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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
KeywordPropylene Epoxidation Silver Catalyst
Source PublicationAPPLIED CATALYSIS A-GENERAL
2002-11-01
Volume237Issue:1-2Pages:11-19
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
WOS SubjectChemistry, Physical ; Environmental Sciences
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS KeywordTITANIUM SILICALITE ; PHASE EPOXIDATION ; OXYGEN ; ADSORPTION ; HYDROGEN ; OXIDATION ; CHLORINE ; OLEFINS ; PROPENE
AbstractPropylene 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.
Language英语
URL查看原文
WOS IDWOS:000178631500002
Citation statistics
Cited Times:86[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/84945
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
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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