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    • 7. 发明申请
    • SEPARATING METAL IONS ABSORBED ON A RESIN AND INSTALLATION FOR RECYCLING PHOTOGRAPHIC EFFLUENTS INCLUDING AN EXCHANGER AND AN ELECTROLYSIS VESSEL
    • 分离在树脂上吸收的金属离子和安装用于回收照相影像的装置,包括交换器和电解槽
    • WO98059081A1
    • 1998-12-30
    • PCT/FR1998/001242
    • 1998-06-12
    • G03C5/00B01J49/00C22B3/24C22B3/42C22B11/00C25C1/20G03C5/395C22B11/12
    • C25C1/20B01J49/30G03C5/395Y02P10/212
    • The invention concerns a method for separating metal ions absorbed on a resin consisting in: suspending or percolating the cationic exchange resin charged with a polar solvent containing an eluting agent or a mixture of eluting agents containing at least an organic or mineral ligand complexing the metal ions to be separated; in circulating a direct electric current, whether constant or not, in the charged eluting solution forming an electrolyte so as to recuperate at least a metal by deposition; and finally by repeating, if necessary, the last step by setting up one or several cathode(s) made of another metal and by re-adjusting the cathode potential and the anode/cathode potential difference to new values, depending on the new type of metal to be recuperated. The invention also concerns an installation for treating/recycling photographic bath waste comprising an exchanger (2, 2') connected to a tank (3) for waste bath to be treated, to a treated waste bath tank (4), to a regenerating solution tank (5) and to an electrolysis vessel (6).
    • 本发明涉及一种用于分离吸收在树脂上的金属离子的方法,该方法包括:悬浮或渗透装有含有洗脱剂的极性溶剂的阳离子交换树脂或至少含有与金属离子络合的有机或无机配体的洗脱剂混合物 被分开 在形成电解质的带电洗脱溶液中循环直流电(无论是否恒定),以通过沉积使至少金属回收; 最后如果需要,通过设置由另一种金属制成的一个或多个阴极和通过将阴极电位和阳极/阴极电位差重新调整为新值来重复(如果需要的话)最后一步,这取决于新的 金属要恢复。 本发明还涉及一种用于处理/回收照相浴废物的装置,其包括连接到待处理废液槽的罐(3)的交换器(2,2')到经处理的废液槽(4),再生溶液 罐(5)和电解容器(6)。