Spiral-wound electrodialysis module
US10926224B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Oct 16, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Feb 4, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spiral-wound electrodialysis module includes an inner electrode positioned about a central axis and an outer electrode surrounding the inner electrode. Ion exchange membranes are arranged in a stack, and each membrane extends in a spiral outward from an inner position proximate the inner electrode to an outer position proximate the outer electrode. The spirals expand outward at a greater-than-linear rate as a function of angle along a length of the spiral from the inner positions to the outer positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.