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题名: Influence of composition of heteropolyphosphatotungstate catalyst on epoxidation of propylene
作者: Li, H;  Gao, S;  Li, M;  Zhang, RH;  Xi, ZW
关键词: propylene ;  epoxidation ;  heteropolyphosphatotungstate
刊名: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
发表日期: 2004-08-24
DOI: 10.1016/j.molcata.2004.04.024
卷: 218, 期:2, 页:247-252
收录类别: SCI
文章类型: Article
项目归属: 208
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: A series of heteropolyphosphatotungstate catalysts with different W/P ratio were prepared by different means. P-31 MAS NMR spectra show every heteropolyphosphatotungstate contains several species with different W/P ratio. Combined with propylene epoxidation results, it is shown that the band at chemical shift ca. delta = 5 ppm maybe corresponds to a catalyst precursor which can be the most efficiently converted to the structure {PO4 [WO(O-2)(2)](4)}(3-). Characterization results of ICP show, the catalysts with low W/P ratio show a good reactivity for propylene epoxidation. (C) 2004 Elsevier B.V. All rights reserved.
关键词[WOS]: HYDROGEN-PEROXIDE ;  BIPHASE MEDIUM ;  OLEFINS ;  PRECURSORS ;  SYSTEM
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000222410300018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/82579
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Li, H,Gao, S,Li, M,et al. Influence of composition of heteropolyphosphatotungstate catalyst on epoxidation of propylene[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2004,218(2):247-252.
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