ICCAS OpenIR
A new chromium-based catalyst coated with paraffin for ethylene oligomerization and the effect of chromium state on oligomerization selectivity
Fang, YQ; Liu, YX; Ke, YC; Guo, CY; Zhu, N; Mi, X; Ma, Z; Hu, YL
2002-08-30
Source PublicationAPPLIED CATALYSIS A-GENERAL
ISSN0926-860X
Volume235Issue:1-2Pages:33-38
AbstractA new method is proposed in which a chromium-based catalyst system containing chromium(III) tris (2-ethylhexanoate) (Cr(EH)(3)),2,5-dimethylpyrrole(2,5-DMP), GeCl4 and triethylaluminum (TEA) coated with solid paraffin is used for oligomerization of ethylene. GC-MS and H-1-NMR analyses show that the coated catalyst system prepared via this approach is air-insensitive so it can be stored under ambient conditions. The selectivity for 1-hexene is up to 97.91 wt.%, and only slightly decreases when the catalyst system is exposed in air for 24h; in contrast, the selectivity is only 35.6% for its non-coated counterpart. XPS reveals that an attachment of atmospheric oxygen to catalyst makes the chemical state of chromium change from Cr3+ to Cr6+. Such a change, in turn, reduces remarkably its selectivity for 1-hexene. (C) 2002 Elsevier Science B.V. All rights reserved.
KeywordChromium-based Catalysts Paraffin (Alkanes) Ethylene Oligomerization Trimerization Hexene
Indexed BySCI
Language英语
WOS IDWOS:000178021100004
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78812
Collection中国科学院化学研究所
Corresponding AuthorHu, YL
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China
2.CNPC Key Lab Catalysts, Beijing Lab Catalysts, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Fang, YQ,Liu, YX,Ke, YC,et al. A new chromium-based catalyst coated with paraffin for ethylene oligomerization and the effect of chromium state on oligomerization selectivity[J]. APPLIED CATALYSIS A-GENERAL,2002,235(1-2):33-38.
APA Fang, YQ.,Liu, YX.,Ke, YC.,Guo, CY.,Zhu, N.,...&Hu, YL.(2002).A new chromium-based catalyst coated with paraffin for ethylene oligomerization and the effect of chromium state on oligomerization selectivity.APPLIED CATALYSIS A-GENERAL,235(1-2),33-38.
MLA Fang, YQ,et al."A new chromium-based catalyst coated with paraffin for ethylene oligomerization and the effect of chromium state on oligomerization selectivity".APPLIED CATALYSIS A-GENERAL 235.1-2(2002):33-38.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Fang, YQ]'s Articles
[Liu, YX]'s Articles
[Ke, YC]'s Articles
Baidu academic
Similar articles in Baidu academic
[Fang, YQ]'s Articles
[Liu, YX]'s Articles
[Ke, YC]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Fang, YQ]'s Articles
[Liu, YX]'s Articles
[Ke, YC]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.