Method for removal of dissolved metal cations from aqueous fluids using modified capture polymers and tether polymer bearing anchor particles
US8894863B2 · kind B2 · utility
10Cited by
13References
6Claims
0Family size
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Key dates
| Filing date | Mar 17, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | May 20, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2301/08
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Systems and methods are presented for removing an ionic material from a fluid using a capture polymer that sequesters the ionic material and an anchor particle bearing a tethering polymer. The tethering polymer complexes with the capture polymer after the capture polymer has sequestered the ionic material, thereby affixing a complex of capture polymer and ionic material to the anchor particle to form a removable complex. The removable material can be segregated from the fluid via a removal system, thereby removing the ionic material from the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.