Process for modifying the metal ion sorption capacity of a medium
US6436294B1 · kind B1 · utility
15Cited by
16References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1998 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Nov 24, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for modifying a medium is disclosed that includes treating a medium having a metal ion sorption capacity with a solution that includes: A) an agent capable of forming a complex with metal ions; and B) ions selected from the group consisting of sodium ions, potassium ions, magnesium ions, and combinations thereof, to create a medium having an increased capacity to sorb metal ions relative to the untreated medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.