copper recovery from slag
Improving Copper Recovery from Production Slags by ,, Improving Copper Recovery from Production Slags by Advances Stirring Methods Proceedings of EMC 2011 3 treated in the existing copper extraction route or separately in a subsequent reactor the slag phase can be used as construction material for example 12 Conventional pyrometallurgical copper slag ,(PDF) Characterization and recovery of copper values from ,, Characterization and recovery of copper values from discarded slag Sundeep Mohanty Subfossil diatoms and chironomids along an altitudinal gradient in the High Tatra Mountain lakes: a multi-proxy record of past environmental trends Peter Bitusˇ´ık Æ Vladimı´r Kubovcˇ´ık Æ Elena Sˇtefkova´ Æ Peter G Appleby Æ Marek Svitok ,EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN THE ,, Copper is present in a smelting slag from Teniente Converter (TC) in the form of mecha-nically entrained matte inclusions and dissolved copper Copper recovery from the slag requires magnetite reduction to liberate matte inclusions and create conditions for co-reduction of dissolved cuprous oxide Efficiency of copper recovery from the slag in anCopper Smelting Slag Recovery, Copper smelting slag is produced from copper pyrometallurgy (both smelting and converting stages), usually grading at 03-3% The slag may also contains lead & zinc minerals like galena, sphalerite Copper Smelting Slag Recovery-equipment for recovering copper from furnace slags, Dc Arch Furnace For Copper Recovery From Slags Dc arch furnace for copper recovery from slags the mt reverberatory furnace slag dump at nkana in zambia contains a substantial quantity of cobalt a mw dc arc furnace has been built at chambishi for the purpose of recovering cobalt from the slag the technology was jointly developed by mintek and anglovaal mining ltd avmin and the furnace was ,.
Metal recovery from copper converter slag by roasting with ,, Jan 01, 1997· A study of the recovery of copper, cobalt, nickel and zinc from copper converter slag by roasting with ferric sulphate is reported Roasting of converter slag with ferric sulphate, followed by leaching with water, was carried out in order to bring the metal values into solutionRecovery of copper and cobalt from ancient slag, About 25 million tonnes of copper smelter slag are available in Küre, northern part of Turkey This slag contains large amounts of metallic values such as copper and cobalt A representative slag sample containing 098% Cu, 049% Co and 5147% Fe was used in the experimental studiRecovery of copper from reverberatory furnace slag by ,, Mar 01, 2004· The recovery of copper from reverberatory furnace slag utilizing flotation has been studied The effective factors such as particle size, pH, the amount and type of collector and additives, and flotation time were examined The effect of cooling rate on flotation behavior of the slag ,BACKGROUND REPORT SECONDARY COPPER SMELTING, ,, Figure 22-1 Low-grade copper recovery electrolyte in the refinery cells or sold as a product Smelting of low-grade copper scrap begins with melting in either a blast or a rotary furnace, resulting in slag and impure copper If a blast furnace is used, this copper is charged to aPrecious metal recoveries in secondary copper smelting ,, Dec 31, 2019· The recovery of precious metals from the WEEE is currently performed in copper-making circuits including copper smelters, converters and secondary (black) copper smelters Black copper smelting is typically implemented for low-grade copper scrap, which may be highly oxidized and includes a wide range of impurities, typically lead, tin, zinc ,.
Metal biorecovery in acid solutions from a copper smelter slag, Mar 01, 2017· 1 Introduction Reclamation of metals from slag materials has been of interest for waste management purposes as well as for resource recovery In the absence of sustainable technology of large-scale processing of slag waste streams, stockpiling in heaps and tailings is a common approach but is potentially ridden with environmental problems due to stormwater, wind and dust and accidental ,Base metals recovery from copper smelter slag by oxidising ,, Dec 01, 2002· Leaching tests were carried out at pH 25 on ground slag samples (COMPARATIVE RESULTS OF COPPER FLOTATION FROM ,, copper content in the ore of copper depos-its, which are nowadays in exploitation Slags, obtained by metallurgical treatment of copper, usually with different methods of preparation and concentration, are treated for recovery of copper Smelter slag of reverberatory furnace is obtained in the process of metallurgical con-PHYSICOCHEMICAL CHARACTERIZATION OF COPPER ,, recovery The copper analysis remaining after conventional slag cleaning can be close to 1% while molybdenum is sometime found in a range of 02 to 04%, depending on kind of mineral treated and technology used These concentrations are higher in some cases than the analysis of the original ore and thus may warrant recovery by retreatmentRECOVERY OF IRON FROM COPPER FLASH SMELTING SLAGS, Recovery of Iron from Copper Flash Smelting Slags Figure 3 shows the rapid decreasing of copper content in the slag during the first 15 min-utes with the graphite rod introduced into the melt, while the iron concentration is main-tained almost constant over same period of ,.
Processing of Waste Copper Converter Slag Using Organic ,, An innovative, economical, and environmentally sound hydrometallurgical process has been proposed for recovering Cu, Ni, and Co from copper-rich converter slag by organic acids In the leaching experiments, the effects of organic acid concentrations, pulp density, temperature, and time were investigated Optimum recovery of 991% Cu, 892% Ni, 94% Co, and 992% Fe was achieved in 9–10 h ,Factors influencing base metal recovery from waste ,, The recovery of cobalt and copper from waste slag was studied in a plasma DC-arc furnace in reducing conditions Three fluxes, CaO, CaF 2, and TiO , were investigated for their influence on selective recovery of cobalt into an iron-rich alloy A further investigation on the influence of furnace power on the reduction of slag to recoverRecovery of copper from copper slag and copper slag ,, A number of methods for metal recovery from copper slag were reported These methods can be classified into three categories, flotation, leaching and roasting Sulfide flotation method for the ,Pyrometallurgical recovery of copper from slag material ,, Pyrometallurgical recovery of copper from slag material United States Patent 4032327 Abstract: A cyclic, two-stage process is disclosed for pyrometallurgical recovery of copper as a high-grade matte from molten slag material containing both dissolved and/or entrained copper valu A charge of the copper-bearing slag material is treated in ,Copper Loss in Slag, An innovative method was devised to improve copper recovery and operational efficiency of the Cu converter slag-cleaning furnace, by utilising both carbon and fluoride values of an otherwise ,.
US3666440A, copper is recovered from copper-containing slag by putting the matte and slag in a molten state together in a slag treating furnace at a volume ration of more than 1:5, the melts in the furnace being maintained under agitation so that the slag and matte are in intimate contact so as to efficiently transfer copper from the slag to the matteA study on copper recovery from the slag of Outokumpu ,, Therefore, the recovery of the copper from this slag has a practical importance and heavily influences the operational costs A part of the copper in the slag is in form of fine inclusions suspended in the slag; however, the majority of the copper is dissolved in it The slag cleaning process is carried out in an electric furnace with coke and ,Recovery of cobalt, nickel, and copper from slags, using ,, Copper sulphide and copper metal (with its inherent cobalt content), because of their higher densities and immiscibility with the slag, settle from the molten slag into the metal bath Improving recoveries via this mechanism would involve decreasing the viscosity of the slag (by increased temperature or flux additions), and / or increasing the ,Recovery of Copper from Slow Cooled Ausmelt Furnace Slag ,, The recovery of copper by floatation from slow cooled Ausmelt furnace slag was studied in this paper The phases and composition of the slow cooled slag were analyzed The factors which affected the copper recovery efficiency such as grinding fineness, pH value of flotation medium, different collectors and floating process were investigatedWO2015143574A1, The invention relates to a method for recovering copper, Mo, Fe, Pt, Au, Ag, Zn, Ni, Sn, Co, U, Re, Ge, Se, rare earth metals and any other metal from the Periodic Table of the Elements present in the slag content, obtained from the slag produced by copper smelting such as in the fusion and conversion of slag, from reverberatory furnaces, and especially the Teniente converter and Pierce-Smith ,.
(PDF) Recovery of metal values from copper smelter slags ,, Pressure leaching of copper converter slag using dilute sulphuric acid for the extraction of cobalt, nickel and copper valu Hydro- metallurgy, 10:305-312 4 Anand, S, Kanta Rao, P and Jena, PK, 1980 Recovery of copper, nickel and cobalt from copper converter slag through ferric chloride leaching Hydrometallurgy, 5:355-365Copper Slag Recovery, Copper Slag Recovery Cal-Chem Metals is currently purchasing copper bearing slag from a variety of industries including copper rod mills, copper tube mills and other industries where there is a need to melt copper A byproduct of copper melting is the production of slag Cal-Chem purchases this waste stream material and brings it to their ,RECOVERY OF METAL VALUES FROM COPPER SLAG, What is claimed is 1 A process for the recovery of metal values from copper smelter slag material which comprises mixing with agitation a unit part by weight of slag and about a unit part by weight of concentrated sulfuric acid to form an acid-slag mixture, incorporating in the acid-slag mixture about a unit part by weight of water, and allowing the mixture to react to produce a dry, solid ,Copper Recovery in Smelting Slag Recycling, Copper Recovery in Smelting Slag Recycling Copper smelting slag is the solid waste generated in the process of smelting copper Due to the limitations of the smelting technology, most of the copper smelting slag contains a certain amount of copper Disposing and recycling copper can effectively reduce the waste of useful resources, while ,Recovery of metal values from copper slag and reuse of ,, Copper slag was characterized and processed The pyro-metallurgical processing prospects to generate utilizable materials were arrived at through rigorous thermodynamic analysis Carbothermal reduction at elevated temperature (near 1440°C) helped recover a majority of the metal values (eg, Fe, Cu and Mo) into the iron-rich alloy product ,.