Adsorbing Colloid Flotation of Cu(II) with a Chelating Surfactant

Abstract
Cu(II) is effectively removed from synthetic mixtures by dodecylamine-N,N-diacetic acid with Fe(OH)3 and a carrier foam. The effects of pH and ionic strength on the separation are ascertained. Cu(II) is effectively floated at much higher ionic strengths with dodecylamine-N,N-diacetic acid than with nonchelating surfactants such as sodium lauryl sulfate.

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