Transesterification of dimethyl carbonate with phenol to diphenyl carbonate over v2o5 catalyst
文献类型：期刊论文
| 作者 | Tong, Dong-Shen; Yao, Jie; Wang, Yue; Niu, Hong-Ying; Wang, Gong-Ying |
| 刊名 | Journal of molecular catalysis a-chemical
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 268期号:1-2页码:120-126 |
| 关键词 | Phenol Dimethyl carbonate Transesterification Diphenyl carbonate Pure v2o5 |
| ISSN号 | 1381-1169 |
| DOI | 10.1016/j.molcata.2006.12.013 |
| 通讯作者 | Wang, gong-ying(gywang@cioc.ac.cn) |
| 英文摘要 | A novel heterogeneous catalyst, pure v2o5 catalyst prepared by calcination of nh4 vo3 at 550 degrees c in air, was used for the synthesis of diphenyl carbonate (dpc) by the transesterification of dimethyl carbonate (dmc) with phenol. the effects of v2o5 amount, reaction time and molar ratio of dimethyl carbonate to phenol were investigated. under the conditions of mass fraction of catalyst 1.6%, molar ratio of dmc/phenol of 1.5:1 and a reaction time 9 h, the maximum conversion of phenol and total yields of methyl phenyl carbonate (mpc) and dpc were 42.0 and 40.1%, respectively. reuse of the catalysts revealed an appreciable deactivation. x-ray diffraction (xrd), x-ray photoelectron spectroscopy (xps), fourier transform-infrared spectroscopy (ft-ir) and transmission electron microscopy (tem) characteristics of the fresh and used catalyst samples had been recorded. the results showed that the deactivation of the catalyst was mainly ascribed to the conversion of crystal structure. moreover, the deactivated catalyst could be easily reactivated by calcination in air, and the regenerated catalyst showed the catalytic activity almost as high as that of the fresh sample. however, a small difference in catalytic activities between regenerated and fresh catalysts was possibly owing to the sintering of the regenerated catalyst. (c) 2006 elsevier b.v. all rights reserved. |
| WOS关键词 | ENVIRONMENTALLY BENIGN REACTIONS ; OXIDATIVE DEHYDROGENATION ; OXALATE ; DEACTIVATION ; REACTIVITY ; PROPANE |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000245897100019 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2383149 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, Gong-Ying |
| 作者单位 | 1.Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tong, Dong-Shen,Yao, Jie,Wang, Yue,et al. Transesterification of dimethyl carbonate with phenol to diphenyl carbonate over v2o5 catalyst[J]. Journal of molecular catalysis a-chemical,2007,268(1-2):120-126. |
| APA | Tong, Dong-Shen,Yao, Jie,Wang, Yue,Niu, Hong-Ying,&Wang, Gong-Ying.(2007).Transesterification of dimethyl carbonate with phenol to diphenyl carbonate over v2o5 catalyst.Journal of molecular catalysis a-chemical,268(1-2),120-126. |
| MLA | Tong, Dong-Shen,et al."Transesterification of dimethyl carbonate with phenol to diphenyl carbonate over v2o5 catalyst".Journal of molecular catalysis a-chemical 268.1-2(2007):120-126. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。