copper slag furnace slag copper in ethiopia

(PDF) Recovery of Copper from the Slag of Khatoonabad ...
2022-1-6 · 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 ...
دردشة على الإنترنت
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
دردشة على الإنترنت
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
دردشة على الإنترنت
Copper Slag - an overview | ScienceDirect Topics
The chemical composition of copper slag varies with the type of furnace. The typical composition of smelting slags is Fe (as FeO, Fe 3 O 4) 30–40%; SiO 2 35–40%; Al 2 O 3 up to 10%; and CaO up to 10%. The density of copper slag varies between 3.16 and 3.87 g/cm 3 based on the amount of iron content. The average specific gravity of copper ...
دردشة على الإنترنت
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
دردشة على الإنترنت
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 ...
دردشة على الإنترنت
Minimization of Copper Losses in Copper Smelting Slag ...
2017-8-29 · Minimization of Copper Losses in Copper Smelting Slag During Electric Furnace Treatment PASCAL COURSOL,1,4 NUBIA CARDONA VALENCIA,2 PHILLIP MACKEY,3 STACY BELL,2 and BOYD DAVIS2 1.—Barrick Gold Corporation, Toronto, ON, Canada. 2.—Kingston Process Metallurgy, Kingston,
دردشة على الإنترنت
Comprehensive review on metallurgical recycling and ...
2021-5-1 · The copper slag produced by the slag cleaning furnaces as a final by-product, yields copper in the range of 0.55–1.3 wt.% in the discarded slag, with copper losses of most plants in the discarded slag limited between 0.8 wt.% and 1.0 wt.% (Coursol et al., 2012). However, the final copper slag still contains large amounts of valuable metals ...
دردشة على الإنترنت
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.
دردشة على الإنترنت
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.
دردشة على الإنترنت
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,
دردشة على الإنترنت
Copper Slag - an overview | ScienceDirect Topics
The chemical composition of copper slag varies with the type of furnace. The typical composition of smelting slags is Fe (as FeO, Fe 3 O 4) 30–40%; SiO 2 35–40%; Al 2 O 3 up to 10%; and CaO up to 10%. The density of copper slag varies between 3.16 and 3.87 g/cm 3 based on the amount of iron content. The average specific gravity of copper ...
دردشة على الإنترنت
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.
دردشة على الإنترنت
RESEARCH ON THE REDUCTION OF COOPER SLAG
Blister copper smelting in a flash furnace results in the generation of slag with a Cu content greater than 15 percent. In the process of reduction in an electric furnace, coke or coke breeze is used as a carbon-bearing material.
دردشة على الإنترنت
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
دردشة على الإنترنت
Minimization of Copper Losses in Copper Smelting Slag ...
2017-8-29 · Minimization of Copper Losses in Copper Smelting Slag During Electric Furnace Treatment PASCAL COURSOL,1,4 NUBIA CARDONA VALENCIA,2 PHILLIP MACKEY,3 STACY BELL,2 and BOYD DAVIS2 1.—Barrick Gold Corporation, Toronto, ON, Canada. 2.—Kingston Process Metallurgy, Kingston,
دردشة على الإنترنت
Visa Saari - Proceedings of the 6th International Slag ...
2019-7-20 · furnace, nickel slag is granulated with water jets, forming 1.6 mm particles (D80). The mineral composition is glass 64%, fayalite 32%, magnetite 2.5% and small quantities of nickel sulphides and metallic nickel. The chemical composition of copper and nickel slags are shown in Table 1. Table 1: Chemical composition (wt%) of copper and nickel ...
دردشة على الإنترنت
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.
دردشة على الإنترنت
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.
دردشة على الإنترنت
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,
دردشة على الإنترنت
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 ...
دردشة على الإنترنت
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.
دردشة على الإنترنت
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).
دردشة على الإنترنت
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
دردشة على الإنترنت
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
دردشة على الإنترنت
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
دردشة على الإنترنت
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 ...
دردشة على الإنترنت
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.
دردشة على الإنترنت
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 ...
دردشة على الإنترنت