发明名称 |
Dimensionally stable coated electrode for electrolytic process, comprising protective oxide interface on valve metal base, and process for its manufacture. |
摘要 |
<p>An electrode for use in an electrolytic process is provided with a mixed oxide interface between a titanium base and an outer coating. The mixed oxide is formed at said interface by means of titanium from the base and noble metal from a solution containing a predetermined amount of HC1 which attacks the titanium base surface. Slow drying provides a metal chloride mixture which is thermally converted to said mixed oxide of titanium and noble metal in a given ratio, whereby to protect the titanium base from oxidation.</p><p>An outer coating of manganese dioxide or lead dioxide is electroplated on the mixed oxide layer so as to provide an inexpensive electrode with improved resistance to oxidation.</p><p>This electrode can be used for various processes where a high resistance to oxidation is required, e.g. as a manganese dioxide anode in a metal electrowinning process or as a lead dioxide anode for electroflotation or organic oxidation reactions.</p> |
申请公布号 |
EP0046449(A1) |
申请公布日期 |
1982.02.24 |
申请号 |
EP19810810323 |
申请日期 |
1981.08.11 |
申请人 |
DIAMOND SHAMROCK CORPORATION |
发明人 |
HINDEN, JEAN MARCEL;BEER, HENRI BERNARD |
分类号 |
C25B11/04;C25B11/10;C25B11/16;C25C7/02;(IPC1-7):25B11/10;25C7/02;25D17/10;25B11/16 |
主分类号 |
C25B11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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