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Epoxidation of propylene on NaCl-modified silver catalysts with air as the oxidant
Lu, JQ; Luo, MF; Lei, H; Li, C
关键词Propylene Epoxidation Silver Catalyst
刊名APPLIED CATALYSIS A-GENERAL
2002-11-01
237期:1-2页:11-19
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
类目[WOS]Chemistry, Physical ; Environmental Sciences
研究领域[WOS]Chemistry ; Environmental Sciences & Ecology
关键词[WOS]TITANIUM SILICALITE ; PHASE EPOXIDATION ; OXYGEN ; ADSORPTION ; HYDROGEN ; OXIDATION ; CHLORINE ; OLEFINS ; PROPENE
英文摘要Propylene epoxidation by air was carried out on NaCl-modified silver (NaCl/Ag) catalysts, and the catalysts were characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The effects of NaCl loadings, propylene to oxygen ratio, and the reaction time on the catalytic performance were investigated. It was found that the addition of NaCl to silver significantly increases the propylene oxide (PO) selectivity. The PO yield has a maximum when the NaCl loading is about 10 wt.%. Also 12.4% conversion of propylene and 31.6% selectivity to PO are obtained on the NaCl/Ag (10 wt.%) catalyst at 350 degreesC, space velocity 1.8 x 10(4) h(-1) and C3H6:O-2 = 1:2. XPS and XRD characterizations show that AgCl formed on the silver catalyst was favorable to propylene epoxidation. A compound with highly oxidized Ag ion was also found, which may be effective for the reaction. (C) 2002 Elsevier Science B.V. All rights reserved.
语种英语
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WOS记录号WOS:000178631500002
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被引频次:82[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/321008/84945
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, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Lu, JQ,Luo, MF,Lei, H,et al. Epoxidation of propylene on NaCl-modified silver catalysts with air as the oxidant[J]. APPLIED CATALYSIS A-GENERAL,2002,237(1-2):11-19.
APA Lu, JQ,Luo, MF,Lei, H,&Li, C.(2002).Epoxidation of propylene on NaCl-modified silver catalysts with air as the oxidant.APPLIED CATALYSIS A-GENERAL,237(1-2),11-19.
MLA Lu, JQ,et al."Epoxidation of propylene on NaCl-modified silver catalysts with air as the oxidant".APPLIED CATALYSIS A-GENERAL 237.1-2(2002):11-19.
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