Abstract
Al3+ was extracted out from a synthetic solution comprising of 1.0 kg/m3 Al3+ and 10 kg/m3 Na2SO4 using 0.1 mol/L NaD2EHPA in kerosene. Extraction of aluminum increased as pH increased, and extractant concentration variation revealed that two moles of extractant were required to extract one mole of aluminum. In the presence of various salts in solution, the effect of sodium salts on extraction was more than the ammonium salts. Aluminum was extracted from the solution in two phases using 0.1 mol/L NaD2EHPA at a O/A ratio of 1:1. Aluminum was stripped from the loaded organic phase in two stages having 122 kg/m3 H2SO4 at 4:1 O/A ratio.
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