllaurate over SO_4~(2-)/SnO_2-SiO_2 as Catalyst[J].Chemical Industry Times,2011,25(8):17-19. |
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| Authors: | Meng Lina Tian Zhiming |
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| Affiliation: | Meng Lina Tian Zhiming(College of Chemistry and Chemical Engineering,Qiqihar University,Heilongjiang Qiqihar 161006) |
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| Abstract: | SO42-/SnO2-SiO2 as a solid catalyst had been prepared by sol-gel method.The NH3-TPD profiles show that desorption peaks with maximum in the range 200-250°C and 500-530°C are attributed to NH3 chemisorbed on weak and strong acid sites on the surface of the solid catalyst,respectively.The total amount of acid was 1.6582 mmol·g-1.The catalysts show best catalytic activity in synthesis of methyl laurate.The optimum conditions of the esterification by orthogonal experiments were studied: the molar of methanol to laurate 1:10,mass fraction of the catalyst in Lauric acid 5%,reaction time 4h.The yield of methyllaurate can reach 80.54 %.The catalyst could be reused for many times. |
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| Keywords: | SO42-/ SnO2-SiO2 solid acid esterification lauryl methyl ester |
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