Hydrometallurgical extraction of zinc and copper a 57fe. This free online tool allows to combine multiple pdf or image files into a single pdf document. Med soda pdf merge kan du sla ihop och kombinera tva eller fler dokument i en enda pdffil. Due to the depletion of oxidized copper ores, it necessitates the need to focus on metallurgical studies regarding sulphide copper ores, such as chalcopyrite. 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. 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. Pdf extraction of copper, zinc, nickel and cobalt in. Pyrometallurgy is a branch of extractive metallurgy. Copper hydrometallurgy plants for high grade ores and copper concentrates international minerals engineering congress. 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. The second case describes the use of iron as a reductant for the leaching of refractory cobalt oxides. How copper is extracted, crushed, and sent to the two major processing methods. 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. Extraction of copper, zinc, nickel and cobalt in acid oxidative leaching of chalcopyrite at the presence of deepsea manganese nodules as oxidant.
Traditional copper hydrometallurgy process typically consists of atmospheric leaching, solvent extraction sx and electrowinning ew. We use small cameras to follow the path of copper ore as it is processed into pure copper sheets. Stages of hydrometallurgical processes supervisor dr. In certain cases, however, hydrometallurgy is used to remove easilysoluble waste or. For a variety oftechnical and economic reasons, theseoresoften cannot beprocessed by normal. Copper that is mined from copper ore, after beneficiation, becomes high quality copper concentrate. Copper has the largest production in the world among all the nonferrous metals produced from pyrometallurgical approach.
Pdf leaching of primary copper sulfide ore in chloride. Pdf joiner allows you to merge multiple pdf documents and images into a single pdf file, free of charge. These slimes contain copper, gold, lead, nickel, platinum, selenium, silver and. Sammanfoga pdffiler sla ihop pdffiler online soda pdf.
For more than 30 years, a significant number of processes have been developed to leach copper from chalcopyrite concentrates. Pyro and hydrometallurgical copper processing p3 youtube. 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. Chalcopyrite cufes 2 is one of the most abundant copper bearing minerals, which accounts for approximately 70 percent of the worlds known copper reserves. Hydrometallurgical production of copper from flotation concentrates by j.
Leach residue is treated for gold recovery and the resulting leach liquor is directed to lead, copper, silver and. However, it is also known as a green metal for the green patina that it acquires due to weathering. Of all of these agents, sulphuric acid has been given the broadest industrial application in hydrometallurgy of copper. We are planning for a 5000 tons holding capacity for the vat and feed grade is 1% copper. Merge pdf, split pdf, compress pdf, office to pdf, pdf to jpg and more.
Det har aldrig varit enklare att sla ihop dina filer. Copper cobalt hydrometallurgy has seen resurgence in recent years with the development of projects in zambia and the democratic republic of congo drc formerly zaire. Hydrometallurgical production of copper from flotation. Primary metal production michigan technological university. There are two ways of smelting copper, one is pyrometallurgy, the other hydrometallurgical. Copper is traditionally known as the red metal after its natural color.
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. 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. 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. Hi we are planning a vat leaching for hms rejects of copper oxide ore.
Pyrometallurgical treatment may produce products able to be sold such as pure metals, or intermediate compounds or alloys, suitable as feed for. Hydrometallurgy results in a final metal product for domestic use or export, rather than a sulfide concentrate. Effect of holed ferrum electrodes hfe on the efficiency of the electrocoagulation process for copper recovery and optimization of parameters, using rsm. Dharma rao, editor mineral lndustry research laboratory. Would there be any channeling effect in the vat as we are p. Leaching kinetics of copper from waste printed circuit. 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. Usually leaching agents and process conditions are selected depending on the material type. Quickly merge multiple pdf files or part of them into a single one. Principles of extractive metallurgy rakes h kumar email. Hydrometallurgy refers to the application of aqueous solutions for metal recovery from ores, and has been practiced for copper recovery for many years. Unsubscribe from international minerals engineering congress. However, thereare probably other factors that have contributed towards this trend.
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. 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. Hocking, in handbook of chemical technology and pollution control third edition, 2005. Hydrometallurgy is a method for obtaining metals from their ores. These reactions involve numerous different solids, liquids, and gases, and are carried out using many diverse types of furnaces. The university of british columbia and the department of materials engineering have a rich history in the field of hydrometallurgy. 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. 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. Content introduction process stages leaching solution concentration and purification metal recovery hydrometallurgy versus pyrometallurgy conclusion references 2. It has been reported that in the smelting processes from sulfide concentrates for copper production, the slag volume generated reaches 2. Metal chemical processing techniques that complement hydrometallurgy are pyrometallurgy, vapour metallurgy and molten salt electrometallurgy. Hydrometallurgical process development for complex ores. Then, after being smelted, refined copper and copper products are yielded.
Semantic scholar extracted view of design of copper cobalt hydrometallurgical circuits by graeme miller. Recent hydrometallurgy articles recently published articles from hydrometallurgy. The most commonly used route in the hydrometallurgical extraction of zinc and copper from a sulphide ore is the concentrateroastleachelectro winning process. 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. Combine pdfs in the order you want with the easiest pdf merger available. Besides most gold and much silver, large tonnages of copper and zinc are produced by hydrometallurgy. The original impetus for solution methods for copper extraction before the development of froth flotation technology was. Introduction the most important operation in hydrometallurgy is leaching of properly prepared raw material by means of a specific chemical compound leaching agent. Copper hydrometallurgy is a branch of metallurgy method to extract copper directly from those difficulttoconcentrate copper oxide ore. Effective hydrometallurgy can be achieved through chemical precipitation with an alkali such as magnesium oxide. Hydrometallurgy 9 cobalt processing options explored. Copper leaching from chalcopyrite concentrates springerlink. How hydrometallurgy and the sxew process made copper the. Our pdf merger allows you to quickly combine multiple pdf files into one single pdf document, in just a few clicks.
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. Pdf covellinisation of copper sulphide minerals under. 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. Just upload files you want to join together, reorder.
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