tellurium extraction from copper electrorefining slimes patent us[Click to learn more]

copper electrorefining

US5939042A - Tellurium extraction from . The present invention is concerned with a method for the substantially selective extraction of tellurium from copper electrorefining slimes. The …

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Dissolution Optimization of Copper from Anode Slime in ...

In the present study, aimed at the extraction of copper and the concentration of precious metals in anode slime, the optimum process conditions were sought for the dissolution anode slime from the Sarkuysan Co. in Turkey. The blade number of the mechanical stirrer, reaction temperature, O2 flow rate, stirring speed, acid concentration, solid-to-liquid ratio, reaction period, and roasting ...

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Recovering selenium and tellurium from copper refinery slimes

In all cases, tellurium removal from slimes by acid pressure leaching with oxygen, using copper refinery electrolyte augmented with additional sulfuric acid as required, is recommended for tellurium extraction.

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copper anode slimes processing equipment

PROCESSING OF COPPER ANODE-SLIMES FOR EXTRACTION … PROCESSING OF COPPER ANODE-SLIMES FOR EXTRACTION OF METAL VALUES Received Ma, reviewed, accepted Processing of anodic slimes from an Egyptian copper electrorefining plant, exhibiting high contents of copper, lead, tin and silver has been presented. The proposed hydrometallurgical process

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Process for the recovery of selenium from minerals and/or ...

 · Process for the recovery of selenium from minerals and/or acidic solutions ... Tellurium extraction from copper electrorefining slimes: 17: Stafiej et al. ... For the recovery 131 of the elemental tellurium see copending patent application Ser. No. 12/494,081, ...

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The treatment of copper refinery anode slimes | SpringerLink

W.C. Cooper, “A Review of Processes for the Treatment of Copper Refinery Anode Slimes with Particular Reference to Selenium Behaviour and Recovery,” final report on project no. 169/02/87, Energy, Mines and Resources Canada, CANMET, Ottawa, Canada K1A 0G1 (August 1989).

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Extraction of tellurium from lead and copper bearing feed ...

Extraction of tellurium from lead and copper bearing feed materials and interim metallurgical products – A short review ... J. Hait, R.K. Jana, S.K. alProcessing of copper electrorefining anode slime: a review. Metallurgy (Trans. Inst. Min. Metall. C), 118 (4) (2009), pp. 249.

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anode slime from copper electrorefining process

US5939042A - Tellurium extraction from copper ... The present invention is concerned with a method for the substantially selective extraction of tellurium from copper electrorefining slimes…

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Extraction of selenium from copper anode slimes in a ...

A new method was proposed for extracting selenium from copper anode slimes with a low concentration of nitric acid in a sealed sulfuric acid leaching system. ... J. C. and Borham, B.M., Treatment of copper refinery slimes, US Pat8, 1978. Google Scholar. 12. Lu, D.K ... Processing of copper electrorefining anode slime: A review, Miner ...

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Tellurium extraction from copper electrorefining slimes ...

 · The present invention is directed to the substantially selective extraction of tellurium from tellurium-containing materials, and more particularly copper electrorefining slimes. Conventionally, a slurry of the shines is prepared in diluted sulphuric acid, and leached in an autoclave to extract certain metal values, including silver and tellurium.

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Copper Anode Slime

Copper Anode slime is collected from electrolytic cell to recover precious metal. Metalcess offers solution of TBRC smelting, lead distillation and gold metal extraction. ... Refining dross is the result of lead refining process where impurities like copper, tellurium, arsenic-antimony-tin, silver, zinc and bismuth in sequence from lead bullion ...

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treatment of anode slime from copper electrolysis

The anode slime produced in the refining of copper by electrolysis contains that part of the anode which is insoluble in electrolysis and contains varying quantities of copper, nickel, silver, gold, selenium, tellurium, arsenic, sulfur, lead, silicates, etc., depending on the anode.

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Recovery of tellurium from high tellurium-bearing ...

Recovery of tellurium from high tellurium-bearing materials by alkaline pressure leaching process: Thermodynamic evaluation and experimental study ... paper focuses on the recovery of tellurium from high tellurium-bearing material with similar compositions to the anode slime of copper electrorefining, containing about 50% of copper and 34% of ...

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EP0528361A1

A method of increasing the extraction of tellurium from copper electrorefining slime comprises leaching the slime with dilute sulphuric acid in a reactor under a partial oxygen pressure of up to 150 psi and at an elevated temperature between about 100 and 200°C until copper, nickel and substantially all of the tellurium is dissolved, thereby forming a leach slurry, and contacting the slurry ...

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Tellurium Recovery during Dore ...

in Anode Slimes produced during Copper Electrorefining; Recycling PM Scrap to DORE Metal : Tellurium occurrence in Precious Metals Operations ... Recycling PM Scrap to DORE Metal : Controled Tellurium Extraction during Silver Refining. ... CONTACT US. GET DIRECTIONS

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Detellurization Process of Copper Anodic Slimes Leach ...

Detellurization Process of Copper Anodic Slimes Leach Liquor by Cementation of Tellurium Using Elemental Copper Chapter · May 2012 with 67 Reads DOI: 10.1002/9781118364833.ch9

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US 4094668 A

[00018] As shown in FIG. 1 of the drawings, the raw slimes recovered from the copper refining cells are first subjected to an acidic leach operation at an elevated temperature and under moderate oxygen pressure to dissolve and extract the copper content and a portion of the tellurium content of the slimes.

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Bacterial recovery and recycling of tellurium from ...

EPR3 for recovery of tellurium from devices and autoclave slime. Normally an effluent from copper and tellurium production, autoclave slime is a potential source for tellurium recovery using bacteria. To evaluate EPR3's interaction with the slime, a similar set of experiments to metallic tellurium and tellurium dioxide were performed.

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anode slime

Selective gold extraction from copper anode slime with an alcohol. ... A sediment that settles at the bottom of a copper electrorefining cell; it is rich in silver, gold, selenium and tellurium ... Pa., ISBN 8 After reviewing the scientific literature on tellurium recovery from copper anode slimes, the authors present their own ...

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Anode Slime From Copper Electrorefining Process

Program Session List. Resource metals and other impurities in the anode. In the electrorefining process, of slime particles during copper electrorefining . US5939042A Tellurium extraction from copper . of tellurium from copper electrorefining 2 to 2 from copper electrorefining slimes. The process uses bearing copper refinery anode slime

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Tellurium Extraction From Copper Electrorefining Slimes ...

U.S. Patent extraction from copper electrorefining slimes. tellurium extraction from copper electrorefining slimes . Extraction of Copper and Gold from Anode Slime of During the electrorefining of copper, leaching copper, selenium, and tellurium. Mineralogical characterization of anode slimes extraction, US patent

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US Patent # 4,115,512. Method for removing arsenic from ...

United States Patent ... Method for removing arsenic from copper and/or nickel bearing aqueous acidic solutions by solvent extraction ... relates to a method for removing arsenic from copper and/or nickel bearing aqueous acidic solutions by solvent extraction. In the electrorefining of copper to produce cathodes of high purity from impure anode ...

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-method of recovering metallic tellurium-

Patent US5939042 - Tellurium extraction from copper ... The present invention is concerned with a method for the substantially selective extraction of tellurium from copper electrorefining slimes. The method comprises ...

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The perculiarities of tellurium behaviour in the process ...

The authors present the results of the study of tellurium behavior in the process of slime pressure oxidizing leaching, produced by copper electro refining at JSC «Uralelectromed», and having complicated chemical and phase composition. There was studied the influence of temperature, oxygen partial pressure and the conditions of mass exchange in the unit on the kinetics of tellurium recovery.

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Recovery of Gold and Silver from Copper Anode Slime ...

This study has shown that gold and silver can be recovered from a complex anode slime containing copper, selenium, and tellurium, but a carefully planned leaching procedure is required. To extract the gold with thiourea, it is necessary to first remove the copper, selenium, tellurium, and most of the silver from the mixture. Once these elements are removed, the gold and most of the remaining ...

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Rytes Separation From Anode Slimes

A process for the separation of deleterious elements such as selenium, tellurium, lead, bismuth, arsenic, silicon, nickel, sulphur, antimony and copper from anode slimes originating from copper, lead or nickel electrorefining, and treatment of said anode slimes to recover the precious metals contained therein, comprising the steps of;

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US5939042A

The present invention is concerned with a method for the substantially selective extraction of tellurium from copper electrorefining slimes. The method comprises maintaining a molar ratio Ag/Se, Ag/S or Ag/Se+S at a value of about 2 or less in the slimes during leaching thereof in an autoclave.

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Effect of tellerium in cu electrorefining

Effect of tellerium in cu electrorefining Products. ... Tellurium extraction from copper electrorefining ... ... A method for extracting tellurium from copper electrorefining slimes ... By the action of current applied to the anode, the copper dissolves and is... More details » …

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Hydrometallurgical technologies of copper and nickel ...

The copper electrolytic slime processing technology (copper extraction, gold and selenium leaching, silver leaching, tellurium dissolution) was developed on the slimes of Almalyk mining and metallurgical combine. Copper extraction was held in sulfuric acid solution …

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Dissolution Optimization of Copper from Anode Slime in ...

Dissolution Optimization of Copper from Anode Slime in H 2 SO ... aimed at the extraction of copper and the concentration of precious metals in anode slime, the optimum process conditions were sought for the dissolution anode slime from the Sarkuysan Co. in Turkey. ... A new approach for the treatment of copper electrorefining anode slime based ...

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