iron ore from copper slag

Extraction of iron from copper-plant slag SpringerLink

2017-1-5  In the production of copper from sulfide ore, slag accumulates at the processing plant. In the present work, the phase transformations that occur in such slag during its reduction by the gasification products of carbon at 1100 and 1200°C are investigated. Experiments show that most of the iron present in such slag may be converted to metallic form by the gasification products of carbon in ...

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Recovery of iron from copper slag by deep reduction and ...

2013-11-20  Aiming at recovering iron from high-iron-content copper slag, this article introduced a combination technology of deep reduction and magnetic beneficiation, investigated the iron recovery efficiency and optimized the technical conditions. When coke powder with 86wt% fixed carbon was used as a reductant, iron was successfully extracted from the copper slag. Under the optimized condition of

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RECOVERY OF PIG IRON FROM COPPER SMELTING SLAG

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 iron oxide and silica. These exist in copper slag mainly in the form of fayalite (2FeO SiO2).

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Recovery of Iron from Copper Slag Using Coal-Based

The Fe3O4 and Fe2SiO4 in copper slag were successfully reduced to metallic iron by coal-based direct reduction. Under the best reduction conditions of 1300 °C reduction temperature, 30 min reduction time, 35 wt.% coal dosage, and 20 wt.% CaO dosage (0.75 binary basicity), the Fe grade of obtained iron concentration achieved 91.55%, and the Fe recovery was 98.13%.

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Iron Recovery from Discarded Copper Slag in a RHF Direct ...

At present, copper production in China mainly comes in a pyrometallurgical process. Generally, for one ton of copper, 2.2 tons of discarded copper slag is generated, and in China, the amount of discharging copper slag exceeds 10 million tons per year [], with the accumulated amount of copper slag over the years exceeding 120 million tons [].Iron can reach about 48 million tons in this copper ...

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Chapter 6 Copper Production Technology

1996-11-20  ore flux \ m The Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows. By the end of the smelt the copper had separated from the slag, which was tapped off.

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RECOVERY OF COPPER FROM COPPER SLAG AND

2014-9-8  where the leaching of copper smelter slag with sulphuric acid (500 kg/Mg slag) resulted in copper and iron extractions of 20% and 52%, respectively, at 20oC, whereas the maximum copper and iron extractions were 60% and 90%, respectively, at 90oC. Also, based on the results depicted in Figure 2 and 3, it can be concluded that

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Effect of CaO Addition on Iron Recovery from Copper ...

To recover iron from copper smelting slag using carbon, Heo et al. [14] also found that the iron recovery could be increased by the addition of CaO if the CaO content was less than 20 wt.% but ...

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An Overview of Recovery of Metals from Slags

2021-11-14  Approximately 2.0–3.0 t of copper slag (CS) containing 35%–45% iron is generated for every ton of copper produced during the pyrometallurgical process from copper concentrate.

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Extraction of iron from copper-plant slag SpringerLink

2017-1-5  In the production of copper from sulfide ore, slag accumulates at the processing plant. In the present work, the phase transformations that occur in such slag during its reduction by the gasification products of carbon at 1100 and 1200°C are investigated. Experiments show that most of the iron present in such slag may be converted to metallic form by the gasification products of carbon in ...

Read More

Recovery of iron from copper slag via modified roasting in ...

2020-6-4  In addition, it contains about 35–45 wt.% of iron, which indicates that the grade of iron in copper slag is much higher than that of ordinary iron ore . Therefore, the recovery ratio of iron in copper slag is an important index for comprehensive recovery and utilization of copper slag resources.

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RECOVERY OF PIG IRON FROM COPPER SMELTING SLAG

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 iron oxide and silica. These exist in copper slag mainly in the form of fayalite (2FeO SiO2).

Read More

Recovery of iron from copper slag by deep reduction and ...

2013-11-20  Aiming at recovering iron from high-iron-content copper slag, this article introduced a combination technology of deep reduction and magnetic beneficiation, investigated the iron recovery efficiency and optimized the technical conditions. When coke powder with 86wt% fixed carbon was used as a reductant, iron was successfully extracted from the copper slag. Under the optimized condition of

Read More

(PDF) Recovery of pig iron from copper smelting slag by ...

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 ...

Read More

Iron Recovery from Discarded Copper Slag in a RHF Direct ...

At present, copper production in China mainly comes in a pyrometallurgical process. Generally, for one ton of copper, 2.2 tons of discarded copper slag is generated, and in China, the amount of discharging copper slag exceeds 10 million tons per year [], with the accumulated amount of copper slag over the years exceeding 120 million tons [].Iron can reach about 48 million tons in this copper ...

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Recovery of Iron from Copper Flash Smelting Slags ...

A large amount of waste copper slag containing about 35–45 wt.% iron is generated every year from pyrometallurgical processes for producing copper from copper concentrate. Recovery of iron from ...

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

2003-11-1  The copper slag generated at Kure, has been investigated by Acma et al. (1997) for the recovery of copper, cobalt and production of magnet grade iron oxide by pyro-hydrometallurgical route. The fayalitic slag analysing about 0.8% Cu and 0.4% Co is reduced with coke/graphite in a DC arc furnace to yield a liquid alloy rich in iron containing ...

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Effect of CaO Addition on Iron Recovery from Copper ...

To recover iron from copper smelting slag using carbon, Heo et al. [14] also found that the iron recovery could be increased by the addition of CaO if the CaO content was less than 20 wt.% but ...

Read More

An Overview of Recovery of Metals from Slags

2021-11-14  Approximately 2.0–3.0 t of copper slag (CS) containing 35%–45% iron is generated for every ton of copper produced during the pyrometallurgical process from copper concentrate.

Read More

Extraction of iron from copper-plant slag SpringerLink

2017-1-5  In the production of copper from sulfide ore, slag accumulates at the processing plant. In the present work, the phase transformations that occur in such slag during its reduction by the gasification products of carbon at 1100 and 1200°C are investigated. Experiments show that most of the iron present in such slag may be converted to metallic form by the gasification products of carbon in ...

Read More

An Overview of Recovery of Metals from Slags

2021-11-14  Approximately 2.0–3.0 t of copper slag (CS) containing 35%–45% iron is generated for every ton of copper produced during the pyrometallurgical process from copper concentrate.

Read More

(PDF) Recovery of pig iron from copper smelting slag by ...

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 ...

Read More

Effect of CaO Addition on Iron Recovery from Copper ...

To recover iron from copper smelting slag using carbon, Heo et al. [14] also found that the iron recovery could be increased by the addition of CaO if the CaO content was less than 20 wt.% but ...

Read More

Iron Recovery from Discarded Copper Slag in a RHF Direct ...

At present, copper production in China mainly comes in a pyrometallurgical process. Generally, for one ton of copper, 2.2 tons of discarded copper slag is generated, and in China, the amount of discharging copper slag exceeds 10 million tons per year [], with the accumulated amount of copper slag over the years exceeding 120 million tons [].Iron can reach about 48 million tons in this copper ...

Read More

Recovery of Iron from Copper Flash Smelting Slags ...

A large amount of waste copper slag containing about 35–45 wt.% iron is generated every year from pyrometallurgical processes for producing copper from copper concentrate. Recovery of iron from ...

Read More

Chapter 6 Copper Production Technology

1996-11-20  ore flux \ m The Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows. By the end of the smelt the copper had separated from the slag, which was tapped off.

Read More

RECOVERY OF PIG IRON FROM COPPER SMELTING SLAG

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 iron oxide and silica. These exist in copper slag mainly in the form of fayalite (2FeO SiO2).

Read More

Study on Recovering Iron from Smelting Slag by ...

In order to recover the iron in copper smelting slag quenched with water in smelters, carbothermic reduction was adopted to reduce the iron oxide existing in different phase such as fayalite,vitreous and magnetite in the slag to metal iron. In the optimum conditions, it was demonstrated that the metallization efficiency of iron could reach more than 86.1%.

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Electrodeposition of Iron in HNO3 Solution Containing

2019-12-1  Iron was electrochemically deposited from copper slag including more than 40 wt% subsequently following the entire dissolution of iron-based alloy, which was thermally reduced from copper slag, in the concentrated HNO 3 solution at 80°C. The iron-based alloy contained 98.1 wt% iron and 1.75 wt% copper as major elements.

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