According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is studied, which supplies a new thinking for obtaining the ...

Any copper(I) oxide present will be converted into copper(I) sulfide during the smelting process because copper has a higher affinity for sulfur than it does for oxygen. for example: Cu 2 O + FeS → Cu 2 S + FeO. Impurities form a slag which floats on the surface and is easily removed. One of the reactions to remove iron impurities is shown below:

I) oxidation of pyrite smelting: pyrite oxidation with oxygen-enriched air bath smelting, the resulting copper-rich matte, gold, silver and other precious metals, the bottom of the furnace is discharged from the settling in the siphon mouth end of the furnace, the sulfur-containing, arsenic-containing low high iron smelting slag discharged from ...

the rate of copper slags smelting oxidation desulfurization depends on the matte mass transfer rate through the slag phase. After the oxidation treatment, sulfur of copper slags can be removed as SO2 efficiently. Amount of Ca2+ of copper slags affects the desulfurization rate greatly, and the slag desulfurization rate is reduced by adding a certain

Correlation dependences of magnetite and copper content in slags of products compositions (slag and matte) after autogenous smelting of sulphide copper - zinc concentrates in Vanyukov's furnace were determined by the statistic analysis method. It was defined the higher copper content in matte is, the bigger magnetite. share in slag is. In ...

Sep 09, 2015· The smelting of copper and lead in non-ferrous smelting, for instance, is designed to remove the iron and silica that often occurs with those ores, and separates them as iron-silicate-based slags.

RECOVERY OF PIG IRON FROM COPPER SMELTING SLAG BY REDUCTION SMELTING 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.

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%.

Copper processing - Copper processing - Roasting, smelting, and converting: Once a concentrate has been produced containing copper and other metals of value (such as gold and silver), the next step is to remove impurity elements. In older processes the concentrate, containing between 5 and 10 percent water, is first roasted in a cylindrical, refractory-lined furnace of either the hearth or ...

EFFECTS OF CaO, Al 2 O 3 AND MgO ON LIQUIDUS TEMPERATURES OF COPPER SMELTING AND CONVERTING SLAGS UNDER CONTROLLED OXYGEN PARTIAL PRESSURES B. Zhaoa,*, P. Hayesa, E. Jaka a The University of Queensland, School of Chemical Engineering, Brisbane, Australia (Received 12 August 2012; accepted 01 March 2013)

Increasing the utilization of copper tailing and flue gas desulfurization is significant for copper smelters. Copper tailing, derived from the copper production, was applied to flue gas desulfurization and increasing utilization of copper tailing and smelting gas with low concentrations of SO 2 by preparing slurries composed of copper tailing and water.

Smelting Smelting is a process of melting and separation of the charge into two or more immiscible liquid layers,which may be slag, matte, speiss or metal. The di!erent types of smelting are: (i) reduction smelting; (ii) matte smelting; and (iii) flash smelting

In the smelting process, either hot calcine from the roaster or raw unroasted concentrate is melted with siliceous flux in a smelting furnace to produce copper matte. The required heat comes from partial oxidation of the sulfide charge and from burning external fuel. Most of the iron and 10/86 (Reformatted 1/95) Metallurgical Industry 12.3-1

For copper metallurgy,Metalcess supplies low investment copper blast furnace for Copper ore/copper sulfide ore/copper-nickel sulfide ore smelting to produce copper anode. Contact Us ... smelting of copper/copper-nickel sulfide after sintering/desulfurization. ... normally less than 0.3% metal in slag; 6. Simple equipment and light investment ...

Abstract. According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is studied, which supplies a new thinking for obtaining the molten iron of lower sulfur content by smelting reduction of copper slags.

The Smelting and Converting El Teniente Process for copper concentrates as well as Slag Cleaning Furnace Technologies to treat slags coming out from the El Teniente Furnaces are widely applied today in Chile and around the world. Several industrial applications of this process have shown their capability to treat copper

Ferrous and non-ferrous smelting processes produce different slags. The smelting of copper, lead and bauxite in non-ferrous smelting, for instance, is designed to remove the iron and silica that often occurs with those ores, and separates them as iron-silicate-based slags.

Smelting Oxidation Desulfurization of Copper Slags. According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is studied, which supplies a new thinking for obtaining the molten iron of lower sulfur content by smelting reduction of copper slags.

Smelting Oxidation Desulfurization of Copper Slags ... According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is studied, which supplies a new thinking for obtaining the molten iron of lower sulfur content by smelting reduction of copper slags.

THE INFLUENCE OF THE SILICATE SLAG COMPOSITION ON COPPER LOSSES DURING SMELTING OF THE SULFIDE CONCENTRATES Ž. Živković*#, N. Mitevska**, I. Mihajlović* and Đ.Nikolić* *University of Belgrade, Technical Faculty Bor, 19210 Bor, Serbia

C is a sectioned crucible after smelting, which illustrates the sharp copper-slag separation possible under favorable conditions. Copper Refining. The copper recovered from smelting was contaminated with sulfur and iron and had a composition approximately the same as blister copper (table 7, …

Jan 14, 2015· In order to reasonably utilize the iron resources of copper slags, the smelting chlorination process was used to remove copper from copper slags. ... Smelting chlorination method applied to removal of copper from copper slags. Authors; ... HU Jian-hang, WANG Hua. Study on smelting oxidation desulfurization of copper slags [J]. Journal of Iron ...

[ePUB,Kindle,PDF] Free Download A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents eBoook for tablet kindle iPhone Android 1152

improvement and optimisation of the copper smelting process and its products. The slag samples were taken at different stages of the copper smelting process. Experimental investigation included the XRD, XRF and SEM techniques, which were also confirmed by the traditional wet chemistry analysis.

Request PDF on ResearchGate | Study on smelting reduction ironmaking of copper slag | According to the mechanism of smelting reduction, the process of smelting reduction ironmaking from copper ...

Sep 15, 2017· This chemistry video explains the important processes involved in extraction of metals i.e. Smelting, Roasting and Calcination. About us: We are a social enterprise working on a …

Three experiments are reduction of copper matte alone, reduction of copper matte in slag, and reduction of copper matte in alloy. Temperature is 1723 K. High-purity graphite powder (carbon content greater than 99.99%) was as reducing agent, and CaO (purity greater than …

A copper smelting process is disclosed in which copper concentrate is smelted in a furnace to produce purified copper. Flue gas discharged from the furnace is treated to produce sulfuric acid. Furthermore, waste liquid discharged during the production of sulfuric acid is treated to produce gypsum, and the gypsum thus produced is recycled to the furnace as a flux.

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