Flowsheets - an overview | ScienceDirect Topics
(a) In the extraction process, the PLS (feed to the SX process) (containing 1–20 g/L Cu 2+, 0.5–15 g/L H 2 SO 4) is contacted with an organic phase containing an organic extractant that reacts selectively with Cu. The extractant complexes with Cu 2+, resulting in transfer of the metal ion from the aqueous phase into the organic phase, leaving all other impurity species present …