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. 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. Hocking, in handbook of chemical technology and pollution control third edition, 2005. 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. Pdf leaching of primary copper sulfide ore in chloride. These slimes contain copper, gold, lead, nickel, platinum, selenium, silver and. How copper is extracted, crushed, and sent to the two major processing methods. Pdf joiner allows you to merge multiple pdf documents and images into a single pdf file, free of charge. In certain cases, however, hydrometallurgy is used to remove easilysoluble waste or. The most commonly used route in the hydrometallurgical extraction of zinc and copper from a sulphide ore is the concentrateroastleachelectro winning process.
Leach residue is treated for gold recovery and the resulting leach liquor is directed to lead, copper, silver and. 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. Traditional copper hydrometallurgy process typically consists of atmospheric leaching, solvent extraction sx and electrowinning ew. Hydrometallurgical extraction of zinc and copper a 57fe. Med soda pdf merge kan du sla ihop och kombinera tva eller fler dokument i en enda pdffil. 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. 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. Sammanfoga pdffiler sla ihop pdffiler online soda pdf. Semantic scholar extracted view of design of copper cobalt hydrometallurgical circuits by graeme miller. We use small cameras to follow the path of copper ore as it is processed into pure copper sheets. Copper hydrometallurgy plants for high grade ores and.
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. Leaching kinetics of copper from waste printed circuit boards by electrogenerated chlorine in hcl solution eunyoung kima, minseuk kimb, jaechun leeb. 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. For more than 30 years, a significant number of processes have been developed to leach copper from chalcopyrite concentrates. Copper has the largest production in the world among all the nonferrous metals produced from pyrometallurgical approach. Pdf extraction of copper, zinc, nickel and cobalt in. 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. Pdf covellinisation of copper sulphide minerals under. Primary metal production michigan technological university. The original impetus for solution methods for copper extraction before the development of froth flotation technology was.
Pyrometallurgy is a branch of extractive metallurgy. Agents for leaching copper can be acid, base, or salt solutions. Of all of these agents, sulphuric acid has been given the broadest industrial application in hydrometallurgy of copper. Effect of holed ferrum electrodes hfe on the efficiency of the electrocoagulation process for copper recovery and optimization of parameters, using rsm. 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.
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. Indeed, patinized copper is the architectural focal point of many modern buildings for its natural look. Hydrometallurgical production of copper from flotation. Pyrometallurgical treatment may produce products able to be sold such as pure metals, or intermediate compounds or alloys, suitable as feed for. 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. Covellinisation of copper sulphide minerals under pressure leaching conditions article pdf available in hydrometallurgy 7.
Content introduction process stages leaching solution concentration and purification metal recovery hydrometallurgy versus pyrometallurgy conclusion references 2. Hydrometallurgy results in a final metal product for domestic use or export, rather than a sulfide concentrate. Stages of hydrometallurgical processes supervisor dr. Copper leaching from chalcopyrite concentrates springerlink. Usually leaching agents and process conditions are selected depending on the material type. Hydrometallurgical process development for complex ores. The university of british columbia and the department of materials engineering have a rich history in the field of hydrometallurgy. We are planning for a 5000 tons holding capacity for the vat and feed grade is 1% copper. Effective hydrometallurgy can be achieved through chemical precipitation with an alkali such as magnesium oxide. 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. It has been reported that in the smelting processes from sulfide concentrates for copper production, the slag volume generated reaches 2. 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. Pyro and hydrometallurgical copper processing p3 youtube.
Leaching kinetics of copper from waste printed circuit. However, it is also known as a green metal for the green patina that it acquires due to weathering. Det har aldrig varit enklare att sla ihop dina filer. Quickly merge multiple pdf files or part of them into a single one. Copper is traditionally known as the red metal after its natural color. Copper that is mined from copper ore, after beneficiation, becomes high quality copper concentrate. 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.
Merge pdf, split pdf, compress pdf, office to pdf, pdf to jpg and more. 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. Extraction of copper, zinc, nickel and cobalt in acid oxidative leaching of chalcopyrite at the presence of deepsea manganese nodules as oxidant. For a variety oftechnical and economic reasons, theseoresoften cannot beprocessed by normal. Hydrometallurgical production of copper from flotation concentrates by j.
These reactions involve numerous different solids, liquids, and gases, and are carried out using many diverse types of furnaces. Due to the depletion of oxidized copper ores, it necessitates the need to focus on metallurgical studies regarding sulphide copper ores, such as chalcopyrite. Introduction the most important operation in hydrometallurgy is leaching of properly prepared raw material by means of a specific chemical compound leaching agent. Unsubscribe from international minerals engineering congress. Would there be any channeling effect in the vat as we are p.
Combine pdfs in the order you want with the easiest pdf merger available. Hi we are planning a vat leaching for hms rejects of copper oxide ore. Copper hydrometallurgy plants for high grade ores and copper concentrates international minerals engineering congress. Besides most gold and much silver, large tonnages of copper and zinc are produced by hydrometallurgy. Copper hydrometallurgy is a branch of metallurgy method to extract copper directly from those difficulttoconcentrate copper oxide ore.
How hydrometallurgy and the sxew process made copper the. Hydrometallurgy is a method for obtaining metals from their ores. Our pdf merger allows you to quickly combine multiple pdf files into one single pdf document, in just a few clicks. Copper ore hydrometallurgy and pressure leachingcopper. Then, after being smelted, refined copper and copper products are yielded. Dutrizac symposium on copper hydrometallurgy cu2007 volume iv, book 2 by p. Principles of extractive metallurgy rakes h kumar email. This paper details two other positive uses of iron in hydrometallurgy. Hydrometallurgy 9 cobalt processing options explored. 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.
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. Many of the flow sheets are unique in their use of hydrometallurgical techniques to improve performance, compared to. There are two ways of smelting copper, one is pyrometallurgy, the other hydrometallurgical. This free online tool allows to combine multiple pdf or image files into a single pdf document. 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. Chalcopyrite cufes 2 is one of the most abundant copper bearing minerals, which accounts for approximately 70 percent of the worlds known copper reserves. 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. Hydrometallurgy refers to the application of aqueous solutions for metal recovery from ores, and has been practiced for copper recovery for many years.
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