Back to Search
Start Over
Hydrogenation of Aromatic Nitrogroups with Precious Metal Powder Catalysts: Influence of Modifier on Selectivity and Activity.
- Source :
-
Topics in Catalysis . Sep2010, Vol. 53 Issue 15-18, p1126-1131. 6p. 4 Diagrams, 3 Charts. - Publication Year :
- 2010
-
Abstract
- The development of new improved catalysts for the selective hydrogenation of aromatic nitrogroups is still a field of high interest for the chemical industry. Hydrogenation of aromatic nitrogroups to the corresponding aromatic amines is one of the most important applications for precious metal powder catalysts (PMPC). In this paper various commercial PMPC technologies such as palladium, platinum, platinum modified with copper and platinum modified with vanadium on activated carbon powder supports were compared to each other in regard to activity and selectivity for hydrogenation of 1-chloro-2-nitrobenzene. In this reaction, catalysts comprised of vanadium modified platinum on activated carbon showed excellent activities and selectivities towards 2-chloroaniline. Catalyst performance was affected by the ratio of platinum to vanadium and the properties of the carbon. The role of vanadium as an effective modifier to avoid accumulation of hazardous aromatic hydroxylamines was explained. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HYDROGENATION
*CHEMICAL inhibitors
*CHEMICAL industry
*AROMATIC compounds
*VANADIUM
Subjects
Details
- Language :
- English
- ISSN :
- 10225528
- Volume :
- 53
- Issue :
- 15-18
- Database :
- Academic Search Index
- Journal :
- Topics in Catalysis
- Publication Type :
- Academic Journal
- Accession number :
- 52369202
- Full Text :
- https://doi.org/10.1007/s11244-010-9545-1