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Dec 01, 2017018332Recovery of copper from copper slag by physical beneficiation using froth flotation was studied by Sarrafi et al. 2004. They used mercaptobenzothiazole MBT collector to recover the copper from the ground copper slag and indicated that a slow-cooled slag would be more favorable for better copper recovery.
Apr 01, 2019018332Direct reduction-magnetic separation is an efficient way to recovery iron from copper slag, where iron and copper minerals can be transformed into the desired phases metallic Fe and Cu by direct reducing the mixture of copper slag and carbon as a reductant at about 12001300 176C,.
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magnetic separation of matte in smelter slagSmelting reduction and kinetics analysis of magnetic iron in copper... May 25, 2017...
Waste copper slag is a refractory material with high iron content, but it is difficult to recovery iron minerals from the slag because the iron mainly occurs in fayalite. A new technology of coal-based direct reduction-magnetic separation process was developed to recover iron from the slag assaying 39.85 Fe total and 0.33 Cu.
Jul 29, 2020018332The copper content in the FSF slag is higher than slag from Iranian National Copper Industries Co, Chile Caletone, Indian copper plants and is much lower than that in copper slag.
Since the copper smelting slag contains high content of Fe, Cu and valuable metals, interest in recycling it is increasing. The high Fe content in the copper smelting slag can be used as a high-value element that can replace the foundry pig iron.
To improve the recovery of copper, the viscosity of copper molten slag is decreased by the reduction of magnetic iron, which, in turn, accelerates the settling and separation of copper droplets from the slag.
Iron Recovery from Discarded Copper Slag in a RHF Direct Reduction and Subsequent GrindingMagnetic Separation Process.
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Copper mainly dwells in the slag in the form of bornite, chalcocite, chalcopyrite, and metallic copper. The rest are iron minerals like magnetic iron ore, metallic iron and gangue like fayalite, hedenbergite and amorphous phase matter.
Copper slag is a solid waste that has to be treated for metals recovery. In order to recover iron from copper slag, the technology of carbothermic reduction and magnetic separation was developed.
techniques and magnetic separation. A previous article reported that oatation and magnetic separation methods, using slag, did not result in satisfactory extractions from converter slag 1.
Iron recovery from a lead slag in Henan province was carried out with the technique of coal-based direct reduction followed by magnetic separation. Scanning electron microscopy SEM was used to investigate the transformation of iron-containing minerals and the particle size of metallic iron generated by coal reduction.
About 2.5 million tonnes of copper smelter slag are available in K252re, northern part of Turkey. This slag contains large amounts of metallic values such as copper and cobalt. A representative slag sample containing 0.98 Cu, 0.49 Co and 51.47 Fe was used in the experimental studies.
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