Copper Slag Furnace Slag Copper

Comparison of environmental performance of modern copper …

This fraction is significant because it affects heavily on the copper recovery during the slag cleaning phase. Basically, the fraction of oxide copper is dependent on the amount of sulfur present, which was kept fixed at 0.9%. The higher the oxidation degree and thus the copper content in slag, the higher the oxidized copper content as a ...

A novel slag cleaning method to recover copper from molten copper …

To recover copper from copper slag, a novel slag cleaning method was proposed. The thermodynamics and binary phase diagram of FeO–SiO 2 were calculated first. Then, the effects of experimental parameters on the reduction of Fe 3 O 4, recovery of copper, and slag cleaning mechanism were investigated.The results showed that the addition of SiO 2 …

A novel slag cleaning method to recover copper from …

To recover copper from copper slag, a novel slag cleaning method was proposed. The thermodynamics and binary phase diagram of FeO–SiO 2 were calculated first. Then, the …

Characterization and Recovery of Copper from Converter Copper Slag …

Converter copper slag can be viewed as an important secondary resource for valuable metals, considering its high commercial value. The current research investigates the recycling of copper by a combination of theoretical and experimental methods. Based on a modified Stokes equation, it was determined that copper droplets in the molten slag exhibited …

How to Recover Copper from Slag by Flotation

However, recovery of copper was about 4 percent lower for the high copper slag (sample C) and 23 percent lower for the low copper slag (sample A). Flotation tailings from the quenched slags ranged from 0.53 to 0.66 percent; slow-cooled slags gave tailings containing from only 0.26 to 0.39 percent copper with lowest analyses for 30-minute grinds.

Minimization of Copper Losses in Copper …

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 …

Efficient Recovery of Copper and Cobalt from the Matte–Slag …

During ISA copper smelting process, ISASMELT furnace discharges a large amount of matte and slag mixture and the separation of them has an important influence on the recovery of valuable metals. This paper presented a reduction-sulfurization sedimentation process for recovering copper and cobalt from the matte–slag mixture of ISA furnace. Firstly, …

Minimization of Copper Losses in Copper Smelting Slag …

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 dis-card 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.%.

Recovery of Copper from Copper Blast Furnace Slag

The maximum recovery of copper in alloy phase was obtained with 5% (by weight) initial carbon in the feed, 2% (by weight) CaO addition to the slag and a reducing temperature …

Use of waste copper slag, a sustainable material

The utilization of solid waste is the challenge for the civil and environmental engineers to utilize the waste from different industry to excel the sustainable development, and in the same time, it is matching with the cost concern of the present materials. Copper slag is a by-product obtained during smelting and refining of copper. The waste copper slag can be used …

Simulation and Validation of Thickness of Slag Crust on the Copper …

The blast furnace is the dominant high-temperature reactor in the modern ironmaking industry. Iron oxide in iron ores can be converted to metallic iron through blast furnace smelting, and this high-temperature melting can be used to separate the molten iron from the gangue components. The formation and thickness of the hot-surface slag crust on the …

(PDF) Minimization of Copper Losses in Copper …

this study, the minimum soluble copper content in the electric furnace slag is. expected to be near 0.55 wt.% Cu. This level does not account for a portion of. the copper present as mechanically ...

A comprehensive review on the recovery of copper values from copper slag

The fine-grained copper slag finds its applications in pavements, while the granulated one improves the stability of the asphalt mixtures. 3.1.3. Concrete. The pozzolanic activity of copper slag has been reported to be similar to that of fly ash [65]. The blended mixture of copper slag and cement exhibited similar properties to that of a ...

Cleaning of a copper matte smelting slag from a water-jacket furnace …

Cleaning experiments of a copper matte smelting slag from the water-jacket furnace was undertaken by direct reduction in a laboratory-scale electric furnace.The effects of coal-to-slag ratio, w, and the reduction time, t, were considered for two different coal/slag mixing procedures.In the first procedure, metallurgical coal was added to the molten slag, whereas in …

Effects of fluxing conditions on copper smelting slag …

extensively investigated. 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 0.6 - …

Alternatives of Copper (I) Oxide Reduction in a Copper Slag …

Hence, the recent trends of 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. The reduction of Cu 2 O from slags is carried out by adding carbon/coke or by injection of various reductants (e.g., different types of oil or natural ...

Recovery of valuable metals from copper slag

The copper smelting process produces plenty of copper slag every year, which is a hazardous solid waste, but a secondary resource. In the present study, the extraction of copper, nickel, and cobalt from copper slag was investigated through the process of sulfation roasting–water leaching and the process of sulfation roasting–sulfate decomposition …

Analysis of copper loss in slag in Tamano type flash smelting furnace

Pyrometallurgical production of molten copper generates two slags, smelting and converting. Smelting furnace slag typically contains 1%–2% Cu.

Comprehensive review on metallurgical recycling and …

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 …

[PDF] Minimization of Copper Losses in Copper Smelting Slag …

In the quest to achieve the highest metal recovery during the smelting of copper concentrates, this study has evaluated the minimum level of soluble copper in iron-silicate slags. The experimental work was performed under slag-cleaning conditions for different levels of Fe in the matte and for a range of Fe/SiO2 ratios in the slag. All experiments were carried out under …

Improved Settling Mechanisms of an Industrial Copper Smelting Slag …

During the pyrometallurgical extraction of copper, a significant source of copper loss is discarded slag. In 2021, the global smelter production of copper reached 21.4 million tons [], and the slag produced was approximately 2.2 tons per ton of copper [].The most considerable amounts of slag come from the smelting furnace and often have a copper content between 1 …

(PDF) 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 ...

Alternatives of Copper (I) Oxide Reduction in a Copper …

Alternatives of Copper (I) Oxide Reduction in a Copper Slag Cleaning Furnace Goran Vukovi´c, Anton Ishmurzin, Juergen Schmidl, Bojan Zivanovi´c, and Bernhard Handle Abstract As environmental, energy saving, and legislation considerations are becoming ever more important, there is evidently a demand for further improve-

Influences of silicate modulus and alkali content on …

To obtain a deeper understanding and enhance its practical application, the effects of silicate modulus and alkali content of water glass (WG) on the performances of alkali-activated blast furnace slag-copper slag (AAS-CS) are systematically investigated though the fluidity, setting time, hydration heat, compressive strength and drying ...

A Review of Comprehensive Utilization of Copper Slag of …

The electric furnace method, the vacuum depletion technology, and the electric field enrichment method are all physical ways to separate the copper in the copper slag; they have an effect on the metal droplets only but are not applicable to the copper oxide and copper sulfide in the copper slag.

Preparation of Black Ceramic Tiles Using Waste Copper Slag …

Copper slag and stainless steel slag of Electric Arc Furnace (EAF) are two typical metallurgical solid wastes, which contain a large number of valuables, such as Fe, Cr, and Cu. The transition metal elements in the waste slags, such as Cr and Fe, can be recycled as the coloring ions in the black ceramic tile. ...

A new method of full resource utilization of copper slag

At present, there are three different treatment methods for copper slag, namely beneficiation, smelting and chemical extraction. We have briefly collated some previous work on metallurgical slag treatment in Table 1, listing the treatment method, the type of reagents added, and the recovery efficiency of valuable elements.Besides, some researchers focus on …

Technologies for determining matte and slag levels in …

The production of copper is typically done through the smelting of concentrate. During the primary smelting process,the concentrate is typically processed into a higher purity matte …

Characterization of Fayalite from Copper Slags

Pyro-metallurgical copper slag (CS) waste was used as the source material for ultrasound (US) silica extraction under acidification processes with 26 kHz with HCl, HNO3, and H2SO4 at different ...

Co-utilization of electric arc furnace dust and copper slag …

The feasibility of preparing zinc ferrite from high-zinc electric arc furnace (EAF) dust and high-iron copper slag (CS) based on direct microwave roasting of the wastes together was assessed in this study, with a focus on the effect of microwave roasting temperature. According to the permittivity and permeability measurements of the raw ...