Iron Beneficiation From Slag

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Improving Beneficiation of Copper and Iron from …

The results show that under the proper conditions, the copper grade of rougher copper concentrate was increased from 6.43% to 11.04%, iron recovery of magnetic separation was increased significantly from 32.40% to 63.26%, and other evaluation indexes were changed slightly, in comparison with unmodified copper slag.

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(PDF) Steelmaking slag beneficiation by magnetic separator …

Steelmaking slag beneficiation by magnetic separator and impacts on sinter quality . × ... Slag production data for the world are unavailable, but it is estimated that annual world iron slag output in 2013 was around 270 to 320 million tons, and steel slag about 140 to 220 million tons, based on typical ratios of slag to crude iron and steel ...

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Slag Metallurgy and Metallurgical Waste Recycling | JOM

For copper slag recycling, the fourth article, entitled "Mechanism of Mineral Phase Reconstruction for Improving the Beneficiation of Copper and Iron from Copper Slag," by Zhengqi Guo et al., reported on the use of a compound additive in modifying copper slag to recover iron and copper contained within it. They found that the …

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(PDF) Smelting Reduction of Bauxite Residue and Beneficiation …

Smelting Reduction of Bauxite Residue and Beneficiation By-product in View of a Leachable Slag and Pig Iron Production Adamantia Lazou1, Casper Van der Eijk2, Efthymios Balomenos3, Jafar Safarian1 1 Norwegian University of Science and Technology, NTNU Department of Materials Science and Engineering Trondheim, Norway 2 SINTEF …

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Critical review of applications of iron and steel slags for …

The main objectives of our study is to review: (1) the various carbon sequestration techniques; (2) the application of iron and steel slag in carbon sequestration; (3) the applications of iron and steel slag in the environmental remediation, (4) carbon sequestration mechanism of steel slag; (5) mechanisms for environmental remediation …

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Improving Beneficiation of Copper and Iron from Copper Slag …

In the paper, a new technology was developed to improve the beneficiation of copper and iron components from copper slag, by modifying the molten slag to promote the mineralization of valuable minerals and to induce the growth of mineral grains. Various parameters, including binary basicity, dosage of compound additive, modification …

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Mechanism of Mineral Phase Reconstruction for Improving …

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 ...

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Minerals | Free Full-Text | Recovery of Iron from Copper Slag …

Recovery of Iron from Copper Slag Using Coal-Based Direct Reduction: Reduction Characteristics and Kinetics. by. Hanquan Zhang. 1, Chaojie Hu. 1, Wangjie …

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Recovery of iron from copper slag by deep reduction and …

Abstract. Aiming at recovering iron from high-iron-content copper slag, this article introduced a combination technology of deep reduction and magnetic …

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A comprehensive review on the recovery of copper values from copper slag

The beneficiation of copper slag employing gravity concentration and froth flotation, with particular emphasis on different collector systems, has been reviewed thoroughly. Further, the reported pyro- and hydro-metallurgical processing routes have been deliberated. ... which involves the conversion of the complex iron oxides present in the …

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Review on Comprehensive Recovery Valuable Metals and

Guo ZQ, Zhu DQ, Pan J et al (2016) Improving beneficiation of copper and iron from copper slag by modifying the molten copper slag. Metals 6(4):86. Article Google Scholar Lee KS, Jo SK, Shin D et al (2014) Upgrading of iron from waste copper slag by a physico-chemical separation process. J Korean Inst Resour Recycl 23(3):30–36

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Improving Beneficiation of Copper and Iron from Copper Slag …

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 iron ...

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Existing and New Processes for Beneficiation of Indian Iron …

The iron ore industries of India are expected to bring new technologies to cater to the need of the tremendous increase in demand for quality ores for steel making. With the high-grade ores depleting very fast, the focus is on the beneficiation of low-grade resources. However, most of these ores do not respond well to the conventional …

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Crystallization Behavior of Copper Smelter Slag During

Copper slag is composed of iron silicate obtained by smelting copper concentrate and silica flux. One of the most important criteria for the utilization of this secondary resource is the recovery of iron from the slag matrix to decrease the volume of dumped slag. The molten oxidation process with crushing magnetic separation appears …

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Mineralogical Characterization of Copper Slag from …

The contents of iron, copper, lead and zinc in copper slag are 40.21%, 0.79%, 0.24%, and 2.80%, respectively. The mineralogy of copper slag indicates that these valuable elements are difficult to recover by beneficiation processes due to the complicated occurrences. Instead, the pyro-metallurgical processes appear promising in …

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Review on Comprehensive Recovery Valuable Metals and

Fuentes et al. found that copper slag containing iron can be used as an efficient catalyst for methanation of carbon dioxide, most of the iron phase was …

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Full article: Natural radioactivity measurements and …

Abstract. The specific activities of natural radionuclides, 232 Th, 226 Ra, and 40 K, in a Chinese iron beneficiation plant and surrounding soil were analyzed with the high purity germanium gamma (HPGe) spectrometer in this study. Average specific activities of 238 U, 232 Th, 226 Ra and 40 K lower than the Chinese averages. To …

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Characterization of copper slag for beneficiation of iron …

Semantic Scholar extracted view of "Characterization of copper slag for beneficiation of iron and copper" by T.S. Gabasiane et al.

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Production, characterisation, utilisation, and beneficial soil

The iron-making and steel-making industries produce four types of slags, named after the processes from which they are produced (Fig. 2): Blast Furnace Slag (BFS), Basic-Oxygen Furnace Slag (BOFS), Electric-Arc Furnace Slag (EAFS), and Ladle Furnace Slag (LFS), and the type of slag produced is dependent on the desired steel …

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Improving Beneficiation of Copper and Iron from Copper …

In the paper, a new technology was developed to improve the beneficiation of copper and iron components from copper slag, by modifying the molten slag to …

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Mineralogical Characteristics and Preliminary Beneficiation …

The mineral phases of iron in slag are listed in Table 2. Iron mainly exists in the form of magnetite accounting for 75.75% total iron content, which can be enriched by traditional magnetic separation process. ... "Mineralogical Characteristics and Preliminary Beneficiation of Nickel Slag from Reduction Roasting-Ammonia Leaching" Minerals …

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Resource utilization of slag from desulphurization and slag …

The high-sulfur slag skimmed from the molten iron after the desulfurization process is called SDSS. ... 4 kinds of products were obtained through the beneficiation experiment as shown in Fig. 3, namely +2 mm iron particles, (−2+0.3) mm iron particles, iron concentrate and slag tailings. The slag tailings were derived from the combination …

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Extraction and separation of copper and iron from copper smelting slag

After cooling by the slag conveyor, the copper concentrate containing 29.44% copper and 30.39% iron and the iron concentrate containing 46.93% iron and 0.4% copper are obtained by the combined process of magnetic separation and flotation. The process flow is shown in Fig. 3 (Zhou et al., 2014). Another typical case is Finland's …

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Steelmaking Slag Beneficiation by Magnetic Separator and …

Basic oxygen furnaces (BOF) slag is the main problem at all iron and steel factories. About more than 6 million tons/year of BOF slag has been accumulated from the waste stockyards in Turkey.

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Beneficiation: Quality Starts with the Ore — Metals Magazine

By enhancing the quality of lower-grade raw materials through beneficiation, downstream processes also become more viable. Various production routes are available to transform iron ore into liquid steel, as shown in Figure 1. The selected route depends to a large extent on the quality of the iron ore, energy source and related costs.

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Improving Separation of Cu–Fe from Copper Slag by

The physical beneficiation studies showed that compared with unmodified slag, copper grade of the rougher copper concentrate was increased from 6.43 to 11.04%; meanwhile, the copper recovery was kept about 72%, while the corresponding iron recovery was increased significantly from 32.40 to 63.36%, and the total iron grade of …

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Deep reduction recovery of iron from copper slag | IIETA

This 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 copper slag containing 41.47% of iron. Through a series of tests, it is concluded that reduction temperature and reduction time are leading influencing factors on the two ...

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Extraction of copper from copper slag: Mineralogical

Physical beneficiation of the feed slag (~0.6% Cu) in a 2 L working volume flotation cell using sodium isopropyl xanthate resulted in Cu beneficiation up to 2–4% and final recovery within 42–46%. On the other hand, a mixed meso-acidophilic bacterial consortium comprised of a group of iron and/or sulfur oxidizing bacteria resulted in ...

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Driving investments in ore beneficiation and scrap …

The loss of iron units in ore beneficiation is compensated for with higher savings in the EAF together with reduced consumption of slag formers. The benefit to …

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Solving iron ore quality issues for low-carbon steel | IEEFA

The technology combination involves a new DRI melting step called an open slag bath furnace (OSBF). ... for an increasing number of DRI-EAF steelmaking operations and there still will be the need to improve the quality of iron ore via beneficiation, as well as for further magnetite mining project development (which can add to DR-grade ore ...

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A comprehensive review on the recovery of copper values …

In view of the above, attempts were made to minimize iron contamination by subjecting the copper slag to pressure leaching with sulphuric acid [6]. This process …

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Recovery of iron from copper slag by deep reduction and …

Abstract. Aiming at recovering iron from high-iron-content copper slag, this article introduced a combination technology of deep reduction and magnetic beneficiation, investigated the iron ...

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(PDF) Characterization of copper slag for beneficiation of iron …

Characterization of copper slag for beneficiation of iron and copper

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Research articleCharacterization of copper slag for …

Literature states that an iron grade that is considered viable for economic beneficiation should be at least 25% and this slag has an iron content above this limit, hence poses a serious environmental threat upon disposal.

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ASH AND SLAG WASTE DRY BENEFICIATION METHODS

Abstract— Ash and slag waste (ASW) from coal-fired thermal power plants (TPPs), the amounts of which make several tens or even hundreds of millions of tons per annum, require allocation of large land areas for storing them. This waste is a source of pollution emitted into the atmosphere and it poisons the aqueous medium and soil. Ash …

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Recovery of iron from copper slag by deep reduction and …

Aiming at recovering iron from high-iron-content 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 successfully extracted from the …