The copper-bearing solution, from the solvent extraction operations, is plated into pure copper cathodes using a process called solution exchange electrowinning (SX-EW). Stainless steel blanks are added to the plating tanks to act as cathodes and copper is plated onto them by electro-chemical deposition. It takes about a week before the cathode is ready to be removed from the tank so the copper can be stripped off the blank. The cathodes are now 99.99% pure copper and ready for product
Processing facilities consist of a copper concentrator, hydrometallurgical plant, copper smelter, sulphuric acid plant, copper and gold/silver refineries. Recent expansions included a Svedala autogenous mill, additions to the flotation sections, two counter-current decantation thickeners, an electric slag-cleaning furnace, a new anode furnace gas-cleaning plant and additional electro-refining cells.
Anti-washout admixtures are used in concrete especially for under water concrete structure. It protect the concrete mix from being washed out under water pressure. It improves the cohesiveness of concrete. This type of admixtures are prepared from natural or synthetic rubbers, cellulose based thickeners etc.
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In spring 2013, Outotec made an agreement with the Russian Copper Company on the design and realization of a new copper concentrating plant in Chelyabinsk, Russia. The order was worth more than EUR 50 million, and the deal included flotation cells, thickeners, analyzers, and automation.