| SO42-/Si-Zr-RCL固体超强酸催化合成二甘醇二苯甲酸酯 |
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| 引用本文： | 行春丽,成战胜,刘咏.SO42-/Si-Zr-RCL固体超强酸催化合成二甘醇二苯甲酸酯[J].精细石油化工,2005(3):4-7. |
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| 作者姓名： | 行春丽 成战胜 刘咏 |
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| 作者单位： | 焦作大学生化与环境工程系,河南,焦作,454003;合肥工业大学生物与食品工程学院,安徽,合肥,230009 |
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| 基金项目： | 政府基金项目(9924260031). |
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| 摘 要： | 开发了用硅锆交联粘土固体超强酸(SO_4~(2-)/Si-Zr-RCL)催化合成二甘醇二苯甲酸酯(DEDB)的新工艺。最佳反应条件为:以正丁醇作挟水剂,主反应温度165℃,正丁醇/二甘醇/苯甲酸(摩尔比)=0.4:0.5:1,反应时间3.5 h,w(催化剂)=1.2%(对总反应物),苯甲酸转化率达98.8%(质量分数)。该催化剂易于和产物分离,并能重复使用。
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| 关 键 词： | 二甘醇二苯甲酸酯 固体超强酸催化剂 苯甲酸 正丁醇 |
| 修稿时间： | 2004年10月27 |
STUDY OF SYNTHESIS OF DIETHYLENE GLYCOL DIBENZOATE CATALYZED BY SOLID SUPERACID SO42-/Si-Zr-RCL |
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| Xing Chunli,Cheng Zhansheng,Liu Yong.STUDY OF SYNTHESIS OF DIETHYLENE GLYCOL DIBENZOATE CATALYZED BY SOLID SUPERACID SO42-/Si-Zr-RCL[J].Speciality Petrochemicals,2005(3):4-7. |
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| Authors: | Xing Chunli Cheng Zhansheng Liu Yong |
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| Affiliation: | Xing Chunli Cheng Zhansheng Department of Biochemical and Environmental Engineering,Jiaozuo University,Jiaozuo 454003,Henan,ChinaLiu Yong School of Biologic and Food Engineering,Hefei University of Technology,Hefei 230009,Anhui,China |
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| Abstract: | A new technique for synthesizing diethylene glycol dibenzoate(DEDB)catalyzed by solid superacid SO_4~(2-)/Si-Zr-RCL was developed.The experimental results showed that the optimal synthet- ic conditions were as follows:with n-butanol as water carrying agent,main reaction temperature 165 ℃,reaction time 3.5 h,n-butanol/diethylene glycol/benzoic acid(molar ratio)=0.4:0.5:1,and w(catalyst)=1.2% of total initial materials.The conversion of benzoic acid amounts to 98.8%.The catalyst could be separated from reaction materials easily,and could be reused. |
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| Keywords: | diethylene glycol dibenzoate solid superacid catalyst benzoic acid n-butanol |
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