Process for recovering components from alkaline batteries
US12125996B2 · kind B2 · utility
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3References
19Claims
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Key dates
| Filing date | Apr 23, 2021 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Oct 23, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/84
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to separation and recovery of metals from ground alkaline batteries using anode mud (zinc electrolysis waste) and other manganese and zinc containing materials. The material commonly referred to as alkaline black (AKB) is solubilized into sulfate media and the manganese to zinc ratio is adjusted. The solution containing metals is processed using crystallization and ion exchange methods to produce manganese sulfate and zinc sulfate solutions for several possible applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.