Water balance improvement in an effluent treatment process for sulphate removal
US12428324B2 · kind B2 · utility
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Key dates
| Filing date | Sep 24, 2020 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Oct 20, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/06
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method to improve the solid/solid separation of an amorphous aluminium trihydroxide containing suspension from a gypsum containing suspension in a saturated calcium sulphate solution without the need for a dewatering step following the solid-solid separation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.