| TiSiW_(12)O_(40)/TiO_2催化合成抗氧化剂没食子酸丙酯的研究 |
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| 引用本文： | 刘长春,范承恒.TiSiW_(12)O_(40)/TiO_2催化合成抗氧化剂没食子酸丙酯的研究[J].北京工商大学学报(自然科学版),2005(5). |
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| 作者姓名： | 刘长春 范承恒 |
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| 作者单位： | 江苏食品职业技术学院生物化工系 江苏淮安223001
(刘长春)，江苏食品职业技术学院生物化工系 江苏淮安223001(范承恒) |
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| 摘 要： | 以TiSiW12O40/TiO2为催化剂,用没食子酸与正丙醇直接酯化合成了抗氧化剂没食子酸丙酯(PG),通过正交试验确定了醇酸物质的量比、催化剂用量、反应时间对PG收率的影响.得到的最佳工艺条件为:醇酸物质的量比为8∶1,催化剂用量为没食子酸质量的2%,反应时间为3 h,PG的收率可达95.1%.实验表明,该催化剂用于合成PG具有极好的催化活性和重复使用性.
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| 关 键 词： | 没食子酸丙酯 TiSiW12O40/TiO2 抗氧化剂 直接酯化 合成 |
SYNTHESIS OF ANTIOXIDANT PROPYL GALLATE USING TiSiW_(12)O_(40)/TiO_2 AS CATALYST |
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| LIU Chang-Chun,FAN Cheng-heng.SYNTHESIS OF ANTIOXIDANT PROPYL GALLATE USING TiSiW_(12)O_(40)/TiO_2 AS CATALYST[J].Journal of Beijing Technology and Business University:Natural Science Edition,2005(5). |
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| Authors: | LIU Chang-Chun FAN Cheng-heng |
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| Abstract: | Antioxidant propyl gallate was synthesized by esterification of gallic acid and n-propylalcohol by TiSiW12O40/TiO2.The effect of the ratio of alcohol to gallic acid,the quantity ofcatalyst,and the reaction time were tested through orthogonal experiment.The optimal reactionconditions were obtained as follows: the ratio of alcohol to gallic acid was 8∶1,the quantity ofcatalyst was 2% of gallic acid,reaction time was 3 h,the yield of PG was 95.1%.Theexperiment indicated that TiSiW12O40/TiO2had good life and repetitive use. |
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| Keywords: | propyl gallate TiSiW12O40/TiO2 antioxidant direct esterification synthesis |
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