Lead recycling
US8323376B2 · kind B2 · utility
14Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2007 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Dec 29, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/84
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention describes a method of recycling lead from lead containing waste, the method comprising the steps of mixing the battery paste with aqueous citric acid solution so as to generate lead citrate; isolating lead citrate from the aqueous solution; and converting the lead citrate to lead and/or lead oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.