Method for the recovery of iodine from an environment
US5520901A · kind A · utility
16Cited by
11References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1993 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Jul 21, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B7/13
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of removing iodine from an environment which had been previously treated with a composition containing iodine and an iodide salt is disclosed. The method involves the addition to the environment of at least one reagent which is a metal sulfite salt or a hydroxide-producing compound, in an amount sufficient to water-solubilize substantially all of the iodine, followed by recovery of the iodine. This technique is particularly useful for recovering iodine from extractant solutions used in the removal of mercury from contaminated materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.