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Recovery of copper in the third rougher concentrate ranged from a low of 0.9 percent to a high of 1.5 percent. The results of the tests on slow-cooled slag show that …
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After testing of the experimentally gained samples of slowly cooled slag it was found that this technological procedure gives the best results in promoting growth or coagulation of dispersed...
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Sulfide particles in copper smelting slag can be readily recovered by the slow cooling-grinding-froth flotation technology, and more than 15 million tons of smelting slag is processed with this ...
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3.1 Sulfation roasting–water leaching 3.1.1 Effect of H 2 SO 4 addition. To determine the consumption of H 2 SO 4 in the sulfation roasting process, a predetermined weight of 98% H 2 SO 4 was mixed with the raw copper slag and then roasted at 200 °C for 1 h. The H 2 SO 4 addition varied in a range of 30–80 wt% (mass ratio of 98% H 2 SO …
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In this study, industrial lithium-ion battery (LIB) waste was treated by a froth flotation process, which allowed selective separation of electrode particles from metallic-rich fractions containing Cu and Al. In the flotation experiments, recovery rates of ~80 and 98.8% for the cathode active elements (Co, Ni, Mn) and graphite were achieved, …
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The recovery of copper in concentrates from slag cooled in an induction furnace and crushed for 30 minutes ranged from 87.1 to 96.2 percent, with the best recovery obtained …
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The hydration properties of quick cooled copper slag (QCS) and slow cooled copper slag (SCS) activated with 4% and 8% (by Na 2 O mass) sodium hydroxide (NA) and water glass (NS) were investigated by hydration heat. Meanwhile, the hydration degrees and hydration products of alkali-activated copper slags were determined by X …
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Slag cleaning can be divided into two types, first being the pyrometallurgical reduction and settling of liquid slag, which is performed in slag-cleaning furnaces, and the second type being the mineral processing-based slag cleaning of solidified or granulated slag by crushing and/or grinding followed by gravity concentration or froth flotation ...
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Air-cooled copper slag has a black colour and glassy appearance. The specific gravity varies with iron content, from a low of 2.8 to as high as 3.8. The unit weight of copper slag is somewhat higher than that of conventional aggregate. The absorption capacity of the material is typically very low (0.13%).
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Moreover, the flotation kinetic model of copper slag was established and the results showed that the movement of copper slag in the flotation process conforms to the first-order kinetics. The addition of sodium carbonate increased the stability of the pulp and improved the flotation kinetics greatly, resulting in a better flotation performance.
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Abstract. The production of Copper slag occurs during the smelting of Cu, and it contains various compounds, including oxides of Fe, Cu, Co, Al, Si, Ni, Cr, and Ca. A significantly smaller percentage is utilised for low-end applications and is mainly dumped, thus occupying large spaces for a longer duration. As a result, gainful utilization of ...
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Milling and froth flotation methods are quite common when dealing with slow-cooled slags. Before flotation, the slag needs to be cooled in a controlled …
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froth flotation methods are quite common when dealing with slow-cooled slags. Before flotation, the slag needs to be cooled inacontrolledmanner. Therearemultipleoptionsforthis,such ... mance of copper slag, finding that it was possible to obtain a Clarification The designation of corresponding author is correct. Ari Jokilaakso is …
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Roasting of copper converter slag containing 4.03% copper, 1.98% nickel and 0.48% cobalt with ammonium sulphate open to atmosphere has been carried out in order to achieve sulphation of copper ...
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Several plants recover the copper contained in the copper slag by flotation. This method is generally appropriate for liberated metallic copper and sulfide minerals. It is unsuitable for recovering base metals such as cobalt, zinc, and nickel and forms of oxides or doped slags ( Aatach et al., 2020 ).
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These processes primarily include leaching to recover the copper,4,5 smelting reduction or direct reduction and wet magnetic separation to recover the iron,6,7 and froth flotation to recover the nonferrous metals.8,9 In particular, froth flotation has been very successful at recovering copper from slowly cooled copper slag in industrial ...
DetailsThe phases and composition of the slow cooled slag were analyzed. The factors which affected the copper recovery efficiency such as grinding fineness, pH value of flotation …
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Therefore, the molten copper slag in the slag ladle was cooled slowly to nearly 1000 ℃, and then treated by water quenching, which could not only achieve better flotation efficiency …
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Therefore, the molten copper slag in the slag ladle was cooled slowly to nearly 1000 ℃, and then treated by water quenching, which could not only achieve better flotation efficiency but also shorten the cooling time. Whereas, the copper flotation recovery rate of the CSS is in the range from 85 %∼92 % currently.
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Metal Losses to the Slag in Smelting and Converting. 80% of the copper produced from ores worldwide originates from sulfide ores. The copper concentrate which results from flotation of the ore is typically smelted and converted to blister copper [].During smelting S and Fe are oxidized, where SiO 2 is added to form a liquid ferric or …
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The metal in copper slag was recovered by flotation. • Sodium carbonate and mechanical activation strengthen flotation. • The mechanism of activated flotation of …
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shibang / sbm milling and flotation of slow cooled copper slag.md. dushusbm c4a532c29b code. 19:24:26 +08:00
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Recovery of copper from copper slag by physical beneficiation using froth flotation was studied by Sarrafi et al. ... collector to recover the copper from the ground copper slag and indicated that a slow-cooled slag would be more favorable for better copper recovery. Flotation of ground copper slag was also studied by Bruckard et al. …
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copper slag is generated, and 70 million tons of copper slag is produced worldwide each year []. At present, a large 3 amount of copper slag occupies land and wastes resources, and the harmful elements contained in it always threaten human living environment and health, such as arsenic [4, 5]. The mineral phase of copper slag consists predomi-
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Tailings from an industrial copper slag cleaning milling and flotation circuit have been pre-reduced at low temperatures, well below its melting point, using CH 4 -H 2 -Ar mixtures with the aim of metallizing its iron oxide component to metallic iron. The treatment carried out at 700–900 °C, with a duration of up to 90 min, indicated a ...
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For an air-cooled slag at optimized conditions, 72% of copper was recovered in one stage flotation and a 12.6% copper concentrate was achieved. The best recovery efficiency was obtained when 30 g ...
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Froth Flotation and Pyrometallurgical Copper-Slag Cleaning Tommi Rinne 1, Anna Klemettinen 1, Lassi Klemettinen 1, Ronja Ruismäki 1, Hugh O'Brien 2, Ari Jokilaakso 1 and Rodrigo Serna-Guerrero 1,* 1 Department of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University,
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At the same time, seawater is an alternative for froth flotation, given the current prevailing water crisis. The present paper study of froth flotation of copper, from smelting slag, using not desalinated seawater as fresh water. The higher copper recovery obtained was 77.27%. Keywords: Copper-Slag-Seawater-Froth Flotation 1.
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The present paper study of froth flotation of copper, from smelting slag, using not desalinated seawater as fresh water. The higher copper recovery obtained was 77.27%., Under #200 Taylor mesh ...
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Tailings from an industrial copper slag cleaning milling and flotation circuit have been pre-reduced at low temperatures, well below its melting point, using CH 4-H 2-Ar mixtures with the aim of metallizing its iron oxide component to metallic iron.The treatment carried out at 700–900 °C, with a duration of up to 90 min, indicated a complete …
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After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of concentration (b) % Metal Recovery (c) % Metal Loss (d) % Weight Recovery, or % Yield (e) Enrichment Ratio Table 1: Grade/recovery performance of a hypothetical copper ore flotation process.
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Slag cleaning processing can be divided into two types. The first is pyrometallurgical reduction and settling, performed in an electric or fuel-fired slag-cleaning furnace. The second is minerals processing of slow-cooled slag, including crushing, grinding, and froth flotation, to recover Cu from the slag.
Detailsfroth flotation methods are quite common when dealing with slow-cooled slags. Before flotation, the slag needs to be cooled ... mance of copper slag, finding that it was possible to obtain a ...
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Copper slag is a waste during pyrometallurgical production of copper from copper sulfide concentrates. Generally, 2.0–3.0 tons of copper slag are generated per ton of copper production, depending on the properties of raw materials and operating conditions [1,2,3,4].It is estimated that approximately 12 million tons of copper slag is …
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Consequently, flotation was attempted to recycle Cu in slag containing copper sulphide components. Three key factors affecting flotation were ascertained, namely, grinding fineness, the collector and the pH value, while the recovery of Cu estimated by ICP and XRF. Copper concentrate grading at 14.47 with 79.66% Cu …
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Laboratory flotation tests of slow cooled converter slag have showed that 92.5% copper recovery at the copper cutoff grade of 24-25 % can be achieved by using a 50:50 ratio of DSP330 and SIBX ...
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Fortunately, a stepwise extraction process was proposed to recover valuable elements (copper, iron, lead, and zinc) from waste copper slag. Which the flotation was …
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Physical separation of copper from copper smelter slag through froth flotation has been studied extensively (Sarrafi et al., 2004; Bruckard et al., 2004; Guo et al., 2016). Sarrafi et al. (2004 ...
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STUDY ON COPPER CONCENTRATING FROM CONVERTER SLAG OF COPPER SMELTER. L. Xiaolei. Materials Science, Engineering. 2001. Floatation process to deal with converter slag from copper smelter is studied in this paper The grade of copper concentrate and the copper recovery are 29 82% and 93 58% by adopting a …
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