Hydroformylation of 1-heptene catalyzed by ruthenium cluster

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:43270

Li, Z; Zhang, J; Wang, C ^[1]

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1. Taiyuan Univ. of Technology (China). Inst. of Coal Chemical Engineering

Hydroformylation of 1-heptane catalyzed by homogeneous and heterogeneous Ru{sub 3}(CO){sub 12} catalyst has been investigated. Ru{sub 3}(CO){sub 12} has almost no activity when reaction temperature is below 60 C, and nearly stable activity when over 100 C. The maximum selectivity to aldehyde is obtained at 120 C and N/I values of aldehyde and alcohol decrease rapidly with temperature increase. Supported Ru{sub 3}(CO){sub 12} catalyst modified with NaBH{sub 4} or KOH has higher catalytic activity and selectivity to aldehyde in heterogeneous catalysis. Compared with supported Ru{sub 3}(CO){sub 12} catalyst modified with NaBH{sub 4} or KOH has higher catalytic activity and selectivity to aldehyde in heterogeneous catalysis. Compared with supported Ru{sub 3}(CO){sub 12} catalysts, Ru{sub 3}(CO){sub 12}/Co{sub 2}(CO){sub 8}/{gamma}-Al{sub 2}O{sub 3} has high activity and selectivity. When PPh{sub 3} or (NEt{sub 4}) Cl is added to the reaction system, the selectivity to aldehyde and N/I increase. The FTIR spectra of catalysts after reaction show that Ru{sub 3}(CO){sub 12} and Co{sub 2}(CO){sub 8} are changed to new carbonyl complexes which may have catalytic activity.

• OSTI ID: 43270
• Report Number(s): CONF-940930--
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
ALCOHOLS
ALDEHYDES
ALUMINIUM OXIDES
CARBONYLATION
CARBONYLS
CATALYST SUPPORTS
CATALYTIC EFFECTS
COBALT COMPOUNDS
EXPERIMENTAL DATA
HEPTENES
HETEROGENEOUS CATALYSIS
HOMOGENEOUS CATALYSIS
RUTHENIUM COMPOUNDS
SYNTHESIS
TEMPERATURE DEPENDENCE