+86 0371 8654 9132

copper slag furnace slag copper

A BRIEF REVIEW ON BLAST-FURNACE SLAG AND COPPER

of copper is produced, 2.2-3 tonnes of CS are gen-erated [4]. In Oman approximately 60,000 tonnes of copper slag is produced every year [5]. The pro-duction approximately 0.36, 0.244, 2.0, and 4.0 million tonnes of CS is reported in Iran, Brazil, Ja-pan and the United States, respectively [6]. Cur-rently, about 2 million tonnes of waste copper slag

Read More
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.

Read More
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 sulfide.

Read More
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

Read More
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

Read More
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 sulfide.

Read More
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

Read More
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.

Read More
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

Read More
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 is in the form of matte, chalcocite, and metallic ...

Read More
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 is granulated ...

Read More
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

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 making period in a PS (Pierce-Smith) converter sequentially, and ...

Read More
Characterization of copper slag for beneficiation of iron ...

Apr 01, 2021  Globally a large volume of copper slag is produced which can be approximated to 2.2 tons of slag generated for every ton of copper produced [].The annual worldwide production of slag is approximately 24.6 million tons in the early century [6, 7] and increasing at a rate of 11% per year [].Table 1 illustrates the magnitude of slag produced in different areas in the world and Botswana ...

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 containing 0.22% Co on its own, the maximum cobalt recovery that could be obtained was 66%, with a cobalt value of 0 ...

Read More
Minimization of Copper Losses in Copper Smelting Slag ...

For these conditions, the copper losses in the slag are roughly 75% as dissolved copper and 25% as entrained matte and copper. Such conditions include operating the electric furnace at metallic copper saturation, maintaining the %Fe in the electric furnace matte between 6 wt.% and 9 wt.%, not exceeding a slag temperature of 1250°C, and ...

Read More
Application of copper slag in geomagnetic archaeointensity ...

smelting furnace which would enable radiometric dating by 14C. Hence slag has the possibility of combining the advantages of good performance during the paleointensity experiment and the availability of precise radiometric dates. In many localities slag deposits are found as large multilayer waste mounds which represent intensive copper production

Read More
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 is obtained with the determination ...

Read More
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 flow, to the converting zone at ...

Read More
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 sulfide.

Read More
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 is in the form of matte, chalcocite, and metallic ...

Read More
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

Read More
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

Read More
Improving Copper Recovery from Production Slags by ...

1.3 Characterisation of the slag The slag type used in copper industry is normally a fayalitic based slag [2]. After processing the slag in the submerged arc furnace the slag still contains valuable metals. A typical slag composition including the main metal contents is given in Table 1.

Read More
What is a Copper Slag? (with pictures) - InfoBloom

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 a surprising number of applications in the building and industrial fields.

Read More
Application of copper slag in geomagnetic archaeointensity ...

smelting furnace which would enable radiometric dating by 14C. Hence slag has the possibility of combining the advantages of good performance during the paleointensity experiment and the availability of precise radiometric dates. In many localities slag deposits are found as large multilayer waste mounds which represent intensive copper production

Read More
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 is granulated ...

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 containing 0.22% Co on its own, the maximum cobalt recovery that could be obtained was 66%, with a cobalt value of 0 ...

Read More
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 is obtained with the determination ...

Read More
(PDF) RECYCLING OF SLAG FROM COPPER PRODUCTION

In the production process of copper large amounts of solid waste products (slag) mainly containing iron silicate-fayalite (2FeO•SiO2), aluminum oxide, calcium oxide as well as lead, zinc, copper and molybdenum, arsenic and selenium presenting in less

Read More
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 at different sites.

Read More
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 is obtained in the process of metallurgical con-

Read More
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 and its flotation products (concentrate and tailing) reveals the factors

Read More