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RESEARCH PRODUCT
Gas-phase hydrogenation of propionitrile on copper-lanthanide oxides
Joaquim B. BrancoDanielle Ballivet-tkatchenkoAntónio Pires De Matossubject
LanthanideCopper oxideInorganic chemistryImineprimary aminechemistry.chemical_element010402 general chemistryHeterogeneous catalysis01 natural sciencesCatalysisCatalysischemistry.chemical_compound[ CHIM.CATA ] Chemical Sciences/Catalysisgas-phase hydrogenationPhysical and Theoretical Chemistrysupported catalystsComputingMilieux_MISCELLANEOUS010405 organic chemistryProcess Chemistry and Technologypropionitrile[CHIM.CATA]Chemical Sciences/CatalysisCopper0104 chemical scienceschemistrycopperAmine gas treatingPropionitriledescription
Abstract The hydrogenation of propionitrile on copper-lanthanide oxide catalysts (2Cu·CeO 2 and 4Cu·Ln 2 O 3 (Ln = La, Pr, Nd)) was studied in the gas phase. The activity of the catalysts varies with the lanthanide in the order 2Cu·CeO 2 > 4Cu·Pr 2 O 3 > 4Cu·La 2 O 3 ≥ 4Cu·Nd 2 O 3 , while the activation energies varies in the opposite order, except for 2Cu·CeO 2 . The main product was the primary amine, n -propylamine. The formation of the unstable imine CH 3 CH 2 N CHCH 3 as a major product over 2Cu·CeO 2 seems to be consistent with the acidity of the catalyst. The catalysts were more selective than conventional copper impregnation catalysts, Cu (10 wt.%) on SiO 2 , La 2 O 3 or CeO 2 , that produce significant quantities of the secondary amine.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-07-01 |