article{osti_22304621, title = {Leaching behavior of copper from waste printed circuit boards with Brønsted acidic ionic liquid}, author = {Huang, Jinxiu and Chen, Mengjun, Email: kyling and Chen, Haiyan and Chen, Shu and Sun, Quan}, abstractNote = {Highlights: • A Brønsted acidic ILs was used to leach Cu from WPCBs for the first time.
Get PriceContaminants of postleaching copper solutions and their behavior during extraction… 137 Pregnant leaching solutions (PLS) – feed for copper extraction The composition of the solutions from microbiological leaching of copper concentrate is shown in Table 1. They were used in extractive continuous and countercurrent experiments. Table 1.
Get PriceRESEARCH PAPER Leaching behavior and ecotoxicological effects of different game shot materials in freshwater Julian Fäth1,a, Mona Feiner2,a, Sebastian Beggel2, Jürgen Geist2,* and Axel Göttlein1 1 Technical University of Munich, School of Life Sciences, Professorship of Forest Nutrition and Water Resources, HansCarlvon CarlowitzPlatz 2, 85354 Freising, Germany
Get Priceinvestigate the leaching behavior of metals that are leached from 2 to 4 mm PCBs. Additionally, the extent of copper leaching and the leaching of other metals using sulfuric acid and nitric acid was investigated. Because sulfuric acid was ineffective in leaching the …
Get PriceCopper Oxide Ore Leaching Ability and Cementation Behavior, Mesgaran Deposit in IRAN Shayan Khakmardan1*, Aref Shirazi1, Adel Shirazy2, Hassan Hosseingholi3 1AmirKabir University of Technology (Tehran Polytechnic), Tehran, Iran 2Shahrood University of Technology, Shahrood, I ran 3Sormak Mining Company, Tehran, Iran Abstract
Get PriceCiteScore: ℹ CiteScore: 2018: CiteScore measures the average citations received per document published in this title. CiteScore values are based on citation counts in a given year ( 2015) to documents published in three previous calendar years ( 2012 – 14), divided by the number of documents in these three previous years ( 2012 – 14).
Get PriceJan 01, 2010· Read "Leaching behavior of copper using electrogenerated chlorine in hydrochloric acid solution, Hydrometallurgy" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Get Priceleaching of copper and cobalt ores. Thereafter, plant trials have been conducted at Shituru. Interesting results have been achieved and it has been demonstrated that sulphur dioxide represents an economical alternative as reducing agent, which can replace both Na2S2O5 and copper powder.
Get Priceecological behaviour, leadcontaining copper matte, oxidation roasting, indium, acid leaching, extraction Liu D, Fan X, Shi Y, Yang K (2018) Leaching Ecological Behavior of Indium from LeadContaining Copper Matte Using Oxidation Roasting Leaching Process. Ekoloji 27(106): 667676.
Get PriceKim et al. [14] studied the leaching behavior of copper using electrogenerated chlorine in hydrochloric acid solution and behavior of cuprous ions during the electroleaching of copper. Kumar et al. [15] carried out solvent extraction studies for the removal of hazardous metals from the sulfate leach solution of electronic wastes. Chien et al ...
Get PriceThe authors investigated the behavior of the same extractants during extraction of copper(II) from ammoniacal leach solutions containing around 45 g Cu/dm3. They also chose LIX 84I as the best extractant based on a few criteria: good stability of reagent, no propensity towards emulsion formation,
Get PriceIn addition, numerous studies showed that leaching of chalcopyrite in chloride media results in higher copper extractions than in sulfate media [16,23,24]. The main reasons are the formation of chloride complexes, which change the electrochemical behavior of chalcopyrite passivation and/or the higher porosity of the mineral surface [8,16,25].
Get PriceSilver and the remaining part of copper is possible to be leached from the residue of the first leaching step with HNO. 3. Although the practical procedure should be composed of two consecutive leaching steps in the above order, the behavior of the anode slime obtained from the SnCuAg anodes enriched in copper was examined directly
Get Pricefrom the dissociation of the complex is used to leach gold from the ore. The stepwise dissociation of cyanide from coppercyanide complexes can also be used to leach gold from a variety of oxide and sulphide ores. The copper cyanide's fourth ligand readily dissociates at low cyanide concentrations for use in gold leaching.
Get PricePresentation of the copper behavior 82 The gold leaching behavior 92 Gold head grade 95 The pH variation 97 Free cyanide concentration in the effluent solution 103 Thiocyanate in the effluent solution 110 The iron behavior 116 Conclusions 120 5 Experimental results and discussions phase III 122
Get PriceLeaching Behavior of Copper (II) in a Soil Column Experiment Article in Bulletin of Environmental Contamination and Toxicology 75(5):102833 · December 2005 with 6 Reads How we measure 'reads'
Get PriceCopper Leaching Behavior from Waste Printed Circuit Board in Ammoniacal Alkaline Solution Kazuya Koyama 1, Mikiya Tanaka and Jaechun Lee2 1Metals Recycling Group, Research Institute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 3058569, Japan
Get PriceLeaching Behavior of Copper, Zinc and Lead from Contaminated Soil with Citric Acid Hongki Park 1,+1, Kyungbae Jung , Richard Diaz Alorro 2and Kyoungkeun Yoo 1Department of Energy and Resources Engineering, Korea Maritime University, Taejongro 727, Yeongdogu, Busan, 606791, Korea
Get PriceThe leaching behavior of an Iranian copper oxide ore in sulphuric acid was investigated in detail to evaluate the in uence of various factors, to optimize the dissolution conditions, and to determine the kinetics of the leaching. The results indicated that the increase in the leaching time and temperature enhanced the leaching rate of copper.
Get Price192 8 Microbial Leaching of Metals 1 Introduction Future sustainable development requires measures to reduce the dependence on nonrenewable raw materials and the demand for primary resources. New resources for metals must be developed with the aid of novel technologies. in addition, improvement of alredy existing mining techniques can result ...
Get PriceThe leaching behavior of an Iranian copper oxide ore in sulphuric acid was investigated in detail to evaluate the in uence of various factors, to optimize the dissolution conditions, and to determine the kinetics of the leaching. The results indicated that the increase in the leaching time and temperature enhanced the leaching rate of copper.
Get PriceThe leaching behavior of copper from natural chalcocite (Cu 2 S) particles in alkaline Na 4 EDTA solutions containing oxygen was examined at atmospheric pressure. The EDTA leaching process took place with consecutive reactions, where the solid product of the first reaction, covellite (CuS), became the reactant for the second.
Get PriceIn elucidating the influence of copper minerals on cyanide leaching of gold, copper minerals were classified into two types according to their solubility in cyanide solutions by proposing two concepts, cyaniding easily soluble copper (E Cu) and cyaniding insoluble copper. The former involves copper occurrence in metal, oxides and secondary ...
Get PriceThe leaching behavior of metallic copper has been investigated using chlorine electrogenerated at the anode in mol/L HCl solution. An electrochemical reactor divided into two compartments by an anion exchange membrane was employed for these experiments.
Get PriceMicrobial Leaching of Uranium Ore Hadi Hamidian Islamic Azad University, Qaemshahr Branch Iran 1. Introduction This chapter is a review of the microbiological leaching of uranium ores. Microbiological leaching has been use as an alternative approach to conventional hydrometallurgical methods of uranium's extraction.
Get PriceUNDERSTANDING ACID CONSUMPTION AND ITS RELATIONSHIP WITH COPPER RECOVERY M. L. Free, Univ. of Utah, Salt Lake City, UT ABSTRACT Acid consumption in copper heap leaching is determined by the minerals present in the ore. Gangue minerals such as biotite and chlorite consume acid together with copperbearing minerals such as chrysocolla and malachite.
Get PriceIn this study, adsorption and leaching behavior of Cu2+, Zn2+ and Pb2+ ions by River Nile sediment from the water were investigated to achieve the pollution load of these metals from the different input sources to the River Nile water. To achieve optimum conditions for adsorption and leaching
Get PriceMalachite ore is one of the most important of oxidized copper ores. Copper production can be performed by using this ore. In this work, the leaching kinetics of malachite in ammonium sulfate solutions was investigated, and metallic copper was recovered by a cementation method from the resulting actual leach solution. Copper (II) oxide was prepared by an isothermal oxidation method from the ...
Get PriceJul 15, 2019· The objectives of this study were to (1) investigate the metal leaching behavior from commonly used fly ashes and slag in geotechnical purposes, (2) assess the effects of fly ash, slag and cement contents on the leaching characteristics, (3) examine the influence of pH on the leaching behavior, and (4) identify the mechanisms controlling the ...
Get PriceAbstract. The leaching behavior of copper from natural chalcocite (Cu 2 S) particles in alkaline Na 4 EDTA solutions containing oxygen was examined at atmospheric pressure. The EDTA leaching process took place with consecutive reactions, where the solid product of the first reaction, covellite (CuS), became the reactant for the second.
Get Priceexception of chrysocola, leaching behavior of copperbearing minerals under ferriciron/sulfuric acid leaching is generally closely modelled by dissolution with sodium cyanide of assaytype samples. Primary sulfide minerals, such as chalcopyrite, are essentially unleachable under
Get PriceThis study aims to investigate the leaching behavior and filtration performance of zinc refinery residue under hydrothermal conditions. The relationships between the structure and morphology of silicon in the leaching residue and the pulp filtration performance were explored by determining the pulp filtration speed, analyzing quantitatively the silicon content in the leachate, and ...
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