CATALYTIC ACTIVITIES OF NIOBIUM OXIDE FOR THE LIQUID-PHASE HYDROGENATION OF MALEIC-ANHYDRIDE AND HYDRATION OF SUCCINONITRILE

Authors
USHIKUBO T HARA Y WADA K
Citation
T. Ushikubo et al., CATALYTIC ACTIVITIES OF NIOBIUM OXIDE FOR THE LIQUID-PHASE HYDROGENATION OF MALEIC-ANHYDRIDE AND HYDRATION OF SUCCINONITRILE, Catalysis today, 16(3-4), 1993, pp. 525-535
Citations number
12
Categorie Soggetti
Engineering, Chemical","Chemistry Applied","Chemistry Physical
Journal title
Catalysis today → ACNP
ISSN journal
09205861
Volume
16
Issue
3-4
Year of publication
1993
Pages
525 - 535
Database
ISI
SICI code
0920-5861(1993)16:3-4<525:CAONOF>2.0.ZU;2-B
Abstract
Co and Pd supported on Nb2O5 catalyst was active for the hydrogenation of maleic anhydride to gamma-butyrolactone and tetrahydrofuran in the liquid-phase. The catalyst was more active than Co and Pd supported o n diatomaceous earth, SiO2 and Al2O3. Co and Pd seem to be stable on N b2O5. Nb2O5.nH2O was active for the hydration of succinonitrile to bet a-cyanopropionamide, that is an intermediate for alpha-pyrrolidone, in the liquid-phase. Niobium oxide showed unique catalytic activities, e specially, in the presence of water.