Process for removal of mercury vapor from waste gases
US4273747A · kind A · utility
87Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1980 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | May 16, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B43/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Mercury is removed from a stream of hot waste gases by atomizing an aqueous liquid into the hot waste gases in the presence of fly ash suspended in the gas stream. Subsequently the fly ash is separated from the gas stream. A substantial part of the mercury originally present in the gas stream is absorbed or adsorbed by the fly ash so that the stream of the waste gas can safely be discharged to the atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.