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| SiO_2负载全氟磺酸树脂催化合成苯甲醛缩1,2-丙二醇 | |
| 引用本文： | 罗士平,周国平,陈勇,裘兆蓉,杨绪杰,陆路德.SiO_2负载全氟磺酸树脂催化合成苯甲醛缩1,2-丙二醇[J].精细石油化工,2006,23(4):29-32. |
| 作者姓名： | 罗士平 周国平 陈勇 裘兆蓉 杨绪杰 陆路德 |
| 作者单位： | 1. 南京理工大学化工学院,江苏,南京,210094;江苏工业学院精细石油化工省重点实验室,江苏,常州,213016 2. 江苏工业学院精细石油化工省重点实验室,江苏,常州,213016 3. 南京理工大学化工学院,江苏,南京,210094 |
| 摘 要： | 将回收的全氟磺酸离子交换膜制成全氟磺酸树脂溶液,利用溶胶-凝胶法得到全氟磺酸树脂／二氧化硅复合催化剂,并用FT-IR、DSC-TGA、BET等对其进行表征。将该催化剂用于合成苯甲醛缩1,2-丙二醇,考察了物料比、反应时间、催化剂用量对苯甲醛与1,2-丙二醇反应的影响规律,最佳反应条件为n(苯甲醛):n (1,2-丙二醇)=1:1．5,催化剂用量为反应物料的2％(质量分数),环己烷为带水剂,反应时间0．5 h时,苯甲醛缩1,2-丙二醇收率可达91．8％。 |
| 关 键 词： | 全氟磺酸离子交换膜 全氟磺酸树脂／二氧化硅复合催化剂 苯甲醛缩1 2-丙二醇 |
| 收稿时间： | 2005-11-11 |
| 修稿时间： | 2006-06-19 |
SYNTHESIS OF BENZALDEHYDE 1,2-PROPANEDIOL ACETAL CATALYZED BY PERFLUOROSULFONIC ACID RESIN/SILICA COMPOSITE |
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| Luo Shiping,Zhou Guoping,Chen Yong,Qiu Zhaorong,Yang Xujie,Lu Lude.SYNTHESIS OF BENZALDEHYDE 1,2-PROPANEDIOL ACETAL CATALYZED BY PERFLUOROSULFONIC ACID RESIN/SILICA COMPOSITE[J].Speciality Petrochemicals,2006,23(4):29-32. | |
| Authors: | Luo Shiping Zhou Guoping Chen Yong Qiu Zhaorong Yang Xujie Lu Lude |
| Affiliation: | 1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China; 2. Jiangsu Provincial Key Laboratory of Fine Chemical Engineering, Jiangsu Polytechnic University, Changzhou 213016, Jiangsu,China |
| Abstract: | The used perfluorosulfonic acid ion-exchange membrane was treated and solved. The perflu-orosulfonic acid resin/silica composite catalyst was prepared using the above solution through a sol-gel method. The catalysts were characterized by FTIR, DSC-TGA and BET measurements and used in acetalation of benzaldehyde with 1, 2-propanediol. The effects of material ratios, reaction time and catalyst amount on the acetalation reaction were studied. The results showed that at n(benzaldehyde) : n(1,2-propanediol) =1 : 1. 5, w(catalyst) = 2% of feed stock and reaction time 0. 5 h, benzaldehyde 1,2-propanediol acetal could be obtained with the yield of 91. 8%. |
| Keywords: | perfluorosulfonic acid ion-exchange membrane perfluorosulfonic acid resin/silica composite catalyst benzaldehyde 1 2-propanediol acetal |
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