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Copper and Antimony Recovery from Electronic Waste by ...
The electrochemical characterization was the main objective to achieve copper recovery and allowed establishing the parameters for the selective copper electrowinning onto the RCE. The RCE configuration proves to be an efficient technology for metal-ion recovery
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Recovery of copper and silver from industrial e-waste leached
2023.4.27 Recovery of copper and silver from industrial e-waste leached solutions using sustainable liquid membrane technology: a review Review Article Published: 27
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Effective treatment for electronic waste - Selective recovery of
2017.5.20 More specific, one-step selective copper recovery was achieved by combining electrochemical dissolution and deposition in ammonia-based electrolyte. In
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Copper Recovery from Printed Circuit Boards Using
2022.10.15 Copper was recovered directly from the ammonia–ammonium sulphate leaching solutions by electrowinning. An aluminium plate of 8 cm × 2.5 cm was used as
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Development of copper recovery process from flotation tailings by
2018.6.15 An efficient copper recovery process (total copper recovery of 86.2%) is proposed for the utilization of concentrate of flotation tailings as one of the new copper
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Copper recovery from printed circuit boards leaching solution with ...
2023.5.24 Abstract. Recovery of valuable metals via leaching printed circuit boards (PCBs) has gained moment recently. This work studied the Microbial fuel cell (MFC)
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Copper and Antimony Recovery from Electronic Waste by ...
2020.6.6 A process for the successful recovery of copper from e-waste by using both hydrometallurgical and electrochemical techniques was developed. A simple
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Recovery of copper powder from copper concentrates and from
1981.1.1 Recovery and purity of copper Comparison of copper produced from impure copper sulfites by autoclaving or by redissolution and thermal disproportionation
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Optimizing the Leaching Parameters and Studying the Kinetics of
2022.2.2 The study of copper (Cu) recovery is crucial for the entire recovery process of waste printed circuit boards (WPCBs), and Cu can be leached efficiently via a
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The Current State-Of-Art of Copper Removal from
2022.10.1 Copper is one of the chemical elements that is widely used in various sectors nowadays together with the development of civilization especially in agricultural and industrial sectors. Copper is also
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Minerals Free Full-Text Recovery of Copper and Gold from
2023.2.24 This study aimed to recover copper and gold from a waste printed circuit board (WPCB) using monosodium glutamate (MSG) supplemented with a clean oxidizer(s) under 30 °C, 150 rpm, and an initial pH of 7.00. The solder mask of WPCBs needed to be removed before leaching. At the first leaching, 93% of copper was selectively leached
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Copper recovery from spent ammoniacal etching
2003.9.1 Ammoniacal cupric chloride solution is widely used at the chemical etching process in the printed circuit board (PCB) industry to remove a metallic copper portion from the copper clad laminate ...
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Copper Recovery from Aqueous Solutions by Hemp Shives:
2023.1.6 For each dose of this adsorbent, a percentage of recovery between 90 and 100% was achieved, independently of the pH value in the range 3–5. In the case of SHI-W, the highest values were between ...
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The Effective Electrolytic Recovery of Dilute Copper from
2013.1.17 In this work, electrotreatment of a industrial copper wastewater ( [Cu] = 30000 mg L −1) was studied with titanium net coated with a thin layer of RuO 2 /IrO 2 (DSA) reactor. The optimal result for simulated copper solution was 99.9% copper recovery efficiency in current density 0.585 A/dm 2 and no iron ion.
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(PDF) Study of Copper Leaching from Mining Waste in
2020.10.1 approximate recovery of 82% of the Copper in the sample with the 0.20 molar solution of Sulphuric Acid. It is therefore a good result of copper extraction given the material it comes from (mining ...
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Copper Recovery from Aqueous Solutions by Hemp Shives
2022.12.2 This article describes the performance of hemp shives, a co-product of the hemp industry, when used as an adsorbent to recover copper present in aqueous solutions by a batch method. Two materials provided by an industrial partner, namely water-washed hemp shives (SHI-W) and Na2CO3-activated shives (SHI-C), were studied. Two
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Enhancing the effectiveness of copper and cyanide recovery in
2021.6.1 Furthermore, cyanide recovery is influenced by copper in the cyanide solution due to the formation of CuCN in the membrane surface, limiting the transfer area (Estay et al., 2013). Therefore, the development of a membrane-based process to clarify copper precipitates, recovering and concentrating cyanide must consider the presence
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Development of Copper Recovery Process from Flotation
2018.3.1 The extraction of Cu from mixed-metal acidic solutions by the thiourea-functionalized resin Puromet MTS9140 was studied. Despite being originally manufactured for precious metal recovery, a high ...
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Copper and Antimony Recovery from Electronic Waste by ...
2020.6.6 The focus is on copper recovery as the main ... to Cu(0) at potentials between −0.25 and −0.5 V versus SCE. In addition, the synthetic copper solution, red line, presents two oxidation ... , In and Sn from waste electric and electronic equipment through secondary copper smelting. Waste Manag. 2018, 71, 400–410. 10. ...
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Leaching kinetics and predictive models for elements
2021.5.7 The results of experimental investigation on the study of leaching kinetics of copper oxide ore in sulphuric acid solution were discussed. ... Copper recovery of 81.25% was reached a t pH.
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Recovery of copper from printed circuit boards scraps by
2006.10.11 The copper content in solution decayed quickly in all the experiments and the copper obtained by electrowinning is above 98% in most of the tests. Introduction The amount of electro-electronics equipments produced nowadays is very high, and it has been constantly increased due to the short lifetime of this equipments [1].
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E-wastes derived sustainable Cu recovery using solvent extraction
2022.11.1 In order for copper to function as a catalytic agent, the concentration of thiosulfate must be controlled by maintaining the proper concentration ratio of ammonia to thiosulfate in the solution. % Ag and Au recovery increased with increase with Cu conc. up to 30 mM due to the formation of copper (II)-amine complexes (Cu (NH 3) 4 2+).
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Copper recovery from leach solution of waste printed circuit
2023.2.1 The copper recovery from waste printed circuit boards is of great significance to protect natural resource and environment. Direct current electrodeposition has been applied to extract metal from hydrometallurgical leach solutions. However, during the direct current electrodeposition process, concentration polarization and hydrogen
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Chemical Composition Data of the Main Stages of Copper ... - MDPI
2022.2.16 The mining industry has faced significant challenges to maintaining copper production technically, economically, and environmentally viable. Some of the major limitations that must be overcome in the coming years are the copper ore grade decline due to its intense exploitation, the increasing requirements for environmental protection, and
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Copper, zinc, and nickel recovery from printed circuit boards
2021.4.16 This study focuses on the copper, zinc, and nickel recoveries from connection pins and microchips using ammonia–ammonium sulphate leaching solutions. Factors that influence recovery as the stirring rate, L/S ratio, amount of ammonia and ammonium sulphate, and the type of oxidant were assessed.
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Recovery of residual copper from low-content tailings derived
2015.10.10 Section snippets Materials. The samples used during the tests originated from the tailings of a recycling plant dealing with the recovery of copper from electrical cables, after comminution to less than 4–5 mm and subsequent air-separation of copper wires from the polymeric fraction.. The test material was composed of irregular-shaped
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Leaching copper from shredded particles of waste ... - ScienceDirect
2011.3.15 Leaching copper from shredded particles of waste printed circuit boards (PCBs) was carried out in sulfuric acid solution using hydrogen peroxide as an oxidant at room temperature. The influence of system variables on copper recovery by leaching was investigated, such as sulfuric concentration, amount of hydrogen peroxide addition,
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Study of Factors Affecting the Copper Ore Leaching Process - MDPI
2023.6.9 This paper provides an overview of hydrometallurgical copper extraction studies in which liquid extraction technology has been used with four copper deposits of different compositions. The sulfuric acid consumption rate and copper extraction efficiency, which are dependent on the initial content and forms of calcium compounds and other
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Optimization of nanofiltration for treatment of acid mine
2020.8.1 The high levels of metals and sulfate ions in acid mine drainage (AMD) constitutes a severe risk to the environment. Our study evaluated at pilot-scale the operational conditions of actual AMD nanofiltration (NF) to recover water and subsequent recovery of copper from the concentrated retentate solution by a solvent extraction
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