Reference : Separation of Copper and Zinc by Solvent Extraction During Reprocessing of Flotation ...
Scientific journals : Article
Engineering, computing & technology : Geological, petroleum & mining engineering
Separation of Copper and Zinc by Solvent Extraction During Reprocessing of Flotation Tailings
Kitobo, Willy [> >]
Gaydardzhiev, Stoyan mailto [Université de Liège - ULg > Département Argenco : Secteur GeMMe > Traitement et recyclage des matières minérales >]
Frenay, Jean mailto [Université de Liège - ULg > Services généraux (Faculté des sciences appliquées) > Relations académiques et scientifiques (Sciences appliquées) >]
Ilunga, Ndala [> >]
Bastin, David mailto [Université de Liège - ULg > Département ArGEnCo > Génie minéral et recyclage >]
Separation Science & Technology
Taylor & Francis Ltd
Yes (verified by ORBi)
[en] solvent extraction ; heavy metals ; flotation tailings
[en] Results from solvent extraction of copper and zinc from pregnant solutions after bioleaching of re-floated tailings from the Kipushi concentrator in DR of Congo are presented. LIX984N has been used as extractant for copper, while D2EHPA as such for zinc, following prior removal of the ferric iron via precipitation. The McCabe-Thiele diagrams constructed for Cu and Zn extraction have theoretically suggested the need for two stages for copper and one for zinc. Stripping these metals to aqueous phase by sulphuric acid has yielded rich electrolytes with 48.5 g/L copper and 85.5 g/L zinc. Thus, copper and zinc could be further recovered from the stripped solutions by electrolysis.

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