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Flotation of copper sulphide from copper smelter slag

Oct 10, 2015· Copper slag is produced during pyrometallurgical production of copper from copper ores. For every tone of metal production about 2.2 t of slag is generated. Dumping or disposal of such huge quantities of slag cause environmental and space problems.

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The Recovery of Copper from Smelting Slag by Flotation

Up to10%cash back· Feb 08, 2017· Abstract Aiming at the recovery of copper from smelting slag, a flotation approach was studied. It was found that this slag composed of fine particles with complex association and distribution, in which bornite was the main copper-bearing mineral after a detailed mineralogy analysis via polarizing microscope, SEM and XRD.

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Optimization of the flotation of copper smelter slags from

The slags contain a copper content ranging between 0.8 to 5% copper. The slags cannot be discarded due to the high content of copper and hence they are sent to a milling and flotation plant (Slag Mill Plant) for liberation and recovery of copper.

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Enhancing the flotation recovery of copper minerals in

Jan 01, 2020· The copper content of the slags range between 0.8 to 5 wt. % and this is considered too high for disposal to the environment. Currently, the slags are sent to a milling and flotation plant for liberation and recovery of residual copper.

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RECOVERY OF COPPER FROM COPPER SLAG AND COPPER

Abstract: Copper smelter slag and copper smelter slag flotation tailings were leached using sulphuric acid solutions, without or with the addition of either ferric sulphate or hydrogen peroxide. Copper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings.

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Recovery of metal values from copper slags by flotation

A fayalitic-type of ancient copper slag containing 1.24% Cu, 0.53% Co and 53.16% Fe were subjected to an experimental study. Two different routes were followed to recover the metal values. The...

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COMPARATIVE RESULTS OF COPPER FLOTATION FROM

Production of copper concentrate by flotation of smelter slag has started in 2001. Flotation concentrate goes to the Copepr Smelter once more for production of cop- per cathodes and the rough flotation tailings go to the flotation tailing dump. Copper recoveries in the flotation process of smelter slag reaches the value of about 45- 50%.

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Utilization of flotation wastes of copper slag as raw

Copper slag wastes, even if treated via processes such as flotation for metal recovery, still contain heavy metals with hazardous properties posing environmental risks for disposal. This study reports the potential use of flotation waste of a copper slag (FWCS) as iron source in the production of Po

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Recovery of metal values from copper slags by flotation

For an air-cooled slag at optimized conditions, 72% of copper was recovered in one stage flotation and a 12.6% copper concentrate was achieved. The best recovery efficiency was obtained when 30 g

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Copper Recovery Through Smelter Slag Flotation in Atacama

Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. This study consisted of the physical, chemical, and mineralogical characterization of the copper slag, along with preliminary flotation tests. This article focuses on industrial flotation, which consisted of two one-year campaigns

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COMPARATIVE RESULTS OF COPPER FLOTATION FROM

Production of copper concentrate by flotation of smelter slag has started in 2001. Flotation concentrate goes to the Copepr Smelter once more for production of cop-per cathodes and the rough flotation tailings go to the flotation tailing dump. Copper recoveries in the flotation process of smelter slag reaches the value of about 45- 50%.

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Recovery of metal values from copper slags by flotation

Feb 01, 2007· The second route was flotation of the slags, roasting of the flotation tailings with pyrite and leaching. The second route was found to be suitable for the treatment of the copper slag studied. In the flotation step, a copper concentrate containing approximately 11% Cu was produced with a 77% recovery while 93% of the cobalt stayed in the tailings.

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2-Recovery of Copper and Cobalt from Converter Slag with

Key words: Converter slag, flotation, copper, cobalt, sulphurization. 1. Introduction Copper slag is produced in large amounts in seven copper smelter plants in Chile, and it is estimated that around 4 million tons of slag are disposed every year and another

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Copper Slag Flotation Process

Copper Slag Flotation. Copper Slag Milling And Flotation Process Enhancing the flotation recovery of copper minerals in 01012020183 The following was used during the milling test work on the slag samples a laboratory scale ball mill 400 mm by 300 mm a Laarmann laboratory slurry press size 13 for slurry filtration a 1 0 L measuring cylinder for measuring and adding water a drying oven to dry

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[PDF] Recovery of copper from the copper slag and copper

Copper smelter slag and copper smelter slag flotation tailings were leached using sulphuric acid solutions, without or with the addition of either ferric sulphate or hydrogen peroxide. Copper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings. Hydrogen peroxide was determined to be the best lixiviant.

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Copper in solidified copper smelter slags

Mineralogical composition and morphology of copper in slags, important for slag flotation, is finally formul ated in s olidification and cooling of slag. Only metallic and sulphide particles can be flotated from ground slag, valu able metals dissolved in slag are not recoverable by froth flotation. On the other hand small particles not exposed in

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SUSTAINABILITY OF COPPER SLAG PROCESSING FROM

represents the processing of copper slag by flotation. Keywords: flash smelting, copper slag, recycling, flotation, RTB Bor Introduction RTB Bor (Rudarsko-topioničarski basen Bor), as an integrated copper mining and metallurgy company, is located in Bor, Serbia. A century ago the town of

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TACKLING IMPURITIES IN COPPER CONCENTRATES

Copper and mercury results at the continuous pilot scale confirmed those obtained in batch testing. Gold recovery from the pilot leach residue was also assessed with elemental sulphur flotation of the residue offering 85% recovery of the precious metals to the flotation concentrate and the most favorable net

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THE EFFECT OF COOLING RATE OF SLAG FROM PRIMARY

Apr 05, 2015· Mihajlović The effect of cooling rate of slag from primary copper production 129 In Table 1 an overview is given of copper content in flotation tailings in smelters which process slag by flotation. Table 1. Copper content in flotation tailings in different smelters Smelter %Cu Almalykskii, Russia 0,27 Garfield, USA 0,48 Guixi, China 0,50

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Recovery of Copper and Silver by Flotation from Smelting

The recovery of copper from smeltery furnace slag by flotation has been studied. By analysis the slag containing 1.61% copper and 27.80g/t silver is available to recovery. The effective factors such as particle size, the amount and type of collector were examined. The combination of the collectors was also examined. With the process utilized in this work, a copper concentrate of 26.47% Cu with

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Copper extraction Wikipedia

Slag is less dense than matte, so it forms a layer that floats on top of the matte. Copper can be lost from the matte in three ways: as cuprous oxide (Cu 2 O) dissolved in the slag, as sulfide copper dissolved in the slag or as tiny droplets (or prills) of matte suspended in the slag.

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Utilization of flotation wastes of copper slag as raw

Copper slag wastes, even if treated via processes such as flotation for metal recovery, still contain heavy metals with hazardous properties posing environmental risks for disposal. This study reports the potential use of flotation waste of a copper slag (FWCS) as iron source in the production of Po

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Recovery of metal values from copper slags by flotation

Feb 01, 2007· The second route was flotation of the slags, roasting of the flotation tailings with pyrite and leaching. The second route was found to be suitable for the treatment of the copper slag studied. In the flotation step, a copper concentrate containing approximately 11% Cu was produced with a 77% recovery while 93% of the cobalt stayed in the tailings.

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US4022686A Flotation process for copper ores and copper

A flotation process in which copper ores or copper converter slags are ground and firstly have added thereto benzotriazole or alkyl benzotriazole as an activator and secondly one or more collectors selected from the group consisting of xanthates, dithiophosphates, thiocarbamate esters, dithiocarbamates, mercaptans and dixanthogens and further, if desired, a promoter such as kerosene, light oil

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Recovery of Copper from Copper Smelter Slag by Flotation

The recovery of copper from copper smelter slag utilizing flotation has been studied. A copper smelter slag from the Wang Jiaqiao smelter in Yunnan Province of china, containing 2.76% Cu, 44.41% Fe, 2.34% Zn and 18.4g/t Ag and so on, has been used .The effective factors such as grinding fineness, pH, and the dosage and type of collector were examined.

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Copper in solidified copper smelter slags

Mineralogical composition and morphology of copper in slags, important for slag flotation, is finally formul ated in s olidification and cooling of slag. Only metallic and sulphide particles can be flotated from ground slag, valu able metals dissolved in slag are not recoverable by froth flotation. On the other hand small particles not exposed in

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[PDF] Recovery of copper from the copper slag and copper

Copper smelter slag and copper smelter slag flotation tailings were leached using sulphuric acid solutions, without or with the addition of either ferric sulphate or hydrogen peroxide. Copper extraction from the slag was typically found to be twice as high as that from the slag flotation tailings. Hydrogen peroxide was determined to be the best lixiviant.

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Energy and Environmental Profile of the U.S. Mining Industry 5

copper recovery. Tailings from flotation of copper slag are a second RCRA special waste. Traditionally, reverberatory furnaces have been the most common furnaces used for smelting, however, they are being replaced by electric or flash furnaces, which are more energy efficient. Reverberatroy furnaces also produce large volumes of

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SUSTAINABILITY OF COPPER SLAG PROCESSING FROM

represents the processing of copper slag by flotation. Keywords: flash smelting, copper slag, recycling, flotation, RTB Bor Introduction RTB Bor (Rudarsko-topioničarski basen Bor), as an integrated copper mining and metallurgy company, is located in Bor, Serbia. A century ago the town of

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Management of copper pyrometallurgical slags: giving

the classical processes of flotation and pyrometallurgical extraction. Seven copper smelter plants, materials from copper slag. Recovery of copper, molybdenum, precious metals, silica and iron, that is the most abundant component of the slag, are the goals for this research. Metals,

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TACKLING IMPURITIES IN COPPER CONCENTRATES

Copper and mercury results at the continuous pilot scale confirmed those obtained in batch testing. Gold recovery from the pilot leach residue was also assessed with elemental sulphur flotation of the residue offering 85% recovery of the precious metals to the flotation concentrate and the most favorable net

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SHIFTING GEARS TO A CLIMATE-NEUTRAL & RESOURCE

The major phases being identified follow the ones met in the slag flotation feed. The lower content of copper-bearing minerals is a direct consequence of the high copper grade in the FFC. The increase of Ni in the final tailings could be explained by its elevated concentration inside magnetite and residual copper

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Copper extraction Wikipedia

Slag is less dense than matte, so it forms a layer that floats on top of the matte. Copper can be lost from the matte in three ways: as cuprous oxide (Cu 2 O) dissolved in the slag, as sulfide copper dissolved in the slag or as tiny droplets (or prills) of matte suspended in the slag.

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12.3 Primary Copper Smelting

Pine oils, cresylic acid, and long-chain alcohols are used for the flotation of copper ores. The flotation concentrates are then dewatered by clarification and filtration, resulting in 10 to 15 percent water, 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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Recovery of Copper and Silver by Flotation from Smelting

The recovery of copper from smeltery furnace slag by flotation has been studied. By analysis the slag containing 1.61% copper and 27.80g/t silver is available to recovery. The effective factors such as particle size, the amount and type of collector were examined. The combination of the collectors was also examined. With the process utilized in this work, a copper concentrate of 26.47% Cu with