Us6755891b2 process for the treatment or removal of. 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. These largescale recycling processes are either hydrometallurgical processes similar to. The recovery of zinc, lead and copper by froth flotation, even as a relatively rich concentrate, presents today a rather routine problem. Hydrometallurgical extraction of rare earth elements from low. Hydrometallurgical treatment of a zinc concentrate by. Hydrometallurgical extraction and reclamation university. Mohanan, p k and raghavan, r and patnaik, s c 1997 hydrometallurgical extraction and recovery of silver from silver concentrate generated at the zinc electrowinning plant. Jackson, ellis horwood limited, halsted press, chichester, 1986, 266 pp. Detoxification and reclamation of hydrometallurgical arsenic.
A new hydrometallurgical process has been developed for recovery of gold from secondary sources such as gravitational concentrates from alluvial sands. Hydrometallurgy the extraction of metals from ores, concentrates, and various waste products by means of aqueous solutions of chemical reagents with the subsequent separation out of the metals from these solutions. 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 exploration and development corporation, came on line1. Pdf hydrometallurgical recovery of metals from ewaste. Processing techniques that complement hydrometallurgy are pyrometallurgy, vapour metallurgy, and molten salt electrometallurgy. 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. As an operating procedure this process was initiated during the war years as part of the atomic energy effort. Overview of the hydrometallurgical processes for the. Meab metallextraktion ab, a swedish company founded 1970, is a consulting and trading company, active in the hydrometallurgical field. Hydrometallurgical definition of hydrometallurgical by.
Clean environment campaigns are already a reality of life, and en. Mine reclamation and closure plans must describe in sufficient. Hydrometallurgical extraction of zinc from zinc ferrites. Hydrometallurgy involve the use of aqueous solutions for the recovery of metals from ores, concentrates, and recycled or residual materials. Water balances in hydrometallurgical refineries saimm. How hydrometallurgy and the sxew process made copper the. Reclamation of gallium, indium and rare earth elements from photovoltaics, solidstate lighting and electronics waste, tecnicas reunidas technology center tr has developed a novel hydrometallurgical process for the recovery of strategy rare earth elements. In germany, there are three metal reclamation companies, namely gfe metalle and materialien gmbh, aura metallurgie gmbh, and spent catalyst recycling scr gmbh. Hydrometallurgy definition is the treatment of ores by wet processes such as leaching. However, the method for effective extraction of as and trace metals from asgypsum is still lacking.
Alison emslie lewis extraction of lithium from primary and secondary sources by pretreatment, leaching and separation. Our special area of interest is solvent extraction. Portable hydrometallurgical mining extraction equipment. Teck cominco have developed a low cost process for the direct extraction of zinc from sulphide ores called hydrozinc. Hydrometallurgical extraction reclamation equipment. Unlimited viewing of the article pdf and any associated supplements and figures. Efficient mineral processing and hydrometallurgical. 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. Due to the presence of significant amounts of leachable compounds. Extraction of reecontaining material such as an ore or a specific waste fraction.
Both pyrometallurgical and hydrometallurgical processes are applied at gfes metal recovery plant 696. Hydrometallurgical extraction and reclamation pdf hydrometallurgical extraction and reclamation by jackson, e. In this study, the polymer recovered 100% of the rare earth metals from the waste product extracts. A process for the treatment or removal of impurities, such as arsenic, antimony or bismuth, generated as byproducts during smelting and refining of copper concentrates, comprises subjecting the byproducts to pressure oxidation along with a copper concentrate in a hydrometallurgical copper extraction process or the treatment of impurities when present in a concentrate by subjecting the. Characterization and treatment of wastewater produced during. Pyrometallurgical process an overview sciencedirect topics. Revolutionising the hydrometallurgical extraction of base. The hydrometallurgical extraction and recovery of highpurity.
Detoxification and reclamation of hydrometallurgical. The sxew process is a hydrometallurgical process since it operates at ambient temperatures and the copper is in either an aqueous environment or an organic environment during its processing until it is reduced to the metal. Hydrometallurgical article about hydrometallurgical by. The main metals causing reasons for environmental concern were arsenic as, nickel ni and. Two distinct processes are involved in hydrometallurgy. Overview of the hydrometallurgical processes for the recovery of metals from weee. Characterization and treatment of wastewater produced.
Hydrometallurgical extraction of precious, rare and base. Efficient mineral processing and hydrometallurgical recovery. Hydrometallurgical extraction of zinc from zinc ferrites hydrometallurgical extraction of zinc from zinc ferrites leclerc, nathalie. 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. She has coauthored more than 80 publications and regularly presents accredited professional development courses in this field. Extraction 2018 is over and registration is no longer available for these courses. Hydrometallurgy is defined as the extraction and reclamation of metals from ores by treating them with aqueous chemical solutions, including extraction by.
Karimi reyhane mazahernasab 916181007 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The extraction and recovery of metals from their ores by china nonstandard special material equipment industry hydrometallurgical. The extraction and recovery of metals from their ores by processes in which aqueous solutions play a predominant role. Hydrometallurgical recoveryrecycling of platinum by the leaching of spent catalysts. Hydrometallurgical extraction and reclamation ellis horwood series in industrial metals jackson, e on. Hydrozinc a hydrometallurgical zinc extraction process. Hydrometallurgy article about hydrometallurgy by the free. After evaluation of extraction rate, more than 90 % of li and al are already dissolved. For uranium ore deposits, the choice of mining methods and processing options is very depositspecific and dependent on many variables such as the quality and quantity of the ore, the shape and depth of the ore deposit, site. Most hydrometallurgical flowsheets recover cobalt from the raffinate of the low grade copper solventextraction circuit. Hydrometallurgical extraction technologies provide a process route for resource recovery of valuable metals from both. Request pdf hydrometallurgical extraction of rare earth elements from low grade mine tailings the rare earth elements rees present in the kiruna iron ore mine tailings are being considered. Hydrometallurgical process is used to produce molybdenum chemicals, coni. At first it may seem that this would severely restrict the range of processing options that can be exploited, however, this is misleading because a host of chemical reactions and processing.
Hydrometallurgical extraction and reclamation pdf hydrometallurgical extraction and reclamation has 1 available editions to buy at alibris. Simple method for extracting gold from electrical and. Sole is well known in the field of hydrometallurgical solvent extraction, with commodity experience including copper, cobalt, nickel, zinc, titanium, vanadium, platinumgroup metals, gold, and uranium. Copper recovery using leachsolvent extractionelectrowinning. Solid residues of ore processing can be used for land reclamation and in construction industry. Detoxification and reclamation of hydrometallurgical arsenic and trace metalsbearing gypsum via hydrothermal recrystallization in acid solution.
Stages of hydrometallurgical processes supervisor dr. 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. Jackson, hydrometallurgical extraction and reclamation, ellis horwood. 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. With the continuous reduction in the availability of extractive metallurgical curricula in colleges and universities, the concern has in part been from where will the next generation of extractive metallurgists come. Hydrometallurgical extraction reclamation equipmentused electronic equipment became one of the fastest growing waste streams in the world in the past two decades recycling of printed circuit boards pcbs has been based on pyrometallurgy highly polluting recycling technology which causes a variety of environmental problems the most of the. Iexpect that many persons would citethefactthat, whereas the 1960s felt the impact ofthe computer in almost every sphere of life, the 1970saredestined toexperience the impact of the environmentalist. Hydrometallurgical extraction and reclamation ellis horwood.
In this study, simultaneous extraction of as and trace metals from a hydrometallurgical asgypsum via hydrothermal recrystallization in acid solution was investigated. Hydrometallurgical processing of liion battery scrap from. Hydrometallurgical extraction and recovery of silver from. Hydrometallurgical extraction and reclamation ellis. Us3949051a hydrometallurgical process for extracting. Jackson, ellis horwood, chichester, 1986, isbn 0745800483, paperback. Pdf hydrometallurgical approaches to soil remediation process. Pages download pdf hydrometallurgical extraction and reclamation. Lomonosov indicated the possibility of using hydrometallurgical processes for extracting metals from ores. Edition only available as pdf for individual printing. Solvent extraction in hydrometallurgy a purification or concentration. Hydrometallurgical processing of liion battery scrap from electric vehicles proceedings of emc 2011 7 the leaching reaction at the beginning ten minutes proceeds very fast.
Hydrometallurgy vol 17, issue 2, pages 3267 january. Overview of mining and its impacts environmental law alliance. Jul 01, 2003 hydrometallurgical extraction of zinc from zinc ferrites hydrometallurgical extraction of zinc from zinc ferrites leclerc, nathalie. Hydrometallurgical extraction and reclamation docsity. Hydrometallurgy definition of hydrometallurgy by merriam. The hydrometallurgical extraction and recovery of high. T his chapter outlines the basic steps involved in mining, processing, and reclamation that might be suitable for uranium ore deposits in the commonwealth of virginia. The adaptation of the solvent extraction process to the metallurgical industry has been extremely slow up until recent years.
One objective of this article is to emphasize the fact that extractive metallurgy is, in fact, one of many areas of chemical engineering technology. Hydrometallurgical extraction and reclamation 1986. Part of zinc hydrometallurgy and zinc solvent extraction includes the zinc and iron sulphate solution from the hot acid leach will typically contain 80100 gl zn, 2030 gl fe, mostly in the ferric state, and 4060 gl free sulphuric acid. Citescore values are based on citation counts in a given year e. The sulphuric acid concentrations will depend upon the leaching techniques used, and the composition of the zinc calcine.
The feed aqueous solution to purify or concentrate is put in contact. Pdf heavy metals can be recovered from highly contaminated soil. Hydrometallurgical extraction of rare earth elements from. Due to the presence of significant amounts of leachable compounds of zinc, lead, cadmium, chromium and. The hydrometallurgical process involves bioleaching and has a number of advantages which are outlined. Hydrometallurgy is a technique within the field of extractive metallurgy, the obtaining of metals from their ores. 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. Solvent extraction is a pivotal unit operation in many hydrometallurgical circuits, essential to facilitating flowsheet optimization and ensuring final product purity. Hydrometallurgical article about hydrometallurgical by the. Hydrometallurgical definition of hydrometallurgical by the. Overall nonoptimized extraction and recovery yields were generally.
Rare earth elements purification, separation and recycling. Most nonconventional hydrometallurgical methods of the processing of complex sulfide ores are based on metals extraction from bulk flotation concentrates 2. Apr 05, 20 stages of hydrometallurgical processes supervisor dr. Hydrometallurgical extraction and reclamation by jackson, e. Flowsheet options for cobalt recovery in african coppercobalt. Apr 16, 2010 hydrometallurgical extraction and reclamation by jackson, e.