Composition containing at least sodium bicarbonate, preparation method therefor and uses thereof
US6290872A · kind A · utility
5Cited by
10References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1998 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2251/606
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A composition having sodium bicarbonate, sodium carbonate, and ammonia in the form of ammonium salts is formed by heat treating ammoniacal bicarbonate at a temperature between 20 and 150.degree. C. A method of using the composition includes reacting the composition with a flue gas containing HX acids, where X represents halogens, compounds of the SO.sub.x type, or mixtures thereof, or the flue gases may contain NO.sub.x compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.