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题名: Synergy of ruthenium and cobalt in SiO2-supported catalysts on ethylene hydroformylation
作者: Huang, L;  Xu, YD
关键词: silica ;  ruthenium ;  cobalt ;  synergy ;  hydroformylation
刊名: APPLIED CATALYSIS A-GENERAL
发表日期: 2001-01-08
卷: 205, 期:1-2, 页:183-193
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
英文摘要: Dynamic hydroformylation of ethylene at atmospheric pressure and 150 degreesC has been studied in a fixed bed reactor over ruthenium- and cobalt-containing SiO2-supported catalysts (1% Ru loading). Any combination of ruthenium and cobalt precursors leads to significant improvement of hydroformylation activity with respect to those of monometallic catalysts. The optimal atomic ratio of Co:Ru is estimated to be 3:1 for ideal catalytic activity. A catalyst derived from Ru-3(CO)(12) and Co-2(CO)(8) is most active. A catalyst derived from metal carbonyls is generally more active than a catalyst prepared from metal salts. Metal chlorides retard the preparation of active catalysts in most cases, The catalysts studied exhibit fairly good catalytic stability. The determined rate enhancement of ethylene hydroformylation suggests a synergy of ruthenium and cobalt, which is understood as catalysis by bimetallic particles or ruthenium and cobalt monometallic particles in intimate contact, The synergy causes high ethylene hydrogenation activity while giving enhanced ethylene hydroformylation activity. Meanwhile, the potential of the ruthenium-based catalysts is evaluated from both catalytic performances and cost by comparison with the corresponding rhodium-based ones, (C) 2001 Elsevier Science B.V. All rights reserved.
关键词[WOS]: CLUSTER-DERIVED CATALYSTS ;  BIMETALLIC RH-CO ;  HOMOGENEOUS MULTIMETALLIC CATALYSTS ;  VAPOR-PHASE HYDROFORMYLATION ;  FISCHER-TROPSCH SYNTHESIS ;  OLEFIN HYDROFORMYLATION ;  DICOBALT OCTACARBONYL ;  INORGANIC CARRIERS ;  CO/SIO2 CATALYSTS ;  SUPPORTED RU
语种: 英语
WOS记录号: WOS:000166181600019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138919
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, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Huang, L,Xu, YD. Synergy of ruthenium and cobalt in SiO2-supported catalysts on ethylene hydroformylation[J]. APPLIED CATALYSIS A-GENERAL,2001,205(1-2):183-193.
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