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Ferric Chloride Leaching Of Copper From Chalcopyrite

  • Copper leaching from chalcopyrite concentrate in

    Copper leaching from chalcopyrite concentrate in ferric and cupric chloride system was investigated using a two-stage countercurrent leach circuit under a nitrogen atmosphere at 97 °C to minimize the concentrations of cupric and ferric ions in pregnant leach solution for subsequent copper solvent extraction while maintaining a maximum copper

  • Cited by: 22
  • Ferric chloride leaching of chalcopyrite: Synergetic

    Furthermore, chalcopyrite leaching in cupric chloride is faster than leaching with ferric chloride at equal concentrations of both (Parker et al., 1981, Hirato et al., 1987). Download : Download full-size image; Fig. 8. Mass transfer of reactants and products of chalcopyrite leaching in ferric chloride

  • Cited by: 61
  • Chloride leaching of chalcopyrite ScienceDirect

    Chloride leaching with copper shown in Fig. 1, Fig. 2, were developed featuring chloride leaching of chalcopyrite combined with solvent extraction and conventional sulfate electrowinning to address the issue of recovering a pure product. They differ, however, Fisher N.Countercurrent leaching of chalcopyrite in cupric/ferric chloride media.

  • Cited by: 56
  • Ferric chloride leaching of chalcopyrite: Synergetic

    The effects of stirring speed and temperature were investigated. It was found that agitation had a negative effect on copper recovery from chalcopyrite during the leaching process. This is explained by the fact that cupric chloride complexes are formed during the leaching process where cupric ion is considered as a stronger oxidant than ferric ion.

  • Cited by: 61
  • Ferric chloride leaching of sulphidized chalcopyrite

    Previous work [8--12] with leachants other than ferric chloride has shown that copper leaching rates and selectivity for copper extraction over iron can be increased by preheating chalcopyrite with sulphur giving products iden- tified as mixtures of pyrite and covellite, and/or idaite, and/or bornite depend- ing on the temperature, reaction time and concentrate to sulphur ratio.

  • Cited by: 15
  • Ferric chloride leaching of chalcopyrite: Synergetic

    This work presents a study of the leaching of chalcopyrite in acidic ferric chloride. Two chalcopyrite samples (natural chalcopyrite crystal and chalcopyrite concentrate) were leached under different conditions. The effects of stirring speed and temperature were investigated.

  • Cupric Chloride Leaching of Chalcopyrite

    11-12-2014· Cupric Chloride Leaching of Chalcopyrite. Authors; J. Avraamides, “The Leaching of Copper from Sulphur Activated Chalcopyrite with Cupric Sulfate in Nitrile-Water Mixtures,” Hydrometallurgy 1 (1975) p. 169–181. CrossRef Google Scholar. 23. D.L. Jones and E. Peters, “The Leaching of Chalcopyrite with Ferric Sulphate and Ferric

  • Cited by: 32
  • The leaching of chalcopyrite with ferric chloride

    A comparative study of electrochemical leaching and chemical leaching of chalcopyrite was done to elucidate the leaching mechanism of chalcopyrite with FeCl 3. The leaching rate of chalcopyrite exhibits a half order dependency on the FeCl 3 concentration, whereas it is

  • Cited by: 95
  • The leaching of chalcopyrite with ferric sulfate

    The leaching kinetics of natural chalcopyrite crystals with ferric sulfate was studied. The morphology of the leached chalcopyrite and the electrochemical properties of chalcopyrite electrodes also were investigated. The leaching of chalcopyrite showed parabolic-like

  • Cited by: 109
  • Copper leaching from chalcopyrite concentrates

    Chalcopyrite (CuFeS 2) is one of the most abundant copper-bearing minerals, which accounts for approximately 70 percent of the world’s known copper reserves. For more than 30 years, a significant number of processes have been developed to leach copper from chalcopyrite concentrates.

  • Cited by: 128
  • Copper leaching from chalcopyrite concentrates

    Chalcopyrite (CuFeS 2) is one of the most abundant copper-bearing minerals, which accounts for approximately 70 percent of the world’s known copper reserves. For more than 30 years, a significant number of processes have been developed to leach copper from chalcopyrite concentrates.

  • Improvements in Ferric Chloride Leaching of

    28-3-2018· A method to recover copper and elemental sulfur from chalcopyrite concentrate, using a ferric chloride leach, cufes2 + 3fecl3 -> cucl + 4fecl2 + 2s, was reported by the federal Bureau of Mines in 1971 (report of investigations 7474). Additional work has been done to improve the recovery of sulfur

  • Leaching of chalcopyrite concentrate with ferric

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  • The role of sodium chloride on surface properties of

    The role of sodium chloride on surface properties of chalcopyrite leached with ferric sulphate M.F.C. Carneiro, V.A. Leão ⁎ Núcleo de Valorização de Materiais Minerais, Department of Metallurgical and Materials Engineering, Universidade Federal de Ouro Preto,

  • ferric chloride leaching of copper from

    Ferric Chloride Leaching Of Copper From Chalcopyrite. The leaching of chalcopyrite with ferric chloride The Leaching of Chalcopyrite with Ferric Chloride TETSUJI HIRATO, MAKOTO KINOSHITA, YASUHIRO AWAKURA, and,Chat Online; Simultaneous Extraction of Copper and Iron from ,

  • Chalcopyrite Leaching in Acidic Chloride Solution without

    Abstract: Chalcopyrite leaching in acidic chloride solution with-out sulphates. The effect of dissolved oxygen and ferrous/ferric/cu-pric ions in solution on the leaching behavior of chalcopyrite and the phenomenology of the passivating layer formation on the chalcopyrite surface in an aqueous acidic chlorinated medium with dissolved oxy-

  • Leaching of chalcopyrite in cupric chloride

    During the leaching of chalcopyrite in cupric chloride solutions, a reaction product layer forms on the mineral surface. In the present work, the formation and the composition of the reaction product layer on solid stationary chalcopyrite was studied in a chemical

  • Ferric Chloride Leaching

    Extractions of copper, zinc, and silver were higher than those obtained in bench-scale research, in which better control of leaching time was possible. Ferric chloride leaching can be made selective, and more than 99 pct lead extraction can be obtained in 15 min. Additional leaching time increases solubilization of chalcopyrite and sphalerite.

  • Chloride leaching of chalcopyrite Request PDF

    Copper leaching from chalcopyrite concentrate in ferric and cupric chloride system was investigated using a two-stage countercurrent leach circuit under a nitrogen atmosphere at 97 degrees C to minimize the concentrations of cupric and ferric ions in pregnant leach solution for subsequent copper solvent extraction while maintaining a maximum copper extraction.

  • Electrogenerative leaching of chalcopyrite with

    Download Citation Electrogenerative leaching of chalcopyrite with ferric chloride In order to expand the applying field of electrogenerative leaching, in this work the electro-generate technique will be applied to the leaching Find, read and cite all the research you need on ResearchGate

  • Ferric Chloride Leaching

    Extractions of copper, zinc, and silver were higher than those obtained in bench-scale research, in which better control of leaching time was possible. Ferric chloride leaching can be made selective, and more than 99 pct lead extraction can be obtained in 15 min. Additional leaching time increases solubilization of chalcopyrite and sphalerite.

  • Chloride leaching for chalcopyrite UBC Library

    Two new process flowsheets have been developed which combine chloride leaching for chalcopyrite with solvent extraction, to selectively transfer copper to a conventional sulfate electrowinning circuit. Both models were designed to address the common chloride hydromet problem of product impurity, and they differ with respect to iron deportment.

  • (PDF) Leaching of chalcopyrite in cupric chloride

    Although the literature contains many references to ferric and cupric chloride leaching of chalcopyrite concentrates [37], of which the studies by Dutrizac [75,76], Majima et al. [77], and Holdich and Broadbent [78] are of interest, none of the processes really overcame the difficulties associated with precious metals recovery, electrowinning

  • Cu Leaching Using Regenerated Ferric Sulphate

    LEACHING OF SECONDARY COPPER MINERALS USING . REGENERATED FERRIC SULPHATE. C.J. FERRON — SGS. ABSTRACT . Secondary copper minerals such as chalcocite (Cu. 2. S) and covellite (CuS) are known to dissolve in acidic ferric sulphate solutions. However, the quantities of ferric sulphate required to achieve acceptable recoveries for

  • Optimization of ferric chloride leaching

    Title : Optimization of ferric chloride leaching parameters of copper extraction from chalcopyrite concentrate using Taguchi method Abstract: Taguchi (L16) experimental design (DOE) was used to optimize the extraction process of copper from chalcopyrite concentrate statistically.

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  • Optimization of selective copper extraction from

    The dissolution of copper and iron from chalcopyrite concentrate in the presence of ammonium persulfate (APS) Ferric chloride leaching of chalcopyrite: Synergetic effect of CuCl 2, Hydrometallurgy, 91(2008), No. 1–4, p. 89. CrossRef Google Scholar [4]

  • Chalcopyrite concentrating mill Ketel Service

    ferric chloride leaching of copper from chalcopyrite. chalcopyrite concentrating mill cierpiktransporteu Leaching kinetics of copper from chalcopyrite concentrate in nitrous-sulfuric acid 403 samples,,ACIDIFIED FERRIC CHLORIDE LEACHING OF A CHALCOPYRITE . Mining Crushing And Grinding Of Copper From Chalcopyrite

  • Chalcopyrite Leaching Metallurgist & Mineral

    Leaching Chalcopyrite is the holy grail for hydrometallurgists (Leachers), difficult to leach as the sulfur forms a layer over the mineral and makes the leaching slow. Having said that, it is not 100% not leachable, not unusual for ore dumps (low grade) containing chalcopyrite to be placed under leach but report low recovery +/-30% TCu over

  • A Review on Novel Techniques for Chalcopyrite Ore Processing

    : A Review on Novel Techniques for Chalcopyrite Ore Processing . predomin ant copper mineral. Hydrometallurgical methods are used in countries having readily available deposits with low copper content with sulphur of oxidized form at the same time (USA, Chile, Australia and Peru) (Majima et al. 1985). Hydrometallurgical processing of chalcopyrite