Ion flotation of zinc using ethylhexadecyldimethylammonium bromide |
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Authors: | Curtis W McDonald Olubunmi A Ogunkeye |
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Institution: | Department of Chemistry, Texas Southern University, Houston, Texas 77004 USA |
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Abstract: | Zinc ions react with the surfactant ethylhexadecyldimethylammonium bromide (EHDABr) to form a surface active sublate which can be removed from aqueous chloride solutions by ion flotation. A typical ion flotation procedure involves passing air through a 235-ml solution containing 5 ppm Zn2+, 2.0 M HCl, and 2.5 × 10?3M EHDABr at a flow rate of 40 ml/min for 150 min. The procedure is simple and rapid. Cadmium, copper, lead, and nickel ions cause reductions of zinc flotation efficiencies of less than 2.5% under the experimental conditions. |
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Keywords: | To whom correspondence should be addressed |
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