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Recovery of copper from converter slags by flotation / by Edlund and Hussey.
Highlights Cu is efficiently leached from copperzinc waste by H 2 SO 4 solutions with Fe 3+ ions. Fe 3+ ions inhibit zinc and iron leaching from converter slag flotation tailings. Copper and zinc leaching is controlled by chemical reaction on the particle surface.
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Copper loss in the slag of Khatoonabad flash smelting furnace is estimated to be about 1–3 %. At present, the electric slag cleaning furnace is used for the recovery of copper from slag. However, due...
to induce the grain growth of copper matte and magnetite by modifying the molten copper slag. As a result, it is effective to improve recovery and separation of copper and iron from the copper slag; meanwhile, the latent heat energy of the molten slag was effectively utilized and .
Converting is a type of metallurgical smelting that includes several processes; the most commercially important form is the treatment of molten metal sulfides to produce crude metal and slag, as in the case of copper and nickel converting. A nowuncommon form is batch treatment of pig iron to produce steel by the Bessemer process. The vessel used was called the Bessemer converter.
Recovery of cobalt from converter slag of Chambishi Copper ... techniques, such as slag cleaning, slow cooling of the slag followed by milling and flotation, are inappropriate for cobalt recovery from converter slag [7−8].
In the November issue of Teniente Topics, the monthly publication of the Braden Copper Co., Chile, a member of the staff briefly outlines the development of the smelter from 1909 to the present time. Metallurgical difficulties have been many, but were overcome, in spite of being 6000 miles from the base of supplies. The plant now treats 350 tons of concentrate daily, yielding 60 tons of copper ...
In the first flotation stage, as much copper as possible is recovered in a rougher concentrate so that as little as possible goes to the tailings. To increase the copper recovery ... intermediate products (, cement copper or copper(I) oxide precipitates), reverts (, converter slag, refining slag, or flue dusts), and copperalloy scrap.
Laboratory and pilot plant investigations have indicated that copper recoveries of 50% can be achieved with fine grinding and flotation of a copper reverberatory furnace slag. Microscopic and microprobe studies indicate that the recoverable copper is in the form of matte, chalcocite, and metallic copper; the percentage of copper in particles appearing to be copperfree was from – % ...
Abstract. Aiming at the recovery of copper from smelting slag, a flotation approach was studied. It was found that this slag composed of fine particles with complex association and distribution, in which bornite was the main copperbearing mineral after a detailed mineralogy analysis via .
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converters is further treated in the Converter Slag Cleaning Vessel for further cobalt recovery. The final product from the converters, usually refined in Norway, contains highgrade matte which runs at 74% or 92% nickel plus copper (and 20% and 6% sulphur contents) according to customer specification2. Presently around 120 tonnes
The recovery of copper from reverberatory furnace slag utilizing flotation has been studied. The effective factors such as particle size, pH, the amount and type of collector and additives, and flotation time were examined. The effect of cooling rate on flotation behavior of the slag was also studied.
Recovery of Copper and Cobalt from Copper Slags as Selective 389 intervals. By treatment with hot water, recovery of copper and cobalt from the ore mixture was aimed selectively. 2. Experiment Sample Preparation The slag sample used in this investigation is a composite from different levels of the copper slag
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Copper extraction refers to the methods used to obtain copper from its conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.
Abstract: Copper smelter slag and copper smelter slag flotation tailings were leached using sulphuric acid solutions, without or with the addition of either ferric sulphate or hydrogen peroxide. Copper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings.
May 01, 2012· Read "Leaching of copper and zinc from copper converter slag flotation tailings using H 2 SO 4 and biologically generated Fe 2 (SO 4 ) 3, Hydrometallurgy" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
This study was designed to recover copper and cobalt hydrometallurgically from an enriched concentrate of flotation and converter slag. Three slag samples collected from the Ergani Copper Co. of Etibank were studied. In order to convert the copper and cobalt into sulfate compounds, samples were roasted after sulfurization and leached with water.
Laboratory batch flotation tests were conducted on copper converter slags to evaluate the relative merits of recovering copper from slow cooled versus waterquenched slags. Three slags containing,, and percent copper were used. More than 90 percent of the copper was recovered in a ...
Mar 01, 2004· The recovery of copper from reverberatory furnace slag utilizing flotation has been studied. The effective factors such as particle size, pH, the amount and type of collector and additives, and flotation time were examined. The effect of cooling rate on flotation behavior of the slag .
copper flotation from converter slags YouTube. Aug 25, 2016 This is a simple video slideshow, if you want to know more details, please click on our website, we will provide a p. Leaching of copper and zinc from copper converter slag flotation .
Optimization of the flotation of copper smelter slags from Namibia Custom Smelters'' Slag Mill Plant Elias Sipunga A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, in partial fulfillment of the requirements for the degree of Master of Science in Engineering
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