DICP OpenIR
Influence of preparation conditions on catalytic activity of heteropolyphosphatotungstate catalyst
Yang, XG; Zhang, SJ; Li, M; Xi, ZW; Gao, S
关键词Heteropolyphosphatotungstate Phase-transfer Catalyst P-31 Nmr 1-octene Epoxidation
刊名CHINESE JOURNAL OF CATALYSIS
2006
27期:1页:50-54
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]AQUEOUS HYDROGEN-PEROXIDE ; BIPHASE MEDIUM ; W-183 NMR ; EPOXIDATION ; OXIDATION ; OLEFINS ; SYSTEM
英文摘要Reaction-controlled phase-transfer catalysts have advantages of both homogeneous and heterogeneous catalysts. For decreasing the catalyst preparation cost and making the synthesis method practical, a new reaction-controlled phase-transfer catalyst was synthesized Under the improved preparation conditions using [C16H33 (CH3)(3) (70 %) + C18H37 (CH3)(3) (30 %)] N+ Cl- (labeled as Q(+)Cl(-)) instead of [C5H5NC16 H-33](+) Cl- as the phase-transfer agent. The influence of preparation conditions on the catalyst activity was investigated, and the catalyst was analyzed by P-31 NMR spectroscopy. Combining the P-31 NMR results with the catalyst activity for the I-octene epoxidation, it was found that the components of the catalyst can interconvert in the presence of hydrogen peroxide, which results in the formation of a complex catalyst with high activity for the 1-octene epoxidation. But the catalyst with one component shows poor catalytic activity in the I-octene epoxidation.
语种英语
WOS记录号WOS:000235437700012
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140098
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
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GB/T 7714
Yang, XG,Zhang, SJ,Li, M,et al. Influence of preparation conditions on catalytic activity of heteropolyphosphatotungstate catalyst[J]. CHINESE JOURNAL OF CATALYSIS,2006,27(1):50-54.
APA Yang, XG,Zhang, SJ,Li, M,Xi, ZW,&Gao, S.(2006).Influence of preparation conditions on catalytic activity of heteropolyphosphatotungstate catalyst.CHINESE JOURNAL OF CATALYSIS,27(1),50-54.
MLA Yang, XG,et al."Influence of preparation conditions on catalytic activity of heteropolyphosphatotungstate catalyst".CHINESE JOURNAL OF CATALYSIS 27.1(2006):50-54.
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