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
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.
Removal of Sulfur from Copper Smelting Slag by CO2
The results mdicate that 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
Kinetics of copper extraction from copper smelting slag by
1. Introduction. Copper is an indispensable basic raw material for modern industry, however, the grade of copper ore is relatively low in China for the reason that the copper mines are dominated by lean ore, associated ore, and symbiotic ore, especially in the process of smelting it is necessary to add fluxes such as calcium oxide and silica, thus producing a large amount of copper smelting
Experimental Study on Oxidative Desulfurization and
The oxidation and reduction of molten copper slag were carried out and agreed well with theoretical calculations. Sulfur in slag can be dropped to 0.23 wt%, and the utilization rate of air is in the range of 14.98–73.39%. The copper recovery rate can reach 83.82% and the residue copper can be reduced to 0.28 wt%.
Smelting chlorination method applied to removal of copper
Jan 14, 2015· Abstract In order to reasonably utilize the iron resources of copper slags, the smelting chlorination process was used to remove copper from copper slags. Higher holding temperature and O 2 flow rate are beneficial to increasing copper removal rate.
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 the furnace type. Main components of copper slag are iron oxide and silica. T hese exist in copper slag mainly in the form of fayalite (2FeO·SiO 2
Copper processing Roasting, smelting, and converting
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
Smelting chlorination method applied to removal of copper
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. Higher holding temperature and O2 flow rate are beneficial to increasing copper removal rate. However, the Cu2O mode is formed by the reaction of surplus O2 and CuCl with O2 flow rate increasing over 0.4 L/min, causing CuCl
Smelting & Reduction
1. In smelting choice of slag composition to give the optimum balance of basicity and fluidity is important : maximum removal of impurities. 2.Matte smelting can be conducted at lower melting point than metal oxide smelting. 3. Matte smelting is normally carried out in a reverbatory furnace; electric arc furnace for higher temp.
Experimental Study on Oxidative Desulfurization and
The oxidation and reduction of molten copper slag were carried out and agreed well with theoretical calculations. Sulfur in slag can be dropped to 0.23 wt%, and
THE INFLUENCE OF THE SILICATE SLAG COMPOSITION ON
(SiO2, FeO, Fe3O4, CaO, Al2O3) and the content of copper in the matte on resulting copper content in the slag during smelting of the sulfide concentrates in the reverberatory furnace. When comparing results obtained with MLRA model calculations with values measured at industrial level high degree of fitting is obtained (R2 = 0.974).
What is Slag? (with pictures) wiseGEEK
Apr 15, 2020· Non-ferrous smelting, used to refine copper, lead, and similar metals, produces highly ferrous slag, as iron is an undesired element. Ferrous smelting, such as that used to produce steel, creates non ferrous slag, as all the iron is used in the smelting process. After slag is allowed to age, it can be sold for use in other industrial processes.
Copper processing Roasting, smelting, and converting
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
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
Copper Smelting Chemistry Tutorial AUS-e-TUTE
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:
Photocatalytic Oxidation of SO2 from Flue Gas in the
Copper slag is a byproduct obtained during the matte smelting and contains magnesium, iron oxide, and silica and copper slag catalysts are cheaper than nickel-based catalysts and non toxic [18]. In this sense, copper slag is an important co-product of the metallurgy industry that copper slag is mainly composed of Ferro silicate and magnetite
Copper extraction Wikipedia
All primary sulfide ores of copper sulfides, and most concentrates of secondary copper sulfides (being chalcocite), are subjected to smelting.Some vat leach or pressure leach processes exist to solubilise chalcocite concentrates and produce copper cathode from the resulting leachate solution, but this is a minor part of the market.. Carbonate concentrates are a relatively minor product
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.
COPPER Copper production Repository
1. smelting concentrates to matte 2. converting matte by oxidation to crude (converter or blister) copper 3. Refining the crude copper, usually in two steps 1. pyrometallurgically to fire-refined copper 2. electrolytically to high-purity electrolytic copper-1 of 11-
Slags, copper smelting Registration Dossier ECHA
EC number: 266-968-3 CAS number: 67711-92-6 Slag resulting from the smelting of a heterogeneous mixture of copper and precious metals from primary and secondary sources and plant reverts. Major constituents are iron oxide and silicon dioxide with minor amounts of copper, lead, nickel and various non-ferrous metals and oxides.
Copper Blast Furnace Smelting-Copper-
1. Wide adaptability to raw material, from iron, copper, copper-nickel, zinc, lead and zinc-lead complex concentrate; 2. Application of rich-oxygen air blast offers high smelting temperature, enhances hearth capacity and generates high concentration SO 2 gas suitable for sulfuric acid-making; 3.
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.
COPPER Copper production Repository
1. smelting concentrates to matte 2. converting matte by oxidation to crude (converter or blister) copper 3. Refining the crude copper, usually in two steps 1. pyrometallurgically to fire-refined copper 2. electrolytically to high-purity electrolytic copper-1 of 11-
Slags, copper smelting Registration Dossier ECHA
EC number: 266-968-3 CAS number: 67711-92-6 Slag resulting from the smelting of a heterogeneous mixture of copper and precious metals from primary and secondary sources and plant reverts. Major constituents are iron oxide and silicon dioxide with minor amounts of copper, lead, nickel and various non-ferrous metals and oxides.
Copper Blast Furnace Smelting-Copper-
1. Wide adaptability to raw material, from iron, copper, copper-nickel, zinc, lead and zinc-lead complex concentrate; 2. Application of rich-oxygen air blast offers high smelting temperature, enhances hearth capacity and generates high concentration SO 2
Determination and Calculation of Components Cargo (Slag
After smelting the copper ores in flame furnace crated matte that is smelting Cu 2 S and FeS. The amount of copper in Matte determined amount of Cu 2 S while rest is while FeS. In reallity matte contains less sulfur and other metals such as: PbS, ZnS, Fe 3 O 4 and noble metals but their amount is small and does not affect the calculation.
Advances in Molten Slags, Fluxes, and Salts Wiley Online
May 16, 2016· This book contains the Proceedings of the 10th International Conference on Molten Slags, Fluxes, and Salts. Table of Contents Behavior of Selenium in Copper Smelting Slag (Pages: 677-685) Bhavin Desaia; Vilas Tathavadkar Effects of Various Slag Systems on Metal/Slag Separation of CCA and Slag Composition on Desulfurization and
Alternative Reduction of Copper Matte in Reduction Process
1. Introduction. At present, almost 2.2 t copper slag are produced while 1 t copper produced. 1) The cumulative stockpiling of copper slag has been up to 250 million tons. Plenty of solid wastes brought serious damages to environment. 2) With the continuous development of copper smelting technology, the smelting intensity and matte grade increasing, matte in copper slag
Slag Video Learning WizScience YouTube
Sep 10, 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.
The formation of magnetite in slag from the autogenous
Slag, magnetite, autogenous smelting, sulphide copper zinc concentrate . 1. Introduction . Matte and iron silicate slags during autogenous smelting of sulphide copper zinc concentrates are formed in Vanyukov’s furnace [1, 2]. Significant quantity of non -ferrous metals is lost in slags (Cu, Zn, Pb etc.). Slags are stockpiled
Implementation of a Novel Technology for the Recovery
Implementation of a Novel Technology for the Recovery of Cobalt from Copper Smelter Slags molten Co/Cu/Fe alloy, and a pressure oxidation leach process to leach cobalt and copper and separate iron as goethite was also Commercial application of the DC arc furnace on smelting of copper smelter slag was
Copper Slag Manufacturer,Copper Slag Powder Supplier
The Industrial Copper Slag given by us to our clients is essentially a residual substance secured from the processing of smelting ore. We offer our clients impeccable quality Copper Slag Powder which is 100% processed and widely used for blasting and removing wastes from metals.
Desulfurization kinetics of high lead and zinc sulfide
The desulfurization process of lead and zinc slag is an important smelting process to obtain lead and zinc. The aim of this paper is to study the desulfurization process of high lead and zinc sulfide containing slag with oxygen blowing. The predominance area diagrams of the Pb-Zn-Fe-S-O system (Pb/(Fe+Pb+Zn)=0.176, Zn/(Fe+Pb+Zn)=0.56) at various
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.
An Innovated Application of Reutilize Copper Smelter Slag
Characterization of the copper slag. The compositional analysis (Table 1) confirms the presence of iron, silicon, zinc, and aluminum as the significant element in the copper slag, and some other elements in lower level of concentrations, such as calcium, magnesium, chromium and copper.This waste is regarded as hazardous materials in many countries due to the presence