Effect of pressure on the selectivity for the esterification of ethylene glycol with propionic acid in supercritical CO2
文献类型：期刊论文
| 作者 | Zhang, Jicheng; Jiang, Tao; Han, Buxing; Zhu, Anlian; Ma, Xiumin; Zhou, Yinxi; Bai, Liang; Xiang, Hongwei; Li, Yongwang |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2007-05-17 |
| 卷号 | 111期号:19页码:5322-5325 |
| ISSN号 | 1520-6106 |
| DOI | 10.1021/jp070610m |
| 英文摘要 | The esterification of ethylene glycol with propionic acid was investigated in supercritical CO2 at 50.0 degrees C. The effect of pressure on equilibrium conversion and selectivity of ethylene glycol monopropionate (monoester) and ethylene glycol dipropinonate (diester) was studied systematically. It was shown that the equilibrium conversion and selectivity was nearly independent of pressure as pressure was lower than 9 MPa. At higher pressure, however, the yield and selectivity of the diester increased considerably, while those of the monoester decreased with increasing pressure. The main reason was that reactants and products distributed between the vapor phase and liquid phase at higher pressures. The solvent power of CO2 for the diester is stronger than that for the monoester. More diester molecules in the liquid phase were extracted into the vapor at higher pressures, which shifted equilibrium of the consecutive reversible reactions. |
| 语种 | 英语 |
| WOS记录号 | WOS:000246341300041 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/60665]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jiang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Shanxi Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jicheng,Jiang, Tao,Han, Buxing,et al. Effect of pressure on the selectivity for the esterification of ethylene glycol with propionic acid in supercritical CO2[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2007,111(19):5322-5325. |
| APA | Zhang, Jicheng.,Jiang, Tao.,Han, Buxing.,Zhu, Anlian.,Ma, Xiumin.,...&Li, Yongwang.(2007).Effect of pressure on the selectivity for the esterification of ethylene glycol with propionic acid in supercritical CO2.JOURNAL OF PHYSICAL CHEMISTRY B,111(19),5322-5325. |
| MLA | Zhang, Jicheng,et al."Effect of pressure on the selectivity for the esterification of ethylene glycol with propionic acid in supercritical CO2".JOURNAL OF PHYSICAL CHEMISTRY B 111.19(2007):5322-5325. |
入库方式： OAI收割
来源：化学研究所
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