Large amounts of solid wastes are produced in copper and aluminum smelting processes, which not only cause losses of valuable resources but also threaten …
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The original steel slag was individually and uniformly mixed with 0, 4, 6, 10, and 18 wt.% Al 2 O 3 (relative to the mass of the original steel slag) in a sequential manner. 50 g of the mixed slag was loaded into a magnesia crucible. In converter smelting, magnesia refractory materials are the preferred choice for lining the converter due to …
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Arslan and Arslan (2002) used sulfated roasting and water leaching processes to treat converter slag. The metal minerals such as Cu and Fe were transformed into water-soluble sulfate during roasting. The metal recoveries of Cu and Fe reached 88% and 83% respectively. ... but there are problems of equipment corrosion …
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CO 2 (g)+C=2CO (g) ~Go=338016-344.38T (1) FeO (1)+C=Fe (l)+CO (g) ~Go=141660-139.45T (2) According to the thermodynamic calculation re sults, the green CO 2 slag splashing technique was feasible in the converter under the steelmaking tem perature. In the thermodynamic calculation, the initial values were from the commercial …
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High pressure oxidative acid leaching (HPOXAL) was employed to extract valuable metals from nickel converter slag. Parameters such as sulfuric acid concentration, temperature, liquid/solid (L/S) ratio, leaching time, oxygen partial pressure and particle size were investigated to optimize the solubility of metal values and improve …
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Slag refinement and its treatment were conducted by the SUMZ scheme. The tailing copper content was 0.57–0.6%, and extraction into to con-centrate with a change in heat …
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Liu (Liu et al. 2016b) investigates the leaching process of converter vanadium slag with electro-oxidation technology, and the leaching efficiency is increased significantly within the electro ...
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Slag Management: Product marketing in the best interests of the customer. We have taken a close look at the potential uses of our products and hence the standards they need to meet. Constant contact with our customers, …
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The converter slag used in this study was supplied by Pohang Iron and Steel Co. Ltd., Pohang, Korea. The chemical composition and physical properties of the converter slag are shown in Table 1. The slag was used in the experiments as a powder milled to a grain size of 0.075–0.015 mm (100–200 ASTM mesh, Slag #100−200). A …
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The high roasting temperature and low leaching efficiency of vanadium from vanadium-bearing converter slag are regarded as the main factors significantly influencing the application of calcification roasting–acid leaching processes in the cleaner production of vanadium. In this study, a mechanical activation treatment was performed to enhance …
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The model calculated the required matte treatment capacity and the required number of converters, resulting to four vessels, including one under relining. In the first stage, the slag blow, process air with limited oxygen enrichment, 24.5% O 2, was used to produce white metal with 0.3% Fe. The slag, with iron to silica ratio of 1.0 and 10.2% Cu ...
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13 rowsThe converter slag from both the nickel and copper converting, which contain approximately 2% Ni, 1.5% Cu, 40% Fe, and 25% SiO2, are returned to the furnaces to …
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As part of the overall Copper Smelter expansion activities at Mount Isa Mines from 1970 - 1975, a decision was made to open circuit the converter slag from the Smelter and treat this product by flotation. This paper describes the technical aspects of plant operating and reagent practices employed, with particular emphasis on the large scale milling of this …
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Equipment and procedure. All leaching tests were conducted in a vertical zirconium autoclave of 2-L volume (Model GSH2 Reactor, Weihai Chemical Machinery Instrument Company, China) equipped with a magnetic stirrer having a digital controller unit. ... Co-treatment of converter slag and pyrrhotite tailings via high pressure oxidative …
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With conversion of copper smelting plants to autogenic melting the problem arises of separate treatment of converter slag (CS). Almost all plants converted to autogenic melting use slag flotation [1,2,3,4,5,6,7,8,9,10].Sometimes they float a mixture of furnace and converter slags after granulation [] of a mixture of CS and original ore in …
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Chalcocite was mixed with a small amount of copper slag and converting, and the resulting converter slag was collected, crushed and ground. The chemical composition is listed in Table II.The prepared converter slag samples were remelted at the same temperature and holding time under different oxygen partial pressures to …
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Top Blown Rotary Converter (TBRC)Pyrometallurgy Top Blown Rotary Converter (TBRC) TBRC is an advanced smelting equipment for treating anode slime, WEEE, nonfer. ... Equipment To Treat Converter Slag T13:01:35+00:00 Who we are > Products > Cases > Solutions > Contact Us > Solutions. Copper ore beneficiation plant;
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The high-end application of converter steel slag in cement-based building materials is still facing the challenge due to its poor reactivity. In this study, semi-dry carbonation treatment of converter steel slag powder was investigated to improve the reactivity of slag powder and to sequestrate CO 2. The properties of semi-dry carbonated ...
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Converter copper slag can be viewed as an important secondary resource for valuable metals, considering its high commercial value. The current research investigates the recycling of copper by a combination of theoretical and experimental methods. Based on a modified Stokes equation, it was determined that copper droplets in the molten slag …
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Large amounts of solid wastes are produced in copper and aluminum smelting processes, which not only cause losses of valuable resources but also threaten the ecology and environment. In this study, a reduction–sulfurization smelting method was used for recovering Cu and Co from converter slags by using spent pot lining (SPL) as the …
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An alternative PCC production method named Slag2PCC, where steel converter slag is used as a calcium source instead of limestone, has been recently developed at Finnish universities. When these methods are compared by means of a cradle-to-gate life cycle assessment (LCA), it is confirmed that the Slag2PCC approach has …
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equipment and the addition of new flotation capacity. ... Jameson Cell on converter slag treatment exceeded the maximum. design tonnage by some 34 per cent. On RHF slag treatment it.
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Converter slag assaying 3.7 per cent Cu is produced by Mount Isa copper smelter at a rate of up to 180 000 tonnes per annum.Priority is given to the processing of ore, however concentrator capacity periodically exceeds that of the mine and the opportunity is taken to treat converter slag. It is processed in batch campaigns, typically through the Copper …
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Recycling of copper scrap greatly reduces natural resource exploration as an alternative source of copper metallurgy and has big advantage in investment, production cost and off-gas treatment, thus making the copper scrap smelting projects remunerative. However, due to the wide source range, the copper scrap is classified as per its grade, to ...
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The converter steel slag cannot be widely used in building materials for its poor grindability. In this paper, the grinding characteristics of untreated and pretreated (i.e., magnetic separation) steel slag were compared. Additionally, the grinding property of pretreated steel slag was also studied after adding grinding aids. The results show that …
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The slag cleaning result is shown in Fig. 13. After direct heating and melting at 1300 °C for 60 min, approximately 71.32% of the copper was recovered from the copper converter slag. However, the content of copper in the tailing was 1.42 wt.%, which needed to be recovered again.
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Top Blown Rotary Converter (TBRC) TBRC is an advanced smelting equipment for treating anode slime, WEEE, non-ferrous metal smelting slag and setting slurry to recover gold, silver and other precious metal. It can also treat copper concentrate and secondary material like scrap copper, scrape lead, lead slag, lead dust, etc.
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It has been shown previously that the copper content in the converter slag decreased from 3 to 3.5 wt.% to 1.5 to 1.83 wt.% during treatment of converter slags …
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Steel slag mainly refers to the blast furnace slag and converter slag produced in the process of iron making and steel making, and with the increase of steel production, the amount of steel slag produced increases simultaneously. In 2017, the metallurgical slag output of iron and steel enterprises in China reached more than 440 …
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The iron and steel industry produces large volumes of iron and steel-making slags as mineral residues and a massive volume of carbon dioxide (CO2) due to the consumption of raw materials, such as iron ore, lime, and coke. Converter slag, produced during the refining of pig iron to produce steel in steel-making furnaces, is a complex …
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