Synthesis of sequestration resins for water treatment in light water reactors
US8975340B2 · kind B2 · utility
4Cited by
27References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 23, 2011 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | May 23, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An organic synthesis of materials to achieve removal of low molecular weight ionic species, such as transition metal ions including cobalt, iron, nickel, and zinc, from aqueous solutions. The synthesis includes the steps of providing a cation exchange resin, functionalizing the cation exchange resin using a chloride intermediate to form a sulfonyl chloride resin, and reacting a multi-amine based ligand with the sulfonyl chloride resin to form a sequestration resin. The synthesis further includes the steps of cooling the sequestration resin, and washing and drying the sequestration resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.