Basfs broad range includes aldoxime and ketoxime extractants and incorporates blends formulated to specific customer needs operational challenges. Copper leaching, solvent extraction, and electrowinning. This site is like a library, use search box in the widget to get ebook that you want. The equilibrium extraction constant was correlated with the ionic strength. The most common approach employs two phases in contact at ambient conditions of temperature and pressure, in which the contaminants are exchanged between the solid matrix and a liquid solvent. About 30% of the worlds copper is produced by acid leaching, solvent extraction sx, and electrowinning cox, 2004. Control of an industrial copper solvent extraction process core. Hydrometallurgical separation of zinc and copper from waste brass. Students are tasked to prepare a salicylaldoxime ligand and samples of the corresponding copper and nickel complexes, before. It is a upgrade of metallurgical engineering paper called static simulation program of copper solvent extraction configurations using microsoft excel solver.
The techniques for extraction of copper from oxidized ores are quite different from those employed for the sulfide ores. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. This proceedings documents the present status of the sxew business. This wellestablished, remarkable hydrometallurgical achievement fills an important role in our technical ability to extract copper in an efficient and costeffective way. Kordosky synopsis the concept of selectively extracting copper from a lowgrade dump leach solution followed by stripping the copper into an acid solution from which electrowon copper cathodes could. The present invention is directed to a process for recovering copper from a coppercontaining material by pressure oxidation followed by solvent extraction and electrowinning. Solvent extraction of copper from an industrial sulfate liquor using. The present invention relates to the production of copper by solvent extraction of copper containing solutions and the. Our range of solvent extraction reagents are produced at our state of art facility.
With this two level control strategy the production of the copper solvent extraction process is. Solvent extraction has been routinely used for copper refining since its invention in the 1960s, and it is suggested that well over 10% of refined copper production from ores is obtained by solvent extraction, accounting for millions of tonnes of metal. They extract also significant amounts of copper from concentrated 34m nitrate solutions. Hydroxyoximes are wellknown extractants which are widely used for copper extraction from dilute acidic. This presentation discusses the basics of solvent extraction process as employed in petroleum refining. Solvent extraction sx of copper ii from ammonia solutions proceeds similarly to that from acidic solutions, but complexation of metal m by ammonia ligands must be considered. Journal of hazardous materials b120 2005 1118 solvent extraction applied to the recovery of heavy metals from galvanic sludge j.
Copper solvent extraction in hydrometallurgy citeseerx. The experiment serves as a model of an important modern industrial process that combines aspects of organicinorganic synthesis and analysis. The conversion of copper consists of a series of physical and electrochemical processes. The solvent extraction separation of molybdenum and copper from. Solvent extraction an overview sciencedirect topics. N,ndialkylpyridinecarboxamides and their copper complexes are sufficiently soluble in the hydrocarbon phase to carry out extraction. Trends covered are fiberreinforced plastic construction mixer box and settler designs, reverse flow settlers, and advanced mixer design. Various parameters for the extraction and separation of copper and zinc such as effect of ph, extractant concentration, phase ratio etc. The oxidized ores, consisting of the silicates, carbonates and sulfates, are treated by several methods, all involving some form of leaching of the crushed ore with sulfuric acid to produce impure solutions of copper sulfate. The coppercontaining solution formed by pressure oxidation is diluted before solvent extraction and the raffinate solution from solvent extraction is neutralized to reduce the acid levels in the raffinate solution. Reagent improvements have led the way, but they have been accompanied by innovations in leaching and improvements in electrowinning. A raffinate stream fed to a cyclone removes entrained organic phase which organic phase may be. Copper recovery by solvent extraction has progressed from a technology with limited application for copper recovery from dilute sulfuric acid leach solution to a technology with broad application for copper recovery from a variety of leach solutions. Solvent extraction, consists of transferring one or more solute s contained in a feed solution to another immiscible liquid solvent.
A high copper nickel ratio on the copper loaded organic is obtained by using an extra extraction stage in which copper crowds nickel from the loaded organic, i. Muralikrishna, valli manickam, in environmental management, 2017. Solvent extraction separation and recovery of copper. A comparative study was also carried out on the extraction capability of cuii ions using other solvents including d2ehpa.
In addition, acid consumption in the cementation process exceeds that in solvent extraction electrowinning by about 1. Lix 664n concentration in kerosene was varied from 10% to 40% vv and its effect was studied on percent extraction of copper and nickel for. Pdf growing role of solvent extraction in copper ores. The ability that you get from copper leaching, solvent extraction, and electrowinning technology could be. Lix solvent extractants are recognized throughout the copper industry as the go to reagent for copper recovery. Extraction of copper from ammoniacal solutions with lix 84 and lix 54 used alone and their mixture was studied, and a chemical model was proposed and verified. This solution, known as pregnant liquor, is recovered and then contacted with an organic solvent, referred to as the extractant, in the solvent extraction stage sx.
The international copper study group estimates that 16% of the refined copper production from ores in 2006 used sxew. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Extraction of copper mining, concentration, smelting. Solvent extraction is a wellestablished technique for the removal and separation of various metal ions. Carriers and tracers, which are unique to radiochemistry, are described in section 14. The concentration of ore is required and it is done by the froth flotation method.
The parameters that affect the extraction of copper ions with this biphasic. The copper is extracted from the solvent with strong aqueous acid which then deposits pure copper onto cathodes using an. Pdf solvent extraction of copper, nickel and zinc by. Copper recovery using leachsolvent extractionelectrowinning technology. Solvent extraction can occur under three processing approaches. This paper is the final report on design and optimization of copper solvent extraction configurations. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. For the experimental conditions studied, cyanex 272 showed a good recovery of zn after the stripping stage using h2so4. A process for separating zinc and copper values from an aqueous solution of copper and zinc salts having a ph of between about 0. Solvent extraction free download as powerpoint presentation. Pdf design and optimization of copper solvent extraction. Information and directions are provided for the experiment which investigates the recovery of copper metal from ore using solvent extraction. Us3989607a solvent extraction and electrowinning of zinc.
Applications of solvent extraction linkedin slideshare. Pdf this paper is the final report on design and optimization of copper solvent extraction configurations. Most hydrometallurgical flowsheets recover cobalt from the raffinate of the lowgrade copper solvent extraction circuit. Solvent extraction separation and recovery of copper, nickel and zinc from printed circuit board by cyanex 272. Us5895633a solvent extraction process for recovering copper. Castroa a mechanical engineering department, university of minho, 4800058 guimar. Solvent extraction of copper experiment oresome resources. Solvent extraction techniques are used in a wide variety of industries other than hydrometallurgy and a large range of extraction equipment has been developed over the years, many types having apparent advantages over mixersettlers from the point of view of both solvent inventory and plot area. With innovative products, global field support and industry leading technical expertise, basf mining solutions provides sustainable solutions which increase productivity, recovery and flexibility throughout the mining operations including leaching, solvent extraction, flotation, solidliquid separation and tailings management. Process streams formed during the process containing entrained liquids are fed to a cyclone to remove either organic extractant or water aqueous solutions from the stream. Solvent extraction and electrowinning sxew is a twostage hydrometallurgical process that first extracts and upgrades copper ions from lowgrade leach solutions into a solvent containing a chemical that selectively reacts with and binds the copper in the solvent.
A multidisciplinary experiment for advanced undergraduate students has been developed in the context of extractive metallurgy. The solvent extraction of copper and zinc from the bioleaching solutions of lowgrade sulfide ores with lix984 and d2ehpa was investigated. An improved method and apparatus is provided for the production of copper using a solvent extraction electrowinning process. Copper extraction from ammoniacal solutions with lix 84. Separation of copper and nickel by liquidliquid extraction from aqueous solutions was studied using lix 664n in kerosene as solvent. Growing role of solvent extraction in copper ores processing article pdf available in fizykochemiczne problemy mineralurgii 4242. The extraction behavior of cuii ions from a real sulfate liquor obtained from. However, they are strong extractants and extract efficiently copper already from dilute chloride solutions cl 0. Most hydrometallurgical flowsheets recover cobalt from the raffinate of the lowgrade copper solventextraction circuit. Here the copper is extracted away from the aqueous phase leaving behind most of the impurities that were in the leach solution. The effect is weak for the strong extractant lix 84 and its mixture but very strong for the weak extractant lix 54. Introduction the most important operation in hydrometallurgy is leaching of properly prepared.
Winner of the standing ovation award for best powerpoint templates from presentations magazine. Analytical chemistry applications of solvent extraction names of participants ayesha saleem, namra babar, amina ashraf, ayesha bibi, kainat sajjad, wardah riaz roll numbers. Separation of copper and nickel by solvent extraction. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. The present invention is directed to a process for recovering copper from a copper containing material by pressure oxidation followed by solvent extraction and electrowinning. The commonest ore used in the extraction of copper is chalcopyrite cufes 2 also known as copper pyrites and other such sulfides.
Ppt solvent extraction powerpoint presentation free to. Copper extraction refers to the methods used to obtain copper from its ores. A procedure for recovery and separation of molybdenum vi and copper ii from acid leaching residual solution of chilean molybdenite concentrate by solvent. Copper extraction from ammoniacal solutions with lix 84 and. Copper recovery by solvent extraction has progressed from a. Some processes employed in the industry are listed. The influences of extractant content, aqueous ph value, phase ratio and equilibration time on metals extraction were studied. Both metals were taken in their sulfate form and ratio of copper to nickel in feed solutions was maintained as 10. Us5895633a solvent extraction process for recovering. Liquidliquid extraction and separation of copperii and. At the core of basfs solvent extraction offering is an extensive range of lix oxime extractants that are widely used in the purification of copper leach solutions. Design of this 2ex1s configuration was based on the expected value of copper extraction efficiency of 90%. The results show that lix984 has a higher selectivity for copper than for iron, zinc and other metals, and has the copper.
Click download or read online button to get extraction metallurgy book now. In this experiment students carry out an investigation similar to what is conducted within industrial laboratories. These three oximes form the basis for a wide range of reagents which are derived by blending the oximes in a variety of ways, for example, with diluent, with one another. Solvent extraction sx of copperii from ammonia solutions proceeds similarly to that from acidic solutions, but complexation of metal m by ammonia ligands must be considered. Uidliquid extraction copper ion extraction preconcentration.
Solvent extraction applied to the recovery of heavy metals. How hydrometallurgy and the sxew process made copper the. Liquidliquid extraction, mostly used in analysis, is a technique in which a solution is brought into contact with a second solvent. Solvent extraction although solvent extraction as a method of separation has long been known to the chemists, only in recent years it has achieved recognition among analysts as a powerful separation technique. Us5849172a copper solvent extraction and electrowinning.
Extraction metallurgy download ebook pdf, epub, tuebl, mobi. This volume recognizes the growing role of solvent extraction and electrowinning technology in the world copper business. The copper containing solution formed by pressure oxidation is diluted before solvent extraction and the raffinate solution from solvent extraction is neutralized to. Maccabe thiele method was introduced in design of copper solvent extraction configuration when copper solvent extraction technology started to be used for highgrade copper ore.
Solvent extraction of copper, nickel and zinc by cyanex 272 article pdf available in international journal of physical sciences 72012. Solvent extraction and electrowinning of zinc and copper. Solvent extraction separation and recovery of copper, nickel. The percentage of copper in the actual ore is too low for direct extraction of copper to be viable. Solvent extraction and separation of copper and zinc from. The problems related to the separation of undesirable and toxic metals are also discussed. Of particular interest is the fact that specialized reagents have been developed to meet the specific needs of certain leaching solutions.
Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. It is even more popular for refining copper from scrap. This website uses cookies to ensure you get the best experience on our website. Solvent extraction studies of copper and zinc have been carried out using versatic 10 acid and cyanex 272 separately from a model brass pickle liquor. Pdf solvent extraction of copperii from concentrated leach liquors. The results of fundamental studies on solvent extraction of synthetic solutions of cuii showed that metal ion extraction increased with increasing ph and. Extraction and purification of copper from semantic scholar. With innovative products, global field support and industry leading technical expertise, basf mining solutions provides sustainable solutions which increase productivity, recovery and flexibility throughout the mining operations including leaching, solvent extraction. Pdf solvent extraction of copper, nickel and zinc by cyanex 272.
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