Electrorefining technology converting spent commercial nuclear fuel into metal.
Electrowinning, also called electroextraction, is the electrodeposition of metals from their ores that have been put in solution via a process commonly referred to as leaching. Electrorefining uses a similar process to remove impurities from a metal. Both processes use electroplating on a large scale and are important techniques for the economical and straightforward purification of non-ferrous metals. The resulting metals are said to be electrowon.
In electrowinning, an electrical current is passed from an inert anode through a leach solution containing the dissolved metal ions so that the metal is recovered as it is reduced and deposited in an electroplating process onto the cathode. In electrorefining, the anode consists of the impure metal (e.g., copper) to be refined. The impure metallic anode is oxidized and the metal dissolves into solution. The metal ions migrate through the electrolyte towards the cathode where the pure metal is deposited.[1] Insoluble solid impurities sedimenting below the anode often contain valuable rare elements such as gold, silver and selenium.
^United States Congress Office of Technology Assessment (1988). Copper, Technology & Competitiveness. DIANE Publishing. pp. 142–143. ISBN 9781428922457.
Aluminum Electrowinning and Electrorefining with Ionic Liquids How Hydrometallurgy and the SX/EW Process Made Copper the "Green" Metal Copper Electrowinning...
Solvent extraction and electrowinning (SX/EW) is a two-stage hydrometallurgical process that first extracts and upgrades copper ions from low-grade leach...
nickel and ammonia with hydrogen affords nickel metal as its powder. Electrowinning is a particularly selective if expensive electrolysis process applied...
leaching. Pregnant leach solution is used in the solvent extraction and electrowinning (SX/EW) process. The portion of an original liquid that remains after...
The IsaKidd Technology is a copper electrorefining and electrowinning technology that was developed independently by Copper Refineries Proprietary Limited...
electro-refining" techniques. Crushing, leaching, solvent extraction, and electrowinning are techniques used in hydrometallurgy.[citation needed] Specifically...
flotation of the ore, roasting, and final extraction using electricity (electrowinning). Zinc is an essential trace element for humans, animals, plants and...
electromagnetic energy in warfare Electroweak interaction, in physics Electrowinning, an electro-chemical process Entomological warfare, a type of biological...
dissolving zinc oxide into sulfuric acid, purifying the solution and electrowinning. In the chemical industry, acids react in neutralization reactions to...
000,000 kg) of copper a year. ASARCO conducts solvent extraction and electrowinning at the Ray and Silver Bell mines in Pima County, Arizona, and Pinal...
is leaching the metal matte into a nickel salt solution, followed by electrowinning the nickel from solution by plating it onto a cathode as electrolytic...
Commercially, electrolytic cells are used in the electrorefining and electrowinning of several non-ferrous metals. Most high-purity aluminum, copper, zinc...
alkaline solution of cyanide. The elute solution passes through an electrowinning cell where the gold metal is deposited. The solution then passes back...
fluoroethylene, the monomeric precursor to polyvinyl fluoride. The electrowinning of aluminium relies on the electrolysis of aluminium fluoride in molten...
to separate the ores from the rock. Froth flotation, leaching, and electrowinning are the most common types of chemical separation. Froth flotation uses...
with important minor constituents, are extracted using electrorefining/electrowinning. The resulting mixture keeps the plutonium at all times in an unseparated...
produced by leaching manganese ore with sulfuric acid and a subsequent electrowinning process. A more progressive extraction process involves directly reducing...
particular attention paid to titanium. While some metals can be refined by electrowinning at room temperature, "there is a strong chance of attack of the refractory...
metal from an aqueous metal salt solution produced by hydrometallurgy (electrowinning). Electrometallurgy is the field concerned with the processes of metal...
common types of electrometallurgical processes are electrowinning and electro-refining. Electrowinning is an electrolysis process used to recover metals...
onto the cathode in a layer. The terms for this are electroplating, electrowinning, and electrorefining. When an ion gains or loses electrons without becoming...
producing sulfuric acid. Since its invention, solvent extraction and electrowinning (SX/EW) production of copper produces an increasing share of the worldwide...
6669836". Retrieved 2010-07-17.[permanent dead link] "Sodium Production by Electrowinning". corrosion-doctors.org. Retrieved 2007-12-20. Pauling, Linus, General...
the aluminium smelting industry. Rectiformers are commonly found in electrowinning operations, where a direct current is required to convert base metal...
electroplating to produce printing plates Gilding, electroplating, anodizing, electrowinning – depositing a material on an electrode Isoelectric focusing a.k.a....
countries are believed to have unrecorded production of mercury from copper electrowinning processes and by recovery from effluents. Because of the high toxicity...
bismuth cathode, or a solid aluminium cathode. As an alternative to electrowinning, the wanted metal can be isolated by using a molten alloy of an electropositive...
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