copper slag cleaning furnace
Copper Smelting Slag Cleaning in an Electric Furnace by ...
2020-10-16 · Copper slag cleaning using the flotation method and/or in an electric furnace is widely adopted in industrial production.[2,3,4,5] The flotation method has the advantages of low energy consumption and low copper content in the slag, but the waste liquid treatment after flotation has always been an issue.
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MECHANISM OF BUILDUP FORMATION IN AN ELECTRIC
2015-9-7 · The copper slag cleaning in an electric furnace is based on slag reduction and settling of copper matte inclusions. Copper recovery depends on the slag temperature, degree of magnetite reduction and slag residence time. The formation of solid buildup on the furnace hearth leads to the decrease of furnace volume and slag residence time, affecting
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Slag-cleaning furnace - Mining Weekly
2001-9-7 · Copper panels will cool the furnace sidewalls to protect them from slag conditions, a separate gas-cleaning plant being installed so that no additional load is placed on existing environmental ...
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Dalmia - Slag Cleaning
Slag Cleaning Furnace. In this furnace, copper rich oxide slags are melted in electric arc furnaces and coke & copper pyrite are added to reduce copper content in the slag. In order to increase reaction rate, slag is over-heated to produce low viscosity aggressive slag. Dalmia-OCL’s Co-clinker series Magnesia Chrome bricks have excellent ...
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(PDF) Physical Chemistry of Copper Smelting Slags and ...
Implementation of slag cleaning process in the first electric furnace in Chilean copper smelters generated a series of fundamental questions on the effect
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Minimization of Copper Losses in Copper Smelting Slag ...
2012-9-21 · During the last few decades, the pyrometallurgical processes used for cleaning copper smelting slags have been steadily optimized. The electric furnace or rotary slag-cleaning furnace are now generally used to perform this task, giving a level of copper in discard slag typically in the range of 0.55 wt.% and 1.3 wt.%, with most plants reporting copper losses in
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EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN
2015-9-7 · slag cleaning reactor. It creates the conditions that the furnace is over-dimensioned for the amount of slag from Teniente Converter together with charged solid reverts. Efficiency of copper recovery from a slag in an electric furnace depends on number of factors. The furnace dimensions play significant role, determining slag circulation pattern
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Physical chemistry of copper smelting slags and copper ...
investigate the liquidus temperature and the copper losses in slag from the Teniente converter (TC) and from the slag cleaning electrical furnace (EF)
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THE SUBMERGED ARC FURNACE (SAF) STATE OF ART IN
2017-4-3 · Especially slag cleaning furnaces have supplied more than 20 in the last 40 years. Slag cleaning furnaces are commonly connected to smelting units such as Teniente and Noranda converter, Outokumpu flash smelter, reverbertory furnaces. The main function of the furnace is the reduction of the matte and metal level in the slag.
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Kinetics of Copper Reduction from Molten Slags
2014-10-27 · invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate slag cleaning furnace. Reduction of iron oxides from slags using carbon as a reductant in the form of dissolved carbon in iron or graphite has been studied extensively by a large number of researchers. A number of
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Slag-cleaning furnace - Mining Weekly
2001-9-7 · Copper panels will cool the furnace sidewalls to protect them from slag conditions, a separate gas-cleaning plant being installed so that no additional load is placed on existing environmental ...
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(PDF) Physical Chemistry of Copper Smelting
Implementation of slag cleaning process in the first electric furnace in Chilean copper smelters generated a series of fundamental questions on the effect of various factors determining the rate ...
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SAIMM
2019-10-29 · copper slag-cleaning electric furnace. The tap-block was designed without any internal refractory; it relies purely on the development and maintenance of a freeze lining on its hot face and within the tapping channel to protect the copper and promote the integrity of the
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Heavy Metal Recovery from Slags of Copper Production
2021-8-17 · Furthermore arc furnaces can be used for cleaning of copper slag, which are pro-ducts of the Noranda or Teniente converters. In general the slag product still contains 0.5–1 wt.% of copper and is taken out by a separate tap hole (in Figure 2 at the right-side). The remaining copper content in the slag is determined by the portion of matte,
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Improving Copper Recovery from Production Slags by ...
2013-10-14 · Keywords: slag cleaning, stirring mode, copper slag, submerged arc furnace, stirring reactor Abstract Slags resulting from pyrometallurgical copper processes are important by-products to be controlled in structure and composition. Due to the significant volumes of slag compared with those of the
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Physical chemistry of copper smelting slags and copper ...
investigate the liquidus temperature and the copper losses in slag from the Teniente converter (TC) and from the slag cleaning electrical furnace (EF)
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Operations | Sterlite Copper (A Unit of Vedanta Limited)
Converter Slag is treated in a Slag cleaning furnace for recovery of copper. Blister Copper is further refined by oxidation and then by reduction to approximately 99.6% copper purity in the Anode Furnace, and cast as Copper Anodes. Gases produced at various stages are fully recovered and converted into Sulphuric Acid.
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Kinetics of Copper Reduction from Molten Slags
2014-10-27 · invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate slag cleaning furnace. Reduction of iron oxides from slags using carbon as a reductant in the form of dissolved carbon in iron or graphite has been studied extensively by a large number of researchers. A number of
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Nonferrous Metal Industry - High Temperature Ceramic ...
Copper,Lead,Zinc,Tin,Nickel & Precious Metals Smelting Slag Cleaning Converting Refining SMELTING | SLAG CLEANING | CONVERTING | REFINING Isasmelt Furnace Furnace used mainly for the production of copper and lead.Process consisting of submerging a steel lance called ISASMELT that injects oxygen and gas producing a turbulence in the furnace tub in
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What is a Copper Slag? (with pictures) - InfoBloom
2022-1-31 · Copper slag is a by-product created during the copper smelting and refining process. As refineries draw metal out of copper ore, they produce a large volume of non-metallic dust, soot, and rock. Collectively, these materials make up slag, which can be used for a surprising number of applications in the building and industrial fields.
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Outotec Flash Smelting Technology
2021-8-3 · Outotec Slag Cleaning Slag cleaning at copper and nickel smelters is typically done using an electric furnace process. The design of Outotec slag cleaning furnaces is based on our extensive experience with different slag compositions and understanding of how to optimize the process for maximum recovery.
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Heavy Metal Recovery from Slags of Copper Production
2021-8-17 · Furthermore arc furnaces can be used for cleaning of copper slag, which are pro-ducts of the Noranda or Teniente converters. In general the slag product still contains 0.5–1 wt.% of copper and is taken out by a separate tap hole (in Figure 2 at the right-side). The remaining copper content in the slag is determined by the portion of matte,
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SAIMM
2019-10-29 · copper slag-cleaning electric furnace. The tap-block was designed without any internal refractory; it relies purely on the development and maintenance of a freeze lining on its hot face and within the tapping channel to protect the copper and promote the integrity of the
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Recovery of cobalt, nickel, and copper from slags, using ...
2012-2-7 · Conventional slag cleaning furnaces (typically AC submerged-arc) rely largely on a gravity settling mechanism, whereby the entrained sulphide and metallic droplets are simultaneously collected. Sometimes, a quantity of matte is
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Operations | Sterlite Copper (A Unit of Vedanta Limited)
Converter Slag is treated in a Slag cleaning furnace for recovery of copper. Blister Copper is further refined by oxidation and then by reduction to approximately 99.6% copper purity in the Anode Furnace, and cast as Copper Anodes. Gases produced at various stages are fully recovered and converted into Sulphuric Acid.
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Process and Arrangement for Extracting a Metal from Slag
Copper slag cleaning in AC electric arc furnaces, which is the most common, requires a relatively large furnace because of the time required for reduction and sedimentation which amounts to 3 to 8 hours. It involves a relatively high specific energy consumption due to the extensive specific influence of heat loss.
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Nonferrous Metal Industry - High Temperature Ceramic ...
Copper,Lead,Zinc,Tin,Nickel & Precious Metals Smelting Slag Cleaning Converting Refining SMELTING | SLAG CLEANING | CONVERTING | REFINING Isasmelt Furnace Furnace used mainly for the production of copper and lead.Process consisting of submerging a steel lance called ISASMELT that injects oxygen and gas producing a turbulence in the furnace tub in
Read More
Kinetics of Copper Reduction from Molten Slags
2014-10-27 · invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate slag cleaning furnace. Reduction of iron oxides from slags using carbon as a reductant in the form of dissolved carbon in iron or graphite has been studied extensively by a large number of researchers. A number of
Read More
Kansanshi Copper Smelter: The First Four Years of Operation
2019-1-1 · Kansanshi Copper Smelter began operation in March 2015. The smelter features a single Isasmelt furnace for smelting, one 6-in-line electric furnace for matte-settling and slag-cleaning duties, four Peirce- Smith converters and two rotary anode furnaces.
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Extractive Metallurgy of Copper
2021-2-27 · 10.8. Electric Furnace Cu-from-Slag Recovery 186 10.8.1. Glogo´w 187 10.8.2. Olympic Dam 187 10.9. Cu-in-Slag Limitation of Direct-to-Copper Smelting 187 10.10. Direct-to-Copper Impurities 187 10.11. Summary 188 References 189 Suggested Reading 189 11. Copper Loss in Slag 191 11.1. Copper in Slags 191 11.2. Decreasing Copper in Slag I ...
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