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scrap copper screening machine; tellurium extraction from copper electrorefining slimes patent us; does south africa process raw copper; copper ore processing plant for sale; Random links. ... Heap leaching is an industrial mining process to extract precious metals, copper, uranium, and other compounds from ore via a series of chemical ...

copper anode slimes processing equipment

Patent US4229270 - Process for the recovery of metal values from ... Oct 21, 1980 ... A process for treating anode slimes containing silver in which the silver is ... a. extracting copper, nickel and tellurium from the slimes by an acid leach .... temperatures will necessitate the use of more expensive equipment. Chat Online

Copper Anode Slime Recovery-Copper- - metalcess.com

Copper Electrorefining Plant Design & Configuration. ... Extraction of tellurium. As for hydrometallurgy of copper anode slime, the process is relatively flexible and smelters adjusts the process as per the characteristics of the raw material.

copper electrorefining process - kittycatpetsitting.co.za

Tellurium extraction from copper electrorefining slimes, Aug 17, 1999 Although the copper smelting process used for producing copper anodes is substantially similar throughout the world, it is common knowledge that copper anode compositions vary because the composition of the copper concentrate used as the starting material in,

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.

US Patent for Method of tellurium separation from copper ...

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.degree. and 200.degree.

United States Patent (19) 11) Patent Number: 4,581,064 Apr ...

United States Patent (19) Morrison et al. 54 TREATMENT OF ANODE SLIMES IN A TOP ... copper, lead or nickel electrorefining to recover the precious metals contained therein is disclosed. The pro ... ily to oxidize the copper and tellurium contained in the silver bullion. The soda and …

Copper Refining Electrolyte and Slime Processing ...

Copper Refining Electrolyte and Slime Processing - Emerging Techniques ... P. Claessens and C.W. Whilte, Tellurium extraction from copper refining slimes, US Patent 5939042, Aug. 17, (1999). ... [117] Lindstrom R., Elimination of floating slimes during electrorefining of copper, US Patent 3753877, Aug 21/7, 1973a; Lindstrom R., ...

Europaisches Patentamt European Patent Office EUROPEAN ...

the extraction of tellurium from copper electrorefin- ing slime. Slime produced during conventional copper electrorefining processes normally contain a large variety of elements, including noble metals (Ag, Au, Pt and Pd) as well as significant quantities of selenium, tellurium, copper lead …

EP0528361A1 - Improved method of tellurium separation from ...

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 ...

anode slime - English-French Dictionary - Glosbe

A sediment that settles at the bottom of a copper electrorefining cell; it is rich in silver, gold, selenium and tellurium ... Pa., ISBN 0-87339-367-8 After reviewing the scientific literature on tellurium recovery from copper anode slimes, the authors present their own studies of this topic. Giga-fren. ... en Selective gold extraction from ...

STUDIES ON THE EXTRACTION OF SELENIUM AND TELLURIUM …

Anode slimes obtained from the electrolytic refining of copper contain selenium and tellurium in the form of selenides and tellurides of metals, e.g., copper and silver. The slimes were treated with sulfur under vacuum; selenides and tellurides decomposed to give selenium and tellurium in metallic ...

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 ...

Processing of copper electrorefining anode slime | Request PDF

Processing of copper electrorefining anode slime ... The general method for the extraction of tellurium from the copper refinery anode slime includes acid leaching-cementation-dissolution ...

effect of tellerium in cu electrorefining

Patent US5939042 - 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

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.

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 » …

method electrorefining of copper process - amjstationery.in

Tellurium extraction from copper electrorefining slimes ... Aug 17, 1999· 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. ... FOLLOW US contact info Add.: No.416 Jianye Road, South Jinqiao Area,

(PDF) Extraction of copper and gold from anode slime of ...

Extraction of copper and gold from anode slime of Sarcheshmeh Copper Complex selenium, silver, and tellurium with dilute HNO 3 (2–8 M), recovery and recycling of HNO 3, selective solvent extraction

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 Patent 4094668, 1978. Google Scholar. 12. Lu, D.K ... Processing of copper electrorefining anode slime: A review, Miner ...

Indian Patents. 226232:AN IMPROVED PROCESS FOR EXTRACTION ...

AN IMPROVED PROCESS FOR EXTRACTION OF COPPER, SELENIUM, TELLURIUM AND GOLD FROM ANODE SLIME OF COPPER ELECTROREFINING PLANT: ... Hydrometallurgical process for recovering precious metals from anode slime, U.S.Patent 4,293,332, Oct. 6, 1981, wherein nitric acid leaching of de-copperized slime and precipitation of the dissolved silver as silver ...

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 55 Reads DOI: 10.1002/9781118364833.ch9

copper anode slime - perkinspreschool.com

Apr 20, 2018· processing of copper anode-slimes for extraction of metal values. Mar 5, 2002 Key words: anode slimes, leaching, copper, silver. ... Processing of copper electrorefining anode slime - Taylor & Francis ... tellurium and copper sequentially from the copper anode slime. Contact Us. Processing of Copper Anode-Slimes for - ResearchGate.

Improved estimates for Te and Se availability from Cu ...

Broader Perspectives Improved estimates for Te and Se availability from Cu anode slimes and recent price trends

Tellurium extraction from copper electrorefining slimes ...

Aug 17, 1999· 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.

Slime From Copper Electrorefining Process

Patent US5939042 - Tellurium extraction from copper ... U.S. Pat No. 2,981,595 teaches a process for recovering tellurium from anode slimes produced during copper electrorefining. The process ... copper electrorefining slime. Anode slime behaviour in a laboratory-scale copper ... Anode slime behaviour in a laboratory-scale copper ...

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

This 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% ...

US 4094668 A - Treatment Of Copper Refinery Slimes The ...

[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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Tellurium extraction from copper electrorefining slimes. Patent number: 5939042. Abstract: 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 ...

Improved method of tellurium separation from copper ...

Dec 06, 1995· This invention relates to a method of increasing the extraction of tellurium from copper electrorefining slime. Slime produced during conventional copper electrorefining processes normally contain a large variety of elements, including noble metals (Ag, Au, Pt and Pd) as well as significant quantities of selenium, tellurium, copper, lead and nickel.