Solvent extraction of copper from acidic chloride solutions with LIX 84

Elizalde, M.P.; Rúa, M.S.; Menoyo, B.; Ocio, A.

doi:10.1016/j.hydromet.2018.12.013

Cited by 15 publications

(5 citation statements)

References 22 publications

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“…At present, China's manganese sulfate is primarily obtained by leaching manganese ore with sulfuric acid and then removing impurities, the purpose of impurity removal is to remove iron, calcium, magnesium and other heavy metals and other impurities [5]. However, there are few studies on the deep removal of iron, calcium, magnesium and heavy metals from manganese sulfate solutions [6][7][8], most of the studies focusing on the purification of some elements, such as the removal of nickel and cobalt using sulfides, the removal of calcium and magnesium using fluorides [9][10], and the extraction and separation of manganese from calcium, magnesium, potassium, sodium, etc. [11].…”

Section: Introductionmentioning

confidence: 99%

Extraction Technology for Manganese Sulfate Solution Purification

Xie

Jin

2023

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Manganese sulfate is an important base manganese salt; nearly 80% of the world's manganese products are produced using manganese sulfate or manganese sulfate solution. Furthermore, manganese sulfate has many applications in industry and agriculture; thus, manganese sulfate solution impurity removal technology is important. This study aims to remove impurities from manganese sulfate solution-using complex low-grade manganese ore and manganese-rich fumes after pressure acid leaching to obtain a manganese sulfate solution, which is then purified through iron removal by oxidation neutralization; finally, the purified liquid is treated using extraction-back-extraction. We investigated the effects of various extraction parameters on the extraction rate of manganese, as well as the effects of various back-extraction parameters on the manganese back-extraction rate and manganese ion concentration in the back-extraction solution, and studied the extraction-back-extraction process. We found that the extraction and back-extraction rates of manganese could reach 95% and 96.9%, respectively, under optimal conditions..

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Section: Introductionmentioning

confidence: 99%

Extraction Technology for Manganese Sulfate Solution Purification

Xie

Jin

2023

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“…Hydroxyoxime (ketoxime and aldoxime) is one of the reagents used in large-scale copper extractants. Ketoximes and aldoximes are very selective for the extraction of copper over impurities from sulfate, nitrate, and perchlorate solutions [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Solvent Extraction of Metal Ions from Synthetic Copper Leaching Solution Using R4NCy

Sepúlveda

Toro

Hernández

et al. 2022

Metals

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Recent works suggest that the use of ionic liquids in the copper solvent extraction industry is feasible. However, the reports did not use real solutions (or synthetic solutions with various elements). This fact remains poorly established, and the interaction efficiencies are still under study. The objective of this research is to explore the extraction and stripping of the four major elements present in a copper industrial pregnant leach solution (Cu(II), Fe(III), Mn(II), and Zn(II)) using the methyltrioctyl/decylammonium bis(2,4,4-trimethylpentyl)phosphinate (R4NCy) ionic liquid as an extractant. The work conditions studied in extraction were ionic liquid concentration, initial pH, and O/A ratio, and in stripping were H2SO4 concentration and O/A ratio. The test was carried out at room temperature and ambient pressure. High efficiency and selectivity (99.82% and 113,755 over Cu(II), respectively) were observed for Fe(III) extraction over the other elements. Moreover, after the extraction test, significant difficulty in stripping Fe(III) loaded in the ionic liquid was observed (28.7% at 0.5 M of H2SO4). Finally, the present study demonstrates that the R4NCy ionic liquid is not suitable for copper extraction because it has a higher selectivity for Fe(III) and Zn(II).

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“…Because copper is one of the most important base metals, the big economic development year by year will cause a serious copper supply and demand contradiction ( Yu et al, 2020 ). Although there are many ways to extract and recover copper ions, solvent extraction is still the most effective and key technique ( Farrell et al, 2010 ; Watling et al, 2014 ; Edebali and Pehlivan, 2016 ; Wang et al, 2018 ; Elizalde et al, 2019 ; Wang et al, 2020 ). Therefore, it is urgent to improve the solvent extraction technology and develop novel extractants to overcome this contradiction ( Li et al, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Tert-Octylsalicylaldoxime and Its Application in Extraction of Cu(II)

Luo

Liao

et al. 2021

Front. Chem.

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The alkyl salicylaldoxime has attracted more and more attention recently due to the complex branched alkyl groups. In this study, a novel alkyl salicylaldoxime, tert-octylsalicylaldoxime, was successfully synthesized by the one-pot method. The yield and purity by the elemental analysis were 96.17 and 94.13%, respectively. The structure was confirmed by elemental analysis, FT-IR, 1H NMR (Nuclear Magnetic Resonance), 13C NMR spectroscopy, and MS. Results showed that tert-octylsalicylaldoxime with a new structure exhibited excellent extraction ability and selectivity for Cu(II) and can be successfully used to recover Cu from copper-nickel alloy electroplating wastewater. Thus, this product has the potential to be used as a powerful copper extractant in the future.

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Solvent extraction of copper from acidic chloride solutions with LIX 84

Cited by 15 publications

References 22 publications

Extraction Technology for Manganese Sulfate Solution Purification

Extraction Technology for Manganese Sulfate Solution Purification

Solvent Extraction of Metal Ions from Synthetic Copper Leaching Solution Using R4NCy

Synthesis of Tert-Octylsalicylaldoxime and Its Application in Extraction of Cu(II)

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