| SO_4~(2-)/TiO_2-凹凸棒土催化合成尼泊金丁酯 |
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| 引用本文： | 钱运华,金叶玲,陈静,胡涛,谭立强,王洁.SO_4~(2-)/TiO_2-凹凸棒土催化合成尼泊金丁酯[J].精细石油化工,2008,25(1):6-9. |
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| 作者姓名： | 钱运华 金叶玲 陈静 胡涛 谭立强 王洁 |
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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
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江苏省科技攻关计划 |
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| 摘 要： | 制备了固体超强酸催化剂SO_4~2/TiO_2-凹凸棒土催化剂,用于催化合成尼泊金丁酯。较佳的催化剂制备条件为:硫酸浓度1.0 mol/L、焙烧温度500℃、焙烧时间为3 h。合成尼泊金丁酯的最佳反应条件是:n(对羟基苯甲酸):n(丁醇)=1:4,催化剂用量3%,反应时间4 h,收率4.5%。该催化剂酸强度小于-14.52,可以重复使用多次。
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| 关 键 词： | 纳米 固体超强酸 催化剂 尼泊金丁酯 酯化 丁醇 对羟基苯甲酸 |
SYNTHESIS OF BUTYLPARABEN WITH SOLID SUPERACID SO24-/TiO2 ATTAPULGITE AS CATALYST |
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| Qian Yunhua,Jin Yeling,Chen Jing,Hu Tao,Tan Liqiang,Wang Jie.SYNTHESIS OF BUTYLPARABEN WITH SOLID SUPERACID SO24-/TiO2 ATTAPULGITE AS CATALYST[J].Speciality Petrochemicals,2008,25(1):6-9. |
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| Authors: | Qian Yunhua Jin Yeling Chen Jing Hu Tao Tan Liqiang Wang Jie |
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| Abstract: | The solid superacid SO_4~(2-)/TiO_2 attapulgite was prepared and used as catalyst for the synthe- sis of butylparaben.The optimum conditions for the preparation of the catalyst were found as follows: 1.0 mol/L H_2SO_4,calcination temperature 500℃and the calcination time 3 h.The yield of bu- tylparaben reached up to 94.5% with this catalyst and the catalyst could be used repeatedly. |
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| Keywords: | nanometer solid superacid catalyst butylparaben esterification butanol p-hydroxybenzoic acid |
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