Method for manufacturing electrolytic copper
US9932682B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Sep 10, 2013 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Feb 9, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C1/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided is a method for producing electrolytic copper having a low Ag content by successfully suppressing the Ag concentration in an electrolytic solution. The electrolytic copper production method involves a step in which blister copper comprising Ag is used as an anode, and electrolysis is carried out under sulfuric acid acidity while maintaining the anode electric potential at a relatively low electric potential in comparison to the electric potential of the Ag elution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.