Smelting Oxidation Desulfurization Of Copper Slags

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Smelting Oxidation Desulfurization Of Copper Slags

12.3 Primary Copper 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

US6395059B1 - Situ desulfurization scrubbing process for ...

The sulphate slag formed or the refined copper can be separated out from the vessels using a batch, semi-continuous, or continuous method of operation via tapping holes 29, 30. Alternatively, if required, the oxidation of copper may continue in the presence of the molten sulphate layer 26 initially formed.

Smelting - Wikipedia

Smelting is a process of applying heat to ore in order to extract out a base metal.It is a form of extractive metallurgy.It is used to extract many metals from their ores, including silver, iron, copper, and other base metals.Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind.

Chemistry Tutorial : Copper Smelting

A typical copper ore contains between 0.5% and 2.0% copper. A high grade ore produces a high yield of metal. A low grade order produces a low yield of metal. Copper can be extracted from sulfide ores (usually higher grade ores) by direct smelting. The earliest evidence of copper smelting occurs in Serbian artefacts dating from around 5000 BC.

Smelting & Reduction - vscht.cz

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

Sulfur behavior characteristics in the process of copper ...

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 ...

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.

copper flotation from converter slags - DBM Crusher

smelting oxidation desulfurization of copper slags. Copper Smelting Industry Description energy released during oxidation of the sulfur in the ore impurities (as converter slag) and to form blister copper. Live Chat Blast Furnace Smelting Article about Blast Furnace copper flotation from converter slags goldenpalmcoin. Get Price

Copper Smelting - IFC

carded slag from the smelter. Discard slag may contain 0.5–0.7% copper and is frequently used as construction material or for sandblasting. Leaching processes produce residues, while ef-fluent treatment results in sludges, which can be sent for metals recovery. The smelting process typically produces less than 3 tons of solid waste

Copper extraction - Wikipedia

Copper extraction refers to the methods used to obtaining copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.

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%.

Influence of slag composition on reduction control and ...

SiO2, Al2O3, MgO, and CaO) of the slag have on losses of copper to slag, because it is the appropriate method for this kind of analysis2. Losses of copper in the slag may be in the form of dissolved oxides or mechanically entrained metal prills4. The data used in this investigation are actual plant data collected over a period of two years.

Alternative Reduction of Copper Matte in Reduction Process ...

Jul 26, 2017· 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 98.00%) was as the carrier of sulfur.

(PDF) Microscale simulation of settler processes in copper ...

Microscale Simulation of Settler Processes in Copper Matte Smelting KIM O. FAGERLUND and HEIKKI JALKANEN The literature survey on previous studies of flash smelting revealed there is very little information published concerning matte- and slag-forming processes in the settling part of the reactor. ... The highest oxidation-desulfurization rate ...

Download Free Kinetics of Copper Reduction from Molten ...

ebook Kinetics of Copper Reduction from Molten Slags free da download now; ebook free Kinetics of Copper Reduction from Molten Slags for download download; ebook Kinetics of Copper Reduction from Molten Slags free for download in english; ebook free Kinetics of Copper Reduction from Molten Slags da download pdf

Study on Desulfurization Kinetics Model of LF Refining

The desulphurization kinetics in ladle refining was analyzed, and the restrictive link for the desulfurization was selected based on previous research. Then the kinetics of desulfurization model in LF refining was developed and the empirical formula of sulfur ratio was summarized. The result by calculated shows that there is a good linear correlation between desulfurization rate and time, and ...

CHARACTERIZATION AND MODIFICATION OF THE …

An iron silicate (fayalite) based slag is formed in the secondary copper smelting process. This slag contains substantial amount of ZnO, CaO and Al 2 O 3 and minor components such as Na 2 O, PbO, MgO and Cr 2 O 3. This slag is of great importance to the copper smelting process and the entire production loop. The phase relations and

Copper slag as a catalyst for mercury oxidation in coal ...

Copper slag is a byproduct of the pyrometallurgical smelting of copper concentrate. It was used in this study to catalyze elemental mercury (Hg⁰) oxidation in simulated coal combustion flue gas. The copper slag exhibited excellent catalytic performance in Hg⁰ oxidation at …

CAF2 uses in smelting - KATALOR STEEL

iron ore smelting equipment fluorite stone crusher machine. While slags are generally used to remove waste in metal smelting, they can Historically, ... Fluorspar, or fluorite, chemically calcium fluoride (CaF2), ... Smelting Oxidation Desulfurization of Copper Slags ...

Slag - Wikipedia

In nature, iron, copper, lead, nickel and other metals are found in impure states called ores, often oxidized and mixed in with silicates of other metals. During smelting, when the ore is exposed to high temperatures, these impurities are separated from the molten metal and can be removed. Slag is the collection of compounds that are removed.

Lead Bottom-blowing Furnace Oxidation & Reduction-Lead-

Lead smelting consists of oxidation and reduction stage, and both can be performed in two bottom blowing furnaces separately. The lead material mixed with flux in proportion is charged into bottom blowing furnace for oxidation where lead bullion and high lead slag are produced.

smelting oxidation desulfurization of copper slags

Dec 26, 2013· PRODUCTION OF COPPER VIA LOOPING OXIDATION , for smelting desulfurization, (b) the copper , smelting, the copper content in the slag is . Live Chat; Smelting - Wikipedia. The development of copper smelting in the Andes, , While reverberatory furnaces were very good at producing slags containing very little copper, . Live Chat

Smelting Oxidation Desulfurization 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 …

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

Journal of Iron and Steel Research, International | Vol 19 ...

Journal of Iron and Steel Research, International. Latest issue All issues. Volume 19, Issue 12 Pages 1-78 ... select article Smelting Oxidation Desulfurization of Copper Slags. ... Smelting Oxidation Desulfurization of Copper Slags. Lei LI, Jian-hang HU, Hua WANG. Pages 14-20 Download PDF.

Copper Blast Furnace Smelting-Copper- - metalcess.com

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 ...

Removal of Sulfur from Copper Smelting Slag by CO2 ...

In tube furnace, the desulfurization of copper slag was investigated by changing the temperature and flow rate of CO 2. Thermodynamic simulation using FactSage 7.1 shows that increasing temperature and flow rate of CO 2 can promote the removal of sulfur, and the desulfurization rate can reach up to 54.97%. The experiment shows that the removal ...

Slag | metallurgy | Britannica.com

Slag, by-product formed in smelting, welding, and other metallurgical and combustion processes from impurities in the metals or ores being treated.Slag consists mostly of mixed oxides of elements such as silicon, sulfur, phosphorus, and aluminum; ash; and products formed in their reactions with furnace linings and fluxing substances such as limestone.

US5180422A - Copper smelting process - Google Patents

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.

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 ...

How to Remove Arsenic, Antimony & Bismuth from Copper

Removal of arsenic, antimony and bismuth from copper may take place in the smelting operations by scorification, volatilization, or, under special treatment, by processes of concentration. Owing to the great variety of materials that are treated in economical metallurgy, it is rarely possible to obtain exact weights from any particular operation.

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