Column material for the capture of heavy metal and precious metal ions
US10549270B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Nov 20, 2014 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Nov 1, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Composite ion-exchange materials for use in an ion-exchange column are provided. Also provided are ion-exchange columns packed with the materials and methods for using the materials to remove metal ions from samples, such as waste water samples. The composite ion-exchange materials comprise a composite material comprising a metal chalcogenide and an alginate, wherein the composite material is mixed with a granular material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.