Removal of sulfur dioxide (SO.sub.2) from waste gases and recovery as sulfuric acid
US4830718A · kind A · utility
32Cited by
11References
8Claims
0Family size
Inventor
Key dates
| Filing date | Apr 17, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Apr 17, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B1/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided by means of acid scrubbing in combination with electrolysis for removing sulfur dioxide from a waste gas stream such as effluent vent of flue gas, for purposes of economy, for achieving a useful by-product, and for minimizing environmental pollution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.