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ELECTROLYTIC METHOD FOR PURIFYING CONCENTRATED HYDROCHLORIC ACID SOLUTIONS OF ALLOYS OF PLATINUM WITH RHODIUM, IRIDIUM, AND/OR PALLADIUM
ELECTROLYTIC METHOD FOR PURIFYING CONCENTRATED HYDROCHLORIC ACID SOLUTIONS OF ALLOYS OF PLATINUM WITH RHODIUM, IRIDIUM, AND/OR PALLADIUM
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机译:电解用铑,铱和/或钯净化铂合金浓缩盐酸溶液的方法
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摘要
FIELD: electrolytic processes. SUBSTANCE: invention focuses on recovering high-purity platinum from solutions of its alloys and simultaneously exhausting other precious and alkali metal impurities. Process is carried out in electrolytic cell separated by cation-exchange membrane under potentiostatic conditions or controlled voltage within 8 to 16 V range and current density ranged from 12.5 to 37.5 A/sq.dm, after which exhausted metals of platinum alloy are isolated. Content of platinum alloy in its hydrochloric acid solutions is varied over 50 to 700 g/l range, and summary impurity content is less than 5000 ppm. EFFECT: reduced expenses and environmental damage.
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机译:领域:电解过程。物质:本发明的重点在于从其合金溶液中回收高纯度铂,同时消耗其他贵重和碱金属杂质。在恒电位条件下或在8至16 V范围内且电压密度控制在12.5至37.5 A / sq.dm范围内的受控电压下,在由阳离子交换膜分离的电解池中进行处理,然后分离出铂合金的废金属。铂合金在其盐酸溶液中的含量在50至700 g / l的范围内变化,总杂质含量小于5000 ppm。效果:减少支出和环境破坏。
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