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SELECTIVE REMOVAL OF CHROMIUM, NICKEL, COBALT, COPPER AND LEAD CATIONS FROM AQUEOUS WASTE SOLUTION
SELECTIVE REMOVAL OF CHROMIUM, NICKEL, COBALT, COPPER AND LEAD CATIONS FROM AQUEOUS WASTE SOLUTION
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机译:从废水中选择性去除铬,镍,钴,铜和铅的阳离子
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摘要
Aqueous effluent solutions containing metal cations may be treated with an extractant comprising an organophosphinic acid, a di-2-ethylhexyl phosphoric acid and/or an aliphatic amine or a salt of any of these to selectively separate metal cations, for example chromium, nickel, cobalt, copper and lead cations from the aqueous solution. Typical extraction techniques include liquid-liquid extraction employing either mixer settlers or columns, liquid membrane extraction and selective supported membrane extraction.
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