Method For Processing Copper Dross By Using

A process for removing a layer of substantially finegrain solid material formed by refining and consisting of copper dross upon a bath of molten lead comprising the steps of 2 The process defined in claim 1 further comprising the step of admitting secondary air at a controlled rate into the evacuating gas stream containing the evacuated solids

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A simplified process flowsheet for the recovery of tin from copper dross using roasting and acid leaching process is shown in Fig 3 Copper dross sample can produced two different

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Abstract A complex copper dross containing Bi Pb Cu As and Sb was processed in a 36 m 2 industrialscale oxygenrich sideblown bath smelting furnace OSBF The products were collected and analyzed by chemical and mineralogical methods Industrial statistical data showed that recoveries of Cu Pb Bi and Sb reached 87 96 97 and 60 respectively

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Apr 01 2020 A novel clean and highly efficient vacuum separation technique for the commercial processing of copper dross is introduced in this articleThe industrial treatment of 500 kg copper dross showed that under the conditions of 1523 K 20150 Pa and 5 h of heat preservation three kinds of products can be obtained by vacuum distillation namely crude lead lead sulfide and a CuAsSb alloy

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By comparison the dross recovery using perforated scoops withdraws about 74 kg of material containing only 20 percent copper per metric ton of lead Because the dross is collected at a lower rate and with a higher copper content according to the present invention the costs of handling of processing the dross are substantially reduced

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hydrometallurgical 2 copper production Tables 61 and 62 provide capsule summaries of these processes 1 PyrometaIIurgy IS the extractIon of metaI from ores anD concentrates using chemical reactions at high temperatures 2 Hydrometallurgy is the recovery of metaIs from ores using waterbased solutions As early as 6000 B C native copper

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Jan 19 2018 Typical copper dross the byproduct of lead bullion pyrometallurgical refining for copper removal mainly contains Pb Cu S As Sb and Sn etc In traditional treatment process copper dross

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Jul 01 2014 In order to recover copper nickel or tin as value added product from the dross generated in a copper alloy smelter a process comprising of concentration and separation steps was developed 16 In this study preliminary study on concentration and separation of tin from copper alloy dross with selective dissolution method using nitric acid is

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May 19 2020 Copper dross is a toxic metallurgical residue produced in crude Pb pyrorefining process The process consists of two steps namely liquation and sulfur precipitation during which copper dross is skimmed from the surface of molten lead as solid matter Typically copper dross contains 1020 wt Cu 5570 wt Pb and various metal values such as Bi As Sb

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May 31 2017 Melting of these materials is carried out under a salt flux cover to dissolve the contaminants mostly aluminum oxide and to optimize the recovery of aluminum metal Typically dross and lowgrade scrap are melted in rotary furnaces using a sodium chloride flux with 2 to 5 pct cryolite The salt slag generated ranges up to 35 pct of the melt

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Nov 03 2016 Bessemerisation is a new method and consists in passing a stream of air or oxygen through molten bullion in clay pots by means of clay pipes similar to those used in Millers chlorine process The base metals are oxidised successively in the order zinc iron antimony arsenic lead bismuth nickel tellurium copper

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Oct 19 2020 The oxygenrich bath smelting process of copper dross was simulated using Factsage software It was found that the twostep simulation results agreed better with the industrial data especially in the speiss Bi Pb Sb As and Cu contents in the speiss by twostep simulation differed from the industrial data by 06 wt 08 wt 26 wt 72 wt and 86 wt respectively Twostep

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Oct 19 2020 The sodairon scrap method is the most widely used pyrometallurgical process for copper dross treatment In the process a reverberatory or blast furnace is used as the reactors which have low processing capacity and will cause severe environmental pollution In recent years attempts to apply the oxygenrich bath smelting technology in processing copper dross have occurred in China

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Processes copper mining and production Copper is found in natural ore deposits around the world This page explains copper mining the production route taken from orecontaining rock to a final product that is the highestpurity commercial metal in existence and used in a wide variety of applications essential to modern living

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separation of tin from copper alloy dross by a selective dissolution method using nitric acid was performed The separated tin base precipitate was heattreated to crystalline SnO 2

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separation of tin Sn from copper alloy dross using selective dissolution method was performed The tin in the copper alloy dross did not dissolve in an aqueous nitric acid solution which could

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The beneficiation methods of oxidized copper ore mainly include gravity separatio magnetic separation see details on copper ore processing plant flotation and chemical beneficiation Azurite a kind of copper oxide ore Flotation method Flotation is one of the commonly used mineral processing techniques for copper oxide ores According to

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The invention belongs to the technical field of metallurgy and relates to a method for producing lead bullion by means of copper dross sideblown smelting The method comprises the following steps

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The invention provides a method for separating copper and silver from dross produced by producing the copper from smelting lead The method comprises the following steps of putting solid dross materials produced by producing the copper from smelting the lead under a vacuum condition collecting volatile materials after heating and insulating the solid dross materials for many times and

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The oxygenrich bath smelting process of copper dross was simulated using Factsage software It was found that the twostep simulation results agreed better with the industrial data especially in

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The studied method of alkaline sulfide leaching of copper dross provides backgrounds for developing technology that would allow processing of copper dross with selective arsenic removal from lead

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The valorization of aluminum dross for Al recovery was performed via its mixing with metallic copper to produce AlCu alloys This approach was with the intention of establishing a new smelting process to treat the dross with Cu scrap use To evaluate the high temperature interaction of the materials the wettability of a Cucontaining aluminum alloy with the nonmetallic components of the

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Where copper and copper alloy scraps are very contaminated and unsuitable for simple remelting they can be recycled by other means to recover the copper either as the metal or to give some of the many copper compounds essential for use in industry and agriculture This is the usual practice for recovery of useable copper in slag dross or mill

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