Raney-type catalysts for the hydrogenation of halonitroaromatic compounds
US5689021A · kind A · utility
6Cited by
4References
22Claims
0Family size
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Key dates
| Filing date | Mar 26, 1996 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Mar 26, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/365
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Halonitroaromatic compounds, e.g., 3-chloro-4-fluoronitrobenzene, are selectively hydrogenated into the corresponding haloaromatic amines, in the essential absence of hydrodehalogenation, by reacting same with hydrogen in the presence of a catalytically effective amount of a novel Raney-type catalyst composition consisting essentially of an alloy of nickel, aluminum and molybdenum, Ni/Al/Mo, the Al/Mo ratio by weight thereof being equal to or greater than 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.