Recovery of regenerant electrolyte
US9776137B2 · kind B2 · utility
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16References
15Claims
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Inventor
Key dates
| Filing date | Nov 12, 2009 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Dec 24, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31725
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods, systems and compositions for recovery of regenerant ions from spent regenerant solution by utilization of electrodialysis are provided. For example, in certain aspects methods for separating spent regenerant using an electrodialysis system comprising selective membranes are described. Furthermore, the invention provides methods for treating a friable solid ion-removal material to prevent fragmentation during regeneration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.