Copper is traditionally known as the red metal after its natural color. Pdf recent advances in the hydrometallurgy of copper. Pdf solvent extraction in hydrometallurgical processing of polish. The metalenriched ground sample obtained from the beneficiation of the sized pcbs in a laboratory scale column type air separator contained mainly 49. The recovery of zinc, lead and copper by froth flotation, even as a relatively rich concentrate, presents today a rather routine problem. She regularly presents accredited continuing professional development training courses, many of which focus on hydrometallurgy of copper. Hydrometallurgical article about hydrometallurgical by. This chapter focuses on heap leaching for refined copper production, which is a hydrometallurgical copper extraction method.
A process has been developed to extract gold, silver, indium, gallium, lead, copper, zinc, and other metals from a large resource using an oxidizing acid chloride heap leaching technology. Outotec hydrometallurgical nickel plants and processes. Processing techniques that complement hydrometallurgy are pyrometallurgy, vapour metallurgy, and molten salt electrometallurgy. Hydrometallurgical considerations in processing arsenic. Semantic scholar extracted view of design of coppercobalt hydrometallurgical circuits by graeme miller. The sulphuric acid concentrations will depend upon the leaching techniques used, and the composition of the zinc calcine.
When equilibrium between the metal on the soils surface and the metal contained by the solution is. Generally, copper extraction follows the sequence see figure below. Simple method for extracting gold from electrical and. As an operating procedure this process was initiated during the war years as part of the atomic energy effort. Hydrometallurgical copper extraction process cominco.
Hydrometallurgy conference 2009, the southern african institute of mining and metallurgy, 2009. Sole and others published solvent extraction in the hydrometallurgical processing and purification of metals. The most important operation in hydrometallurgy is. We use small cameras to follow the path of copper ore as it is processed into pure copper sheets.
Most nonconventional hydrometallurgical methods of the processing of complex sulfide ores are based on metals extraction from bulk flotation concentrates 2. Solvent extraction of copperii from concentrated leach liquors. Hydrometallurgical approach for leaching of metals from copper. Us5667557a hydrometallurgical extraction and recovery of. Electrochemical processing is always used in producing highpurity copper. Hydrometallurgical separation of zinc and copper from. Hydrometallurgical extraction and reclamation 1986. A typical example is pressure reduction of nickel or copper from a solution by hydrogen. Hydrometallurgical process an overview sciencedirect. Hydrometallurgy involve the use of aqueous solutions for the recovery of metals from ores, concentrates, and recycled or residual materials. Electrokinetic applications in hydrometallurgical copper.
The acidity of the resulting acidic leach liquor is then reduced by affecting percolation leaching of. Hydrometallurgical extraction accounts for about 2. Hydrometallurgical process for copper recovery from waste. Karimi reyhane mazahernasab 916181007 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Hydrometallurgical production of copper from flotation concentrates by j. Stages of hydrometallurgical processes supervisor dr. Metals from lowgrade metal containing secondary raw materials new recovery processes for critical and valuable metals chromic smart combinations of existing methods and new technological innovations to extract valuable and critical metals from slags ss fecr.
Hydrometallurgical extraction of copper and cobalt from oxidised coppercobalt ore using ammonia solution. Hydrometallurgy the treatment of primary raw materials minerals or mineral concentrates or secondary raw materials endoflife products by aqueous solutions, in order to achieve the dissolution of the metals to be recovered solvent extraction in hydrometallurgy a purification or concentration unit operation. 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. D, hydrometallurgical process development for complex ores and concentrates. Hydrometallurgical extraction and reclamation pdf hydrometallurgical extraction and reclamation has 1 available editions to buy at alibris. The development programme includes extensive hydrometallurgical testwork that is being managed by kvaerner. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. Hydrometallurgical copper recovery can be conveniently considered in two stages. Hydrometallurgy is a technique within the field of extractive metallurgy, the obtaining of metals from their ores. Hydrometallurgical extraction of precious, rare and base.
Rice3 abstract dissolution of chalcopyrite with acidified ferric sulfate produces a sulfur layer on the unreacted chalcopyrite surface that interferes with further dissolution. Copper production from recycled endofuse objects is about 15% of copperfromore copper production. In conventional sx plants this will recover up to 98% of the copper still leaving 0. Rob mean innovation in hydrometallurgical plants a sustainable hydrometallurgical process to develop copper deposits challenged with high arsenic teck resources limited keith mayhew. Schlitt synopsis the namibian copper joint venture has been formed to undertake development of the haib copper deposit, one of the largest undeveloped copper resources in africa. Hydrometallurgical processes of antimony extraction from. Hydrometallurgical extraction of copper and cobalt from. The adaptation of the solvent extraction process to the metallurgical industry has been extremely slow up until recent years. 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. A hydrometallurgical process for treating copper feed materials containing gold andor silver by simultaneously leaching copper, gold andor silver into an aqueous cyanide solution, recovering copper in metallic form by electrowinning and regenerating cyanide ions is provided, wherein high current efficiencies are achieved at high current densities and at low copper concentrations. Copper extraction refers to the methods used to obtain copper from its ores.
The extraction and recovery of metals from their ores by china nonstandard special material equipment industry hydrometallurgical. The problems related to the separation of undesirable and toxic metals are also discussed. The conversion of copper consists of a series of physical and electrochemical processes. Data concerning the preparation of antimony and complex ores by pyrometallurgical and hydrometallurgical methods, as well as results on developing a procedure for the hydrometallurgical processing of slime antimony concentrates using chloride dealkalization, have been presented. The pregnant liquor was clarified and tested for typical solvent extraction. Hydrometallurgical techniques are quickly gaining acceptance as a reliable and cheap method for extracting copper from their ores. At an optimal energy consumption of 1,520 kw hjst, 95 pct of the copper was extracted.
The main disadvantage of the direct hydrometallurgical treatment of the. Efficient mineral processing and hydrometallurgical. The processes employed for solu tion concentration and purification in the hydrometallurgical processing of include manganese precipitation, cementation, solvent extraction and ion exchange. Dutrizac symposium on copper hydrometallurgy cu2007 volume iv, book 2 by p. Techniques are also now available for the recovery of zinc and nickel without resort to. After enrichment steps, the copper concentrates are usually treated by pyrometallurgical methods. Hydrometallurgical processing of liion battery scrap from electric vehicles proceedings of emc 2011 5 the leaching process is inevitable for the whole recycling process. Hydrometallurgical production of copper from flotation. Pdf hydrometallurgical recovery of metals from ewaste. However, it is also known as a green metal for the green patina that it acquires due to weathering. Indeed, patinized copper is the architectural focal point of many modern buildings for its natural look.
Pyro and hydrometallurgical copper processing p3 youtube. Us5223024a hydrometallurgical copper extraction process. Seliee thabane 11668 a dissertation submitted to the faculty of engineering and the built environment at the university of witwatersrand, johannesburg, in partfulfilment of the requirements for the degree of master of science in. 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. How copper is extracted, crushed, and sent to the two major processing methods. Compared to conventional extraction methods such as froth flotation, smelting and refining, hydrometallurgical techniques are.
In largescale hydrometallurgical production for example, in leaching copper from oxidized ores in lumps the process is sometimes carried out by means of washing piles of ore with weak solutions of sulfuric acid. Review of hydrometallurgical recovery of zinc from. Various hydrometallurgical methods have been developed using lixiviants such as acids, bases, and salts for base metal extraction. Concept for a hydrometallurgical processing of a copper. She is a coauthor of extractive metallurgy of copper 5th ed. A process for the extraction of copper from a copper ore or concentrate comprises first subjecting the ore or concentrate to agitation leaching at an elevated temperature and pressure in the presence of oxygen and water to obtain a resulting acidic leach liquor which contains dissolved copper. Pressure oxidation leach is a typical hydrometallurgical process used to. Hydrometallurgical method for recovery of zinc, copper and cadmium from their ferrites.
About 80 % of primary copper production comes from lowgrade or poor sulfide ores. In recent years, most of the activities on the recovery of base and precious metals from waste pcbs are focused on hydrometallurgical techniques as more exact, predictable and easily. Pdf recently, very unfavorable trends of decreasing copper content and increasing complexity of the polish copper ores as well as lowering. Hydrometallurgical extraction and reclamation by jackson, e. In this work, the usage of solvent extraction for copper and cobalt is investigated. Simple method for extracting gold from electrical and electronic wastes using hydrometallurgical process mohammad aali dehchenari1, saeed hosseinpoor2, rahim aali3, nilowfar salighehdar iran4, mohsen mehdipour5 1bsc of mechanic engineering,young researchers and elite club, majlesi branch, islamic azad university, isfahan, iran 2instructor of civil engineering structure, department of. Hydrometallurgical processing of liion battery scrap from.
Hydrometallurgical considerations in processing arsenicrich copper concentrates. How hydrometallurgy and the sxew process made copper the. Beneficiation by froth flotation of ore to give copper concentrate. Improvement in copper and cobalt production due to inclusion of solvent extraction of copper at mopani copper mines plcs. Waste printed circuit boards wpcbs, as the main component of the waste, are significant source of base and precious metals, especially copper and gold. The ore is crushed andor ground to improve reactivity and then contacted with a solution containing naclhclnaocl. Hydrometallurgical extraction of copper and cobalt from oxidised copper cobalt ore using ammonia solution.
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