Process for producing crystallized metal sulfates
US10995014B1 · kind B1 · utility
5Cited by
17References
30Claims
0Family size
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Key dates
| Filing date | Oct 9, 2020 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Oct 9, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/84
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for generating a metal sulfate that involves crystallizing a metal sulfate from an aqueous solution to form a crystallized metal sulfate in a mother liquor with uncrystallized metal sulfate remaining in the mother liquor; separating the crystallized metal sulfate from the mother liquor; basifying a portion of the mother liquor to convert the uncrystallized metal sulfate to a basic metal salt; and using the basic metal salt upstream of crystallizing the metal sulfate. So crystallized, the generated metal sulfate may be battery-grade or electroplating-grade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.