copper slag furnace slag copper

copper slag furnace slag copper

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 ...

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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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Minimization of Copper Losses in Copper Smelting Slag ...

Sep 21, 2012  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 0.8–1.0 wt.%.

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How to Recover Copper from Slag by Flotation

Feb 03, 2021  Recovery of copper in concentrates from slags cooled in the induction furnace and ground for 30 minutes ranged from 87.1 to 96.2 percent with the best recovery obtained on the highest grade slag sample. Copper content of the flotation tailings, which is the most important indicator, ranged from 0.26 to 0.39 percent.

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Recovery of Copper from Slow Cooled Ausmelt Furnace Slag ...

Ausmelt furnace slag contains about 0.9% Cu (mass %). With increasing the amount of Ausmelt furnace slag, the recovery of copper from it will produce an enormous economic yield. The recovery of copper by floatation from slow cooled Ausmelt furnace slag was studied in this paper. The phases and composition of the slow cooled slag were analyzed.

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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 to the matte.

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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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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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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 along with high consumption of electrical energy and water, selection of a method to enable minimum energy consumption and maximum

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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.

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Recovery of Copper from Reverberatory Copper Slag and ...

possible option. The copper slag contains a high content of silica and iron. The solution final pH is the most important factor affecting the removal of iron and silica from the leach solution and the overall metal recovery. Fe removal from the leaching of copper slag is done by the formation of a metal hydroxide.

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

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Minimization of Copper Losses in Copper Smelting Slag ...

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 controlling the Fe/SiO 2 ratio in the smelting furnace slag at ≤1.5. In addition, magnetite reduction needs to be performed ...

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Improvement of Carbothermic Reduction of Copper Smelting ...

Nov 06, 2021  Download Citation Improvement of Carbothermic Reduction of Copper Smelting Slag and Valuable Constituents Recovery In order to comprehensively utilize copper smelting slag

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milling and flotation of slow cooled copper slag

Recovery of Copper from Slow Cooled Ausmelt Furnace . Ausmelt furnace slag contains about 0.9% Cu (mass %). With increasing the amount of Ausmelt furnace slag, the recovery of copper from it will produce an enormous economic yield. The recovery of copper by floatation from slow cooled Ausmelt furnace slag was studied in this paper.

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A STUDY ON REDUCTION OF COPPER SLAG FROM THE

concentration of copper oxide in the slag is approx. 0,003 % mass, i.e. it is markedly lower than its fi nal level in the slag that is a product of a technological process. The ther-modynamic analysis has showed that at equilibrium, the slag PbO reduction practically begins when the copper (as Cu 2 O) level in the slag is lower than 3 % mass. In

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Copper Slag Grit : Wholesale Buyers Importers ...

Sell your Copper Slag Grit to wholesale international Copper Slag Grit buyers. Page - 1. Help Contact Customer Support; Your Feedback Forgot Password go4WorldBusiness QA Korean: 한국 고객을 위한 Call +1-833-752-7161 Call Us ...

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A Study on Reduction of Copper Smelting Slag by Carbon for ...

Jan 17, 2020  The copper slag is produced during manufacturing of copper that for every ton of copper production about 2.2 tons of copper slag is generated and 1.5 million tons of copper slag is generated in Korea every year [1-5]. Dumping or disposal of copper slag causes wastage of metal values and leads to environmental problems.

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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 sulfide.

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Minimization of Copper Losses in Copper Smelting Slag ...

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 0.81.0 wt.%.

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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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A STUDY ON REDUCTION OF COPPER SLAG FROM THE

concentration of copper oxide in the slag is approx. 0,003 % mass, i.e. it is markedly lower than its fi nal level in the slag that is a product of a technological process. The ther-modynamic analysis has showed that at equilibrium, the slag PbO reduction practically begins when the copper (as Cu 2 O) level in the slag is lower than 3 % mass. In

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INVESTIGATION ON POSSIBLE USE OF PALM NUTSHELLS AS ...

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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milling and flotation of slow cooled copper slag

Recovery of Copper from Slow Cooled Ausmelt Furnace . Ausmelt furnace slag contains about 0.9% Cu (mass %). With increasing the amount of Ausmelt furnace slag, the recovery of copper from it will produce an enormous economic yield. The recovery of copper by floatation from slow cooled Ausmelt furnace slag was studied in this paper.

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Ferrous Slag - an overview ScienceDirect Topics

Jun 10, 2008  Ravindra K. Dhir OBE, ... Chao Qun Lye, in Sustainable Construction Materials: Copper Slag, 2017. 6.1 Introduction. Under the slag families, two broad classifications can be made— ferrous slags and non-ferrous slags, and copper slag (CS) belongs to the latter category. The former category includes iron and steel slags and has a long service record in geotechnical applications, dating back to ...

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CN101787407B - Method for reducing and extracting copper ...

The invention relates to a method for reducing and extracting copper smelting waste slag through microwave carbon heating, which comprises the following steps: pulverizing copper slag, reducing agents (one material or a mixture of several materials in anthracitic coal, graphite, refinery coke and coke) and calcium oxide or calcium carbonate; mixing the ingredients; adding binding agents for ...

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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 Smelting Slag Recovery- - metalcess

Rotary Reverberatory Furnace Smelting. The furnace can be designed with effective working volume minimal 0.15m3, suitable for the recovery of anode slime, PM-containing smelting slag, lead refining dross and all kinds of dust. It can also treat secondary material like scrap copper, WEEE/PCB/IC and etc. Lead Anode Slime.

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Modeling and Control of Copper Loss in Smelting Slag

holding furnace (RHF) slag, which were experienced at the Xstrata Cop- ... drop copper content in slag from 0.6 to 0.5%. The chemical soluble copper loss in RHF slag is about 0.2%

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(PDF) Recovery of iron from copper slag Urtnasan ...

Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and the furnace type. Main components of copper slag are

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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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Copper Slag Grit : Wholesale Buyers Importers ...

Sell your Copper Slag Grit to wholesale international Copper Slag Grit buyers. Page - 1. Help Contact Customer Support; Your Feedback Forgot Password go4WorldBusiness QA Korean: 한국 고객을 위한 Call +1-833-752-7161 Call Us ...

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