Flowsheet for treatment of Copper Sulfide ores rich inminerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60-65% silica, with pyrite, arsenopyrite, and calcite with 3 to 4% copper.
Kansanshi copper mine is situated in the north western province of Zambia. As a result of the mineral variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed.
A method for extracting copper from a mineral feed containing copper sulphide mineral 1, which involves crushing and blending the feed 2, 6, 10 followed by leaching of the feed in an autoclave 20 . The conditions in the autoclave are controlled so that the presence of oxygen at superatmospheric oxygen pressure maintains the ratio of ferrous to ferric ions at a level so as to facilitate the ...
Processing Sulfide Ores. Historically, miners have shipped their sulfide concentrates to overseas smelters that have little to no regulations or emissions controls. However, with the implementation of the Mercury Export Ban of 2008 and the high costs of installing equipment to prepare sulfide ores for cyanide leaching, many companies are ...
extent by concentrating the sulphide component in the ore to mass pulls of 15 to 30 wt%, with gold recovery of 60 to 70%. Maximum Au, Ag and sulphide recoveries of 70%, 45% and 89% respectively were obtained at a grind size of P 80 of 70µm at a considerably high mass pull to concentrate (30 wt%).
The ore-dressing method of processing simple copper sulfide and mixed ore usually chooses the flotation beneficiation. While the way of polymetallic copper sulfide ore processing, according to its different composition, needs to be selected from the methods such as flotation-gravity separation, flotation-magnetic separation, and flotation ...
A method of roasting copper-iron-sulphide ore concentrate or mixture, wherein the ratio of sulphur values to copper values is preferably at least one, to yield a calcined product, for the separation and recovery of copper values by acid leaching and electrolytic deposition, having at least 99 percent of its copper values soluble in dilute sulphuric acid and no more than 10 percent of the iron ...
Traditional processing of copper sulphide ore bodies utilises flotation to produce a saleable copper-rich sulphide concentrate. Cyprium's management team has developed unique intellectual property relating to sulphide heap leach processing methodology, an atypical alternative method to economically extract copper from sulphide ores.
Copper ore divides into ore sulfide,ore oxide and mixing ore according to its oxide rate . The main process for copper ore is flotation, for refractory mixed copper ore and refractory oxide ore, normally use hydrometallurgy process .It is a high technological enterprise that integrated research, manufacture, sales and service . The company has multiple subsidiaries such as Mineral ...
Both ore types can be economically mined, however, the most common source of copper ore is the sulfide ore mineral chalcopyrite, which accounts for about 50 percent of copper production.
Processing copper sulphide ores . United States Patent 6537440 . Abstract: A method for extracting copper from a mineral feed containing copper sulphide mineral 1, which involves crushing and blending the feed 2, 6, 10 followed by leaching of the feed in an autoclave 20. The conditions in the autoclave are controlled so that the presence of ...
pyrometallurgical processing route of copper sulphides. Three copper sulphide leaching and refining processes are discussed: total pressure oxidation, ferric sulphate leaching and copper chloride leaching. The effect of mineralogy on the choice of processing technology is …
If the ore contains considerable amounts of copper sulphide and native copper in addition to the secondary copper minerals, oxidizing acid leaching (hot pressure oxygen acid leaching, high salt leaching, bacterial leaching) or oxidizing roasting—acid leaching can be adopted to decompose the ore.
Flotation of Nickel-Copper Sulphide Ore: Optimisation of Process Parameters Using Taguchi Method August 2014 Conference: International Conference on Mining, Material and Metallurgical Engineering
of refractory copper sulphide ores by S.W. Robertson*, P.J. van Staden*, and A. Seyedbagheri* Synopsis Acid heap leaching has been extensively applied to the processing of copper oxide ores, with recovery of copper by solvent extraction and electrowinning. Heap leaching has …
3. 3. Processing of Copper Ore. Top: Sulfide ore processing. Bottom: Oxide ore processing. The process varies slightly depending on the type of ore that is being mined. Sulfide ores are first put through a jaw or gyratory crusher to reduce the rocks to about 7 - 8 inches. This material is then fed to a secondary grinder that further reduces the ...
For copper sulfide ore, electrolysis is the final stage in the process of pyrometallurgy, in which anode copper slabs are hung in a large tank full of a copper-based electrolyte solution and an electric current is applied, resulting in the plating of copper onto 99.9% pure copper cathodes.
It produces a saleable Cu/Ag sulphide by-product that is suitable for smelting and which makes a useful contribution to the overall profitability of the mine.Appendix A. General process data for the Gedabek plant Unit process ValueHeap leaching Ore feed size to agglomeration À25 mm Addition rate of cement and lime 5 and 3 kg/t ore Irrigation ...
Processing Copper Sulfide Ore . Sulfide ores are generally processed using pyrometallurgy. Mining considerations: Sulfide ore is often less abundant. Pyrometallurgy process is more expensive. Sulfide ore is often a higher-grade ore (contains more copper) Ultimately more copper can be extracted from sulfide ore deposits.
The electrochemistry of real gold ore processing wastewater solutions from copper sulfide containing gold ore has been investigated. Analysis shows that the wastewater contains a range of sulfur compounds in various oxidation states from sulfide to sulfate. The electrochemical characteristics of the gold ore processing wastewater were evaluated using rotating disk, cyclic …
Copper ore crushing process 1. Beneficiation methods of copper sulfide ore Copper sulfide can be divided into single copper ore, copper sulfur ore, copper-molybdenum deposit, copper nickel, carrollite and so on. Basically, only flotation can be considered in its separation.
Heap Leaching Oxide and Sulfide Copper Ores. Heap leaching is a simple means of recovering copper from oxide and oxide-sulfide ores. Although this method requires relatively low capital investment, it suffers from low copper recoveries and relatively high acid consumption. The objectives of this study were (1) to determine what factors ...
ABB recently won an order to deliver a comprehensive process and power solution that will double the capacity of KAZ Minerals' sulphide ore processing plant in Aktogay, Kazakhstan. The project is the third major order from this customer and will re-use the engineering and solution configuration from the company's two other production lines ...
LEACHING OF A ROASTED COPPER SULFIDE ORE Rosselle Kim P. Castillano, Wilfredo T. Gatdula Jr., Gin Derick L. Magno, Jhunalyn H. Parantar METE 157N: HYDROMETALLURGY LABORTORY ABSTRACT Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions, but a very high extraction can be obtained if the copper ore is in the oxidized condition.
The mixed-priority flotation process is suitable for the extraction of copper from dense massive sulfide ore and disseminated sulfide ore with a non-sulfide content of more than 10-15%. The process flow is shown in the figure below.
recoverable copper from 664 metric tonnes of mill ore grading 0.42% Cu, 356 million metric tonnes of heap leach averaging 0.51% Cu, and 2243 million metric tonnes of run-of-mine leach with an average grade of 0.18% Cu (Freeport McMoRan 2016 Form 10-K Report). This study was undertaken to aid ore processing at
Different methods are used to process copper sulfide ores depending on the concentration of copper within the ore — higher-concentrated ores …
The Escondida Sulphide Leach Project (SLP) has been designed to initially produce 180,000 tonnes-per-annum (tpa) of high quality copper cathode through a process of bacterially assisted leaching of low-grade ROM sulphide and oxide ore. The sulphide ore will be sourced from the existing Escondida pit and oxide and sulphide ore will be sourced from
In the extraction of copper from its sulphide ore, when ore is subjected to roasting, some of it is oxidised to Cu 2 O which reacts with the remaining Cu 2 S (sulphide ore) to give copper metal. Cu 2 S +2Cu 2 O → 6Cu +SO 2 ↑ In this process, Cu 2 S behaves as reducing agent.
Copper is a metal that is present low in the reactivity series. It mainly occurs in nature in the form of sulphide ore which can be converted into the corresponding oxide simply by heating in the absence of air, a process known as roasting. The obtained metal is then purified by electrolytic refining.
