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copper slag furnace slag copper in ethiopia

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
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Physical chemistry of copper smelting slags and copper ...
slag chemistry and copper losses in slag at Paipote. Cardona et al. Copper smelting slags and copper losses at Paipote smelter: Part 1 Canadian Metallurgical Quarterly 2011 VOL 50 NO 4 319
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(PDF) Physical Chemistry of Copper Smelting Slags and ...
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.%,
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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
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Characteristics and utilisation of copper slag—a review ...
2003-11-1 · Copper slag has been carbothermally smelted in a submerged electric arc furnace, partially reducing FeO to a metallic phase comprising of copper and other metals by Acma et al. (1992). The metallic phase has been transformed to the granules by passing through an air jet.
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12.3 Primary Copper Smelting
2015-9-10 · 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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Heavy Metal Recovery from Slags of Copper Production
2021-8-17 · Furthermore arc furnaces can be used for cleaning of copper slag, which are pro-ducts of the Noranda or Teniente converters. In general the slag product still contains 0.5–1 wt.% of copper and is taken out by a separate tap hole (in Figure 2 at the right-side). The remaining copper content in the slag is determined by the portion of matte,
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Kinetics of Copper Reduction from Molten Slags
2014-10-27 · 25 wt. % in direct-to- blister smelting. Hence the recent trends of continuous copper smelting invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate slag cleaning furnace. Reduction of iron oxides from slags using carbon as a reductant in the form of dissolved carbon
Details
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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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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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
Details
Improving Copper Recovery from Production Slags by ...
2013-10-14 · Keywords: slag cleaning, stirring mode, copper slag, submerged arc furnace, stirring reactor Abstract Slags resulting from pyrometallurgical copper processes are important by-products to be controlled in structure and composition. Due to the significant volumes of slag compared with those of the
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Heavy Metal Recovery from Slags of Copper Production
2021-8-17 · Furthermore arc furnaces can be used for cleaning of copper slag, which are pro-ducts of the Noranda or Teniente converters. In general the slag product still contains 0.5–1 wt.% of copper and is taken out by a separate tap hole (in Figure 2 at the right-side). The remaining copper content in the slag is determined by the portion of matte,
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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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Mineralogy of slags: a key approach for our
2020-9-20 · Figure 2. Two extreme cases of copper-slag macrostructures on bulk polished sections (daylight macrophotography). (a) Unreacted minerals in a conglomerate slag from Chalcolithic La Capitelle du Broum, and (b) homogeneous melt in a plate slag from Early Bronze Age Saint-Ve´ran (size ofimage & 2.5 cm). Figure 3. Typical copper-slag microstructure as
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Kinetics of Copper Reduction from Molten Slags
2014-10-27 · 25 wt. % in direct-to- blister smelting. Hence the recent trends of continuous copper smelting invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate slag cleaning furnace. Reduction of iron oxides from slags using carbon as a reductant in the form of dissolved carbon
Details
Dalmia - Slag Cleaning
Slag Cleaning Furnace. In this furnace, copper rich oxide slags are melted in electric arc furnaces and coke & copper pyrite are added to reduce copper content in the slag. In order to increase reaction rate, slag is over-heated to produce low viscosity aggressive slag. Dalmia-OCL’s Co-clinker series Magnesia Chrome bricks have excellent ...
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Process and Arrangement for Extracting a Metal from Slag
The invention is directed to a process for extracting a metal from a slag containing said metal, wherein the liquefied metal-containing slag is heated in at least one electric arc furnace (1, 2).In order provide an improved method for recovering especially copper from slags, the invention provides that the metal-containing slag is heated in a first furnace (1) constructed as an AC
Details
Copper Smelting - Metallurgist & Mineral Processing
2021-1-13 · 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 ...
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What is a Copper Slag? (with pictures) - InfoBloom
2022-1-31 · 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.
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Effect of Cooling Rate on base Metals Recovery from
2010-10-27 · Slag sample from copper smelting operation in a water jacket furnace from DRC plant was used. The study intends to determine the effect of cooling in the extraction of base metals. The cooling methods investigated were water quenching, air cooling and furnace cooling. The latter cooling ways were compared to the original as received slag. It was observed that,
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Dalmia - Slag Cleaning
Slag Cleaning Furnace. In this furnace, copper rich oxide slags are melted in electric arc furnaces and coke & copper pyrite are added to reduce copper content in the slag. In order to increase reaction rate, slag is over-heated to produce low viscosity aggressive slag. Dalmia-OCL’s Co-clinker series Magnesia Chrome bricks have excellent ...
Details
Development, installation, and operation of a full-copper ...
2019-10-22 · operation of a full-copper, deep-cooled slag tapblock for a six-in-line copper matte settling electric furnace B.N. Belford1, P. Conradie1, and T. Mwanza2 Synopsis Metix has introduced a three-piece ’deep-cooled’ copper slag tapblock into a six in-line copper matte settling electric furnace.
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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 iron), and Slag (Iron Silicate).
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Kinetics of Copper Reduction from Molten Slags
2014-10-27 · 25 wt. % in direct-to- blister smelting. Hence the recent trends of continuous copper smelting invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate slag cleaning furnace. Reduction of iron oxides from slags using carbon as a reductant in the form of dissolved carbon
Details
Process and Arrangement for Extracting a Metal from Slag
The invention is directed to a process for extracting a metal from a slag containing said metal, wherein the liquefied metal-containing slag is heated in at least one electric arc furnace (1, 2).In order provide an improved method for recovering especially copper from slags, the invention provides that the metal-containing slag is heated in a first furnace (1) constructed as an AC
Details
A Study on Reduction of Copper Smelting Slag by Carbon
2019-12-15 · Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1.5 million tons of copper slag are generated annually in Korea. The oxides in copper smelting slag include ferrous (FeO), ferric oxide (Fe2O3), silica (SiO2 from flux), alumina (AI2O3), calcia (CaO) and magnesia (MgO). The main oxides in copper
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BACKGROUND REPORT PRIMARY COPPER SMELTING
2021-6-25 · The products of flash furnaces are matte of 45 to 65 percent 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 ...
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Hi-tech Metal Furnace of the Negev Alchemists Incinerates ...
2020-10-5 · The advanced metal furnace excavation site near the modern-day city of Beersheba, Israel. (Talia Abulafia / Israel Antiquities Authority ) During the Beersheba pre-building survey, an extremely ancient advanced metal furnace for copper smelting and copper slag were discovered, said Talia Abulafia, site excavation director for the Israel Antiquities Authority.
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Copper Smelting - Metallurgist & Mineral Processing
2021-1-13 · 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 ...
Details

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Crawler type Mobile Crushing Plant

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HJ Series High Efficiency Jaw Crusher

HPT Cone Crusher

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copper slag furnace slag copper in ethiopia

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

Physical chemistry of copper smelting slags and copper ...

(PDF) Physical Chemistry of Copper Smelting Slags and ...

Minimization of Copper Losses in Copper Smelting Slag ...

Characteristics and utilisation of copper slag—a review ...

12.3 Primary Copper Smelting

Heavy Metal Recovery from Slags of Copper Production

Kinetics of Copper Reduction from Molten Slags

MECHANISM OF BUILDUP FORMATION IN AN ELECTRIC

EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN

Minimization of Copper Losses in Copper Smelting Slag ...

Improving Copper Recovery from Production Slags by ...

Heavy Metal Recovery from Slags of Copper Production

Copper Loss in Slag - ResearchGate

Mineralogy of slags: a key approach for our

Kinetics of Copper Reduction from Molten Slags

Dalmia - Slag Cleaning

Process and Arrangement for Extracting a Metal from Slag

Copper Smelting - Metallurgist & Mineral Processing

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

Effect of Cooling Rate on base Metals Recovery from

Dalmia - Slag Cleaning

Development, installation, and operation of a full-copper ...

Operations | Sterlite Copper (A Unit of Vedanta Limited)

Kinetics of Copper Reduction from Molten Slags

Process and Arrangement for Extracting a Metal from Slag

A Study on Reduction of Copper Smelting Slag by Carbon

BACKGROUND REPORT PRIMARY COPPER SMELTING

Hi-tech Metal Furnace of the Negev Alchemists Incinerates ...

Copper Smelting - Metallurgist & Mineral Processing

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