copper slag furnace slag copper

Copper Smelting Slag Cleaning in an Electric Furnace by ...

2020-10-16  Copper slag cleaning using the flotation method and/or in an electric furnace is widely adopted in industrial production.[2,3,4,5] The flotation method has the advantages of low energy consumption and low copper content in the slag, but the waste

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Minimization of Copper Losses in Copper Smelting Slag ...

2012-9-21  During the last few decades, the pyrometallurgical processes used for cleaning copper smelting slags have been steadily optimized. The electric furnace or rotary slag-cleaning furnace are now generally used to perform this task, giving a level of copper in discard slag typically in the range of 0.55 wt.% and 1.3 wt.%, with most plants reporting copper losses in the discard slag in the range of ...

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Minimization of Copper Losses in Copper Smelting Slag ...

2017-8-29  electric furnace slag from the Paipote smelter, to-gether with a given amount of silica sand to obtain two different Fe/SiO 2 ratios in the slag (1.4 and 1.6). The composition of the slag sample received from 2 6 furnace. Copper Copper Copper Copper 2 3 2

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Recovery of Copper from the Slag of Khatoonabad Flash ...

2013-6-5  Copper loss in the slag of Khatoonabad flash smelting furnace is estimated to be about 1–3 %. At present, the electric slag cleaning furnace is used for the recovery of copper from slag. However, due to low recovery efficiency of electric furnace along with high consumption of electrical energy and water, selection of a method to enable minimum energy consumption and maximum recovery of ...

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Recovery of copper from reverberatory furnace slag by ...

2004-3-1  1.. IntroductionGenerally, copper losses in reverberatory slags are either chemical or mechanical. Most of the copper loss is mechanical, mainly in the form of matte drops (Biswas and Davenport, 1980).As is known, the viscosity of the slag, the interfacial properties of the matte and the slag, the bath turbulence, and chemical compositions of the slag and matte are the main factors

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EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN

2015-9-7  Efficiency of Copper Recovery from a Slag in the Large Electric Furnace Figure 4: Calculated copper content in a slag versus time based on simple gravitational settling and gravitational coalescence model The gravitational coalescence model did not show significant removal of metallic copper.

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Copper Slag - an overview ScienceDirect Topics

Copper slag, or fayalite slag, is a by-product obtained during the matte smelting, converting and refining of copper (Fig. 7.11). 54,59 It has been estimated that for every tonne of copper produced, about 2.2 tonnes of slag is generated, 60 as a consequence of the relatively low grades of

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Enhancing the flotation recovery of copper minerals in ...

2020-1-1  The slags produced from the NCS furnaces (TSL furnace, copper converter, reverberatory furnace) contain copper ranging between 0.8 to 5% w/w. Due to this high content of copper, the slags are milled and floated to recover the copper. The main drawback in the current process is that the final flotation tailings grades are in excess of 0.9% Cu.

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Copper extraction from reverberatory and flash furnace ...

1998-6-1  The effect of the slag particle size on copper and iron dissolution is shown in Fig. 3.For particle sizes 40 μm, the extraction of copper decreases slightly in the Refimet slag and ...

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(PDF) DESIGN OF COPPER COOLING SYSTEMS FOR

The matte/slag tidal zone in a nickel-copper-iron-sulphide matte smelting furnace is subject to severe process conditions that can lead to premature failure of the lining.

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12.3 Primary Copper Smelting - US EPA

2021-6-25  Slag produced by flash furnace operations contains significantly higher amounts of copper than reverberatory or electric furnaces. Flash furnace slag is treated in a slag cleaning furnace with coke or iron sulfide. Because copper has a higher affinity for sulfur than oxygen, the copper in the slag (as copper oxide) is converted to copper sulfide.

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EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN

2015-9-7  Efficiency of Copper Recovery from a Slag in the Large Electric Furnace Figure 4: Calculated copper content in a slag versus time based on simple gravitational settling and gravitational coalescence model The gravitational coalescence model did not show significant removal of metallic copper.

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Enhancing the flotation recovery of copper minerals in ...

2020-1-1  The slags produced from the NCS furnaces (TSL furnace, copper converter, reverberatory furnace) contain copper ranging between 0.8 to 5% w/w. Due to this high content of copper, the slags are milled and floated to recover the copper. The main drawback in the current process is that the final flotation tailings grades are in excess of 0.9% Cu.

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Copper Loss in Slag - ResearchGate

An innovative method was devised to improve copper recovery and operational efficiency of the Cu converter slag-cleaning furnace, by utilising both carbon and fluoride values of an otherwise ...

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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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INVESTIGATION ON POSSIBLE USE OF PALM NUTSHELLS

2020-10-20  A copper-slag from the water-jacket furnace, producing copper-matte, containing copper and other base metals was used for copper recovery. This slag was provided by Gecamines from the Democratic republic of Congo. Raw PKS samples were provided by artisanal palm oil producers from the Democratic Republic of Congo.

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MECHANISM OF BUILDUP FORMATION IN AN ELECTRIC

2015-9-7  The copper slag cleaning in an electric furnace is based on slag reduction and settling of copper matte inclusions. Copper recovery depends on the slag temperature, degree of magnetite reduction and slag residence time. The formation of solid buildup on the furnace hearth leads to the decrease of furnace volume and slag residence time, affecting

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Resource utilization of copper smelter slag——a state-of ...

2021-11-16  Abstract: Large quantities of slag dumped in the open are contributing to the absence of recovery and utilization of valuable metals as well as potential environmental pollution to water and soil arisen by heavy metal contamination. The mineralogical characteristics and researches on recovering valuable metals from typical copper slag produced by pyrometallurgical process were summarized in ...

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Task 3. Value-added Uses for Copper Smelting Slag 2022

2021-8-19  Value-added Uses for Copper Smelting Slag . Proposed by Freeport -McMoRan Background Copper smelting is a high-temperature process that separates elemental copper from copper concentrates. Smelting leaves behind “slag” from the refining process. Once it leaves the smelter, the slag is poured onto the slag stockpile and is cooled in layers.

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Textural, mineralogical and chemical characteristics of ...

2013-10-1  The Okiep Copper District is located 600 km north of Cape Town in the north-western part of the Northern Cape Province, South Africa and includes the towns of Springbok, Okiep, Nababeep and Concordia.It is the oldest mining district in the country and has been a copper producer for more than 150 years.Copper smelters have been in operation at several localities in the area and produced slag ...

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12.3 Primary Copper Smelting - US EPA

2021-6-25  Slag produced by flash furnace operations contains significantly higher amounts of copper than reverberatory or electric furnaces. Flash furnace slag is treated in a slag cleaning furnace with coke or iron sulfide. Because copper has a higher affinity for sulfur than oxygen, the copper in the slag (as copper oxide) is converted to copper sulfide.

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Improving Beneficiation of Copper and Iron from Copper ...

2018-12-10  2.1.1. Copper Slag The copper slag used in the experiments is a byproduct generated during the cleaning of electric furnace slag and refining of copper in Tongling Non-ferrous Metals Group Holding Co., Ltd (Tongling, China). As shown in Table1, the main chemical compositions contained in the waste slag are 42.85 wt. %

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INVESTIGATION ON POSSIBLE USE OF PALM NUTSHELLS

2020-10-20  A copper-slag from the water-jacket furnace, producing copper-matte, containing copper and other base metals was used for copper recovery. This slag was provided by Gecamines from the Democratic republic of Congo. Raw PKS samples were provided by artisanal palm oil producers from the Democratic Republic of Congo.

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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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Resource utilization of copper smelter slag——a state-of ...

2021-11-16  Abstract: Large quantities of slag dumped in the open are contributing to the absence of recovery and utilization of valuable metals as well as potential environmental pollution to water and soil arisen by heavy metal contamination. The mineralogical characteristics and researches on recovering valuable metals from typical copper slag produced by pyrometallurgical process were summarized in ...

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Copper Slag Manufacturer,Copper Slag Powder Supplier ...

Copper slag is a by-product created during the copper smelting and refining process. As refineries draw metal out of copper ore, they produce a large volume of non-metallic dust, soot, and rock. Collectively, these materials make up slag, which can be used for

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Task 3. Value-added Uses for Copper Smelting Slag 2022

2021-8-19  Value-added Uses for Copper Smelting Slag . Proposed by Freeport -McMoRan Background Copper smelting is a high-temperature process that separates elemental copper from copper concentrates. Smelting leaves behind “slag” from the refining process. Once it leaves the smelter, the slag is poured onto the slag stockpile and is cooled in layers.

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Granulated copper slag - uralgrit

Copper slag is a modern granular slag that makes it easy to remove persistent dirt, mill scale, and corrosion products using sandblasting. Cooperslag is suitable for high-performance abrasive cleaning of steel and concrete, for uniform surface profiling. It is used for

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THE MAIN REASONS FOR INCREASED COPPER LOSSES

slag depletion and lead to significant irreversible losses of metal with slag. Therefore, ways to reduce the loss of copper with slag in the process of autogenous smelting are becoming increasingly important today. RESEARCH METHODOLOGY The samples of the slags were obtained from Vanyu-kov furnace in Balkhash Copper-Smelting Plant. They

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Operations Sterlite Copper (A Unit of Vedanta Limited)

The ISA™ furnace is a vertical shaft type furnace completely lined with refractory into which wet copper is charged along with quartz and limestone into the molten bath. In the process, Copper Concentrate gets converted into two products-Matte, a mixture of sulphide (containing copper and

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