Process for removal of sulfur oxides from waste gases
US4481172A · kind A · utility
9Cited by
7References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 6, 1983 |
| Grant date | Nov 6, 1984 |
| Priority date | — |
| Expiry date | Apr 6, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/501
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for removing sulfur oxides from waste gas is provided. The gas is contacted with an activated sodium carbonate sorbent and, utilizing an alkaline ammonia liquor so as to reduce the flow rates and loss of alkalinity, the spent sorbent is regenerated with an alkaline earth metal oxide or hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.