Mercury contamination extraction
US7692058B2 · kind B2 · utility
3Cited by
20References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2004 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Oct 27, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S588/90
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Mercury is removed from contaminated waste by firstly applying a sulfur reagent to the waste. Mercury in the waste is then permitted to migrate to the reagent and is stabilized in a mercury sulfide compound. The stable compound may then be removed from the waste which itself remains in situ following mercury removal therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.