| 生物柴油生产废液中甘油的提取及三醋酸甘油酯的合成 |
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| 引用本文： | 郭晓亚,慈冰冰,于晶露,李守光,胡薇,汤祥惠.生物柴油生产废液中甘油的提取及三醋酸甘油酯的合成[J].上海大学学报(自然科学版),2010,16(5):522-525. |
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| 作者姓名： | 郭晓亚 慈冰冰 于晶露 李守光 胡薇 汤祥惠 |
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| 作者单位： | 1.上海大学 环境与化学工程学院，上海 200444; 2.上海绿铭环保科技有限公司，上海 201107 |
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| 基金项目： | 上海市联盟计划资助项目（094250）；上海市重点学科建设资助项目（S30109） |
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| 摘 要： | 将生物柴油酶法生产工艺的废液（含甘油5%），经过碱处理-减压蒸馏法除溶剂-除胶-真空蒸馏处理后，获得纯度为90.43％的甘油.提取的甘油和冰醋酸反应，反应条件如下：磷钨酸为催化剂，甲苯为带水剂，温度110 ℃，甘油与冰醋酸的物料比为1∶5，催化剂使用量为原料甘油的1.6%，反应时间6 h.三醋酸甘油酯的收率可以达到90％以上.
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| 关 键 词： | 生物柴油 甘油 三醋酸甘油酯 磷钨酸 |
| 收稿时间： | 2010-07-02 |
Synthesis of Glyceryol Triacetate by Glycerol Extracted from Waste Water |
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| GUO Xiao-ya,CI Bing-bing,YU Jing-lu,LI Shou-guang,HU Wei,TANG Xiang-hui.Synthesis of Glyceryol Triacetate by Glycerol Extracted from Waste Water[J].Journal of Shanghai University(Natural Science),2010,16(5):522-525. |
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| Authors: | GUO Xiao-ya CI Bing-bing YU Jing-lu LI Shou-guang HU Wei TANG Xiang-hui |
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| Institution: | 1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China; 2. Shanghai Lüming Environmental Protection Technology Co., Ltd., Shanghai 201107, China |
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| Abstract: | Waste water from enzymatic biodiesel technology containing 5% glycerol was treated by alkali treatment, vacuum distillation, removing colloidal, and vacuum distillation to collect glycerol of purity up to 90.43%. The glycerol reacted with acetic acid (material ratio 1∶5) to get glyceryol triacetate with phosphotungstic acid catalyst (accouting for 1.6% of glycerol), toluene as water-carrying agent, at 110 ℃. Thus more than 90% glyceryol triacetate were produced in 6 hours. |
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| Keywords: | biodiesel glycerin glyceryl triacetate phosphotungstic acid |
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