Ferric Chloride Leaching Of Copper From Chalcopyrite
Solvometallurgical process for extraction of copper from ...
In sulfate media, the leaching kinetics are generally slow (several months) and the leaching of copper is difficult to be complete, due to the formation of passivation layers on the surface of chalcopyrite, such as solid sulfur and iron precipitate ( jarosite). 1 In chloride media, the leaching rate is faster than that in sulfate media, due ...
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Using ferric chloride as an oxidant, here, we investigated the leaching effect of lownickel matte in a flow field produced by mechanical agitation. The factors affecting a leaching reaction, such as stirring speed, leaching time, lownickel matte particle size, and inert abrasive quartz sand, were studied. Xray diffraction (XRD), Xray fluorescence spectroscopy (XRF), a laser particle size ...
leaching copper chloride
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).
(PDF) Leaching of Chalcopyrite in Acidified Nitrate Using ...
The copper extraction achieved in seawater systems were higher than in water systems under the same leaching conditions (increased by an average of 18 wt %). This effect can be attributable to the contribution of chloride that increases proton (H+ ) activity. Keywords: nitrate; chalcopyrite; chloride; leaching; seawater 1.
Leaching of chalcopyrite concentrate with ferric chloride
The leaching of natural chalcopyrite was studied in both ferric chloride and ferric sulfate solutions. The morphology of leaching was studied by using a single chalcopyrite crystal and it appeared ...
copper heap leaching plant manufacturers
In addition, the Dexing Copper Mine in Jiangxi Province heap leaching plant, under the condition of more than 90% of primary chalcopyrite and containing copper waste rock grade %, effectively realized the bacterial leaching of copper extraction.
Copper Leaching From Chalcopyrite Concentrate in Cu (II ...
A high calcium chloride concentration (110–165 g/L) was used to mainChloride leaching Chalcopyrite tain a high cuprous solubility and enhance copper leaching. With 3–4 h of leaching time for each stage, the copper extraction reached 99% or higher while that of iron was around 90%.
investigation of steps of ferric leaching and
An Investigation into the Ferric Leaching of Chalcopyrite ... 2021 1 24·An Investigation into the Ferric Leaching of Chalcopyrite a Sub Process in the Bioleaching of Chalcopyrite by Elizabeth Geethika Jeevaratnam Chemical Dissertation prepared in partial fulfilment of the requirments for the degree of {Eng.) Chemical In the Department of Chemical Engineering University of Cape ...
Leaching of chalcopyrite concentrate in hydrogen peroxide ...
Leaching of chalcopyrite with ferric ion. Part I: General aspects. Hydrometallurgy 93, 81–87. 10. DOLD B., 2005. Basic Concepts of Environmental Geochemistry of Sulfide MineWaste. XXIV Curso Latinoamericano de Metalogenia UNESCO–SEG, Lima, Peru. 11. DUTRIZAC, 1990. Elemental sulfur formation during the ferric chloride leaching of ...
Dissolution kinetics of chalcopyrite in acidic potassium ...
Jan 01, 2006 · Chalcopyrite concentrate enriched through flotation of a CuFeS 2 –PbS–ZnS complex ore in the Menka flotation plant (Sivas, Turkey) was used in this study. Particle size fractions − 212 + 106, − 106 + 75, − 75 + 45, − 45 + 38 and − 38 μm were obtained by wet analysis of copper, iron, zinc and lead of each size fraction was done by AAS (Unicam model 929) and is ...
Ferric Chloride Leaching Of Copper From Chalcopyrite
Copper Leaching From Chalcopyrite Concentrate in Cu (II)Fe. A high calcium chloride concentration (110–165 g/L) was used to mainChloride leaching Chalcopyrite tain a high cuprous solubility and enhance copper leaching. With 3–4 h of leaching time for each stage, the copper extraction reached 99% or higher while that of iron was around 90%.
Chloride Heap Leaching
Jul 09, 2009 · [0003]Chalcopyrite is one of the most refractory copper sulphide minerals in relation to leaching in acidic ferric chloride and ferric sulphate systems at low temperature. This is exemplified by the mineral's slow leaching kinetics, which level off with time.
Chloride heap leaching
The invention claimed is: 1. A hydrometallurgical method of recovering copper from a material, in a heap, that contains a copper sulphide mineral which contains at least chalcopyrite comprising leaching the material in an acidic chloride solution or a mixed chloride/sulphate solution in the presence of dissolved oxygen and maintaining the mineral's surface potential within a range of 550 mV ...
Report of Investigation
Ferric chloridebrine leaching of galena concentrate Price: . ... Effect of nonionic surfactants on chalcopyrite leaching under dump chemical conditions, part 2 ... RI9396 Copper exchange capacity of clays and their potential effect on in situ copper leaching Price: . RI9400 Recovery of manganese from steel plant slag by carbamate ...
Atmospheric stirred tank leaching of chalcopyrite ...
Leaching of primary copper sulfide (chalcopyrite) using ferric as the oxidant at ambient temperature and pressure exhibits slow kinetics and poor leaching efficiency. In collaboration with LeadFX, this project aims at developing an atmospheric tank leaching process for copper extraction from chalcopyrite concentrate with iodine as the alyst. The temperature used will be higher than a ...
Galvanic Effect of Pyrite on Chalcopyrite Leaching in ...
Jan 28, 2014 · The addition of reactions (2) and (4) or reactions (3) and (5) will give the overall leaching reaction (1). Ferric ion is a more effective oxidant of chalcopyrite than oxygen, whereas cupric ion can oxidize chalcopyrite faster than ferric ion (Hirato et al. 1987; O'Malley and Liddell 1987 O'Malley, M. L. and Liddell, K. C., 1987, "Leaching of CuFeS 2 by aqueous FeCl 3, HCl and NaCl ...
