Method for recycling NO in a system producing ferric sulfate
US4818514A · kind A · utility
2Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Sep 15, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/05
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a method of using air to reclaim and recycle potentially contaminating NO in a system producing ferric sulfate solution from the oxidation of ferrous sulfate and sulfuric acid in the presence of NO and oxygen. The present invention economically avoids a potentially wasteful and hazardous production of NO containing gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.