Pdf leaching of primary copper sulfide ore in chloride. Table of contentsbringing copper metal into solutionrecovering copper metal from leach liquorscopper leaching equipmentcopper leaching costscopper leaching practices the advance made in recent times in this branch of metallurgy is indicated by the attention the subject is receiving from important american copper producing companies. The university of british columbia and the department of materials engineering have a rich history in the field of hydrometallurgy. Effect of holed ferrum electrodes hfe on the efficiency of the electrocoagulation process for copper recovery and optimization of parameters, using rsm. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Chalcopyrite cufes 2 is one of the most abundant copper bearing minerals, which accounts for approximately 70 percent of the worlds known copper reserves. Recent hydrometallurgy articles recently published articles from hydrometallurgy. Then, after being smelted, refined copper and copper products are yielded. Copper recovery using leachsolvent extractionelectrowinning technology 65 figure 2 and a catalytic amount of lix 63, was introduced in 19657 and in march 1968 the first commercial copper lsxew operation, the bluebird plan of ranchers. Copper hydrometallurgy plants for high grade ores and copper concentrates international minerals engineering congress.
Stages of hydrometallurgical processes supervisor dr. Pdf covellinisation of copper sulphide minerals under. Would there be any channeling effect in the vat as we are p. Pyrometallurgical treatment may produce products able to be sold such as pure metals, or intermediate compounds or alloys, suitable as feed for. Our pdf merger allows you to quickly combine multiple pdf files into one single pdf document, in just a few clicks. We are planning for a 5000 tons holding capacity for the vat and feed grade is 1% copper.
Traditional copper hydrometallurgy process typically consists of atmospheric leaching, solvent extraction sx and electrowinning ew. Principles of extractive metallurgy rakes h kumar email. These reactions involve numerous different solids, liquids, and gases, and are carried out using many diverse types of furnaces. Dear colleagues, hydrometallurgy, which involves the use of aqueous solutions for the recovery of metals from ores, concentrates, and recycled or residual material, plays an integral role in the multibillion dollar minerals processing industry. Morenci western copper concentrate mineralogy ymixed chalcopyrite, covellite, chalcocite, pyrite medium temperature and direct electrowinning mtdew process selected ybest fit with morenci concentrate production and acid balance yutilize existing ew and sx capacity at morenci copper production capacity 75,000 tons per year. Primary metal production michigan technological university. Hydrometallurgy results in a final metal product for domestic use or export, rather than a sulfide concentrate. Leaching kinetics of copper from waste printed circuit boards by electrogenerated chlorine in hcl solution eunyoung kima, minseuk kimb, jaechun leeb.
Med soda pdf merge kan du sla ihop och kombinera tva eller fler dokument i en enda pdffil. Copper worldwide vol 8 no 3 hydrometallurgy 9 cobalt processing options explored the alta 2018 nickelcobalt copper sessions in perth, wa began with the keynote address by dr kathy sole. There are two ways of smelting copper, one is pyrometallurgy, the other hydrometallurgical. Covellinisation of copper sulphide minerals under pressure leaching conditions article pdf available in hydrometallurgy 7. In order to maximize the recovery of valuable metals such as cobalt, copper and nickel from an acid leach solution, a synthetic, high purity magnesium oxide with. Dharma rao, editor mineral lndustry research laboratory. Indeed, patinized copper is the architectural focal point of many modern buildings for its natural look. However, thereare probably other factors that have contributed towards this trend. Pdf extraction of copper, zinc, nickel and cobalt in. Content introduction process stages leaching solution concentration and purification metal recovery hydrometallurgy versus pyrometallurgy conclusion references 2.
These slimes contain copper, gold, lead, nickel, platinum, selenium, silver and. In certain cases, however, hydrometallurgy is used to remove easilysoluble waste or. Besides most gold and much silver, large tonnages of copper and zinc are produced by hydrometallurgy. The work of frank forward our department head from 19451954 and other collaborators, led to the development of the sherritt process for the hydrometallurgical recovery of nickel and cobalt from sulphide concentrates. The most commonly used route in the hydrometallurgical extraction of zinc and copper from a sulphide ore is the concentrateroastleachelectro winning process.
Extraction of copper, zinc, nickel and cobalt in acid oxidative leaching of chalcopyrite at the presence of deepsea manganese nodules as oxidant. It has been reported that in the smelting processes from sulfide concentrates for copper production, the slag volume generated reaches 2. Copper hydrometallurgy is a branch of metallurgy method to extract copper directly from those difficulttoconcentrate copper oxide ore. Introduction the most important operation in hydrometallurgy is leaching of properly prepared raw material by means of a specific chemical compound leaching agent. Semantic scholar extracted view of design of copper cobalt hydrometallurgical circuits by graeme miller.
For more than 30 years, a significant number of processes have been developed to leach copper from chalcopyrite concentrates. Sammanfoga pdffiler sla ihop pdffiler online soda pdf. In this research, the electrochemical behaviour of chalcopyrite has been analysed under different conditions in order to identify the parameters necessary to increase the leaching rates. Copper leaching from chalcopyrite concentrates springerlink. Hocking, in handbook of chemical technology and pollution control third edition, 2005. The development of ion exchange, solvent extraction, and other processes has led to an extremely broad range of applications of hydrometallurgy, now used to produce more than 70 metallic elements. Pyro and hydrometallurgical copper processing p3 youtube. Dutrizac symposium on copper hydrometallurgy cu2007 volume iv, book 2 by p.
Copper has the largest production in the world among all the nonferrous metals produced from pyrometallurgical approach. Hi we are planning a vat leaching for hms rejects of copper oxide ore. Merge pdf, split pdf, compress pdf, office to pdf, pdf to jpg and more. Hydrometallurgy is the process of extracting metals from ores by dissolving the ore containing the metal of interest into an aqueous phase and recovering the metal from the resulting pregnant liquor.
Hydrometallurgical extraction of zinc and copper a 57fe. Hydrometallurgy is a method for obtaining metals from their ores. Combine pdfs in the order you want with the easiest pdf merger available. Usually leaching agents and process conditions are selected depending on the material type. Copper extraction from primary copper sulfide ore from a typical porphyry copper deposit from antofagasta, chile, was investigated after leaching with a chlorideferrous media at two temperatures. Just upload files you want to join together, reorder.
Leach residue is treated for gold recovery and the resulting leach liquor is directed to lead, copper, silver and. Due to the depletion of oxidized copper ores, it necessitates the need to focus on metallurgical studies regarding sulphide copper ores, such as chalcopyrite. Chapter 6 copper production technology the last boomin technological innovation for the copper industry occurred in the first two decades of this century, whenopen pit mining, flo tation concentration,and the reverberatory smelter were adapted to porphyry copper ores. Hydrometallurgical process development for complex ores. Copper hydrometallurgy plants for high grade ores and.
Det har aldrig varit enklare att sla ihop dina filer. Effective hydrometallurgy can be achieved through chemical precipitation with an alkali such as magnesium oxide. Copper ore hydrometallurgy and pressure leachingcopper. Zijin or the group is a large mining group mainly engaged in the exploration and mining of gold, copper, zinc and other mineral resources, dual listed in hong kong stock exchange h shares, code. The original impetus for solution methods for copper extraction before the development of froth flotation technology was. This paper details two other positive uses of iron in hydrometallurgy. This free online tool allows to combine multiple pdf or image files into a single pdf document. Rice united states department of the interior bruce babbitt, secretary bureau of mines this report is based upon research conducted under an agreement between the university of alabama and the bureau of mines. Pyrometallurgy is a branch of extractive metallurgy. Leaching kinetics of copper from waste printed circuit. Metal chemical processing techniques that complement hydrometallurgy are pyrometallurgy, vapour metallurgy and molten salt electrometallurgy. Quickly merge multiple pdf files or part of them into a single one. Copper that is mined from copper ore, after beneficiation, becomes high quality copper concentrate.
Thus, hydrometallurgy generally involves converting the desired metal or metals in an ore, concentrate or intermediate product into a watersoluble form, followed by recovering from solution a more highly refined product. Many of the flow sheets are unique in their use of hydrometallurgical techniques to improve performance, compared to. How hydrometallurgy and the sxew process made copper the. Copper is traditionally known as the red metal after its natural color. Hydrometallurgy aims to compile studies on novel processes, process design, chemistry, modelling, control, economics and interfaces between unit operations, and to provide a forum for discussions on case histories and operational difficulties. Hydrometallurgy 9 cobalt processing options explored. We use small cameras to follow the path of copper ore as it is processed into pure copper sheets. However, it is also known as a green metal for the green patina that it acquires due to weathering. It consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. Unsubscribe from international minerals engineering congress. Hydrometallurgy refers to the application of aqueous solutions for metal recovery from ores, and has been practiced for copper recovery for many years. It is a technique within the field of extractive metallurgy involving the use of aqueous chemistry for the recovery of metals from ores, concentrates, and recycled or residual materials.
Of all of these agents, sulphuric acid has been given the broadest industrial application in hydrometallurgy of copper. How to invest in copper stocks digging into the copper mining industry can reveal some potential investment opportunities and better explain what it. Agents for leaching copper can be acid, base, or salt solutions. How copper is extracted, crushed, and sent to the two major processing methods.
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