Process for removal of sulfur oxides from waste gases
US4385039A · kind A · utility
22Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1982 |
| Grant date | May 24, 1983 |
| Priority date | — |
| Expiry date | May 27, 2002 |
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 a sorbent selected from sodium bicarbonate, trona and activated sodium carbonate and, utilizing an alkaline liquor containing borate ion so as to reduce 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.