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1.发明公开Electrolytic recovery of metal from solution 有权ElektrolytischeRückgewinnungvon Metall aus einerLösung
公开(公告)号：EP0972858A1
公开(公告)日：2000-01-19
申请号：EP99202120.4
申请日：1999-06-29
摘要： Recovery of silver from a photographic fixer solution in an electrolytic cell is controlled so as to maintain a high current efficiency whilst minimising unwanted side effects.
The difference between plating voltages when operating at two different current levels is monitored, and the plating current adjusted in response to detection of a maximum of said differences.
Such control allows the cell to be operated continually at high current efficiency in response to changing chemical conditions within the cell.摘要翻译： 控制从电解池中的照相定影剂溶液中回收银，以便保持高电流效率同时最小化不希望的副作用。 监测在两个不同电流水平下工作时的电镀电压之间的差异，并且响应于检测到所述差异的最大值来调整电镀电流。 这种控制允许电池响应于电池内的变化的化学条件以高电流效率连续地操作。
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公开(公告)号：EP0972858B1
公开(公告)日：2003-08-13
申请号：EP99202120.4
申请日：1999-06-29
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