There is no loss of Cu in slag. All copper of slag. Fe in matte LTotal iron Firon in slag Calculation gives weight of matte Ü . roblem2,and SiO . It is smelted in a reverberatory furnace using pure limestone as a flux. The slag has 36% and . Calculate (per 1000 of …
Copper is present in a smelting slag from Teniente Converter (TC) in the form of mecha-nically entrained matte inclusions and dissolved copper. Copper recovery from the slag requires …
Copper slag (CS) is a kind of non-ferrous solid waste with low content of aluminosilicate and relatively high content of iron oxide. In this paper, the feasibility and mechanism of CS as the mineral admixture and precursor of alkali activated cementitious material were studied. ... (FA) and granulated blast furnace slag (GBFS) to solve the ...
Copper oxide reduction accomplished with injection of reducing media for several tuyere/plug arrangements in a slag refining furnace was simulated and the reduction performance was compared.
Fayalite is the main phase of copper slag and a type of Fe silicate glass that is composed of a polymerized network of silicate tetrahedrons, in which SiO 2 and FeO are generally considered as network formers and modifiers, respectively. The structure of fayalite is shown in Fig. 13 [107].In iron silicate glass, O 2− exists in the form of bridging and non-bridging oxygens (BOs and …
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; Chinese | English; Metal Extracting ... normally less than 0.3% metal in slag; 6. Simple equipment and light investment, particularly advantageous for production ...
Copper slag (CS) is the classical solid waste generated in the production process of copper and about 2–3 tons of slag is discharged for one ton of copper production [15].The annual output of CS reaches nearly 70 million tons worldwide [16].It mainly contains Fe (35–68 wt%) and Cu (0.3–4.6 wt%), with various minor elements, such as Zn, Co, Ni, Pb, and As [16].
The slag contains 0.5–1% Cu and it is almost always treated for copper recovery either by electric furnace settling or by flotation of the copper from finely ground solidified slag. Off-gas, rich in SO 2, is collected continuously, cleaned, and sent to a sulfur fixation plant.
The main aim of the electric furnace treatment in the primary copper industry is the reduction of valuable metals such as zinc, lead or copper itself. On the one hand legal …
Secondary copper blast furnace slag was treated with carbon to derive the conditions for maximum recovery of copper with minimum simultaneous reduction of iron oxide. Experiments were carried out to study the effects of parameters such as temperature, carbon addition and CaO addition to the slag on the efficient recovery of copper. A two-stage …
The safe and efficient treatment of copper slag (CS) is an important aspect of the circular economy and green development. In order to reduce the negative environmental impact, CS is used as a precursor to substitute different contents of ground granulated blast furnace slag (GGBS) in the manufacturing of alkali-activated materials (AAM)) in this study.
Copper slag cleaning using the flotation method and/or in an electric furnace is widely adopted in industrial production.[2,3,4,5] The flotation method has the advantages of low energy consumption and low copper content in the slag, but the waste liquid treatment after flotation has always been an issue.
AlucoFlux DO – Deoxidizing flux that is used for copper-nickel, aluminum-bronze, manganese-bronze and pure coppers. When used prior to pouring, eliminates the need for inert (nitrogen) degassing. ... The addition of Slag-Grip to the ladle or furnace will assist in removing the slag. Not for use in electric glow-bar furnaces. AlucoFlux FW-11 ...
a water-cooled copper mold. The slag is usually calcium fluoride with the addition of lime, magnesia, and other oxides. In its molten state the slag is electrically conductive and acts like a resistance heating element when a high current is passed between the electrode and the mold. With the continued passage of the electric current, the slag ...
Figure 2 80.4% Al2O3 + 10.4% SiO2 + 6.4% SiC Ultra Low Cement Castable Figure 3 shows that a more pure refractory has significantly less slag penetration when in contact with a copper-iron slag. Figure 3 88.7% Al2O3 + 3.7% SiC + 3.6% SiO2 Dri-Vibratible Copper-Manganese Slag Compound Slag Wt.%
To obtain a deeper understanding and enhance its practical application, the effects of silicate modulus and alkali content of water glass (WG) on the performances of alkali-activated blast furnace slag-copper slag (AAS-CS) are systematically investigated though the fluidity, setting time, hydration heat, compressive strength and drying ...
Thermal behaviour of reverberatory furnace copper slag was investigated using simultaneous thermal analysis (STA), dilatometry and X-ray diffraction techniques. ... Addition of 20–80 wt% copper slag to a standard floor tile composition increased the firing shrinkage and bend strength values and decreased the water absorption, up to a firing ...
During copper matte smelting, a lag exists in the analysis of the smelting results, leading to the production parameters not being effectively adjusted in time. As the first smelting process in copper pyrometallurgy, the optimization of the amount of raw material, as well as the prediction and adjustment of slag and matte phases, has become an extremely important …
Commonly used alkali activation precursors such as blast furnace slag and fly ash will soon become less available due to resource competition, and may cease to be produced in certain regions. This limitation in future supply is a main driving force for the investigation of alternative precursor sources, such as non-blast furnace slags and non-ferrous slags, to …
Copper oxide reduction accomplished with injection of reducing media for several tuyere/plug arrangements in a slag refining furnace was simulated and the reduction performance was compared.
Reactivity is the key to the successful utilization of waste materials. Ferronickel slag, copper slag, and copper tailing show a high amount of SiO 2 that forms a secondary calcium silicate hydrate if mixed with cement through a pozzolanic reaction. Steel slag has CaO as the most dominant chemical component and is close to Portland cement.
The main aim of the electric furnace treatment in the primary copper industry is the reduction of valuable metals such as zinc, lead or copper itself. On the one hand legal restrictions for the further use of the treated slag are constantly getting stricter while on...
1.1 Blast Furnace Slag 3 1.2 Steel Slag 4 1.3 Chemical Composition and Engineering Properties 6 1.4 Slag Utilization 9 2. Slag as Pavement Material 9 2.1 Slag as Sub-base Material 10 ... 12.2 Copper Slag GSB, Cement Stabilised Base/Sub base, WMM and 31 Bituminous Mixes 13. Environmental Aspects 31 14. Typical Cross Section of Rural Road with ...
Keywords: Pyrometallurgy, furnace, auxiliary equipment, copper slag launders Abstract – Pyromet has designed copper launders for tapping slag. What makes Pyromet's launder design innovative and safe is that it does not have any cooling water channels underneath the launder runner, whilst achieving effective cooling ...
In the present work, the effects of amount of coke, reduction temperature, flux addition, and furnace types on copper slag smelting in a DC arc furnace were studied. The optimum coke …
The main purpose of using an electric furnace in the primary copper industry is the reduction of valuable metals present in the slag after the finished smelting process of copper …
A copper slag tap-hole that does not require a support cool er is shown schematically in Figure 6. Temperature ... slag–metal separation, slag flow in the furnace, and ultimately furnace tapping ...
Slag produced by flash furnace operations contains significantly higher amounts of copper than reverberatory or electric furnaces. Flash furnace slag is treated in a slag cleaning furnace with …
Large amounts of slag are generated during pyrometallurgical processing in copper production. Due to the presence of valuable elements, the improper disposal of huge quantities of copper slag produced, results in significant loss of resources as well as environmental issues. Analyses of the copper slag show that it contains valuable metals, …
The authors further consider that under exceptionally well-controlled conditions, a copper content in electric furnace discard slag between 0.55 wt.% and 0.7 wt.% can be …
