Abstract
Based on leaching experiments of complex silicate ore contenting scandium, the research has adopted extraction to concentrate scandium and separate impurity. The emphasis of this reaserch is the impact factors, so the experiments including extractant concentration, organic aqueous ratio, mixing time, organic phase washing, organic phase reextraction, have been conducted. The optimal conditions are that the concentration of extraction is 25%, the O/A is 1:10, the mixing time is 3min, the washing time is 3, the O/A of reextraction is 1:2.3, and the extraction rate of exceeding 98% and reextracion rate of 99.01% were obtained when adopting P501 as the extraction agent.
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