Treatment of Residues from the Copper Industry with an …

Induction furnaces display the most commonly used vessel for the direct recycling of copper residues. The copper content of the input materials should be above 97% in order to prevent the formation of slag, which can have a …

Induction Furnace Melting

The melting process of induction furnace is relatively simple. Taking smelting alloy steel as an example, after tapping of the previous furnace, furnace body shall be maintained first, including cleaning residue, checking erosion, and repairing furnace lining, and then furnace burden should be prepared and loaded for melting.

Comprehensive review on metallurgical recycling and …

To decrease the copper loss, a cleaning furnace (e.g. electric slag-cleaning furnace, rotary slag-cleaning furnace) is applied after the pyrometallurgical process, …

Electric Slag Cleaning Furnace

With 's Outotec Electric Slag Cleaning Furnace, the cleaning of smelting furnace slag is carried out using surface coke reduction in an electric furnace. The circular or rectangular electric furnace is operated in batches and equipped with three or more Söderberg electrodes.

Minimization of Copper Losses in Copper Smelting Slag During Electric

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 …

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 …

(PDF) Refractory Usage In Induction Melting

A 3kg capacity Electric induction furnace with a power rating of 2500W for heat treatment of ferrous and non-ferrous alloys was developed. The furnace which is made from mild steel sheet was monolithically lined with fire clay refractories …

Copper Smelting Slag Cleaning in an Electric Furnace by …

Process of Copper Slag Reduction in an Electric Furnace and …

Key to implementing modifications aimed at improving the copper slag reduction process is a thorough understanding of its kinetics and thermodynamics. Electric resistance furnaces are used for this process, and for more intensive copper removal, arc resistance furnaces are used.

Benefits of Using Induction Furnaces for Melting Copper

Induction furnaces have emerged as a game-changer in the realm of copper melting, offering a versatile and efficient solution for foundries.This article explores the advantages and benefits of using induction furnaces specifically designed for copper melting, shedding light on their power regimes, reliability, cleanliness, and energy efficiency.

INNOVATIVE TECHNOLOGIES FOR COPPER SMELTING …

Electric slag cleaning furnace, Electrode seal, NovaLance™, SlagFlo™, Top submerged lance furnace ... The lance is currently on site ready for testing on a primary copper smelting TSL furnace ...

EFFECTS OF INDUCTION-FURNACE SLAG ON …

Induction furnace slag is a basic slag that is different from blast furnace slag which is an acidic slag. Therefore, IFS is non-toxic, non-poisonous and non-corrosive, compared to the acidic BFS ...

Recovery of Copper, Lead and Zinc from Copper Flash Converting Slag …

The optimum slag cleaning conditions were determined as follows: reductive agent coke dosage of 6%, 2% pyrite addition of converter slag weight and smelting at 1350°C for 3 h. ... copper-zinc concentrate and matte of the blast furnace on the content of copper and magnetite in converter slags. The content of Cu in the slag was decreased from 2. ...

Reduction of Magnetite from Copper Smelting Slag in the …

Abstract Through the reduction reaction of Fe3O4 and graphite rod, the viscosity of slag was reduced and the settlement of matte in slag was promoted. The reduction of Fe3O4 in copper slag by a graphite rod was studied and the kinetics of the reduction process analyzed. The results show that the content of Fe3O4 decreased with increase in reduction temperature …

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 During Electric

The produced slag from each of the two slag blows is transferred to the slag cleaning furnaces (along with flash furnace slag) for cleaning prior to discharge, while the high copper slag from the ...

Modelling of copper (I) oxide reduction in a …

Reduction of copper oxide is an important step of metal recovery and slag cleaning in copper production. This can be achieved by slag treatment with injected reducing agents.

Cupola Furnace Slag: Its Origin, Properties and Utilization

A cupola furnace is the most frequently used furnace aggregate for cast iron production. A by-product of the production of cast iron in cupola furnaces is cupola slag. Its amount is 40–80 kg per 1 tonne of the produced cast iron, and that is one of the reasons why this material is not as favoured as, for example, the blast-furnace slag. The purpose of this article …

Control of Slag and Insoluble Build-up in Melting …

Melting Methods. Coreless Induction Furnaces: The coreless induction furnace is a refractory lined vessel with electrical current carrying coils that surround the refractory crucible. A …

Effect of the lining and smelting technologies on slag formation …

Eti Copper Inc. (EBI) flash furnace smelter slag containing 0.88 wt.%Cu and matte with ... The influence of metal holding under slag in the induction crucible furnace on the final sulfur content ...

Effect of the lining and smelting technologies on slag

Results are presented from studies of the reasons for the formation and growth of slag crusts in the crucibles of induction furnaces during the smelting of cast iron. It is established that crust formation and adhesion of slag to the furnace lining are caused by interaction of the lining material with reactants in the melt. The degree of slag incrustation and …

Reclamation of Induction Furnace Slag by Separation of …

Reclamation of Induction Furnace Slag by Separation of Metal and Slag using Pulverizing System Mrunal V. Deshmukh Dr. A. G. Matani PG Student Associate Professor ... clean and well-controllable liquefying procedure contrasted with most different method for metal softening. Foundries utilize this kind of heater and now additionally more iron ...

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.

Improving the Efficiency of Refining Copper Scrap Melt Via …

Recycled scrap and waste are used in the production of copper and copper alloys. Cable scrap containing impurities of non-ferrous and ferrous metals is often used as copper scrap. Herein, we propose a novel steam-air oxidation method for the purification of copper alloys. In this method, the melt surface was blown with a steam-air mixture supplied to the …

Modelling of copper (I) oxide reduction in a copper slag …

Figure 1: Tuyere and purging plug arrangements in a slag cleaning furnace that are considered in the study. Figure 2: (a) Capillary plug integrated into furnace lining.

Selecting the Right Unit for Efficient Induction …

Channel furnaces were originally developed to melt brass but now are commonly used for copper, bronzes, zinc, aluminum and iron. Coreless furnaces are commonly used for virtually all metals. Channel furnaces …

Utilization of induction furnace steel slag in concrete as …

Yong chang et al. (2018) [16] utilized steel slag aggregates [16] as partial replacement for fine aggregate sand and reported an optimum replacement level of 20 % for better compressive strength.

(PDF) Recovery of Cobalt and Copper from Nchanga Mines Slag …

The induction furnace of 45KW power ... and furnace types on copper slag smelting in a DC are furnace were studied. ... Slag from an electric slag cleaning furnace was injected with methane and ...

Induction Furnace and Important Operational Aspects

The cooling system is normally a through one way flow system with the tubular copper coils connected to water source through flexible rubber hoses. ... It must be metallurgically clean, i.e. free from slag lumps, oxides etc., particularly for direct reduced iron, skull and ferro alloys. ... quality scrap in induction furnace for making good ...

Managing Coreless Induction Furnace Slag Build-Up

Fluxing of melting furnaces will eliminate slag build-up on coreless induction furnace sidewalls, improve slag fluidity, reduce melting costs by improving electrical efficiency, keep furnace volumes and ladles constant, and improve refractory life. What fluxes do is analogous to soap and water: Water alone will not clean grimy hands.