Originated in 1987, Shibang Group has obtained a number of technical inventions and authorizations for crushers and pulverizers through continuous efforts. The crushing and grinding equipment developed and produced are exported to more than 170 countries and regions around the world, and it is more than 8,000 investors.
The method used to extract copper from its ores depends on the nature of the ore. Sulphide ores such as chalcopyrite are converted to copper by a different method from silicate, carbonate or sulphate ores. Getting copper from chalcopyrite, CuFeS 2. Chalcopyrite (also known as copper pyrites) and similar sulphide ores are the commonest ores of copper. Get Price
Jan 01, 2019Chalcopyrite flotation concentrate was received from an operating copper mine in Southern Arizona. The elemental composition of the concentrate was analyzed using acid digestion followed by solution analysis for different metals using inductively coupled plasma optical emission spectrometry (ICP-OES) ().X-ray diffraction showed that the concentrate consisted of 89.5% chalcopyrite Get Price
A gaseous chlorination process for hydrometallurgical treatment of a chalcopyrite concentrate was investigated. The overall process is visualized to consist of low temperature chlorination-selective oxidation, followed by aqueous chloride leaching and SX-EW for producing electrolytic copper Get Price
The copper extraction within 96 h was observed from 13 to 14% with glycine concentrations from 0.5 to 2 M, while the copper extraction decreased at 3 M of glycine. By reconstituting the glycine concentration during the leach test and adding hydrogen peroxide periodically, the copper extraction with 1 M glycine at 96 h increased from 14 to 21% Get Price
Stage 3: Roasting At this stage of the process, the chemical reactions begin. They convert the copper minerals into copper metal. We can illustrate the types of process using the example of chalcopyrite – CuFeS 2.From the formula, it is clear that iron and sulfur have to be removed in order to produce copper. Get Price
An investigation on copper leaching from a chalcopyrite concentrate in methanesulfonic acid (MSA) and hydrogen peroxide at 75C was carried out. Periodic additions of H 2 O 2 were applied to enhance chalcopyrite dissolution and the reaction mechanism was analyzed using a Get Price
Minerals 2018, 8, 1 3 of 14 2. Materials and Methods 2.1. Ore An industrial copper sulfide ore from the Antofagasta Region, Chile was used. The ore was crushed and milled to obtain a particle size below 150 m, with a P80 of 94.01 m, which was determined with a Microtrac S3500 particle size analyzer (Microtrac Inc., Montgomeryville, PA, USA). Get Price
production of copper and provides about 11 pct of the total copper recovered in the United States (13).3 Chalcopyritic ores comprise the largest portion of these low-grade ores and are the most difficult to leach. Modern dump leaching of chalcopyrite is slow and inefficient, and much of the copper remains in the Get Price
The best selective recovery of copper (99 at%) from chalcopyrite was obtained with a mixed DES of 20 wt% choline chloride-oxalic acid and 80 wt% choline chloride-ethylene glycol. This demonstrates how design of the Deep Eutectic Solvents can enable increased selectivity of copper over iron in the electrowinning stage by changing solute Get Price
Chalcopyrite is a striking, bright yellow, metallic mineral that occurs in nearly all sulfide deposits. Initially, it may be easy to confuse chalcopyrite, or copper pyrite (CuFeS 2), with pyrite (FeS 2), but the two can be distinguished by their relative hardness and chalcopyrite's iridescent tarnish. Pyrite is the harder of the two and Get Price
The principal ore of copper is copper pyrite and copper is extracted from this ore. The different steps in extraction of copper are: Crushing and Concentration: The ore obtained from mines are broken down into small piece by jaw crusher and then pulverized. The ore being sulphide ore is concentrated by froth floatation process. Get Price
Aug 21, 2020Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite ((CuFeS_2)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper. Get Price
Bornite commonly occurs with other copper sulphide minerals such as chalcocite and weathers, or "oxidizes", to malachite. Chalcopyrite is the most common ore mineral for copper. Chalco comes from the Greek word chalko, meaning copper. Chalcopyrite is commonly found in sulphide deposits in most ore-forming environments. Get Price
Chalcopyrite (CuFeS2) is the main source of copper in the world. The development of hydrometallurgical processes to extract copper from chalcopyrite is challenging due to the low leaching kinetics. The main difficulty is in the fact that the kinetics of the leaching process decreases very rapidly, marginally stopping the reaction. A passivation process of the surface Get Price
Jun 26, 2017The search for a commercially viable, hydrometallurgical technology to extract copper from chalcopyrite and enargite has so far been fruitless. Attempts dating back to the 1970s have involved energy-intensive ultra-fine grinding, catalysts, high temperatures and high pressures. While many approaches were technically successful, they were too Get Price
Sep 28, 2010Copper is extracted from the ore, chalcopyrite, CuFeS2. How many kilgrams of 0.862% chalcopyrite ore will be necessary to produce 1.00 kg of pure copper? The percentage of copper in chalcopyrite needs to be known to work this problem. Get Price
'ources of Copper: 'ometimes it can be found in a natural state. %t can also be found in the minerals called cuprite, malachite, a,urite, chalcopyrite and bornite Copper ore deposits are found in the -nited 'tates, Chile, .ambia, .aire, /eru and Canada. The most important copper ore are the sulphides, oides and carbonates. Get Price
After 320 days bioleaching of chalcopyrite concentrate, the copper ion concentration in bioleaching solution was 244.2 mg/L and the average coulomb production was 4.4 2.2C/d. The introduction of MFCs into bioleaching processes promoted copper extraction, mainly via the decrease of pH deriving from the anodic sulfide/sulfur oxidation. Get Price
Ural enrichment plants processing copper-porphyry deposits are produced chalcopyrite concentrates of the following chemical composition, %: 21.5 Cu, 0.1 Zn, 26.59 S, 24.52 Fe, 0.05 Pb, 0.04 Ni, 16.28 SiO2 [1]. According to previous studies [2, 3, 21], such concentrates can be effectively treated using pressure oxidative leaching (POX). At temperature of 190–200 C, Get Price
McCabe - Thiele distribution isotherms showed that at pH 1.7 total and selective copper extraction can be realized with o:a =1.5:1 in 3 extraction stages. Stripping of the loaded copper by treating the organic phases was easily obtained by a sulphuric acid solution. Keywords. Chalcopyrite Get Price
McCabe - Thiele distribution isotherms showed that at pH 1.7 total and selective copper extraction can be realized with o:a =1.5:1 in 3 extraction stages. Stripping of the loaded copper by treating the organic phases was easily obtained by a sulphuric acid solution. Keywords. Chalcopyrite Get Price
An investigation on copper leaching from a chalcopyrite concentrate in methanesulfonic acid (MSA) and hydrogen peroxide at 75C was carried out. Periodic additions of H 2 O 2 were applied to enhance chalcopyrite dissolution and the reaction mechanism was analyzed using a Get Price
Feb 01, 2021EKSTEEN J, ORABY E, TANDA B. A conceptual process for copper extraction from chalcopyrite in alkaline glycinate solutions [J]. Minerals Engineering, 2017, 108: 53ˆ'66. [4] TANDA B, ORABY E, EKSTEEN J. Recovery of copper from alkaline glycine leach solution using solvent extraction [J]. Separation and Purification Technology, 2017, 187 Get Price
In the case of copper, it is worth extracting when there is about 2 kg of copper per 1,000 kg of ore (0.2%). Copper minerals are found in over one hundred varieties, although only a few have been worked for copper on a large scale. The most abundant ores are chalcopyrite and bornite, which contain both copper and iron sulphides. Get Price
The leaching of copper from industrial copper ore with 4.8 wt % chalcopyrite by acidified nitrate with seawater based media was investigated. Water quality (pure water and seawater), temperature (25–70 C), reagent concentration, and nitrate type (sodium and potassium) were studied variables. Leaching conditions were: 100 g ore/1 L solution; P80 of 62.5 micro;m; Get Price
Sulfate-based leaching processes for chalcopyrite (CuFeSa) are attractive because of their inherent simplicity. Unfortunately, high copper extractions are not attainable in a reasonable residence time unless the leaching temperature exceeds 200C (oxygen pressure leaching) or chalcopyrite is activated by a pretreatment method prior to leaching. In the present work, Get Price
Minerals 2018, 8, 1 3 of 14 2. Materials and Methods 2.1. Ore An industrial copper sulfide ore from the Antofagasta Region, Chile was used. The ore was crushed and milled to obtain a particle size below 150 m, with a P80 of 94.01 m, which was determined with a Microtrac S3500 particle size analyzer (Microtrac Inc., Montgomeryville, PA, USA). Get Price
Shibang Industrial Technology Group Co., Ltd., as a leader in the global crushing and milling industry, has always adhered to technology and quality, and dared to innovate and pursue excellence.
Chat Online
Address：No. 416, Jianye Road, Jinqiao South District, Pudong New Area, Shanghai, China
