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Hence, the recent trends of copper smelting invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate …
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1.2. Objectives. The objective of this present study is to characterize the BCL copper slag and analyze its composition properties. In the past, research has been focused on …
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Modern copper smelters use processed copper ore fed into a flash furnace, typically fired by oxygen which produces blister copper, being further processed in a converter furnace. Molten …
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primary copper smelting TSL furnace shell temperatures are known to be very high, and the authors have witnessed temperatures in excess of 300°C. Many TSL furnace installations …
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Pyrometallurgical production of copper generates two slags: smelting furnace slag and converter slag which contain 0.5-2% Cu and 2-8% Cu, respectively. The following three methods are …
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The phase diagram is essential for optimizing slag compositions for smooth tapping and effective separation of matte and slag in the copper flash smelting process. …
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of copper from the slag. Experimental Materials. Industrial copper blast furnace slag was used in this study. Slag sampIes received from the furnace were crushed to less than 3 mm, and 100-g …
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Commonly used alkali activation precursors such as blast furnace slag and fly ash will soon become less available due to resource competition, and may cease to be produced …
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Reactivity is the key to the successful utilization of waste materials. Ferronickel slag, copper slag, and copper tailing show a high amount of SiO 2 that forms a secondary calcium …
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Major part of copper lost in slag is recovered through slag cl eaning operations. Copper losses in slag are of two main t ypes: copper is either dissolved in molten slag as cuprous oxide (or as …
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Granulated copper slag is more porous and therefore, has lower specific gravity and higher absorption capacity than air-cooled copper slag. The granulated copper slag is made …
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However, recovery of copper was about 4 percent lower for the high copper slag (sample C) and 23 percent lower for the low copper slag (sample A). Flotation tailings from the …
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To recover copper from copper slag, a novel slag cleaning method was proposed. The thermodynamics and binary phase diagram of FeO–SiO 2 were calculated first. Then, the …
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Slag (FSS) having Basic Oxygen Furnace (BOF) slags, Electric Arc Furnace (EAF) slags, along with copper slag (CS) and ferronickel slag (FNS) as sustainable alternatives in …
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The matte and slag phases separate via density differences. Understanding the height of each layer in the furnace is critical for process control, furnace integrity, and operational reasons. …
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Metal losses in discard slags as in the copper and PGM industry are the main factor determining overall plant recovery. The metals are present in dissolved form and as matte or metallic …
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The furnace is equipped with one slag tap-hole located at an elevation of 1550 mm above the hearth. Slag skimming is performed through a water-cooled copper block installed in …
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The application and continuous improvement of the copper slag reduction process in the electric furnace stem from increasingly strict legal restrictions on slag utilization and the financial …
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In addition, molten slag splashing from the furnace bath freezes onto the lance body due to the cooling effect of the combustion air flowing through the lance. The frozen slag forms a …
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Tenova Pyromet has developed innovative technologies for copper smelting and electric slag cleaning furnaces. Based on client feedback and requirements, innovative designs have been …
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The fly ash, ground granulated blast-furnace slag and electrolytic copper powder are used at a ratio of 3:6:1. Solid sodium metasilicate is used at 10% of the total precursor, …
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On the basis of above findings, this paper adopts an analytical method of assuming the copper slag as a dynamic heat source, establishing a slag ladle simulation geometric …
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Isa smelting copper slag The Isa smelting copper slag used in the experiments was obtained from the local copper industry. In the pre-treatment stage, the raw material was ground until it could …
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The current study investigates the incorporation of copper slag (CS) and stainless steel slag resulting from electric arc furnace operations (EAFSS) as partial replacements for …
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Furnace slag from direct-to-blister smelting of copper concentrates contains 12–15% of copper and 2.5–4% of lead. In this form it cannot be deemed as waste material, and thus it is …
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Differences exist between copper slag and traditional blast-furnace slag in terms of recovery methods, along with difficulties. These are mainly reflected in the following aspects: …
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To decrease the copper loss, a cleaning furnace (e.g. electric slag-cleaning furnace, rotary slag-cleaning furnace) is applied after the pyrometallurgical process, followed by a drain …
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Incidental to comparatively slow melting under combustion gases, copper oxides react with the furnace lining, and the slag so-formed must be completely recycled. The three …
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The furnace can be designed with effective working volume minimal 0.15m3, suitable for the recovery of anode slime, PM-containing smelting slag, lead refining dross and all kinds of dust. …
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Replacement of cement by solid wastes is an effective method to utilize secondary resources and reduce CO 2 emissions. In this study, copper slag (CS) and granulated blast …
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