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Electrowinning is the oldest industrial electrolytic process. The English chemist Humphry Davy obtained sodium metal in elemental form for the first time in 1807 by the electrolysis of molten sodium hydroxide.. Electrorefining of copper was first demonstrated experimentally by Maximilian, Duke of .

The impure anode copper contains both base and noble metals as impurities. The base metals dissolve from the anode with copper and report to the electrolyte. The noble metals do not dissolve and form anode slimes. The anode slimes formed can either adhere to the anode surface or fall to the bottom of the refining cell (Davenport et al. 2002). The

Oxidative and/or flux smelting for removal of base metals (lead, copper, zinc, etc.). Detoxification of flue dust, e.g. removal of arsenic. Dehalogenation of electric arc furnace dust (removal of chlorine and fluorine). Processing of anode slimes from electrolytic refining. Fuming reactions for antimony, bismuth, etc.

PHYSICAL SPECIFICATIONS. ICC Copper anode slime. Colour - Black. Size - Powdery material

Jul 18, 2013· Anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper. It generally contains Cu, Ni, Se, Te, Ag, Au, platinum group metals (PGM), Pb, Ba, Fe, etc. Owing to the presence of valuable metals and metalloids in the anode slime.

mintek copper anode slimes. Recovering selenium and tellurium from copper refinery slimes. Elemental copper in slimes arises from two sources: fragments ofthe anode which are dislodged during the refining process and report in the slimes, and cuprous oxide present in the anode which reacts with sulfuric acid in refining electrolyte dis ...

A Novel Process For Recovery Of Te And Se From Copper Slimes Autoclave Leach Solution Shijie Wang, Brad Wesstrom and Jean Fernandez Phelps Dodge Mining Company El Paso Operations 850 Hawkins Blvd., El Paso, TX 79915 In pressure oxidation leaching of copper anode slimes, more than 65% of the tellurium is co-extracted during decopperizing.

Extraction of copper and gold from anode slime of Sarcheshmeh Copper Complex by M.H. Dehghanpoor*, M. Zivdar*‡, and M. Torabi† A hydrometallurgical route was developed to extract metals such as gold, silver, copper, and selenium from anode slime from Sarcheshmeh Copper .

EP0020826A1 EP79301148A EP79301148A EP0020826A1 EP 0020826 A1 EP0020826 A1 EP 0020826A1 EP 79301148 A EP79301148 A EP 79301148A EP 79301148 A EP79301148 A EP 79301148A EP 0020826 A1 EP0020826 A1 EP 0020826A1 Authority EP European Patent Office Prior art keywords gold tellurium selenium process silver Prior art date 1979-06-14 Legal status (The legal .

What Kind of Anode Slimes Can I Recycle? You can send us the following anode slimes scrap to be refined and recycled: Materials that are by-products of copper refining and smelting. Anode Slimes usually contain high concentrations of silver, as well as gold, platinum, palladium and possibly rhodium

Platinum group elements are recovered from anode slimes produced during the refining of copper. Emphasis must be placed on the term "refining" of copper. Slimes are not produced at the smelter stage of copper production. In addition, the process must be electrolytic and not fire refining.

Anode slime is a byproduct from copper or lead electro-refining process. The copper/lead anode slime usually contain As, Sb, Bi and precious metals like gold and silver. Smelter of anode slime is most likely divided into two groups by the two different recovery processes based on its property and treatment capacity, i.e. pyrometallurgy and ...

Anode Slime Precious Metal Recovery Au Ag Recycle Reference Project Overview T his proposal is designed to recover precious metal Au, Ag, Pd, and Pt from copper anode slime. l Anode slime feeding capacity: 30-40kg/d; l Anode slime chemical composition: Au Ag Pt Pd CuO H 2 O 0.8% 8% 0.4% 0.8% 60% 30% l Final products: Gold ingot, Silver ingot, Pt powder, Pd powder.

Whereas the lead anode slime is firstly treated with chloride leaching and then the leaching residue can be mixed with de-selenium and de-coppered copper anode slime for further recovery. The chloride leaching solution of lead anode slime is used to recover Cu/ Bi/Sb separately.

The most effective hydrometallurgical processing of anode slime is based on a chlorination route. However, it requires special attention with respect to pollution problems and construction materials. To minimize the problems, a new hydrometallurgical approach was pursued for the recovery of valuable metals and metalloids from copper electrorefining anode slime.

Umicore Precious Metals Refining offers its PM-refining services to many copper smelters worldwide. Typically Umicore can process: anode slimes, a complex combination of precious metals and impurities as Sb, Bi, As, Sn flue dust containing precious metal

At the anode, copper and less noble metals dissolve. More noble metals such as silver, gold, selenium, and tellurium settle to the bottom of the cell as anode slime, which forms a salable byproduct. Copper(II) ions migrate through the electrolyte to the cathode.

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).

May 25, 2017· The present invention provides a process for extracting noble metals from anode slime, comprising: mixing sodium carbonate, quartz and coke powder and impurity-removed anode slime, and subjecting the mixture to smelting and converting to obtain alloys of noble metals.

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 80° C. Whereby lead dissolution is maximized and other metals are minimized. Separate the leach solution from the undissolved slime residue, crystallize lead from the separated leach solution and recover the ...

During the electrolysis process pure copper is deposited on cathode plates and impurities which are soluble fall to the bottom of the cell as anode slimes or sludge. Precious metals (Ag, Pt, Pd), can be extracted from the anode sludge created by the electro-refining process. Copper concentrates can also contain precious metals like gold and silver.

To properly understand the homogeneous co-precipitation mechanism in the copper electrolyte, the classification of arsenic, antimony and bismuth in copper anode slimes is necessary. In copper anode slimes, arsenic, antimony and bismuth and other impurities are found in .

The Bingham Canyon Mine, more commonly known as Kennecott Copper Mine among locals, is an open-pit mining operation extracting a large porphyry copper deposit southwest of Salt Lake City, Utah, in the Oquirrh Mountains.The mine is the largest man-made excavation in the world and is considered to have produced more copper than any other mine in history – more than 19 million tons.

Aug 14, 2019· Anode slimes product is a by-product of the electro-refining process and consists of the insoluble impurities from the anode that fall to the bottom of the refining cell. The anode slimes are recovered from the refining cells, are dried in an oven and processed by a metals by-product plant.
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