بيت /mintek copper anode slimes
gold, silver, bismuth, copper, lead, and zinc sulfide deposits. There are no primary tellurium mines in the world; most tellurium production comes from the anode slimes generated in metal refining, primarily from copper porphyry deposits. Tellurium is used as an alloying agent in iron and steel, as catalysts, and in the chemical industry.
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"Slimes sludges, from copper electrolysis processes: a complex combination of insoluble compounds produced by precipitation during the Copper electrolytic refining or wining processes. It consists typically of various metals (such as precious metals, copper, antimony, tin, selenium, tellurium, arsenic, lead and nickel), as well as ...
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When copper anode slimes are processed in a precious metal plant the first step is to remove copper by pressure leach in an autoclave. The anode slime is then dried and fed into a Kaldo furnace. The Kaldo is heated and reduction and smelting begins.
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Jun 25, 2019· Owned and operated by China's largest copper producer, Jiangxi Copper Corporation, Guixi smelter is located in Jiangxi province. Copper cathodes from the smelter are traded via the London Metal Exchange under the 'Guiye' brand. Silver and minor metal byproducts are also extracted from copper ore at the refinery.
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Nov 14, 2013· Impurities in anode slimes can be classified into the groups based on their electrochemical potentials and chemical behaviors ( Table 1 ). Copper anode slimes from electrolytic copper refineries are now supplying the source of most of the world's selenium due to its significant contents considering high costs and technical difficulties of extraction from its ores.
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Copper anodic slime which is an insoluble residue of copper electrorefining process contains valuable elements such as gold, silver, selenium and tellurium and is a byproduct of copper ingot production. Copper anodic slime contains % gold approximately. The common methods to extract gold from copper anodic slime are hydrometallurgical processes. The aim of this research is extraction and .
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Arsenic content in copper anode and cell temperature are major factors affecting slime sintering and coalescence, which can improve anode slime adhesion and reduce the amount of suspended slimes. Copper electrorefining tests were conducted in a pilot scale cell made of transparent cell walls. Fluid flow velocities in the gaps between adjacent electrodes were measured. Modeling and simulation of copper .
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In this paper, the solubilities of As, Sb and Bi in copper electrolyte and their existing forms in copper anode slime were studied. It was found that the solubilities of Sb(III), Bi(III) and Sb(V) all increase first and then decrease sharply with the increase in H 2 SO 4 concentration.
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A deposit of insoluble residue formed from the dissolution of the anode in commercial electrolysis. In copper refining, this slime contains the precious metals that are recovered from it.
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selenium and tellurium are obtained from anode slimes formed during the electrolytic refining of copper [1,5]. Copper anode slime is also an important raw material for recovering Au, Ag and platinum group metals. A variety of technologies for treating copper anode slimes have been developed. However, since copper, selenium and
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The chemical analyses of the anode slime is presented in Table 1. It shows that the major constituents in the slime are copper and nickel. The other metals present in significant amounts are selenium and tellurium along with minor amounts of silver, gold, platinum, lead, .
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Scrap copper anode returned to the smelting process. In the first place, the anode section that is dissolved is only the one immersed in the electrolyte. The anode cannot be completely immersed due to the electrical connection with the power source. If the latter is immersed, it would dissolve along with the anode and the process would stop.
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mintek copper anode slimes USA Treatment of copper refinery anode slime ... A process for the removal of lead content in anode slime by subjecting the latter to primary and secondary leach in a medium of an ammonium acetate solution at a ...
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Treatment of copper refinery anode slime Feb 24, 1981 Institute of Nuclear Energy Research A process for the removal of lead content in anode slime by subjecting the latter to primary and secondary leach in a medium of an ammonium acetate solution at a temperature not exceeding
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Palabora Copper (Pty) Limited MSDS –Anode Slimes Date printed: 27 January 2014 Rev: (Latest revision date – 09 September 2013) Effective date: Pre 2008 Any printed document is an uncontrolled document Page 1 of 3 Material Safety Data Sheet Anode Slimes SUPPLIER DETAILS
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