Method for preparing nickel-zinc-copper or nickel-zinc alloy electroplating solutions from zinc-containing waste articles having a nickel/copper electroplating layer
US5906725A · kind A · utility
4Cited by
0References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 23, 1997 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | Jun 23, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D21/14
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A zinc-containing waste article is recycled by a method in which the zinc of the waste article is recovered in a molten state while the unmolten nickel/copper electroplating layer of the waste article is dissolved in an acidic solution to form a nickel-zinc alloy or a nickel-zinc-copper alloy electroplating solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.