Process for the removal of sulfur dioxide from gases
US4268489A · kind A · utility
4Cited by
5References
3Claims
0Family size
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Inventor
Key dates
| Filing date | Sep 5, 1978 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Sep 5, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/501
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided for treating exhaust gases to remove sulfur dioxide by contacting the gas with a solution of ammonium sulfite and bisulfite in a scrubber. A portion of the solution discharged from the scrubber is oxidized to form ammonium sulfate and the treated gas is further treated with the oxidized solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.