Method for removal of mercury in sulfur dioxide-containing gas
US3961031A · kind A · utility
15Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 1974 |
| Grant date | Jun 1, 1976 |
| Priority date | — |
| Expiry date | Nov 11, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for the removal of mercury contained in a sulfur dioxide-containing gas which comprises contacting the sulfur dioxide-containing gas with an aqueous thiourea solution which optionally contains an acid at an acid concentration higher than one normal to selectively absorb mercury in a vapor state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.