copper recovery magnetic slag

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RECOVERY OF COPPER FROM COPPER SLAG AND .

2014-9-8 · Recovery of copper from copper slag and copper slag flotation tailings 75by oxidative leaching Table 1. Chemical compositions of the copper smelter slag and the slag flotation tailings Constituent Content (wt.%) Copper Slag Slag Flotation Tailings Cu – total 0.97 0.59 Cu – oxides 0.15 0.06 Cu – sulphides 0.82 0.53 SiO 2 33.75 34.62 Al 2 O

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Recovery of Iron from Copper Slag by Carbothermic ...

The carbothermic reduction of copper slag at the different binary basicity (CaO/SiO 2) was carried out for recovering iron by wet magnetic separation.Calcium carbonate is found to be capable of improving the iron recovery, as well as increasing the particle size of metallic iron significantly.

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Application of copper slag in geomagnetic .

tigations of archaeological copper smelting slag deposits. Slag deposits, formed by fast cooling melts derived from silicate and carbonate copper ores, may be nearly ideal for paleointensity study. Many slag samples have portions that are very fine grained. Many specimens have magnetic particles that are extremely small, spanning the size range

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RECOVERY OF COPPER FROM SMELTING SLAG BY .

2015-11-11 · Recovery of copper from smelting slag by sulphation roasting and water leaching 411 Materials and experimental methods Experiments were conducted using a reverberatory furnace slag from the Bor Copper Concentrator, Serbia. The slag was sampled from the crushing line before entering the milling section of the concentrator.

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Iron Recovery from Discarded Copper Slag in a RHF .

By using DR followed by a magnetic separation process for iron recovery from copper slag, Yang obtained iron powder of 92.05% iron content with an iron recovery rate of 81.01%, and Wang obtained iron powder of 92.96% iron content with an iron recovery rate of 93.49%. Both of their tests have achieved good results.

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Copper losses to slags obtained from the El Teniente .

2009-8-26 · copper content in the slag is altered rapidly when magnetic v =⋅ 2 gr()− ⋅ D 9 12 2 2 ρρ µ 310Fe O FeS FeO SO 3 4()s +[] matte slag= ()+ 2()g Figure 2. System Cu-Fe-S-O-SiO 2 at 1250°C Figure 3. The correlation between the silica, magnetite and copper content in a sequence of 100 samples taken at the end of the first period of matte ...

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A Comprehensive Recovery of Copper-Iron .

A copper concentrate is obtained by flotation and an iron concentrate is obtained by magnetic separation in the closed circuit flowsheet. The copper concentrate contains 18.86% Cu with a recovery of 72.36%, and the iron concentrate contains 52.24% Fe with a recovery of 70.87%.

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Recovery of metal values from copper slag and reuse .

The present work is aimed at addressing both aspects by employing recycling to generate wealth from copper slag and producing utilizable materials at the same time thus restoring the ecosystem. Copper slag was characterized and processed.

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Recovery of iron from copper slag via modified .

2020-6-4 · The optimum conditions for recovering iron by oxidizing roasting and magnetic separation are as follows: calcium oxide content of 25 wt.%, mixed gas flow rates of CO2 and CO of 180 and 20 mL/min, oxidizing roasting at 1323 K for 2 h, grinding the modified slag to 38.5–25.0 μm and magnetic .

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Smelting reduction and kinetics analysis of magnetic .

To improve the recovery of copper, the viscosity of copper molten slag is decreased by the reduction of magnetic iron, which, in turn, accelerates the settling and separation of copper droplets ...

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Deep reduction recovery of iron from copper slag | IIETA

Magnetic metallic iron powder with low S and P contents, high iron content (92.96%) and high iron recovery rate (93.49%) were produced through deep reduction magnetic separation using coke powder as reductant and CaO as flux under 1,300 °C for 2h.

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Recovery of iron from copper slag by deep reduction .

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 copper slag. Under the optimized condition of the ...

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copper recovery from slag in india - fahrschule-dathe.de

copper recovery from slag in india. Achines For Recovery Of Iron From Slag. Iron making from magnetic slag YouTube Recovery of iron from copper slag by deep reduction and magnetic Making copper sulphate crystals with copper oxide and sulfuric A iron slag recycling machines Iron Slag Recycling 1000 TPH Iron . Machinery To Recycle Iron Slag.

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Recovery of Copper from Reverberatory Copper Slag and ...

2016-6-8 · The slurry was stirred by magnetic stirrer. A schematic flow diagram of the leaching of copper from copper slag is shown in Figure 1. ... The optimum digestion temperature is 250oC, at which a high recovery of copper from copper slag is achieved. Figure 7. Copper in .

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Recovery of iron from copper slag by deep reduction .

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...

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Copper losses to slags obtained from the El Teniente .

2009-8-26 · copper content in the slag is altered rapidly when magnetic v =⋅ 2 gr()− ⋅ D 9 12 2 2 ρρ µ 310Fe O FeS FeO SO 3 4()s +[] matte slag= ()+ 2()g Figure 2. System Cu-Fe-S-O-SiO 2 at 1250°C Figure 3. The correlation between the silica, magnetite and copper content in a sequence of 100 samples taken at the end of the first period of matte ...

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Recovery of Iron from Copper Slag by Carbothermic ...

The carbothermic reduction of copper slag at the different binary basicity (CaO/SiO 2) was carried out for recovering iron by wet magnetic separation.Calcium carbonate is found to be capable of improving the iron recovery, as well as increasing the particle size of metallic iron significantly.

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Effects of Na2O additions to copper slag on iron .

2020-11-15 · Since oxidation method for recovering magnetic fractions from copper slag was adopted, the final phase related to iron in melts under air atmosphere was mainly magnetite, which is proved in SiO 2 -FeO-Fe 2 O 3 system phase diagram (Eisenhuttenleute, 1995).

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EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN THE .

2015-9-7 · Copper is present in a smelting slag from Teniente Converter (TC) in the form of mecha-nically entrained matte inclusions and dissolved copper. Copper recovery from the slag requires magnetite reduction to liberate matte inclusions and create conditions for co-reduction of dissolved cuprous oxide. Efficiency of copper recovery from the slag in an

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Copper losses to slags obtained from the El Teniente .

2009-8-26 · copper content in the slag is altered rapidly when magnetic v =⋅ 2 gr()− ⋅ D 9 12 2 2 ρρ µ 310Fe O FeS FeO SO 3 4()s +[] matte slag= ()+ 2()g Figure 2. System Cu-Fe-S-O-SiO 2 at 1250°C Figure 3. The correlation between the silica, magnetite and copper content in a sequence of 100 samples taken at the end of the first period of matte ...

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Closed-loop solvometallurgical process for recovery of ...

Ferrous slag, which includes iron slag, steel slag, alloy steel slag and ferroalloy slag is mainly treated through magnetic and gravity separation methods to recover chromium and nickel. 1 Non-ferrous slag, which includes copper, zinc and lead slag, often has a high iron content, which is comparable to that of low-grade iron ores, and it can be ...

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Alternative Reduction of Copper Matte in Reduction .

The recovery body of copper slag was mainly copper matte, returned to smelting process of copper by means containing acid leaching, flotation recovery and depletion recovery. 3,7,8) Copper slag contains large amounts of fayalite, direct magnetic separation of iron recovery is limited. Recycling method for Fe is mainly roasting-magnetic ...

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Utilization of Waste Copper Slag to Produce Directly ...

Kim et al. carried out a research on reduction-magnetic separation process, where reduction at 1250°C for 1.5 h and then followed by dry magnetic separation to recover iron from the copper slag of Korea Zinc Co., Ltd., but the grade of product is low and SiO 2 content is as high as 12.7%. 12) Li et al. extracted the iron by deep reduction at ...

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Iron Recovery from Discarded Copper Slag in a RHF Direct ...

2016-11-3 · That is to say, the copper slag is a kind of costless raw material. Thanks to the rich zinc content in such copper slag, the same can also be recovered in the form of zinc oxide powder when the iron element is recovered. Therefore, copper slag with 40% Fe content is a better iron resource economically than conventional iron deposits. Fe exists in copper slag mainly in the form of fayalite .

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Recovery of cobalt from converter slag of Chambishi .

2011-9-28 · Recovery of cobalt from converter slag of Chambishi Copper Smelter using reduction smelting process ZHAI Xiu-jing 1, LI Nai-jun2, ZHANG Xu, FU Yan1, JIANG Lan1 1. School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China;

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Iron recovery from copper-slag with lignite-based .

In order to recycle iron from copper slag with total iron content(TFe) of 39.96%(mass fraction),a technique with lignite-based direct reduction followed by magnetic separation was presented.After analysis of chemical composition and crystalline phase,according to experimental mechanism,the tests for studying the effects of different parameters on the recovery of iron were carried out.The ...

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Synergetic utilization of copper slag and ferruginous ...

2019-12-4 · Attempts to economically and effectively treat copper slag (CS) and ferruginous manganese ore(FMO) using the traditional direct reduction–magnetic separation process have faced many challenges, such as low levels of metal recovery, poor cost ...

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A Comprehensive Recovery of Copper-Iron .

A copper concentrate is obtained by flotation and an iron concentrate is obtained by magnetic separation in the closed circuit flowsheet. The copper concentrate contains 18.86% Cu with a recovery of 72.36%, and the iron concentrate contains 52.24% Fe with a recovery of 70.87%.

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Slag cleaning in crossed electric and magnetic fields - .

Analysis of physico-chemical phenomena, mathematical and fluidodynamic modeling of slag reduction and cleaning allowed for development of a new concept of slag cleaning in crossed electric and magnetic fields. Results of slag cleaning in a large laboratory scale confirmed expectations, showing the possibilities of very intensive slag reduction ...

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Iron Recovery from Discarded Copper Slag in a RHF .

Iron Recovery from Discarded Copper Slag in a RHF Direct Reduction and Subsequent Grinding/Magnetic Separation Process . By Zhicheng Cao ... conditions are the mass proportion of discarded copper slag, reduction coal, limestone and industrial sodium carbonate of 100:25:10:3, the reduction temperature of 1280 °C for the reduction time of 35 min ...

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