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. An outline of a hydrometallurgical method employed for the processing of a copper sulphide concentrate is presented. Ionic liquids with saccharinate anions are selective of cdii ions. A hydrometallurgical route was developed to extract metals such as gold, silver, copper, and selenium from anode slime from sarcheshmeh copper complex in iran. Feed acid concentrations in the range tested had a minor impact. During the hydrometallurgical processing of the major base metals cu, zn, ni and co, the presence of. About 80 % of primary copper production comes from lowgrade or poor sulfide ores. Decrease of particle size correlated with increase of oxidant concentration had a favourable effect on the degree of cu dissolution. Apr 16, 2010 hydrometallurgical extraction and reclamation by jackson, e.
Hydrometallurgical techniques are quickly gaining acceptance as a reliable and cheap method for extracting copper from their ores. The recovery of zinc, lead and copper by froth flotation, even as a relatively rich concentrate, presents today a rather routine problem. This wellestablished, remarkable hydrometallurgical achievement fills an important role in our technical ability to extract copper in an efficient and costeffective way. Hydrometallurgical processes have many advantages over. Solvent extraction, also known as liquidliquid extraction, is a method to separate compounds based on their relative solubilities in two different immiscible liquids, usually water and an organic solvent.
Between 20% and 30% of the worlds refined copper is produced by hydrometallurgical methods. Extraction of investigated metals from the raw material %. Hydrometallurgical processing of complex ores and concentrates is becoming. A copper pendant was found in what is now northern iraq that dates to 8700 bce. Indeed, patinized copper is the architectural focal point of many modern buildings for its natural look. Generally, copper extraction follows the sequence see figure below. Solvent extraction of cu, mo, v, and u from leach solutions of copper. A basic process for the leaching extraction of cd, zn, cu and co from hydrometallurgical residue sanchez loredo et al. Chemical hydrometallurgy download ebook pdf, epub, tuebl.
The processes employed for solution concentration and purification in the hydrometallurgical processing of manganese include precipitation, cementation, solvent extraction and ion exchange. This book is concerned with the theoretical principles of hydrometallurgical processes and engineering aspects. This chapter addresses the issue of scale formation in the tungsten hydrometallurgical process. Copper solvent extraction hydroxyoxime the enabling technology 3. Effect of extractant concentration to study the effect of extractant concentration on the extraction of cuii, the. The kennecott copper company, which has operated a hydrometallurgical circuit successfully for the recovery of highpurity silver from the slimes wet chlorination residue, has permitted me to provide some operation information and results using the technology.
High chloride in pls and their impact on copper solvent. Two distinct processes are involved in hydrometallurgy. Hydrometallurgical production of copper from flotation. Read chloratebased oxidative hydrometallurgical extraction of copper and zinc from copper concentrate sulfide ores using mild acidic conditions, hydrometallurgy on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at. The cesl copper process consists of four main steps. The extraction and recovery of metals from their ores by china nonstandard special material equipment industry hydrometallurgical.
Electrometallurgy and environmental hydrometallurgy. Results showed that high hydrochloric acid and cupric ion concentration assisted leaching. Copper processing involves two common flow sheets shown schematically in figure 2. The hydrometallurgical extraction and recovery of highpurity.
That allows the leaching of these target metals with ammonia as the first stage inside an hydrometallurgical rout that also engloves solvent extraction and electrowining or crystalitzation. Pyro and hydrometallurgical copper processing p3 youtube. Scribd is the worlds largest social reading and publishing site. Hydrometallurgical recovery of critical metals from weee. Most nonconventional hydrometallurgical methods of the processing of complex sulfide ores are based on metals extraction from bulk flotation concentrates 2. Solvent extraction also proves more efficient and it plays vital roles in the purification and separation of the manganese as compared to all other techniques. Copper leaching, solvent extraction, and electrowinning.
Hydrometallurgy is a technique within the field of extractive metallurgy, the obtaining of metals from their ores. Our results show that the extraction mechanism proceeds via a mixed process involving both. Since, scaling is more pronounced in the filter presses and evaporators this chapter. Processing techniques that complement hydrometallurgy are pyrometallurgy, vapour metallurgy, and molten salt electrometallurgy.
The overall process is visualized to consist of low temperature chlorinationselective oxidation, followed by aqueous chloride leaching and sxew for producing electrolytic copper, elemental sulfur and ferric oxide. Due to the difficult situation in the country since the nineties, the collapse of the mining industry was the main reason why zinc production in kolwezi went down. Hydrometallurgical approach for leaching of metals from copper. Chloratebased oxidative hydrometallurgical extraction of. The hydrometallurgical treatment of copper concentrates. The successful development of the cyprus copper process has been an evolutionary series of events covering a time span of some seven years. Us2842436a selective rejection of iron and aluminum in.
Extraction of copper from chalcopyrite concentrates. Mining for recovery of copper, cobalt, zinc and manganese from a complex clayey ore. Welcome to cdc stacks hydrometallurgical production of. It consists in leaching the concentrate with acid ferric sulphate solution, followed by electrolysis of the copper with simultaneous anodic regeneration of the leaching agent in electrolysers with diaphragms.
A gaseous chlorination process for hydrometallurgical treatment of a chalcopyrite concentrate was investigated. Copper refinery how does copper extraction from scrap if the demand for copper can be supplemented with the recycled copper supplies, the mining and refining of. Pdf recently, very unfavorable trends of decreasing copper content and increasing complexity of the polish copper ores as well as lowering. Review of hydrometallurgical recovery of zinc from industrial. Extraction of copper mining, concentration, smelting. However, it is also known as a green metal for the green patina that it acquires due to weathering. As an alternative, a hydrometallurgical process, economical and environmentally acceptable, is proposed to be developed.
Scale formation in tungsten hydrometallurgical process. The adaptation of the solvent extraction process to the metallurgical industry has been extremely slow up until recent years. Copper, as native copper, is one of the few metals to naturally occur as an uncompounded mineral. For the extraction of copper by leaching, the anode slime was heated and stirred with 4 m sulphuric acid in the presence of oxygen. This site is like a library, use search box in the widget to get ebook that you want. Base metals recovery from zinc hydrometallurgical plant.
As an operating procedure this process was initiated during the war years as part of the atomic energy effort. Pdf hydrometallurgical recovery of metals from ewaste. Ammonia salts can form complexes with nickel and copper while their cost and toxicity is low. Copper ore is extracted using three principle techniques. Hydrometallurgical options to add value to copper projects. Hydrometallurgical options to add value to copper projects and operations peter rohner core resources, brisbane. Solvent extraction of copper from zinc sulphate leach solutions using lix 622 and the effect of organic contamination on zinc electrowinning. As a pretreatment for the coppercontaining concentrates, the concentrates are ground, preferrably with an attritortype grinding device, to reduce the particle. Hydrometallurgy is a technique within the field of extractive metallurgy, the obtaining of metals. 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.
Simulation and economic analysis of a hydrometallurgical approach developed for the treatment of waste printed circuit boards b. Copper extraction refers to the methods used to obtain copper from its ores. We use small cameras to follow the path of copper ore as it is processed into pure copper sheets. Hydrometallurgical approach for leaching of metals from copper rich side stream. X2jsyw5rjz40mzwvyt5dajqzajqz0wfgzwf0agvylcbblk0ulcbtb2xllcbllkmuigfuzcbecmvpc2luz2vylcbelkiuicgxotk5ksbqawxvdc1qbgfudcbfdmfsdwf0aw9uig9mie1hbmdhbmvzzsbszw1vdmfsigfuzc. Two hydrometallurgical processes for the recovery of nickel from oxide ores have been commercialized. The concentration of ore is required and it is done by the froth flotation method. Hydrometallurgical processing of copper smelter dust for. 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.
Refer to the help section for more detailed instructions. Hydrometallurgical oxidized minerals, copper sulfide chalcocite hydrometallurgical extraction of copper leaching heap, preceded by. Pdf new hydrometallurgical process for gold recovery. Very simply, it converts copper concentrates of varying composition into copper metal which has been proven to be equivalent in every way to electrolytic tough pitch copper suitable for electrical applications. Review of hydrometallurgical recovery of zinc from. Hydrometallurgical extraction and reclamation 1986 edition. This volume recognizes the growing role of solvent extraction and electrowinning technology in the world copper business. Hydrometallurgy involve the use of aqueous solutions for the recovery of metals from ores, concentrates, and recycled or residual materials. Selective extraction of cobaltii and lithiumi using phosphorous acids from leach liquor of spent lithiumion batteries. New developments in the atmospheric and pressure leaching of copper ores and concentrates david dreisinger university of british columbia vancouver, canada 2. In the hydrometallurgical processing of manganese from its ore, the leach liquors often contain divalent ions such as iron, manganese, copper, nickel, cobalt and zinc along with other. Study of integrated leaching and electrowinning of copper. Hydrometallurgical process an overview sciencedirect. Hydrometallurgical production of copper from flotation concentrates by j.
The process involves the leaching of the concentrate and the recovery of valuable metals such as zinc, copper, indium, gallium and silver by. Copper is traditionally known as the red metal after its natural color. Copper flotation tailings, extraction, hydrometallurgy. In view of the steady depletion of primary sources of copper and the increased global demand for refined copper, it becomes necessary to explore some secondary sources for possible extraction of. Did you know that copper is one of the worlds most important natural. The extraction and recovery of metals from their ores by processes in which aqueous solutions play a predominant role.
Read hydrometallurgical recovery of copper and cobalt from reductionroasted copper converter slag, minerals engineering on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. The flow sheet that is typically employed at a mine site is the hydrometallurgical process that treats solution from heap leaching by sx and electrowinning. Simulation and economic analysis of a hydrometallurgical. Chemical hydrometallurgy download ebook pdf, epub, tuebl, mobi.
Solvent extraction the process by which copper ions are leached or otherwise extracted from the raw ore using chemical agents. Results of leaching studies that the recovery extraction of zn, fe and cu for hydrometallurgical residue increases with increasing acid concentration and temperature. Beneficiation by froth flotation of ore to give copper concentrate. Hydrometallurgy is the most suitable extractive technique for the extraction and purification of manganese as compared to all other techniques including biometallurgy and pyrometallurgical processes. Compared to conventional extraction methods such as froth flotation, smelting and refining, hydrometallurgical techniques are slower and generally reserved for low grade ores or mine wastes. Hydrometallurgical method for recovery of zinc, copper and cadmium from their ferrites.
In tungsten process popularly known as ammonium paratungstate process figure 27. Pdf solvent extraction in hydrometallurgical processing of polish. Hydrometallurgical extraction of precious, rare and base metals. The copper containing solutions are drained into collecting tanks and then into cementation units. Sponsored by the extraction and processing division epd of tms, the mineral and metallurgical processing division mpd of sme, metallurgical society metsoc of cim 2003 tmsepd fall meeting held in conjunction with 33rd annual hydrometallurgy meeting and 2003 conference of metallurgists vancouver bc canada august 2427,2003. Compared to conventional extraction methods such as froth flotation, smelting and refining, hydrometallurgical techniques are. The percentage of copper in the actual ore is too low for direct extraction of copper to be viable. Besides most gold and much silver, large tonnages of copper and zinc are produced by hydrometallurgy.
During the hydrometallurgical processing of the major base metals cu, zn, ni and co, the. A process for extracting copper from a copper containing concentrate by comminuting the concentrate in the presence of a liquid dispersing agent which inhibits agglomeration and forms a pulp, and leaching the pulp in the presence of a silver catalyst. Hydrometallurgical article about hydrometallurgical by the. Selective recovery of cobaltii towards lithiumi from. Simple method for extracting gold from electrical and.
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 topics covered include. Various hydrometallurgical methods have been developed using lixiviants such as acids, bases, and salts for base metal extraction. Hydrometallurgical extraction and reclamation pdf hydrometallurgical extraction and reclamation has 1 available editions to buy at alibris. The processes employed for solu tion concentration and purification in the hydrometallurgical processing of include manganese precipitation, cementation, solvent extraction and ion exchange. Click download or read online button to get chemical hydrometallurgy book now. Us2842436a us562358a us56235856a us2842436a us 2842436 a us2842436 a us 2842436a us 562358 a us562358 a us 562358a us 56235856 a us56235856 a us 56235856a us 2842436 a us2842436 a us 2842436a authority us united states prior art keywords metal acid aluminum non ph prior art date 19560 legal status the legal status is an assumption and is not a legal conclusion. In this background, the goal of the present work was to investigate the application of hydrometallurgical processes on weee shredding dust for. How copper is extracted, crushed, and sent to the two major processing methods. Us5316567a hydrometallurgical copper extraction process. In the hydrometallurgical processing of manganese from its ore, the leach liquors often contain divalent ions such as iron, manganese, copper.
Solvent extraction in hydrometallurgy a purification or concentration. The hydrometallurgical processes of production of copper are discussed and leaching of chalcopyrite as the main sulphide mineral of copper processed in industry is used as an example. Leaching of metals from hydrometallurgical residue by. Electrokinetic applications in hydrometallurgical copper. Hydrometallurgical considerations in processing arsenicrich. The conversion of copper consists of a series of physical and electrochemical processes.
Us3949051a hydrometallurgical process for extracting copper. Development of a highly efficient hydrometallurgical. Leaching involves the use of aqueous solutions to extract metal from metal bearing. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. In hydrometallurgical processing of zinc sulphide concentrate, leach residue, purification residue, beta cake, pot skimming, etc. Hydrometallurgical processes are used for recovery of many metals. May 31, 1994 a process for the extraction of copper from a sulphide copper ore or concentrate comprises the steps of subjecting the ore or concentrate to agitation leaching at an elevated temperature and pressure to obtain a resulting acidic leach liquor containing dissolved copper and reducing the acidity of the resulting acidic leach liquor by effecting percolation leaching of a bed of lowgrade copper. A process for hydrometallurgically recovering copper from concentrates of chalcopyrite and other sulfide and mixed sulfide ores utilizes the pretreatment step of fine grinding of the concentrates coupled with subsequent leaching steps. Pdf recent advances in the hydrometallurgy of copper. 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.
Rice3 abstract dissolution of chalcopyrite with acidified ferric sulfate produces a sulfur layer on the unreacted chalcopyrite surface that interferes with further dissolution. After enrichment steps, the copper concentrates are usually treated by pyrometallurgical methods. Habashi and others published recent advances in the. Copper was known to some of the oldest civilizations on record, and has a history of use that is at least 10,000 years old. Hydrometallurgical processing of copper smelter dust for copper recovery as nanoparticles. Select up to three search categories and corresponding keywords using the fields to the right. Hydrometallurgical processing of complex ores and concentrates is becoming increasingly. How hydrometallurgy and the sxew process made copper the.
The commonest ore used in the extraction of copper is chalcopyrite cufes 2 also known as copper pyrites and other such sulfides. 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. The extraction mechanism has been studied by the determination of the coextraction of the counter ion of the metal salt. Hydrometallurgical processes play an important role in the extraction and recovery of cadmium from various media. Extraction of copper from leach liquor of metallic component in. Extraction metallurgy download ebook pdf, epub, tuebl, mobi. Hydrometallurgical copper extraction process cominco. A new hydrometallurgical process has been developed for recovery of gold from secondary sources such as gravitational concentrates from alluvial sands. A process for the extraction of copper from a sulphide copper ore or concentrate comprises the steps of subjecting the ore or concentrate to agitation leaching at an elevated temperature and pressure to obtain a resulting acidic leach liquor containing dissolved copper and reducing the acidity of the resulting acidic leach liquor by effecting percolation leaching of a bed of lowgrade copper. 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. Base metals recovery from zinc hydrometallurgical plant residues 19 cementation of copper, cadmium and cobalt on zinc powder, with copper and cadmium being recovered as byproducts. 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. A new hydrometallurgical method for the processing of copper.
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