Method of scavenging oxygen from boiler waters with substituted quinolines
US5167835A · kind A · utility
21Cited by
19References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Nov 6, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
New oxygen scavengers for boiler waters have been discovered, which oxygen scavengers are based upon substituted quinoline compounds. These compounds provide oxygen scavenging capabilities, metal passivating capabilities, and volatility such that condensate systems in an operating boiler are protected. The compounds may be formulated with other oxygen scavengers and other common treatment agents used in boiler waters, especially the volatile amine, such as, but not limited to, morpholine and diethylhydroxylamine. The preferred quinoline compounds is ethoxyquin, i.e. 6-ethoxy-1,2,-dihydro-2,2,4-dihydroquinoline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.