Amine oxide process
US5208374A · kind A · utility
6Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1992 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Sep 23, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C291/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A non-aromatic tert-amine is oxidized with hydrogen peroxide at about 20.degree.-100.degree. C. by a carbon dioxide-accelerated high solids process in which discoloration of the amine oxide product is minimized by diluting the carbon dioxide before allowing it to contact the reaction mixture so that the entire reaction is conducted in an atmosphere composed of carbon dioxide and an amount of inert gas, such as nitrogen or air, which is at least equal in volume to the amount of carbon dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.