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Recovery of iron from copper slag by deep reduction and
2013年11月20日· Aiming at recovering iron from highironcontent copper slag, this article introduced a combination technology of deep reduction and magnetic beneficiation,2022年9月25日· A large amount of copper smelting slag (CSS) containing valuable elements such as copper and iron is produced through smeltingExtraction and separation of copper and iron from copper
Review on Comprehensive Recovery Valuable Metals and
2023年3月3日· The average bulk chemical compositions of oxides contained in copper slag were listed as 3318 wt% silica (SiO 2 ), 3215 wt% ferrous oxide (FeO), 3193 wt% ironLiterature states that an iron grade that is considered viable for economic bene ciation should be at least 25% and this slag has an iron content above this fi limit, hence posesCharacterization of copper slag for beneficiation of iron and copper
Mechanism of Mineral Phase Reconstruction for
2016年8月2日· The new process is proposed for improving the beneficiation of copper and iron: subjecting the compound additives to molten copper slag obtained by furnaceAiming at recovering iron from highironcontent copper slag, this article introduced a combination technology of deep reduction and magnetic beneficiation, investigated theRecovery of iron from copper slag by deep reduction and
Characterization of copper slag for beneficiation of iron and
2021年4月14日· The relative compositions of Co, Fe, Ni and Cu were 014%, 354%, 028% and 029% respectively This analysis justifies our interest in considering this copperThis paper explores the effects of reductant, flux, reduction temperature and reduction time on the iron content and iron recovery rate of the deep reduction product from copperDeep reduction recovery of iron from copper slag | IIETA
Characterization of copper slag for beneficiation of iron and
2021年4月13日· Our characterization results show that this BCL copper slag is a good secondary source of base metals, especially iron and copper These results reveal that the elemental proportion of iron was around 354% Literature states that an iron grade that is considered viable for economic beneficiation should be at least 25% and this slag has2016年8月2日· To maximize the recovery of iron and copper from copper slag, the modification process by adding a compound additive (a mixture of hematite, pyrite and manganous oxide) and optimizing the cooling of the slag was studied The phase reconstruction mechanism of the slag modification process was revealed byMechanism of Mineral Phase Reconstruction for Improving the
Characterization of copper slag for beneficiation of iron and
2021年4月14日· Similar compounds were found in cement and copper slag, such as Ca, Si, Al, Na, Fe, Mg, etc The high peaks from the XRD image of copper slag indicate the presence of iron silicate fines andIron mainly exists as the magnetite and fayalite, while copper is primarily dispersed in the form of fine matte particles in the copper slag, which is difficult to recover by conventional separation techniques In this paper, the feasibility of an integrated technological route to improve beneficiation of copper and iron components from copper slag through theImproving Separation of Cu–Fe from Copper Slag by Modification
Deep reduction recovery of iron from copper slag | IIETA
Recovery of iron from copper slag by deep reduction and magnetic beneficiation International Journal of Minerals Metallurgy and Materials, Vol 20, No 11, pp 10351041 Jia Y, Xu C Y, Zheng M J, Wang Z J (2010) Beneficiation of unwieldy oolitic hematite by deep reduction and magnetic separation process Journal of University of2013年11月20日· Aiming at recovering iron from highironcontent copper slag, this article introduced a combination technology of deep reduction and magnetic beneficiation, investigated the iron recovery efficiency and optimized the technical conditions When coke powder with 86wt% fixed carbon was used as a reductant, iron was successfullyRecovery of iron from copper slag by deep reduction and
Improving Separation of Cu–Fe from Copper Slag by Modification
2017年2月9日· The physical beneficiation studies showed that compared with unmodified slag, copper grade of the rougher copper concentrate was increased from 643 to 1104%; meanwhile, the copper recovery was kept about 72%, while the corresponding iron recovery was increased significantly from 3240 to 6336%, and the total iron grade of magnetite2020年7月31日· Guo et al improved the beneficiation of copper and iron by modifying the viscosity of a molten copper slag Huang [ 20 ] found that it was beneficial for copper recovery to maintain a cooling rate of less than 3 °C/min in a temperature range of 1000 °C to 1250 °C, in order to obtain a higher copper grade in slag beneficiationEffect of Cooling Rate and Slag Modification on the Copper
Advances in recovery of valuable metals and waste heat from copper slag
2022年10月1日· 211 Reduction This method is employed to reduce the valence of Fe ions in the copper slag, that is, to reduce the Febearing phase to metallic Fe, which is subsequently separated from the Cu slag via magnetic separation or melting Improving the rate of the reduction reaction is crucial in this technique2021年4月14日· Our characterization results show that this BCL copper slag is a good secondary source of base metals, especially iron and copper These results reveal that the elemental proportion of iron was around 354% Literature states that an iron grade that is considered viable for economic beneficiation should be at least 25% and this slag hasCharacterization of copper slag for beneficiation of iron and
(PDF) Improving Beneficiation of Copper and Iron
2016年4月14日· Moreover, matte and magnetite grains in the modified slag aggregated together and grew obviously to the mean size of over 50 μm, resulting in an improvement of beneficiation of copper and iron2021年5月10日· SAF slag, EAF slag, and AOD slag are typical chromiumbearing SSS slags The recovery of chromium from those slags via appropriate methods has significant economic and environmental benefits The physicochemical features of SAF slag, EAF slag, and AOD slag were appraised in this study, including a relatively high content ofRecovery of chromium from chromiumbearing slags produced in
Characterization of copper slag for beneficiation of iron and
iron is present in crystallized form as fayalite (Mg, Fe) 2 SiO4 and chromite(Co,Fe)CrO4 and thishappensduringthematte smeltingprocessor Table 1 Production of copper slag from different regions around the world [7, 8] Regions Copper slag generation/annum in million ton Asia 726 North America 590 Europe 556 South America 418 Africa 1年5月13日· Meanwhile, an economically viable extraction process was proposed to preliminarily utilize the nickel slag based on textural and mineralogical characteristics of the slag, and the magnetic concentrate, assaying about 62% iron grade at over 75% recovery rate, was obtained through the recommended methodMineralogical Characteristics and Preliminary Beneficiation of
Smelting reduction and kinetics analysis of magnetic iron in
2017年5月25日· 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 droplets2017年12月1日· In this process, iron oxide in molten slag is reduced by solid aluminum to form elemental iron (1) 3 (FeO) Recovery of iron from copper slag by deep reduction and magnetic beneficiation Int J Miner Metall Mater, 20 (11) (2013), pp 10351041 CrossRef View in Scopus Google Scholar Mihailova and Mehandjiev, 2010Recovery of metal values from copper slag and reuse of residual
Recovery of iron from copper tailings via lowtemperature direct
2017年9月5日· Currently, the majority of copper tailings are not effectively developed Worldwide, large amounts of copper tailings generated from copper production are continuously dumped, posing a potential environmental threat Herein, the recovery of iron from copper tailings via lowtemperature direct reduction and magnetic separation was2022年4月19日· With the increases in the costs of iron and copper ores, the incongruity between the significant imports of these ores into China and the ongoing accumulation of unused copper slag has greatly increased Even so, there are few lowvalue methods for the utilization of copper slag The present work demonstrates the processing of this materialMinerals | Free FullText | A Thermodynamic and Experimental
Comprehensive review on metallurgical recycling and cleaning of copper slag
2021年5月1日· Molten modification followed by beneficiation is an efficient way to recycle iron and copper through the transformation of iron (copper)bearing phase in the copper slag to satisfy the demand of subsequent beneficiation stages, which mainly include two categories, namely molten oxidation followed by gravity and magnetic separation2016年8月2日· Meanwhile, considering economic and environmental beneficiation optimization, the chemical constituents of copper slag could be modified utilizing various additives, including lime, hematite andMechanism of Mineral Phase Reconstruction for Improving the