copper concentrate leaching process

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copper concentrate leaching process

copper concentrate leaching process

copper concentrate leaching process

Outotec copper concentrate pressure leaching process

2020-6-16  The Copper Pressure Oxidation Plant is an Outotec proprietary technology for impure concentrate refining. The new process offers an effective way to dissolve concentrate, remove impurities, and recover copper as LME A-grade cathodes. In addition, the flowsheet can be modified to recover silver and gold. It is an easy-to-operate, self-optimizing

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Leaching process for copper concentrates The University

The invention pertains to methods for leaching copper from copper sulphide-containing concentrates. More particularly it pertains to a hydrometallurgical process for the extraction of copper from a copper sulphide-containing concentrate, including mixed sulphide concentrates, in particular from concentrates containing chalcopyrite (CuFeS 2).

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LEACHING OF COPPER CONCENTRATES

2020-4-2  copper oxides have been in common use for some time. Prior to the development of the Sherritt-Gordon process for nickel and cobalt in which copper is recovered as high grade copper sulfide, copper sulfides were economically recovered in a hydrometallurgical process only during the leaching of waste dumps. . Need for Hydrometallurgical Processes

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US7846233B2 Leaching process for copper concentrates

A method of leaching copper from copper sulphide-containing concentrates, such as chalcopyrite, includes using pyrite as a catalyst for ferric reduction in order to eliminate passivation of the chalcopyrite surface, the process being carried out under conditions whereby the pyrite is not materially oxidized, for example by maintaining the operating solution potential at a suitable level.

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US20120279357A1 Leaching process for copper

A method of recovering copper from a copper sulfide concentrate comprising a copper arsenic sulfosalt or a copper antimony sulfosalt, using carbon as a catalyst. The concentrate and carbon are added to an acidic sulfate leach solution. The copper is leached from the concentrate, in the presence of an oxygen-containing gas. The operating potential is maintained above a selected level.

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Pressure Leaching of Copper Concentrates

2020-8-20  2 October 25th, 2004 Presentation Outline Safety share Introduction Global copper reserves/resources Phelps Dodge production & reserves profile Commercial drivers for copper concentrate leaching The copper concentrate market and TC/RCs Phelps Dodge copper pressure leaching developments High temperature Medium temperature Critical success factors for

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Copper leaching from chalcopyrite concentrates

Chalcopyrite (CuFeS2) 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. These processes recover copper via hydrometallurgical leaching of the copper component of chalcopyrite

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First Chalcopyrite Copper Concentrate Leaching using

2018-7-20  First Refractory Copper Leaching Using Albion ProcessTM o Sable received a parcel of sulphide copper concentrate containing approximately: 30% Copper (predominantly Chalcopyrite, Bornite and lesser amounts of Chalcocite) 19% Total Sulphur 14% Iron o Being originally designed as whole ore leach tanks, their sizing was excessive compared to the

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(PDF) Recovering gold from copper concentrate via the

leaching of copper concentrate, the regeneration of chemicals, HydroCopper TM is a novel process for leaching copper from chalcopyrite using cupric chloride solution. The dissolution rate of

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US7846233B2 Leaching process for copper concentrates

A method of leaching copper from copper sulphide-containing concentrates, such as chalcopyrite, includes using pyrite as a catalyst for ferric reduction in order to eliminate passivation of the chalcopyrite surface, the process being carried out under conditions whereby the pyrite is not materially oxidized, for example by maintaining the operating solution potential at a suitable level.

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Copper Chloride Leaching Process TON Outotec

The Copper Chloride Leaching Process consists of the following main steps: Concentrate repulp. Atmospheric chloride leaching. Leaching residue thickening, filtration, wash, and stabilization. Copper solvent extraction (conversion from chloride to sulfate) Silver recovery from raffinate. Copper

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First Chalcopyrite Copper Concentrate Leaching using

2018-7-20  First Refractory Copper Leaching Using Albion ProcessTM o Sable received a parcel of sulphide copper concentrate containing approximately: 30% Copper (predominantly Chalcopyrite, Bornite and lesser amounts of Chalcocite) 19% Total Sulphur 14% Iron o Being originally designed as whole ore leach tanks, their sizing was excessive compared to the

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Big Guns in Copper Conc Leaching Race

2014-11-13  applying bio-technology for copper and molybdenum ores and concentrates. The first project is a US$60 million prototype bio-leaching facility near Chuquicamata, Chile to treat 77,200 t/a concentrate and produce 20,000 tonnes/annum of cathode copper, with a view to building a commercial facility for the nearby Mansa Mina Project.

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The selective leaching of copper from a gold–copper

2020-12-11  gold leaching either using the same process at elevated temperature (40–60 °C), as patented by the authors, or using a cyanidation process. Copper selective leaching will reduce the gold losses due to a cementa-tion mechanism of gold in the presence of metallic copper as all of the metallic copper will dissolve in the pre-leaching stage.

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Leaching of Copper Sulphides SAIMM

2016-6-8  oxidation, ferric sulphate leaching and copper chloride leaching. The effect of mineralogy on the choice of processing technology is discussed as well as some of the unit processes used. Additionally, possible benefits that a hydrometallurgical process may offer over an existing pyrometallurgical route are discussed.

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Recovery of Copper from Copper Sulfide Concentrate by

2015-2-16  2.2.1. Sulfation Roasting-Leaching Process The sulfation roasting-leaching experiments were carried out at a laboratory scale(2 g). The addition of Na 2SO 3 and copper sulfide concentrate were mixed well in a mortaragate,followed by roasting in a muffle electric fur-nace. The roasted sample was then cooled to room temperature and leached with

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PRESSURE LEACHING RPMGlobal

2020-1-22  Sunshine Mine process plant at Kellogg, Idaho (1980), but copper concentrate leaching was advanced to larger scales with the commissioning of the Bagdad, Arizona, concentrate leach plant (2003) and then the Morenci, Arizona, concentrate leach plant (2006). Copper concentrate leaching has been driven by two principal opportunities:

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Copper Concentrates Cargo Handbook the world's

2021-10-31  Copper concentrate is smelted and converted to metallic copper, which allows it to attain forms that can be submitted to further refining, more than 99% pure, as in copper anode and copper blister. The main application of copper anode is to use it as raw material in the process of electrolytic refining, to produce the electrolytic refined

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Acid Leaching Copper Ore Treatment Method

2017-5-23  Acid Leaching Copper Ore Treatment Method. The treatment of copper ores, both oxides and sulfides by means of flotation, hydrometallurgy or other processes has been well established for many years. Flotation has been applied generally to the

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Bioprocess for Leaching of Copper Concentrate

The acid leaching under batch conditions at 50°C and pH 1.2 during 22 hours led to 40.6% of copper recovery from the concentrate. Subsequent ferric leaching of the acid leach residue at 80°C, pulp density 9%, initial concentration of Fe3+ 30.7 g/L, and pH 1.2–1.3 during 7 hours increased the total copper recovery to 94.5%.

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Copper Concentrate Leaching Developments by Phelps

2003-8-1  R. E. Brewer, Copper concentrate pressure leaching — plant scale-up from continuous laboratory testing, Mining, Metallurgy & Exploration, 10.1007/BF03403186, 21, 4, (202-208), (2004). Crossref Electrometallurgy and Environmental Hydrometallurgy, Volume 2

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LEACHING KINETICS OF COPPER FROM CHALCOPYRITE

2013-9-7  Leaching kinetics of copper from chalcopyrite concentrate in nitrous-sulfuric acid 403 samples, determined from measurements on an HORIBA/Partica LA-950V2 Particle Size Analyzer, was 35 μm. Ultrafine milling of the as-received material to 15 μm was performed using a ball mill. The size of the product was confirmed by particle size analysis.

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Recovering Gold from Copper Concentrate via the

2016-9-29  58 JOM • August 2004 HYDROCOPPER PROCESS The HydroCopperTM process3 can be divided into three main stages (Figure A): the leaching of copper concentrate, the regeneration of chemicals, and the production of copper semi-products.4,5 Copper concentrate is leached into a CuCl

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(PDF) Recovering gold from copper concentrate via the

leaching of copper concentrate, the regeneration of chemicals, HydroCopper TM is a novel process for leaching copper from chalcopyrite using cupric chloride solution. The dissolution rate of

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Leaching Process Chemistry of Extracting Substances via

2021-10-20  Heap leaching, a process used to extract copper, uranium, and some precious metals from their ores. Another process in which copper and uranium are recovered is via a process called In-Situ Leaching. Tank Leaching and Vat Leaching are processes wherein the ores are placed in large tanks (or vats) which contain leaching solutions. They can be

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Concentrate Treatment Process OZ Minerals

2016-9-22  / Copper concentrate market is 60Mtpa / An average concentrate contains only 25 -28% copper prior to smelting / Concentrates increasingly contain impurities such as arsenic, lead, zinc, bismuth, mercury, uranium and fluorine / Regulators are responding to community concerns about their environment Chinese import limit of 5,000ppm Arsenic

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HYDROCOPPER A NEW METHOD FOR TREATING

2007-1-26  process may be optimized to maximize copper recoveries. OUTOKUMPU HYDROCOPPER® PROCESS DESCRIPTION The HydroCopper® process (figure 1) consists of four steps to produce copper powder; leaching of copper concentrate, solution purification, precipitation of cuprous oxide and reduction to copper powder. Figure 1. HydroCopper® process

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PRESSURE LEACHING RPMGlobal

2020-1-22  Sunshine Mine process plant at Kellogg, Idaho (1980), but copper concentrate leaching was advanced to larger scales with the commissioning of the Bagdad, Arizona, concentrate leach plant (2003) and then the Morenci, Arizona, concentrate leach plant (2006). Copper concentrate leaching has been driven by two principal opportunities:

get price

Copper Concentrates Cargo Handbook the

2021-10-29  Copper concentrate is smelted and converted to metallic copper, which allows it to attain forms that can be submitted to further refining, more than 99% pure, as in copper anode and copper blister. The main application of copper anode is to use it as raw material in the process

get price