In this paper, a new strategy based on a supported liquid membrane (SLM) system for the simultaneous and selective separation of copper, cobalt, and nickel in ammonia/ammonium chloride solutions, using a two-membrane-three-compartment cell (sandwich SLM) was proposed. This model used two polyvinylidene difluoride (PVDF) membranes both …
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In this paper, a solvent extraction (SX)-based process for the separation of copper from nickel in ammoniacal solution using a combination of powerful extractants, LIX 84-I, and commercially available organophosphorus extractant, tri-butyl phosphate (TBP), is proposed. This combination is a practical, efficient and green approach to employ, and ...
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Mechanochemical activation was used to the separation of copper and nickel. The CaCO 3 was effective to separate copper from nickel in sulfate solutions. Over 99% Cu (II) …
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Kinoshita et al. (2003) reported the separation of copper and nickel from nitrate media containing 11 180 mg/L Cu and 1160 mg/L Ni using 200 g/L LIX® 984. Extraction and separation of copper and nickel by LIX® 984N from ammoniacal medium was investigated by Sridhar et al. (2009). They found that both the metals co-extracted over the pH range ...
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Separations of copper from nickel, and of copper from cobalt are described, using cation exchange resins. The apparatus, resin, and separatory technique are outlined. 2.5M sodium chloride is used for liberation of nickel and cobalt from the resin.
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In this paper, the nanoporous SPPESK/PES blend membrane was used for the separation of copper and nickel in membrane extraction contactor based LIX84-I. A synthetic wastewater containing copper and nickel was used as the feed solution. LIX84-I in dodecane (20 vol.%) was used as extractant and a H 2 SO 4 (2 mol/L) solution as the strip. Both ...
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There were some problems,such as low-grade copper concentrate,nickel concentrate containing high copper,higher reagents dosage,poor separation efficiancy,etc.,during copper nickel separation of flotation process on sulfide nickel copper ore in Xinjiang Yakesi resource development incorporated company,Hami district,Xinjiang Uygur Autonomous …
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A separation factor range of 93–170 for copper over nickel was obtained in the CaCl 2 concentration range of 100–320 g/L. Considering copper extraction and its separation from nickel and cobalt, a target CaCl 2 concentration of 200 g/L is suggested to be used with the separation factor of copper over nickel and cobalt of 138 and 1020 ...
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Exploring the selective adsorption of Cu(II) from nickel electrolytes by tert-butyl 2-(N-octyl-2-picolyamino) acetate (AMPA) functionalized chelating resin is of great implication for accurately regulating the interface interaction.In this study, based on the first-principles density functional theory (DFT), the pK a values of functional group AMPA were calculated, the H 2 O …
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The separation of copper and nickel in ammonia solution is challenging in hydrometallurgy. In this work, an emulsion liquid membrane (ELM) was constructed using M5640 as an extractant, Span 80 as a non-ionic surfactant, and kerosene as a solvent for the selective separation of Cu(II) and Ni(II) in ammoniacal/ammonium chloride solutions.
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Separation experiments indicated that more than 99.5% of cobalt, 98.0% of nickel, and 98.9% of copper were separated into three different compartments from a mixed feed solution containing 100 mg/L each of copper, cobalt, and nickel within a transport time of 36 h under the following experiment conditions: 20 vol.% M5640/kerosene as the carrier ...
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In this review, we present a comprehensive review of the nickel removal methods used for nickel anolyte purification, electrochemical purification, chemical precipitation, solvent extraction, and ion-exchange resins. We also …
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In this study, sodium polyacrylate (PAAS) and ultrafiltration membranes were used to extract and separate Cu2+ and Ni2+ ions from electroplating wastewater. The effects of pH, the P/M ratio (mass ratio of sodium polyacrylate to metal ions), tartaric acid, and sodium citrate on the complexation of Cu2+ and Ni2+ by sodium polyacrylate were investigated. The retention of …
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A mixed extractant system was developed to separate copper, zinc, and iron from nickel and cobalt with CYANEX 272 and LIX 84. [56][57][58][59] Compared with the organic system containing 17% (v/v ...
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The remaining solution contains aluminum, copper and nickel. If you want to separate copper, you may add $pu{2 g}$ potassium iodide $ce{KI},$ that will make a precipitate of copper(I) iodide $ce{CuI}$ according to the …
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In this study, sodium polyacrylate (PAAS) and ultrafiltration membranes were used to extract and separate Cu 2+ and Ni 2+ ions from electroplating wastewater. The effects of pH, the P/M ratio (mass ratio of sodium polyacrylate to metal ions), tartaric acid, and sodium citrate on the complexation of Cu 2+ and Ni 2+ by sodium polyacrylate were investigated. . The retention …
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Various methods, such as electrochemical purification, chemical precipitation, solvent extraction, and ion-exchange resins, have been extensively employed for the removal of copper from nickel anolytes. However, these methods exhibit several significant drawbacks when applied in industrial settings. For instance, electrochemical purification fails to efficiently …
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Separation and recovery of copper from a synthetic copper-nickel solution containing 6.35 g/L Cu(II) and 0.58 g/L Ni(II) was carried out using 20%(v/v) LIX® 984N. The separation factor ( = …
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reported the separation of copper and nickel from nitrate media containing 11 180 mg/L Cu and 1160 mg/L Ni using 200 g/L LIX® 984. Extraction and separation of copper and nickel by LIX® 984N from ammoniacal medium was investigated by Sridhar et al. (2009). They found that both the metals co-extracted over the pH range 7 to 9. A selective
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Although the separation of co-extracted copper and nickel can be achieved by selective stripping of the loaded organic phases under different acidity conditions [5], [23], the coextracted nickel decreases the extraction sites of the extractant for copper and increases the number of unit operation for extraction and stripping stages [17]. As a ...
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The process consists of partial decopperisation of the bleed stream followed by crystallization of a mixed salt of copper and nickel sulphate, leaching of the mixed salt, …
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DOI: 10.1016/J.SEPPUR.2016.08.010 Corpus ID: 99513865; Separation of copper from nickel in sulfate solutions by mechanochemical activation with CaCO3 @article{Li2017SeparationOC, title={Separation of copper from nickel in sulfate solutions by mechanochemical activation with CaCO3}, author={Xuewei Li and Zhiwu Lei and Jun Qu and Huimin Hu and Qiwu Zhang}, …
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Separation of Copper/Nickel Alloy I really don't know where to start here, to separate copper and nickel. I have considered distilling out nickel (II) chloride while at the same time decomposing copper (II) chloride to insoluble copper (I), both of which happen at a temperature around 1000°C, but I'm not even sure if this would work at all as I do not know …
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The process consists of partial decopperisation of the bleed stream followed by crystallization of a mixed salt of copper and nickel sulphate, leaching of the mixed salt, removal of iron, solvent extraction for the separation of copper …
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Predictions that increased circulating loads from the column scavengers would improve copper-nickel separation performance were confirmed.IntroductionThe copper-nickel separation circuits at Falconbridge's Strathcona Mill produce a high grade (>30% Cu) copper concentrate most of which is treated at the Falconbridge Kidd Creek smelter near Timmins.
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COPPER NICKEL SEPARATION CHALLENGES AND FLOWSHEET DEVELOPMENT By . Damian Connelly . METS Engineering Group Pty Ltd, Australia . Presenter and Corresponding Author . Damian Connelly . ABSTRACT . The nickel-copper-cobalt sulphide deposits at Lynn Lake were mined continuously between 1954 and 1976 (in that time processing more than 20 million ...
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Separation of copper from nickel in sulfate solutions by mechanochemical activation with CaCO 3 Separation and Purification Technology, Volume 172, 2017, pp. 107-112 Xuewei Li, …, Qiwu Zhang
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OPEN ACCESS Eurasian Journal of Analytical Chemistry ISSN: 1306-3057 2017 12(7):1015-1044 DOI: 10.12973/ejac.2017.00229a The Separation of Copper and Nickel from Ni-Cu Mixed Ore Simulated Leaching Solution Using Electrochemical Methods Razika Djouani School of Metallurgy, Northeastern University, Shenyang 110819, CHINA Qian Xu State Key Laboratory …
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Separation of cobalt, nickel, and copper from synthetic metallic alloy by selective dissolution with aid solutions containing oxidizing agent Miner Process Extr Metall Rev ( 2020 ), pp. 1 - 13, 10.1080/08827508.2020.1858079
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Next, metal ion transport through a flat sheet SILM was investigated with pure water as a receiving phase. Permeation coefficients values of 2.2 × 10 −6 m·s −1 and 8.0 × 10 −6 m·s −1 were obtained with a hydrophobic and a hydrophilic membrane, respectively. The SILM showed selectivity for cobalt over nickel with separation factors as high as 218.
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