| H_3PW_(12)O_(40)/TiO_2催化合成对羟基苯甲酸丁酯的研究 |
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| 引用本文： | 胡石金,许招会,陈德锴.H_3PW_(12)O_(40)/TiO_2催化合成对羟基苯甲酸丁酯的研究[J].应用化工,2006,35(10):739-741. |
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| 作者姓名： | 胡石金 许招会 陈德锴 |
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| 作者单位： | 1. 江西师范大学,化工研究中心,江西,南昌,330027
2. 江西师范大学,化学化工学院,江西,南昌,330027 |
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| 基金项目： | 江西省重点实验室基金;湖北省教育厅开放基金 |
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| 摘 要： | 采用溶胶-液相法制备了H3PW12O40/TiO2复合催化剂,用FT-IR分析方法对催化剂进行了结构表征。以对羟基苯甲酸和正丁醇为原料合成了对羟基苯甲酸丁酯,考察了反应物配比、催化剂用量、反应时间及催化剂的重复使用性能对产品收率的影响。实验结果表明,合成对羟基苯甲酸丁酯的较优反应条件为:对羟基苯甲酸0.1 mol,n(对羟基苯甲酸)∶n(正丁醇)=1.0∶5.0(摩尔比),催化剂的用量为1.2 g,反应时间4.0 h。上述条件下,对羟基苯甲酸丁酯的收率可达85.0%以上。
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| 关 键 词： | 磷钨酸 钛酸四丁酯 对羟基苯甲酸丁酯 催化合成 |
| 文章编号： | 1671-3206(2006)10-0739-03 |
| 收稿时间： | 2006-07-31 |
| 修稿时间： | 2006年7月31日 |
Synthesis of butyl-p-hydroxybenzoate catalyzed by H3PW12O40/TiO2 |
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| HU Shi-jin,XU Zhao-hui,CHEN De-kai.Synthesis of butyl-p-hydroxybenzoate catalyzed by H3PW12O40/TiO2[J].Applied chemical industry,2006,35(10):739-741. |
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| Authors: | HU Shi-jin XU Zhao-hui CHEN De-kai |
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| Affiliation: | 1. Chemical Research Center of Jiangxi Normal University, Nanchang 330027, China; 2. Chemistry and Chemical Engineering of Jiangxi Normal University, Nanchang 330027, China |
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| Abstract: | A complex catalyst,H_3PW_(12)O_(40)/TiO_2 w as prepared by sol-gol method and identified by FT-IR.Butyl-p-hydroxybenzo ate was synthesized from p-hydroxybenzoic acid and n-butyl alcohol usi ng it as a catalyst.The factors influencing the synthesis were discussed and the better conditions as follows:p-hydroxy benzoic acid 0.1mol,n(p-hy droxybenzoic acid)∶n(n-butyl alcohol)=1.0∶5.0(mole ratio),the amount of catalyst is 1.2 g,the reaction time is 4.0 h.Experimental r esults showed that under the above reaction conditions,the yield of butyl-p-hydroxybenzoate can reach over 85.0%. |
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| Keywords: | H_3PW_(12)O_(40) Ti(OC_4H_9)_4 butyl-p-hydroxybenzoate catalytic synthesis |
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