Treatment of mercury contaminated aqueous media
US4147626A · kind A · utility
37Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1977 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Jan 7, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01G13/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A technique for removing substantially all the elemental mercury from a mercury containing aqueous media by adjusting the pH of the liquid to the range of 7-13, adding a polysulfide in an amount sufficient to combine with the elemental mercury to form a mercury sulfide which is precipitated and preventing the mercury from being resolublized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.