Menu
Apr 28, 2022· In order to maximize the utilization value of copper slag, a process of smelting copper–iron alloy with copper slag is proposed here. The reduction kinetics of copper slag by H2 are studied in this paper. The main phases of the copper slag were Fe2SiO4 and Fe3O4. The suitable conditions of reduction were a temperature …
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 …
Smelting Oxidation Desulfurization of Copper Slags. Copper slags smelting oxidation desulfurization is gas-liquid reaction, possible reaction process of which can be illustrated as the following equations: Cu2S+|-02-f-;ySi02=Cu20 Â ySi02+S02 (1) FeS- -02+xSi02=FeO Â xSi02+S02 (2) 16 Journal of Iron and Steel Research, International ...
Smelting Oxidation Desulfurization of Copper Slags: LI Lei,HU Jian-hang,WANG Hua: Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction of Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology,Kunming 650093, Yunnan, China
AP42 CH 12 9 Secondary Copper Smelting US EPA. The principal pollutant emitted from secondary copper smelting activities is particulate matter As is characteristic of secondary metallurgical industries pyrometallurgical processes used to separate or refine the desired metal such as the burning of insulation from copper wire result in emissions of metal …
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 …
Dec 01, 2012· Copper slags smelting oxidation desulfurization is gas-liquid reaction, possible reaction process of which can be illustrated as the following equations: Cu2S+| …
Melting Copper Cathode in Electric Furnace. Melting should be performed without excessive losses of copper either by volatilization or in any slag which cannot be returned to the blast furnace or reverberatory furnace for re smelting The process should be susceptible to ready mechanical manipulation for charging and tapping
Dec 01, 2012· Special attention is given to the effects of the holding temperature, the holding time and CaF2, CaO addition amounts on the desulfurization rate of copper …
【】：According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is studied, which …
Copper smelting slag is produced from copper pyrometallurgy (both smelting and converting stages), usually grading at 0.3-3%. The slag may also contains lead & zinc minerals like galena, sphalerite. Copper mainly dwells in the slag in the form of bornite, chalcocite, chalcopyrite, and metallic copper. The rest are iron minerals like magnetic ...
【】：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 …
Dec 01, 2012· Abstract. According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is …
Sep 17, 2021· To recover metal from copper slags, a new process involving two steps of oxidative desulfurization followed by smelting reduction was proposed in which one hazardous waste (waste cathode carbon) was used to treat another (copper slags). The waste cathode carbon is used not only as a reducing agent but also as a fluxing agent to …
Sep 25, 2022· After cooling by the slag conveyor, the copper concentrate containing 29.44% copper and 30.39% iron and the iron concentrate containing 46.93% iron and 0.4% copper are obtained by the combined process of magnetic separation and flotation. The process flow is shown in Fig. 3 (Zhou et al., 2014). Another typical case is Finland's …
Download Table | Chemical analyses of all samples (FFM, FFS, MM and MS), wt.% from publication: Investigation of effect of colemanite addition on copper losses in matte smelting slag | In this ...
： ：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 …
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. Amount of Ca2+ of copper slags affects the desulfurization rate greatly, and the slag desulfurization rate ...
The Copper Slag Process . Copper slag is a byproduct that is obtained from copper smelting, hence it is the waste of the copper purification, a process that is thought to have originated more than 4,000 years ago, when it is thought that ancient Middle East potter from Mesopotamia and Babylon developed primite open hearth furnaces to achieve the fire …
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 …
Smelting Oxidation Desulfurization of Copper Slags; () ... Smelting Oxidation Desulfurization of Copper Slags. 1,, 2,, 3, 1.Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction of Ministry ofEducation, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and ...
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... DOAJ is a unique and extensive index of diverse open access journals from around the world, driven by a growing community, committed to ensuring quality content is freely available online ...
Open sidebar. maekesi; sbm; Repository
Smelting Oxidation Desulfurization of Copper Slags. Copper slags smelting oxidation desulfurization is gas-liquid reaction, possible reaction process of which can be illustrated as the following equations: Cu2S+|-02-f-;ySi02=Cu20 Â ySi02+S02 (1) FeS- -02+xSi02=FeO Â xSi02+S02 (2) 16 Journal of Iron and Steel Research, International Vol. …
Dec 01, 2012· Abstract. According to the mechanism of sulfur removal easily through oxidation, the process of smelting oxidation desulfurization of copper slags is studied, …
In the process of extracting iron from copper slag, the iron obtained by reduction is difficult to use because of the high content of copper and sulfur. In this paper, the thermodynamics of CO2 desulphurization of slag is simulated using FactSage 7.1. In tube furnace, the desulfurization of copper slag was investigated by changing the temperature and flow …
Smelting Oxidation Desulfurization of Copper Slags 1,, 2,, 3, 1.Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction of Ministry …
Copper slags smelting oxidation desulfurization is gas-liquid reaction, possible reaction process of which can be illustrated as the following equations: Cu2S+|-02-f …
EFFECTS OF C aO, A l O AND M gO ON LIQUIDUS … EFFECTS OF C aO, A l 2 O 3 AND M gO ON LIQUIDUS TEMPERATURES OF COPPER SMELTING AND CONVERTING SLAGS UNDER CONTROLLED OXYGEN PARTIAL PRESSURES B. Zhaoa,*, P. Hayesa, E. Jak a a The University of Queensland, School of Chemical Engineering, Brisbane, …
While particle combustion and chalcopyrite oxidation in suspension smelting is well understood, few studies are available regarding the melt-melt reactions and the separation between copper matte and slag in matte smelting. In the present work, ... Further desulfurization and deironization reactions will occur, mainly through ...
Smelting Oxidation Desulfurization of Copper Slags LI Lei,HU Jian-hang,WANG Hua Engineering Research Center of Metallurgical Energy Conservation and Emission …
Dec 01, 2012· Special attention is given to the effects of the holding temperature, the holding time and CaF 2, CaO addition amounts on the desulfurization rate of copper …
