Interactions between components of the extractants LIX 622 and LIX 622N in toluene

Rúa, M.S.; Almela, A.; Elizalde, M.P.

doi:10.1016/j.fluid.2007.06.013

Cited by 4 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[43] In all the experiments, the concentration of Cu(II) is very low compared to that of phosphoric acid. Consequently, the free hydrogen ion concentration, the speciation of the phosphoric acid as well as the ionic strength and the water activity are determined by the total concentration of phosphoric acid.…”

Section: Liquid-liquid Extraction Equilibriamentioning

confidence: 90%

See 1 more Smart Citation

Copper(II) Extraction from Phosphoric Acid Media by 5‐Dodecylsalicylaldoxime (LIX 622)

Ocio

Elizalde

2006

Solvent Extraction and Ion Exchange

View full text Add to dashboard Cite

The extraction of Cu(II) from phosphoric acid media (0.4 -7.3 M) by the commercial reagent LIX 622 in toluene has been studied. Experimental results have been treated numerically and the formation in the organic phase of the complex CuR 2 , HR being 5-dodecylsalicylaldoxime, has been proposed. Values of the conditional extraction constants, which increase with the phosphoric acid concentration, are given. Organic extracts have been analyzed by EPR spectroscopy. The presence of a square planar complex of Cu(II) has been deduced confirming the stoichiometry CuR 2 .

show abstract

Section: Liquid-liquid Extraction Equilibriamentioning

confidence: 90%

“…[43] Using the computer program LETAGROP.DISTR [44] the free concentration of the ligand was calculated. In this case the experimental data fit to straight lines in which slope values are ranging from 1.82 + 0.03 to 1.94 + 0.04 indicating the extraction of a single complex of stoichiometry CuR 2 .…”

Section: Liquid-liquid Extraction Equilibriamentioning

confidence: 99%

Copper(II) Extraction from Phosphoric Acid Media by 5‐Dodecylsalicylaldoxime (LIX 622)

Ocio

Elizalde

2006

Solvent Extraction and Ion Exchange

View full text Add to dashboard Cite

show abstract

Aggregation Equilibria and Interactions Between Components of the Extractants Based on 2-Hydroxy-5-nonylacetophenoneoxime

2018

View full text Add to dashboard Cite

Recovery of copper values from bio-heap leaching of low grade Malanjkhand chalcopyrite ore

Sukla

Nathsarma

Mahanta

et al. 2009

Korean J. Chem. Eng.

View full text Add to dashboard Cite

M/S Hindustan Copper Limited (HCL), India generates large amounts of lean sulfide ores of copper. The current production of lean copper ores in India is 0.55 million tons with ~0.3% average copper content. Heap-bioleaching of the lean copper ores in 15 and 30 ton scales was undertaken at IMMT, Bhubaneswar. The leaching study showed 0.09% dissolution of copper from the ore body per day. The leach liquor was processed through solvent extraction and electrowinning. Extraction of copper from the actual leach liquor was carried out with 1.5% LIX 622N in kerosene with zero co-extraction of iron. The copper-free raffinate was fed back to the leaching unit. Stripping of copper from the loaded organic was carried out with 180 kg/m 3 H 2 SO 4 . The copper pregnant electrolyte was passed through a carbon column to make it free from entrained organic and was fed to the electrowinning unit. The increase in current efficiency was due to the increase in the concentration of electrolyte. The energy consumption was 1.7 kWh/kg at a flow rate of 4.5 L/h. Smooth and bright sheets of copper of 99.99% purity were obtained.

show abstract

Interactions between components of the extractants LIX 622 and LIX 622N in toluene

Cited by 4 publications

References 10 publications

Copper(II) Extraction from Phosphoric Acid Media by 5‐Dodecylsalicylaldoxime (LIX 622)

Copper(II) Extraction from Phosphoric Acid Media by 5‐Dodecylsalicylaldoxime (LIX 622)

Aggregation Equilibria and Interactions Between Components of the Extractants Based on 2-Hydroxy-5-nonylacetophenoneoxime

Recovery of copper values from bio-heap leaching of low grade Malanjkhand chalcopyrite ore

Contact Info

Product

Resources

About