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copper slag furnace slag copper

Recovery of Copper from Copper Blast Furnace Slag

Secondary copper blast furnace slag was treated with carbon to derive the conditions for maximum recovery of copper with minimum simultaneous reduction of iron oxide.

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Minimization of Copper Losses in Copper Smelting Slag

Taking this into account, the current authors believe an overall copper level in discard slag between 0.7 wt.% and 0.8 wt.% can be obtained with optimal operating conditions. For these conditions,...

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Improving Beneficiation of Copper and Iron from Copper

Modification of Copper Slag The modification and slow cooling of copper slag was conducted in a MoSi2electric furnace under the high purity N2(nitrogen) flow of 10 L/min. In the study, the copper slag was crushed to below 0.15 mm by a hammer and a pulverizer.

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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.

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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 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 in the range of

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Improving Beneficiation of Copper and Iron from Copper

2.1.1. Copper Slag The copper slag used in the experiments is a byproduct generated during the cleaning of electric furnace slag and refining of copper in Tongling Non-ferrous Metals Group Holding Co., Ltd (Tongling, China). As shown in Table1, the main chemical compositions contained in the waste slag are 42.85 wt. %

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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.

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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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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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Enhancing the flotation recovery of copper minerals in

Jan 01, 2020 The slags produced from the NCS furnaces (TSL furnace, copper converter, reverberatory furnace) contain copper ranging between 0.8 to 5% w/w. Due to this high content of copper, the slags are milled and floated to recover the copper. The main drawback in the current process is that the final flotation tailings grades are in excess of 0.9% Cu.

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Archaeologists Find Oldest Furnace Copper Smelting History

Oct 12, 2020 “The surprising finds include a small workshop for smelting copper with shards of a furnace—a small installation made of tin in which copper ore was smelted—as well as a lot of copper 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 containing 0.22% Co on its own, the maximum cobalt recovery that could be obtained was 66%, with a cobalt value of 0

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Copper Launders TENOVA

Water-cooled copper launders use the freeze lining principle to reduce component wear. Lower wear means longer launder life, cutting long-term maintenance costs and downtime production losses. Many launder designs present an inherent safety risk by positioning the water cooling passages underneath the slag

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What is a Copper Slag? (with pictures) Info Bloom

Jan 28, 2021 Copper slag is a by-product created during the extraction of copper from copper ore. Copper slag has also gained popularity in the building industry for use as a fill material. Unlike many other fill materials, it poses relatively little threat to the environment.

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Copper extraction Wikipedia

The reverberatory furnace acts to allow these species to approach chemical equilibrium at the furnace operating temperature (approximately 1600 °C at the burner end of the furnace and about 1200 °C at the flue end; the matte is about 1100 °C and the slag is about 1195 °C). In this equilibration process, oxygen associated with copper

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In the extraction of copper, the slag formed in the blast

In the extraction of copper, the slag formed in the blast furnace is: A. Copper is extracted from the ore copper pyrite by smelting in a blast furnace. The flux used and the slag formed are : View solution. Solidified C u obtained from the reverberatory furnace has blistered appearance. This is due to:

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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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RECOVERY OF COPPER FROM COPPER SLAG AND COPPER

Recovery of copper from copper slag and copper slag flotation tailings 75by oxidative leaching Table 1. Chemical compositions of the copper smelter slag and the slag flotation tailings Constituent Content (wt.%) Copper Slag Slag Flotation Tailings Cu total 0.97 0.59 Cu oxides 0.15 0.06 Cu sulphides 0.82 0.53 SiO 2 33.75 34.62 Al 2 O

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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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Copper Slag for the Recovery of Metals and Valorisation of

The chemical composition of copper slag depends on the treatment process and furnace type, and is typically 30–40% Fe, 35–40% SiO 2,10% Al 2 O 3,10% CaO, and 0.5–2.1% Cu [2]. A significant portion of the produced slag is stockpiled [1], an option that may result in

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Improving Beneficiation of Copper and Iron from Copper

2.1.1. Copper Slag The copper slag used in the experiments is a byproduct generated during the cleaning of electric furnace slag and refining of copper in Tongling Non-ferrous Metals Group Holding Co., Ltd (Tongling, China). As shown in Table1, the main chemical compositions contained in the waste slag are 42.85 wt. %

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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.

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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 is obtained in the process of metallurgical con-

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What is a Copper Slag? (with pictures) Info Bloom

Jan 28, 2021 Copper slag is a by-product created during the extraction of copper from copper ore. Copper slag has also gained popularity in the building industry for use as a fill material. Unlike many other fill materials, it poses relatively little threat to the environment.

get price

Copper Slag Furnace Slag Copper praha-dermatologie.cz

Minimization of Copper Losses in Copper Smelting Slag. Nov 01, 2012 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.

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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.

get price

Copper Launders TENOVA

Water-cooled copper launders use the freeze lining principle to reduce component wear. Lower wear means longer launder life, cutting long-term maintenance costs and downtime production losses. Many launder designs present an inherent safety risk by positioning the water cooling passages underneath the slag

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PHYSICOCHEMICAL CHARACTERIZATION OF COPPER

discussion of slag cleaning is only relevant to sulphide smelters [8, 9]. Two cleaning techniques are in common use in sulphide smelters, electric furnace processing under reducing conditions and slow cooling and flotation. Metals recovered include copper, gold, nickel, cobalt and PGM’s [10, 11]. 3.

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Reduction of Magnetite from Copper Smelting Slag using

reduction of copper slag were discussed by Zuo, et al., and experiments of the reduction of copper slag were carried out using biomass.13) In current study, experiments were carried out in a slag cleaning electric furnace to compare the reduction perfor-mance and economic benefit of the magnetite reduction in

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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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Copper Slag TECHNOBLAST WORKSHOPS

Copper slag is an abrasive blasting grit made of granulated slag from metal smelting process ( also call iron silicate). Copper Slag abrasive is suitable for blast cleaning of steel and stone/concrete surfaces, removal of mill scale, rust, old paint, dirt etc. Suitable for SA-3, SA-21/2 and SA-2.

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