tellurium extraction from copper electrorefining slimes patent us

  • Mineralogical Characterization of Anode Slimes: Part 10

    2018116&ensp·&enspTellurium in Raw Anode Slimes A mineralogical study of the raw anode slimes (that is, the slimes before decopperizing) from the refining of a typical commercial copper anode and three Terich

  • Gold recovery from copper anode slime by means of

    1. Introduction. In the conventional method of copper extraction from its ores and secondary source, at the electrorefining stage, only copper and electropositive metallic impurities such as iron, zinc, and lead are solved as ions and deposited on anode.

  • Recovering selenium and tellurium from copper refinery slimes

    Tellurium is a common minor constituent of copper anode slimes. The distribution of tellurium between the phases during slimes smelting is an important consideration, both in terms of metal quality and the capture of the oxidized tellurium.

  • Effect of tellerium in cu electrorefining

    Effect of tellerium in cu electrorefining Products. Tellurium extraction from copper electrorefining Aug 17, 1999 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 » Get Price.

  • apparatus for copper anodic slime processing

    XSD Sand Washer. The efficient sand washing machine of XSD series is a kind of cleaning equipment of international advanced level for sand and slag pellets, developed on the basis of introducing foreign outstanding technology of the same kind of products.

  • US Patent # 4,293,332. Hydrometallurgical process for

    A hydrometallurgical process for recovering precious metals, such as gold, silver, selenium, and tellurium etc. from anode slime has been developed and tested successfully. The process comprises three major unit operations: leaching, liquidliquid extraction, and reduction.

  • AN IMPROVED PROCESS FOR EXTRACTION OF COPPER,

    The present invention relates to an improved process for extraction of copper, selenium, tellurium and gold from anode slime of copper electrorefining plant. This invention is particularly relates to an improved leaching process of anode slime of copper electrorefining plant in sulphuric acid medium for extraction of valuable metals like copper

  • Improved estimates for Te and Se availability from Cu

    2006516&ensp·&enspImproved estimates for Te and Se availability from Cu anode slimes and recent price trends. Authors. Martin A. Green. Corresponding author. Recovering selenium and tellurium from copper refinery slimes. Tellurium extraction from copper electrorefining slimes. U.S. Patent No. 5,939,042, 17th August, 1999.

  • The treatment of copper refinery anode slimes SpringerLink

    198179&ensp·&enspW.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).

  • cost of copper electrorefining anode slime processing

    Patent US4293332 Hydrometallurgical process for recovering . Oct 6, 1981 The decopperized anode slime is first leached with nitric acid at an elevated This selenium, tellurium, copper and other impuritiescontaining chloride may then be recovered from the residue by smelting and electrorefining.

  • Program Copper 2016

    2016116&ensp·&enspTellurium is recovered in the form of tellurium dioxide from copper telluride obtained from the decopperizing stage and from the tellurium residue obtained from the gold extraction raffinate by reduction with sulfur dioxide gas.

  • method recovering tellurium macimpianti

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

  • Europâisches Patentamt European Office Patent Office

    201871&ensp·&enspPatent Office ® Publiion number: 0 049169 opéen des brevets B1 they generally contain significant amounts of copper, selenium, tellurium, silver, gold and some platinum group metals along with nuisance elements such as arsenic, metal is electrorefined for silver recovery, and the slimes obtained in electrorefining of silver can be

  • Chapter L HYDROMETALLURGY & SOLUTION MINING

    201359&ensp·&ensp1347 23 rd International Mining Congress & Exhibition of Turkey • 1619 April 2013 ANTALYA ABSTRACT The effect of temperature on the rate of gold dissolution from copper anode slime by chloride leaching was investigated.

  • (2002) Sanyal Some Studies on Sulfuric Acid Leaching of

    New hydrometallurgical process of copper anode slimes at Saganoseki Smelter and Refinery. Extraction of selenium and tellurium from copper electrolytic slimes. W.

  • Copper Refining Electrolyte and Slime Processing

    [117] Lindstrom R., Elimination of floating slimes during electrorefining of copper, US Patent 3753877, Aug 21/7, 1973a Lindstrom R., Elimination of floating slimes during electrorefining of copper, US Patent 3753111, Aug 28, 1973b.

  • copper anode slimes processing equipment

    copper anode slimes processing equipment. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any sizereduction requirements including quarry, aggregate, and different kinds of minerals.

  • Analytics for US Patent No. 4256912, Removal of soluble

    A method for the removal of soluble tellurium compounds from vicinal glycol ester solutions, prepared with telluriumhalide ion alyst sys Trigger Patent Buddy

  • Europâisches Patentamt European Office Patent Office

    201871&ensp·&enspPatent Office ® Publiion number: 0 049169 opéen des brevets B1 they generally contain significant amounts of copper, selenium, tellurium, silver, gold and some platinum group metals along with nuisance elements such as arsenic, metal is electrorefined for silver recovery, and the slimes obtained in electrorefining of silver can be

  • US Patent for Tellurium extraction from copper

    1998727&ensp·&enspThe 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.

  • US5939042A 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 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. The excess of selenium and/or sulphur allows the formation of Ag 2 Se or Ag 2 S, which remains

  • Anode Slime From Copper Electrorefining Process

    of tellurium from copper electrorefining 2 to 2 from copper electrorefining slimes. The process uses bearing copper refinery anode slime Effect of thermal treatment of copper anodes on

  • Improved estimates for Te and Se availability from Cu

    You have free access to this content Improved estimates for Te and Se availability from Cu anode slimes and recent price trends

  • Recovery of Silver and Gold from Copper Anode Slimes

    2014911&ensp·&enspCopper anode slimes are precipitated at the bottom of copper electrorefining cells during copper electrolytic refining. 1, 2 Besides containing precious metals such as silver and gold, the slimes can also contain copper, selenium, tellurium, and several platinum group metals.

  • 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. It is performed under an atmosphere of oxygen which allowed for a cyclic utilization of nitric acid.

  • Pelletizing sulfation of anode slimes US Patent

    Pelletizing sulfation of anode slimes Abstract. Anode slimes from an electrorefining operation are fed, together with sulfuric acid, into a heated pelletizer wherein a sulfation reaction occurs, simultaneously with pellet formation, to solubilize copper, nickel and tellurium contained in the slimes.

  • The treatment of copper refinery anode slimes [PDF

    Because copper producers are in terested in the behavior of impurities in copper electrorefining and in the man ner in which different impurities can affect the quality of copper hodes, the numerous processes related to the treat ment of anode slimes have been reviewed and assessed,! complementing the re cent work of Hoffmann2 and Zarate

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