Non-dispersive solvent extraction of Cu(II) by LIX 973N from ammoniacal/ammonium carbonate aqueous solutions

descriptionPublicationkeyboard_double_arrow_right Article 01 Jul 2002 English Publisher:Elsevier BVJournal:Hydrometallurgy, volume 65, pages 77-82 (issn: 0304-386X,

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Authors: Alguacil, Francisco José; Navarro, Patricio;

doi: 10.1016/s0304-386x(02)00093-2

handle: 10261/43816

Non-dispersive solvent extraction of Cu(II) by LIX 973N from ammoniacal/ammonium carbonate aqueous solutions

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Abstract

The non-dispersive solvent extraction (NDSX) of copper from aqueous ammoniacal/ammonium carbonate medium with LIX 973N using a microporous hydrophobic polypropylene hollow fiber contactor is reported. The influence of aqueous pH, ammonium carbonate concentration, copper concentration, extractant concentration, organic phase volume on relative concentration decrease of copper was investigated as a function of time. These experimental variables barely influenced the decrease in the relative concentration, whereas the module configuration (counter or co-current) influences copper extraction. The relative concentration can be well described as an exponential function of time. Copper stripping is accomplished using sulphuric acid solution.

We thank CSIC for the support and Mr. Bascones and Mr. Lo´pez for the technical assistance.

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Keywords

Copper(II), Non-dispersive solvent extraction, LIX 973N

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