Effect of the Structure of Alkyl Salicylaldoxime on Extraction of Copper(II)

Li, Liqing; Wang, Yi; An, Wenjuan; Bao, Shenxu

doi:10.3390/min7040061

Cited by 9 publications

(3 citation statements)

References 20 publications

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“…It is clear that the alkyl substituents are important in metal-ion extraction. ,, To deeply understand the interaction between metal ions and extractants and to explain the influence of alkyl substituents, a simplified extraction model was calculated with the density functional theory, as described in Section . The results are listed in Table .…”

Section: Resultsmentioning

confidence: 99%

Extraction Behavior of Acidic Phosphorus-Containing Compounds to Some Metal Ions: A Combination Research of Experimental and Theoretical Investigations

Xiang

Lin

et al. 2020

J. Phys. Chem. A

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To provide feasible methods for the extraction of valuable metals from spent batteries or low-grade primary ores, the extraction behavior of some representative acidic phosphorus-containing compounds (APCCs) as extractants is evaluated from the perspective of experimental and theoretical investigations in this work. Aqueous solutions containing five metal ions, Ca(II), Co(II), Mg(II), Mn(II), and Ni(II), were made to simulate leaching liquids, and the extraction of these metals was investigated. A simplified calculated model was used to evaluate the interaction between each extractant and metal ions. The calculation results agree well with the experimental tests in trend. This work not only provides potential extractants for the extraction of valuable metals from spent batteries or low-grade primary ores but also demonstrates the practicability of the simplified calculation model.

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Section: Resultsmentioning

confidence: 99%

Extraction Behavior of Acidic Phosphorus-Containing Compounds to Some Metal Ions: A Combination Research of Experimental and Theoretical Investigations

Xiang

Lin

et al. 2020

J. Phys. Chem. A

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“…This results in an overall increase in the mass transfer between two phases even at lower pHs, as shown in the Figure 1, while at high pHs, it remains relatively unchanged. This behavior may be due to the formation of solids or colloidal particles at high pH levels for oxime-based extractants [22]. It was also observed that an amount of crud accumulated during the tests, which increased with increasing extractant concentration at higher pH values [23].…”

Section: Effect Of Ph and Extractant Concentrationmentioning

confidence: 87%

Solvent Extraction Studies of Copper from a Heap Leach Liquor Using Mextral 5640H

Hosseinzadeh

Petersen²,

Azizi³

2022

Minerals

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In this study the extractive capability of Mextral 5640H was investigated for extraction of copper from a heap leach liquor. In this regard, the influence of parameters such as pH (0.2–2.8), extractant concentration in kerosene diluent (5%–15% v/v), temperature (25–70 °C), contact time (0–300 s), stirring speed (100–1200 rpm), phase ratio (O/A) (0.6–1.8) and Cu initial concentration (0.5–2 g/L) in the leach liquor were examined and optimized. The findings demonstrated that the Mextral 5640H extractant had a very high efficiency and selectivity in copper extraction from the leachate. 98.17% Cu, with less than 0.5% of Fe and Mn, were extracted at pH 1.6, 10% (v/v) Mextral 5640H concentration, ambient temperature (25 °C), 400 rpm stirring speed, 2 min contact time and an O/A phase ratio of 1:1. Under equilibrium conditions it was found that one mol of Cu is extracted by 7 mol of Mextral 5640H. Additionally, analysis using a McCabe–Thiele diagram suggests a two-stage extraction to reach the maximum extraction of copper (99.5%) from the leachate at operational condition using industrial mixer-settlers. Furthermore, a thermodynamic study was conducted, and the measured values of ΔH = 15.13 kJ/mol, ΔG = −6.95 kJ/mol and ΔS = 74.10 J/mol/K indicate an endothermic, spontaneous nature and high affinity of copper extraction.

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“…The focus of this study was to create novel salicylaldoximes with new structures for Cu(II) extraction. Tert-octylsalicylaldoxime (TOSO) was successfully synthesized by the one-pot method in the laboratory ( Li et al, 2017 ). Moreover, its properties and extraction ability for Cu(II) were investigated using the extraction test.…”

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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Effect of the Structure of Alkyl Salicylaldoxime on Extraction of Copper(II)

Cited by 9 publications

References 20 publications

Extraction Behavior of Acidic Phosphorus-Containing Compounds to Some Metal Ions: A Combination Research of Experimental and Theoretical Investigations

Extraction Behavior of Acidic Phosphorus-Containing Compounds to Some Metal Ions: A Combination Research of Experimental and Theoretical Investigations

Solvent Extraction Studies of Copper from a Heap Leach Liquor Using Mextral 5640H

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

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