Method of eliminating mercury or arsenic from a fluid in the presence of a mercury and/or arsenic recovery mass
US5245106A · kind A · utility
66Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1991 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Oct 30, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/288
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a method of eliminating mercury or arsenic from a fluid in the presence of a solid mass for the recovery of mercury and/or arsenic. The said mass contains copper and sulphur at least partly in the form of copper sulphide and results (a) from the incorporation of a copper compound other than a sulphide into a solid mineral support, (b) possible calcination of the product obtained in stage (a), and from bringing the product obtained previously into contact with elementary sulphur and (d) a heat treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.