| 摘要 |
A recovery system for platinum electrolytic baths operating at low current densities is disclosed. An oxidizing system is provided in a closed-loop recirculation system for platinum plating at low current densities. The oxidizing system reoxidizes Pt+2 ions, which are typically formed at low current densities, to Pt+4 ions by using oxidizers, for example peroxide. A sensor may be also provided to detect the relative concentration of [Pt+2] ions to [Pt+4] ions and to tailor the relative concentrations to a predetermined level.
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