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copper slag furnace slag copper:

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

Oct 16, 2020  高达10%返现  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 liquid treatment after flotation has always been an issue.

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Minimization of Copper Losses in Copper Smelting Slag ...

Sep 21, 2012  高达10%返现  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

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Recovery of copper from reverberatory furnace slag by ...

Mar 01, 2004  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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Minimization of Copper Losses in Copper Smelting Slag ...

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 ...

高达10%返现  Jun 05, 2013  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

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EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN THE

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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MECHANISM OF BUILDUP FORMATION IN AN ELECTRIC

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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ISASMELT TM SLAG CHEMISTRY AND COPPER LOSSES IN THE

Each furnace is rotated by a hydraulic drive linked to the furnace by a chain. By rotat-ing the furnace one way or the other, the operator can either pour the slag into the hauler pot or pour matte into a pot in the aisle. The maximum rate of slag skimming is control-led to minimize the copper content of the slag.

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Treatment of Residues from the Copper Industry with an ...

Jun 12, 2017  高达10%返现  Copper losses in the slag can generally be split into two categories. First, the physical fraction consists of mechanically trapped solids, while, second, chemically dissolved particles constitute another possibility. Before the electric furnace, the fayalite slag shows a share of around 65–80% in mechanical losses.

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Upper Forge, Coalbrookdale, Telford, Shropshire: The ...

The examination of the slag sample confirmed the presence of the mineral phases identified by XRD and also showed the presence of matte (copper-iron sulphide). Table 2 provides a bulk chemical composition of the slag avoiding any trapped matte particles as well as the composition of other phases determined using the SEM in spot mode. Table 3

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12.3 Primary Copper Smelting

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

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Minimization of Copper Losses in Copper Smelting Slag ...

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

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US3666440A - Method of recovering copper from slag ...

copper is recovered from copper-containing slag by putting the matte and slag in a molten state together in a slag treating furnace at a volume ration of more than 1:5, the melts in the furnace being maintained under agitation so that the slag and matte are in intimate contact so as to efficiently transfer copper from the slag

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BACKGROUND REPORT PRIMARY COPPER SMELTING

copper, molten slag containing iron oxides plus gangue and flux oxides, and offgas. The slag typically contains as much as two percent copper. This slag can be recycled to the flash furnace, or its copper content can be recovered in a slag cleaning furnace, often electric. The flash furnace

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EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN THE

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 Smelting - 911 Metallurgist

Jan 13, 2021  Copper Smelting Process. In the autogenous system described by this report, sulfide concentrate and silica flux are blown into the furnace through a specially designed burner with oxygen and is flash smelted to about 50-percent copper matte. The matte flows down an inclined crucible, countercurrent to the slag

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CN203513767U - Double-furnace double-side blowing slag ...

The utility model discloses a double-furnace double-side blowing slag forming and top blowing copper making continuous converting furnace. The double-furnace double-side blowing slag forming and top blowing copper making continuous converting furnace respectively performs blowing processes in a slag forming period and a copper

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Treatment of Residues from the Copper Industry with an ...

Jun 12, 2017  Copper losses in the slag can generally be split into two categories. First, the physical fraction consists of mechanically trapped solids, while, second, chemically dissolved particles constitute another possibility. Before the electric furnace, the fayalite slag

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Recovery of cobalt, nickel, and copper from slags, using ...

Nickel-copper furnace and converter slag -200 kVA. During 1995, a campaign was undertaken on the 200 kVA furnace with the intention of combining furnace slag with the converter slag previously treated. When treating furnace slag

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copper slag, copper slag Suppliers and Manufacturers at ...

A wide variety of copper slag options are available to you, such as blasting media. There are 303 suppliers who sells copper slag on Alibaba, mainly located in Asia. The top countries of suppliers are India, China, and India, from which the percentage of copper slag

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Make unremitting efforts to spread the good news-- the ...

2 天前  At 16:48 on June 28th, 2021, the Titanium Chloride Slag Plant of Panzhihua Company of Longbai Group passed the good news again: following the formal production of titanium slag from the 1#CXTZ furnace head on June 8th, CXTZ furnace also successfully achieved smooth slag production. Since then, the group's 500000 tons of Panxi titanium concentrate upgrade into titanium chloride slag

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journals for washed copper slag concrete

During smelting, a molten pool of copper forms at the bottom of the furnace while a layer of impure metal, which is the slag, is drained off from the top.Use of copper slag and washed copper slag as sand in,Use of copper slag and washed copper slag

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12.3 Primary Copper Smelting

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

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Mineralogical and morphological factors affecting the ...

Separating copper and arsenic has always been a major problem in the copper slag flotation process, which influences copper slag utilization and the environmental safety. A comparative study of flash smelting furnace (FSF) slag

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

Jun 05, 2013  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

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Recover Copper from Reverberatory Furnace Slag

Jul 22, 2019  Recover Copper from Reverberatory Furnace Slag. Laboratory and pilot plant investigations have indicated that copper recoveries of 50% can be achieved with fine grinding and flotation of a copper reverberatory furnace slag. Microscopic and microprobe studies indicate that the recoverable copper

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Control of Copper Smelter Fugitive Emissions

The copper content of the slag is maintained at 0.5 to 0.6 percent Cu by maintaining a reducing atmosphere in the slag cleaning furnace. The slag then flows by gravity to the converter furnace. The converter furnace produces anode copper which flows to a holding furnace prior to anode casting. Slag from the con- verter furnace

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MECHANISM OF BUILDUP FORMATION IN AN ELECTRIC

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

Read More
CN203513767U - Double-furnace double-side blowing slag ...

The utility model discloses a double-furnace double-side blowing slag forming and top blowing copper making continuous converting furnace. The double-furnace double-side blowing slag forming and top blowing copper making continuous converting furnace respectively performs blowing processes in a slag forming period and a copper

Read More
Recovery of cobalt, nickel, and copper from slags, using ...

Nickel-copper furnace and converter slag -200 kVA. During 1995, a campaign was undertaken on the 200 kVA furnace with the intention of combining furnace slag with the converter slag previously treated. When treating furnace slag

Read More
Treatment of Residues from the Copper Industry with an ...

Jun 12, 2017  Copper losses in the slag can generally be split into two categories. First, the physical fraction consists of mechanically trapped solids, while, second, chemically dissolved particles constitute another possibility. Before the electric furnace, the fayalite slag

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The influence of the silicate slag composition on copper ...

The prediction of the copper losses in the slag as the function of copper content in the matte has the accuracy of 51%.At the same time, when considering all the parameters: slag's composition and copper content in the matte, correlation among measured and calculated values of copper content in the waste slag

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Influence of copper-impregnated basic oxygen furnace slag ...

Microbially induced concrete corrosion (MICC) is recognized as one of the main degradation mechanisms of sewer infrastructure worldwide. To help control this problem, a beneficial reuse path for basic oxygen furnace slag (BOFS) has emerged in which the incorporation of copper

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COMPARATIVE RESULTS OF COPPER FLOTATION FROM

copper content in the ore of copper depos-its, which are nowadays in exploitation. Slags, obtained by metallurgical treatment of copper, usually with different methods of preparation and concentration, are treated for recovery of copper. Smelter slag of reverberatory furnace

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Textural, mineralogical and chemical characteristics of ...

Oct 01, 2013  The Okiep Copper District in South Africa has produced more than 110 million tons at a grade of 1.71% Cu from several small mafic ore bodies.The ore was smelted on site and generated ∼5 mt of slag.During the life of mine attempts to recover copper from the slag

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Copper Slag - General Information, Process, Products ...

Copper slag is a by-product of copper production from copper ore. For every ton of copper produced about 2.2 ton of slag is generated. At present, across the world around 33 tonnes of slag is generated while in India three copper producers Sterlite, Birla Copper and Hindustan Copper produce around 6-6.5 tonnes of slag

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