Selectivity enhancement in the catalytic hydrogenation of propionitrile using ionic liquid multiphase reaction systems

Obert K, Roth D, Ehrig M, Schönweiz A, Assenbaum D, Lange H, Wasserscheid P (2009)


Publication Type: Journal article

Publication year: 2009

Journal

Publisher: Elsevier

Book Volume: 356

Pages Range: 43--51

Volume: 356

Issue: 1

Journal Issue: 1

DOI: 10.1016/j.apcata.2008.12.016

Abstract

A new ionic liquid based, multiphase reaction system was investigated for the catalytic hydrogenation of propionitrile. The reaction system under investigation consisted of a solid heterogeneous Ru-catalyst (Ru on carbon), two liquid phases and the hydrogen gas-phase. By using two liquid phases in the reactor -- of which one was an ionic liquid -- it was possible to improve significantly the selectivity for the formation of propylamine by suppressing consecutive reactions to dipropylamine and tripropylamine. This enhanced selectivity resulted either from the protonation of the primary formed amine (in case of the Br{ø}nsted acidic ionic liquids dimethylcyclohexylammonium hydrogensulfate and 1-butylimidazolium hydrogensulfate) or from the extraction of the primary amine into the organic phase (in case of a 1-ethyl-3-methylimidazolium ethylsulfate/1,2,4-trichlorobenzene biphasic system).

Authors with CRIS profile

Additional Organisation(s)

How to cite

APA:

Obert, K., Roth, D., Ehrig, M., Schönweiz, A., Assenbaum, D., Lange, H., & Wasserscheid, P. (2009). Selectivity enhancement in the catalytic hydrogenation of propionitrile using ionic liquid multiphase reaction systems. Applied Catalysis A-General, 356(1), 43--51. https://dx.doi.org/10.1016/j.apcata.2008.12.016

MLA:

Obert, Katharina, et al. "Selectivity enhancement in the catalytic hydrogenation of propionitrile using ionic liquid multiphase reaction systems." Applied Catalysis A-General 356.1 (2009): 43--51.

BibTeX: Download