[email protected] Get Price
  1. Home
  2. Mobile Crusher
  3. Smelting Oxidation Desulfurization Of Copper Slags

Smelting Oxidation Desulfurization Of Copper Slags

Smelting Oxidation Desulfurization Of Copper Slags

Copper slag as a catalyst for mercury oxidation in coal

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 (Hg 0) oxidation in simulated coal combustion flue gas.The copper slag exhibited excellent catalytic performance in Hg 0 oxidation at temperatures between 200 C and 300 C. At the most optimal temperature of 250 C, a Hg 0 oxidation

Experimental Study on Oxidative Desulfurization of Molten

Experimental Study On Oxidative Desulfurization Of Molten

We study the oxidative desulfurization of copper slag at temperatures ranging from 1250 C to 1450 C using experimental copper slag as raw material. This is significantly different from the oxidative desulfurization process of low sulfur slag (w S 0.2 pct) at temperatures 1500 C compared with the literature. Based on thermodynamic equilibrium calculation and an

123 Primary Copper Smelting United States

123 Primary Copper Smelting United States

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

PDF Microscale simulation of settler processes in copper

Pdf Microscale Simulation Of Settler Processes In Copper

atmosphere. The highest oxidation-desulfurization rate was With the participation of cuprous oxide dissolved in the observed at 900 8C, while at 1000 8C, the formation of an slag, the possible interaction reactions between matte and oxidation crust markedly decreased the

Copper matte slag reaction sequences Semantic

Copper Matte Slag Reaction Sequences Semantic

of copper concentrate and synthetic slag was contacted at 1300C, and quenched after short time intervals. With this technique, the sequences and reaction paths occurring between reacting concentrate, flux, matte, and slag can be evaluated. 1.2 Copper Matte-Slag Interactions in Flash Smelting In general, copper matte smelting can be described

Laboratory Extraction of Copper from Chalcocite by

Laboratory Extraction Of Copper From Chalcocite By

Jun 23, 2019 This facilitates copper separation from the slag during smelting by increasing the size of the globules. Copper Smelting Two factors must be considered in smelting these pellets (1) They contain up to one percent sulfur which will enter the metal or form a small amount of matte, and (2) not all of the copper oxide is reduced, so small amounts ...

Alternative Reduction of Copper Matte in Reduction

Alternative Reduction Of Copper Matte In Reduction

nitrogen to reduce Cu in copper slag.11,12) Kawy and Ahmed using reflection furnace to achieve smelting and recycling of copper anode, the cathode and the residual.13) Zhou X. used copper slag to produce weathering resistant steel.14) By comparing contents of main component in the stainless steel and copper slag, it is known that we can

Oxidation Treatment of Arsenic Sulfide Slag

Oxidation Treatment Of Arsenic Sulfide Slag

Oxidation Treatment of Arsenic Sulfide Slag Li Rui-bing 1*, Yao Zhi-xin, Zhang Ting-an2* and Yu San-san1 1Shenyang University of Chemical technology, Shenyang, China 2Northeastern University, Shenyang, China Introduction Arsenic is generally present in the ores of copper, lead, zinc, and other non-ferrous metals.

CONVERTING USING ISASMELTTM TECHNOLOGY

Converting Using Isasmelttm Technology

The smelting stage involves the oxidation of the feed to form a copper matte and ... copper smelting within a smelting and refining operation in Lnen, Germany 6. Figure ... are the slag chemistry, desulfurization of the blister copper, containment of the melt and smelter layout.

PCDDFs emissions from secondary copper ScienceDirect

Pcddfs Emissions From Secondary Copper Sciencedirect

Feb 01, 2021 The effects of fabric filters and desulfurization systems during secondary copper smelting on polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) concentrations, emission coefficients, and profiles were studied in an oxygen-rich smelting furnace and an anode furnace.In the anode furnace, the toxic equivalent (TEQ) concentration ranges were

CN107213774B Flue gas desulfurization Google Search

Cn107213774b Flue Gas Desulfurization Google Search

The invention discloses a flue gas desulfurization and resource utilization method based on smelting tailing slag, and belongs to the field of comprehensive utilization of waste slag and the technical field of industrial waste gas purification. Mixing smelting tailing slag containing iron, zinc, manganese, aluminum and other metals with water to prepare desulfurization slurry,

Download Free Kinetics of Copper Reduction Google Search

Download Free Kinetics Of Copper Reduction Google Search

Download Free Kinetics of Copper Reduction from Molten Slags eBook for kindle tablet ipad android--- DOWNLOAD LINK---Download Kinetics of Copper Reduction from Molten Slags. download eBook Kinetics of Copper Reduction from Molten Slags free in pdf download Kinetics of Copper Reduction from Molten Slags ebook free android download ebook ...

Simultaneous NOx and SO2 removal Wiley Online Library

Simultaneous Nox And So2 Removal Wiley Online Library

Nov 10, 2020 The study of copper slag has attracted the attention of scholars from both China and around the world. But few have paid attention to its applications in the simultaneous removal of SO 2 and NO x in wet flue gas desulfurization (WFGD), becasue WFGD technique is inappropriate for directly treating NO x owing to the low solubility of NO. This work aims to

Desulfurization kinetics of high lead and zinc sulfide

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/(FePbZn)0.176, Zn/(FePbZn)0.56) at various

Smelting Oxidation Desulfurization of ScienceDirect

Smelting Oxidation Desulfurization Of Sciencedirect

Dec 01, 2012 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. Special attention is given to the effects of the holding temperature, the holding time and

Smelting Oxidation Desulfurization of Copper Slags

Smelting Oxidation Desulfurization Of Copper Slags

Dec 01, 2012 The results indicate 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 slags can be removed as SO2 efficiently.

Smelting Oxidation Desulfurization of

Smelting Oxidation Desulfurization Of

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. Special attention is given to the effects of the holding temperature, the holding time and CaF 2, CaO

Smelting Oxidation Desulfurization of ResearchGate

Smelting Oxidation Desulfurization Of Researchgate

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

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.

Influence of Desulfurization with Fe2O3 on the MDPI

Influence Of Desulfurization With Fe2o3 On The Mdpi

Li et al. studied the process the smelting oxidation-reduction process of copper slags with air blowing. And results show that the sulfur content can be reduced from 0.52 wt.% to less than 0.01 wt.% with this method.

Crystallization Behavior of Copper Smelter Slag NASAADS

Crystallization Behavior Of Copper Smelter Slag Nasaads

Copper slag is composed of iron silicate obtained by smelting copper concentrate and silica flux. One of the most important criteria for the utilization of this secondary resource is the recovery of iron from the slag matrix to decrease the volume of dumped slag. The molten oxidation process with crushing magnetic separation appears to be a more sustainable approach and is

Copper smelting combined with slag

Copper Smelting Combined With Slag

The product of slag fuming is crude copper metal 47, some iron and essentially copper free slag. The crude copper metal is recycled to flash furnace 29. More advantageously, reduction operation 45 can comprise contacting slag 35 with a finely divided coke or metal reductant during the cooling of slag 35.

Chapter 6 Copper Production Technology Princeton

Chapter 6 Copper Production Technology Princeton

Figure 6-2.Early Smelting Technology Charcoal ore flux m The Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows. By the end of the smelt the copper had separated from the slag, which was tapped off.

Alternative Reduction of Copper Matte in JSTAGE

Alternative Reduction Of Copper Matte In Jstage

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

Environmental Guidelines for Copper Smelting MIGA

Environmental Guidelines For Copper Smelting Miga

Emissions from Copper Smelting Parameter Maximum value milligrams per normal cubic meter (mg/Nm3) SO2 1,000 Arsenic 0.5 Cadmium 0.05 Copper 1 Lead 0.2 Mercury 0.05 Particulates - smelter 20 Particulates - other sources 50 Slag should be landfilled or granulated and sold. Modern plants using good industrial

PHYSICOCHEMICAL CHARACTERIZATION OF COPPER

Physicochemical Characterization Of Copper

coming from sulphide ores that require oxidation at high temperatures requiring pyrometallurgy treatment. However, pyrometallurgical processes produce large quantities of slag, and this constitutes one of the main by-products of the metal extraction industry 2. The average composition of primary copper slag corresponds to 3040 % iron, 35-40%

Photocatalytic Oxidation of SO2 from Flue Gas in IJCCE

Photocatalytic Oxidation Of So2 From Flue Gas In Ijcce

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 ...

The Complete Book on Ferroalloys Semantic Scholar

The Complete Book On Ferroalloys Semantic Scholar

Oxidation Desulfurization Development Oxidation Desulfurization Observation Conclusions Design of a Modern Large Capacity FeNi Smelting Plant History, Applications and Trends Experiences in FeNi-Smelters and Rectangular Furnaces General Trends in the FeNi-production Industry Demand Design Principles of Large Scale FeNi-smelters Calcine ...

Metallic sulphide and sodium carbonate interacting

Metallic Sulphide And Sodium Carbonate Interacting

heating rate 10 K/min. It enabled to reveal the initial stage of desulfurization of copper, iron, lead and zinc sulfides, possibly caused by the change of homogeneity field of the sulfide composition. At the known processes the oxidation order of simple non-ferrous sulphides proceeds as follows FeS, ZnS, PbS, Cu 2 S.

Study on Recovering Iron from Smelting Slag by

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%.

inorganic chemistry Extraction of copper from

Inorganic Chemistry Extraction Of Copper From

Aug 26, 2021 The loss of copper as prills depends on the size of the prills, the viscosity of the slag and the settling time available. The most important factors during the smelting process which affects copper loss are matte grade mass of slag. This means that there is a limit on how high the matte grade can be if the loss of copper to slag is to be ...

Roasting smelting and converting Encyclopedia Britannica

Roasting Smelting And Converting Encyclopedia Britannica

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

HiTemp Chem Procg Notes Part 2 2016

Hitemp Chem Procg Notes Part 2 2016

1. Removal of too much iron (production of very high-grade matte) increase oxidation of nickel and copper loss into slag 2. It also increases the content of impurities in matte Thus, the matte is separated from the slag and further converted. 2FeO SiO2 2FeOSiO2 Fayalite Slag (Impurities are absorbed into slag) Major Reactions Smelting

Dissolution of copper from smelting slag by leaching in

Dissolution Of Copper From Smelting Slag By Leaching In

Leaching of copper smelting slag in chloride media was studied. The lixiviants used were aqueous solutions of hydrochloric acid (0.5-2.0 M HCl) as well as hydrogen peroxide and hydrochloric acid (0.5-3.0 M H 2O2, 1.0 M HCl). The maximum final copper extraction from the slag of 73% was attained with 3 M H 2 O 2

THE INFLUENCE OF THE SILICATE SLAG COMPOSITION

The Influence Of The Silicate Slag Composition

will enable better management of the copper losses in the smelting slag. This is resulting from the fact that regulation of the input charge composition can be used for control of the copper losses in the smelting slag, also the degree of desulphurization obtained during oxidative roasting can be used for control of the copper content in the ...

Blog