Devices and method for smelterless recycling of lead acid batteries
US10340561B2 · kind B2 · utility
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46References
16Claims
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Key dates
| Filing date | May 13, 2015 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Jul 12, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/84
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.