Floatation-Atomic Absorption Spectrophotometric Separation and Determination of Copper.

Abstract

An experimental investigation is presented for the colloidal floatation of copper (II) ions, as sulfide, from aqueous solutions using sodium sulfide and oleic acid (HOL). The effects of pH, the concentrations of sodium sulfide and HOL, the reagent's order, the interference from different ions and the ionic strength have been studied. The maximum floatation efficiency of Cu²⁺ (ca. 100%) was obtained in a wide pH (1–8.7) range. It was found that, the order of the additive reagents, markedly affects the floatability. Both of foreign ions and ionic strength have no appreciable effect on the floatation efficiency.