Preparation of hydroxylamines from ammonia or the corresponding amines, hydrogen and oxygen
US5777163A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1997 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Apr 4, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B21/1409
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydroxylamines are prepared from ammonia or the corresponding amines, hydrogen and oxygen by a process in which the starting materials are reacted under heterogeneous catalysis using an oxidation catalyst based on a titanium or vanadium silicalite having a zeolite structure and containing from 0.01 to 20% by weight of one or more platinum metals selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, the platinum metals each being present in at least two different bond energy states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.