| 固体超强酸SO42-/TiO2-凹凸棒土催化合成尼泊金十二酯的研究 |
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| 引用本文： | 钱运华,金叶玲,陈静,胡涛,谭立强. 固体超强酸SO42-/TiO2-凹凸棒土催化合成尼泊金十二酯的研究[J]. 中国调味品, 2007, 0(12): 41-43 |
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| 作者姓名： | 钱运华 金叶玲 陈静 胡涛 谭立强 |
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| 作者单位： | 淮阴工学院,化工系,江苏,淮安,223003 |
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| 基金项目： | 淮安市工业项目;江苏省科技攻关项目 |
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| 摘 要： | 对羟基苯甲酸和正十二醇在固体超强酸SO42-/TiO2-凹凸棒土催化下,以苯为溶剂,直接酯化合成尼泊金十二酯,其最佳的反应条件为:对羟基苯甲酸与正十二醇摩尔比为1∶4,催化剂用量为4%,反应时间4h,产品收率达91.2%。该催化剂与单组分固体超强酸SO42-/TiO2相比,具有成本较低,与产物易分离,可重复使用,不污染环境等优点,是对环境友好并具有应用前景的绿色催化剂。
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| 关 键 词： | 固体超强酸 催化剂 尼泊金十二酯 酯化反应 |
| 文章编号： | 1000-9973（2007）12-0041-03 |
| 收稿时间： | 2007-07-03 |
| 修稿时间： | 2007-07-03 |
Study on the synthesis of dodecyl nipogin ester with solid superacid SO42-/TiO2-attapulgite as catalyst |
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| QIAN Yun-hua,JIN Ye-ling,CHEN Jing,HU Tao,TAN Li-qiang. Study on the synthesis of dodecyl nipogin ester with solid superacid SO42-/TiO2-attapulgite as catalyst[J]. China Condiment, 2007, 0(12): 41-43 |
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| Authors: | QIAN Yun-hua JIN Ye-ling CHEN Jing HU Tao TAN Li-qiang |
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| Abstract: | The dodecyl ester of p-hydroxybenzoic acid was synthesized by a direct esterification from dodecyl alcohol and p-hydroxybenzoic acid with solid superacid SO42-/TiO2-attapulgite as catalyst in benzene with a yield of 91.2%.The optimum conditions for the reaction are as follow: p-hydroxybenzoic acid and dodecyl alcohol in the mole ratio of 1:4;the weight of catalyst 4%;the reaction time 4h.Comparied with unfixed solid superacid SO42-/TiO2,this complex catalyst is lower cost,easy to separate,and can be applied repeatedly.The catalyst is an environment-friendly green catalyst with great applied value in the future. |
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| Keywords: | solid superacid catalyst dodecyl nipogin ester esterification |
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