Extraction of mercury and mercury compounds from contaminated material and solutions
US5226545A · kind A · utility
18Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1992 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Oct 19, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/60
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Mercury and mercury-containing compounds can be removed from soil, sand, and similar materials by a remediation method in which the contaminated material is treated with an aqueous composition comprising an oxidant, such as iodine, and a complexing or solubilizing agent, such as potassium iodide, the liquid and solid phases are separated, and further processed as needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.