| 纳米固体酸催化合成无毒增塑剂柠檬酸三辛酯的研究 |
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| 引用本文： | 陈秀宇,詹赣水.纳米固体酸催化合成无毒增塑剂柠檬酸三辛酯的研究[J].广州化学,2009,34(2):16-22. |
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| 作者姓名： | 陈秀宇 詹赣水 |
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| 作者单位： | 福建师范大学福清分校,福建,福清,350300 |
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| 摘 要： | 以柠檬酸和正辛醇为原料，采用自制的纳米固体酸S04^2-／SnO2、SO4^2-／ZrO2、SO4^2-／TiO2及SO4^2-／Fe2O3催化剂合成无毒增塑剂柠檬酸三辛酯（trioctylcitrate，TOC）。分别考察了纳米催化剂种类、催化剂用量、醇／酸物质的量比、反应时间、反应温度等因素对合成TOC反应酯化率的影响，对合成的产品进行红外光谱分析。实验结果表明，自制的固体酸SO4^2-／SnO2催化合成无毒增塑剂柠檬酸三辛酯的最佳反应条件：催化剂用量为1．0g，酸醇比为1：6.3，反应时间1．0h，反应温度190℃。在最佳反应条件下，柠檬酸三辛酯的酯化率可达到98．5％。
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| 关 键 词： | 纳米固体酸 催化 合成 无毒增塑剂 柠檬酸三辛酯 |
Synthesis of Nontoxic Plasticizer Trioctyl Citrate Catalyzed by Nanosolid Acid |
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| CHEN Xiu-yu,ZHAN Gan-shui.Synthesis of Nontoxic Plasticizer Trioctyl Citrate Catalyzed by Nanosolid Acid[J].Guangzhou Chemistry,2009,34(2):16-22. |
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| Authors: | CHEN Xiu-yu ZHAN Gan-shui |
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| Institution: | Department of Biology and Chemistry Engineering;Fuqing Branch of Fujian Normal University;Fujian;Fuqing 350300 |
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| Abstract: | Nontoxic plasticizer trioctyl citrate was synthesized by using citric acid and octyl alcohol as a raw material and SO42-/SnO2、SO42-/ZrO2、SO42-/TiO2 and SO42-/Fe2O3 as catalysts. The effects of types and amounts of nanosolid acid catalysts,alcohol/acid molar ratio, reaction time and reaction temperature on the yield were investigated. The products were analyzed by means of IR spectroscopy. The results showed that the optimum conditions for the synthesis of trioctyl citrate over SO42-/SnO2 are catalyst content 1.0g, molar ratio of butanol to citric acid 1∶6.3, reaction time 1 h, and reaction temperature 190 ℃ . The yield can be 98.5% in the optimum reaction condition. |
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| Keywords: | nanosolid acid catalysis synthesis nontoxic plasticizer trioctylcitrate |
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