Process for removing mercury from aqueous solutions
US4614592A · kind A · utility
16Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1985 |
| Grant date | Sep 30, 1986 |
| Priority date | — |
| Expiry date | Mar 4, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/914
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for removing mercury from water to a level not greater than two parts per billion wherein an anion exchange material that is insoluble in water is contacted first with a sulfide containing compound and second with a compound containing a bivalent metal ion forming an insoluble metal sulfide. To this treated exchange material is contacted water containing mercury. The water containing not more than two parts per billion of mercury is separated from the exchange material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.