| 酯化催化剂Ga_2O_3/SiO_2的研制及其催化合成丁酸辛酯 |
| |
| 引用本文： | 杨更须,曹永军,史利勇,何建英,陈丹云.酯化催化剂Ga_2O_3/SiO_2的研制及其催化合成丁酸辛酯[J].石油化工,2011,40(7):717. |
| |
| 作者姓名： | 杨更须 曹永军 史利勇 何建英 陈丹云 |
| |
| 作者单位： | 1. 河南大学化学化工学院精细化学与工程研究所,河南开封,475004
2. 驻马店职业技术学院,河南驻马店,463000 |
| |
| 基金项目： | 河南省科技厅2009年科技发展计划项目(092102210171) |
| |
| 摘 要： | 制备了以Ga2O3为活性组分的硅胶负载氧化物型酯化催化剂Ga2O3/SiO2,采用FTIR技术对催化剂进行了表征;并将其用于催化正丁酸与正辛醇酯化反应合成丁酸辛酯,考察了催化剂制备条件(Ga2O3负载量和焙烧温度)、催化剂用量、n(正辛醇)∶n(正丁酸)、反应时间对酯化率的影响,还考察了催化剂的重复使用性能。实验结果表明,适宜的催化剂制备条件为:Ga2O3负载量(w)20%,500℃下焙烧2h。该催化剂催化合成丁酸辛酯的适宜反应条件为:正丁酸0.2mol,n(正辛醇)∶n(正丁酸)=1.8、催化剂用量(占总反应物的质量分数)1.03%、环己烷10mL、反应时间120min,在此条件下酯化率为96.5%。催化剂重复使用3次后,酯化率仍可达94.3%。Ga2O3/SiO2的热稳定性明显优于硫酸促进型酯化催化剂SO42-/SiO2和SO24-/SiO2-Ga2O3。
|
| 关 键 词： | 酯化催化剂 硅胶负载氧化物 正辛醇 正丁酸 丁酸辛酯 |
Preparation of Esterification Catalyst Ga2O3/SiO2 for Synthesis of Octyl Butyrate |
| |
| Yang Gengxu,Cao Yongjun,Shi Liyong,He Jianying,Chen Danyun.Preparation of Esterification Catalyst Ga2O3/SiO2 for Synthesis of Octyl Butyrate[J].Petrochemical Technology,2011,40(7):717. |
| |
| Authors: | Yang Gengxu Cao Yongjun Shi Liyong He Jianying Chen Danyun |
| |
| Affiliation: | Yang Gengxu1,Cao Yongjun2,Shi Liyong1,He Jianying1,Chen Danyun1(1.Chemistry and Chemical Engineering College,Institute of Fine Chemistry and Engineering,Henan University,Kaifeng Henan 475004,China,2.Zhumadian Vocational and Technical College,Zhumadian Henan 463000,China) |
| |
| Abstract: | A novel silica supported oxide catalyst Ga2O3/SiO2 for esterification was prepared and characterized by means of FTIR.The catalyst was used in esterification of n-octanol and n-butyric acid to octyl butyrate.The effects of the catalyst preparation conditions(Ga2O3 loading and the catalyst calcination temperature),catalyst dosage,mole ratio of n-octanol to n-butyric acid,reaction time and the catalyst reuse on the esterification rate were investigated.These results indicated that under the suitable condition... |
| |
| Keywords: | esterification catalyst silica supported oxide n-octanol n-butyric acid octyl butyrate |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《石油化工》浏览原始摘要信息 |
|
点击此处可从《石油化工》下载全文 |
|
