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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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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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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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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The HC tailings slag pendulum grinding mill can process iron ore beneficiation tailings into fine powder of 80-400 mesh. This equipment has the popular HC1700 model, which has a large number of fans in …
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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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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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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, …
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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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Beneficiation of iron ores to remove alumina, silica, kaolinite, phosphorous, and calcite. ... (slag former) content. Saprolite ore is dewatered and calcined with carbon to produce a partially reduced feed for an electric furnace. Ferronickel is produced along with significant slag from the electric furnace. Small amounts of matte are also ...
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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 …
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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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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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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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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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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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Beneficiation of iron ores is an increasingly important topic, as a result of diminishing reserves of high-grade ores, and the increasing prevalence of mining wetter ores from below the water table. ... and fuel (coke) required for melting and separation of the gangue (as molten 'slag') in the blast furnace [1]. Iron ore beneficiation ...
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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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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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Erratum to: Mechanism of Mineral Phase Reconstruction for Improving the Beneficiation of Copper and Iron from Copper Slag. Erratum; Published: 23 August 2016 Volume 68, page 2713, (2016) ; Cite this article
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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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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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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 …
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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 35.4%. Literature states that an iron grade that is considered viable for economic beneficiation should be at least 25% and this slag has …
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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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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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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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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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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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Characterization of copper slag for beneficiation of iron and copper
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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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