Method of heavy metal removal from water streams
US9328003B2 · kind B2 · utility
0Cited by
40References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Aug 29, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/346
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides methods and compositions for separating metals from a liquid medium, the method uses a copolymer derived from at least two monomers: acrylic-x and an alkylamine, wherein said polymer is modified to contain a functional group capable of scavenging one or more compositions containing one or more metals are disclosed. The treated liquid is then passed through a filtration system. The scavenging effect of the combination of the treatment with the filtration is unexpectedly greater than the sum of its parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.