copper recovery from slag in south africa

copper recovery from slag in south africa

  • Recovery of cobalt, nickel, and copper from slags, using

    Nickelcopper converter slag 'A' 100 kVA and 200 kVA Using converter slag from a nickelcopper plant, tests were carried out, in 1990, on a 100 kVA furnace (operated at 30 kW) and on a 200 kVA furnace (operated at 85 kW), at low additions of reductant (in order to minimize the reduction of iron)Pretoria, South Africa Corresponding author: [email protected] Figure 4 shows that the copper recovery from the copper slag increases with an increase in acid concentration An optimum recovery of copper is achieved at 70% H 2 SO 4Recovery of Copper from Reverberatory Copper Slag andCOBALT RECOVERY FROM SOUTHERN AFRICAN COPPER SMELTERS *R T Jones and C Pawlik Mintek 200 Malibongwe Drive, Private Bag X3015, Randburg, 2125, South Africa (*Corresponding author: [email protected]) ABSTRACT Cobalt occurs together with copper in the southern African copper belt, and a large portion of thisCOBALT RECOVERY FROM SOUTHERN AFRICAN COPPER

  • Textural, mineralogical and chemical characteristics of

    Copper slag dumps at Okiep in South Africa total ∼5 million metric tons All economic metals are associated with discrete spheroidal prills • Variable prill size suggests grinding to −45 μm will improve the historic poor copper recovery Recovery of metals from slags can assist environmental rehabilitation of dumps world wideEnhancing the flotation recovery of copper minerals in smelter slags from Namibia prior to disposal (converter slag, TSL slag, reverb slag) were submitted to an external laboratory, SGS (South Africa) Mineralogical analyses on the slags were performed, particularly for the copper and zinc phases Table 1 shows that chalcocite is theEnhancing the flotation recovery of copper minerals inThis recovery is achieved by: • Mining the slag material directly from the dump • Breaking the slag into smaller pieces in a crushing and screening system, releasing the locked metal from slag separating the slag into three size fractions • Separating the liberated metal and slag by means of a gravity separation process, using two jigsAtoll Process outline,recover ferroalloy metal from slag

  • Environmental and Socioeconomic Impact of Copper Slag

    Copper slag is generated when copper and nickel ores are recovered from their parent ores using a pyrometallurgical process, and these ores usually contain other elements which include iron, cobalt, silica, and alumina Slag is a major problem in the metallurgical industries as it is dumped into heaps which have accumulated into millions of tons over the yearsJones R, et al, “Recovery of cobalt from slag in a DC arc furnace at Chambishi, Zambia,” Journal of the South African Institute of Mining and Metallurgy (South Africa), 102(1) (2002), 5–9 Google ScholarDistribution Behaviours of Cu, Co and Fe during CuPK Jena A study of the recovery of copper, nickel and cobalt from copper converter and smelter slags by leaching with ferric chloride is reported The converter slag from Ghatsila, IndiaAn Overview of Recovery of Metals from Slags

  • Extractive Metallurgy of Copper

    108 Electric Furnace CufromSlag Recovery 186 1081 Glogo´w 187 1082 Olympic Dam 187 109 CuinSlag Limitation of DirecttoCopper Smelting 187 1010 DirecttoCopper Impurities 187 1011 Summary 188 References 189 Suggested Reading 189 11 Copper Loss in Slag 191 111 Copper in Slags 191 112 Decreasing Copper in Slag ISince its formation, Atoll Metal Recovery has built 11 major metalfromslag recovery plants in Southern Africa, capable of processing between 120 and 200 t/h of slag It has also constructed a 100 t/h plant for Sweden, a 60 t/h plant for France and has supplied 10 t/h to 35 t/h mobile jigging plants to clients throughout the worldAtoll Metal Recovery, metal recovery servicesAfrica as a reductant to recover copper from copper slag in correlation with their composition since elements present in the KPS are very influential on the final products quality and recovery 2 EXPERIMENTAL 21 Materials A copperslag from the waterjacket furnace, producing coppermatte, containing copper and other baseINVESTIGATION ON POSSIBLE USE OF PALM NUTSHELLS

  • Recovery of cobalt from slag in a DC arc furnace at

    to recover cobalt from this dump, and much research has been carried out in this field Anglovaal Mining Limited (Avmin) of South Africa purchased the reverberatory furnace slag dump at the Nkana smelter and the Chambishi Roast Leach Electrowinning (RLE) plant in 1998 for US $50 million In July 1999, plans were announced to expand theThis recovery is achieved by: • Mining the slag material directly from the dump • Breaking the slag into smaller pieces in a crushing and screening system, releasing the locked metal from slag separating the slag into three size fractions • Separating the liberated metal and slag by means of a gravity separation process, using two jigsAtoll Process outline,recover ferroalloy metal from slagMuch activity with respect to slag copper losses in the period of the 1900s to 1960s was therefore focused on reverberatory slag1,2 Reverberatory furnace matte grades were typically in the range of 30–40 wt% Cu, with a number of operations in South America and Africa operating up to 70 wt% Cu in matteMinimization of Copper Losses in Copper Smelting Slag

  • Distribution Behaviours of Cu, Co and Fe during Cu

    Jones R, et al, “Recovery of cobalt from slag in a DC arc furnace at Chambishi, Zambia,” Journal of the South African Institute of Mining and Metallurgy (South Africa), 102(1) (2002), 5–9 Google ScholarAbout product and suppliers: Alibaba offers 83 slag products About 6% of these are other metals & metal products A wide variety of slag options are available to you, There are 83 slag suppliers, mainly located in Africa The top supplying country or region is South Africa, which supply 100% of slag respectively Buying Request HubSouth Africa Slag, South Africa Slag Manufacturers and2020) is developing new recovery processes for chromium, niobium, molybdenum and vanadium These four metals are crucial for the European industry, but they are sourced mainly from outside Europe in particular from South Africa, Brazil, USA, China, Russia, Kazakhstan and Turkey Europe does have large stocks of industrialCHROMIC: NEW PROCESSES TO RECOVER METALS

  • Development of Continuous Process for

    Copper History in 19th20th Century • Big copper deposits were found – In North America, South America, and Africa <1% Cu in deposit – 45% required to extract copper economically • New technology – Open pit & Flotation108 Electric Furnace CufromSlag Recovery 186 1081 Glogo´w 187 1082 Olympic Dam 187 109 CuinSlag Limitation of DirecttoCopper Smelting 187 1010 DirecttoCopper Impurities 187 1011 Summary 188 References 189 Suggested Reading 189 11 Copper Loss in Slag 191 111 Copper in Slags 191 112 Decreasing Copper in Slag IExtractive Metallurgy of CopperThe use of macadamia nutshells in the recovery of metals from copper slag MK Wa Kalenga and DK Nyembwe School of Mining, Metallurgy and Chemical Engineering Faculty of Engineering and the Built Environment, University of Johannesburg POBOX 17011, Doornfontein 2028, South Africa Corresponding author: AbstractThe use of macadamia nutshells in the recovery of metals

  • Atoll Metal Recovery, metal recovery services

    Since its formation, Atoll Metal Recovery has built 11 major metalfromslag recovery plants in Southern Africa, capable of processing between 120 and 200 t/h of slag It has also constructed a 100 t/h plant for Sweden, a 60 t/h plant for France and has supplied 10 t/h to 35 t/h mobile jigging plants to clients throughout the worldto recover cobalt from this dump, and much research has been carried out in this field Anglovaal Mining Limited (Avmin) of South Africa purchased the reverberatory furnace slag dump at the Nkana smelter and the Chambishi Roast Leach Electrowinning (RLE) plant in 1998 for US $50 million In July 1999, plans were announced to expand theRecovery of cobalt from slag in a DC arc furnace atMuch activity with respect to slag copper losses in the period of the 1900s to 1960s was therefore focused on reverberatory slag1,2 Reverberatory furnace matte grades were typically in the range of 30–40 wt% Cu, with a number of operations in South America and Africa operating up to 70 wt% Cu in matteMinimization of Copper Losses in Copper Smelting Slag

  • Factors affecting nickel recovery from slags produced

    nickel recovery from the slag involved taking pot and spoon samples at the same time as collecting granulated slag from the classifier Samples of flotation feed, flotation concentrates and tailings were also collected early in 2000, and again in 2003, in order toThe Palabora copper mine is South Africa’s leading copper producer It is located 360km northeast of Pretoria, close to the Kruger National Park The project was previously developed by Palabora Mining Company (PMC), which was owned by Rio TintoPalabora Copper Mine, Palabora, South Africa Mining2020) is developing new recovery processes for chromium, niobium, molybdenum and vanadium These four metals are crucial for the European industry, but they are sourced mainly from outside Europe in particular from South Africa, Brazil, USA, China, Russia, Kazakhstan and Turkey Europe does have large stocks of industrialCHROMIC: NEW PROCESSES TO RECOVER METALS

  • Development of Continuous Process for

    Copper History in 19th20th Century • Big copper deposits were found – In North America, South America, and Africa <1% Cu in deposit – 45% required to extract copper economically • New technology – Open pit & Flotation108 Electric Furnace CufromSlag Recovery 186 1081 Glogo´w 187 1082 Olympic Dam 187 109 CuinSlag Limitation of DirecttoCopper Smelting 187 1010 DirecttoCopper Impurities 187 1011 Summary 188 References 189 Suggested Reading 189 11 Copper Loss in Slag 191 111 Copper in Slags 191 112 Decreasing Copper in Slag IExtractive Metallurgy of CopperThe Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux It was blown for several hours by foot or hand bellows By the end of the smelt the copper had separated from the slag, which was tapped offChapter 6 Copper Production Technology

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