No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Łukasiewicz Research Network—Institute of Non-Ferrous Metals, Sowińskiego Street 5, 44-100 Gliwice, Poland ... Y.-L. Numerical simulation of coupling multi-physical field in electrical arc furnace for smelting titanium slag. J. Iron Steel Res. Int. 2023, 30, 2194–2209. [Google Scholar] Figure 1. Diagram of data transfer between individual ...
One of the greatest environmental challenges in metal extraction is the generation of a large amount of slag. Most of these slags contain insufficient amounts of valuable metals for economical revalorization, but …
Losses also occur during depletion smelting in electric furnaces of converter slag and slag of suspended smelting furnaces. The distribution of Pt, Pd, Au, and non-ferrous metals between slag and matte, depending on various factors, is considered in [3,4]. It is known that the solubility of Pt and Au in slags is negligible . One of the probable ...
Metallurgical slags are generated as a by-product of smelting during ironmaking, steelmaking, and the production of ferroalloys and non-ferrous metals. The formation conditions result in complex chemical and mineralogical characteristics unique to slags alone.
Metallurgical slags are generated as a by-product of smelting during ironmaking, steelmaking, and the production of ferroalloys and non-ferrous metals. The formation …
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 step. …
The main waste materials within this process are the tailings from the flotation stage and the furnace slags from the smelting stage. Copper slag is produced during matte smelting and converting steps of pyrometallurgical production of copper from copper ores, when silica is added. ... Thomas et al. (1979) tested non-ferrous slag (air cooled ...
Slag examined in this study is defined as the predominantly silicate and oxide by-product derived from smelting metallic ore. The two main types of slag included in this …
Slag is a by-product of the metallurgical smelting process. Slag has a double role: it permits removal of impurities, known as gangue, from the melt by forming oxides. It also …
In non-ferrous metallurgy, the yearly amount of slags produced is much lower than in ferrous metallurgy . In Zn and Pb production, there are two main processes with specific types of slags: the Zn/Pb blast furnace (BF) process and the Imperial Smelting Process (ISP) [53, 90].
The reduction process of copper slag is the reduction of magnetite to ferrous oxide, which is part of an endothermic reaction. An increase in temperature could be beneficial to increasing the reductant efficiency. ... After 300 g of the copper smelting slag was heated at 1250 °C for 40 minute, the lance was placed 1 cm above the surface of the ...
Slag examined in this study is defined as the predominantly silicate and oxide by-product derived from smelting metallic ore. The two main types of slag included in this discussion are from the primary production of ferrous ores, from iron and steel manufacturing, and from non-ferrous ores, from the recovery of base metals and some precious metals.
Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1.5 million tons of copper slag are generated annually in Korea. The oxides in copper smelting slag …
Slag is a by-product of the metallurgical smelting process. Slag has a double role: it permits removal of impurities, known as gangue, from the melt by forming oxides. ... including alumina, magnesia, and other compounds. During …
The operation of a metallurgical furnace requires the safe opening and closing of the furnace taphole. In this operation, the molten phase in the furnace is allowed to flow through the tap-hole for transfer to a ladle or another vessel before the tap-hole needs to be safely closed. Until now, non-ferrous tapping operations have largely been performed by an operator. Safe …
Depending on the stages at which the slag is collected, it can be classified broadly into: (1) Iron/ferrous slag collected upon completion of iron-making process; and (2) Steel slag formed as a by-product of steel-making process resulting in differences with respect to their mineralogy, reactivity, morphology and hence applications.
To enforce the implementation of necessary slag treatment process for a harmless steelmaking industry and a higher efficiency of ferrous slag recycling, relevant environmental legislation needs to be promulgated in a worldwide range, fulfilling the responsibility of steelmaking companies. 4. Reutilization of ferrous slag
Controlled low-strength materials (CLSMs) are a type of backfill material consisting of industrial by-products that do not meet specification requirements. The preparation of …
Ferrous slags include blast furnace, steelmaking, and ferroalloy slags; the compositions of these slags are generally dominated by Ca and Si, some with significant Al, …
In 2019 production volumes of non-ferrous slag will be over 116.4 million tonnes worldwide. This new study tracks and critically analyses how this market will develop across the next ten years, with forecast growth at 1.0% CAGR to reach 133.7 million tonnes in 2029. ... Characterisation of by-product slag produced from non-ferrous smelting ...
Slag remains from the Na Slupi site (Prague, Czech Republic): evidence for early medieval non-ferrous metal smelting Selmi Wallisová 2015, Journal of Archaeological Science
The copper smelting slag (CSS) utilized in this study was sourced from a copper smelter located in Xinjiang, China. In order to gain a deeper understanding of the mineral composition of the CSS and the distribution of metal elements, X-ray diffraction (XRD) phase analysis was performed, with the outcomes presented in Fig. 4 a.
elements (PTEs) in smelting slag, its safety risks are worth considering when reused as a secondary resource [14]. The objective of this review is to: 1) describe the production process and chemical characteristics of non-ferrous metal smelting slag; 2) summarize the typical resource utilization pathways of smelting
Taking copper slag as an example, copper slag is a solid waste containing iron, lead, and zinc produced in the process of copper smelting, which is a typical non-ferrous smelting slag. Besides oxides of Ca, Mg, Si, and Al, copper slag also contains 20 %–40 % total iron (TFe) and a certain amount of lead and zinc, which has a high ...
We looked specifically at ferrous slag, the leftover material from the smelting of iron and steel, in the Chicago-Gary area of Illinois and Indiana. Ferrous slag is currently underutilized. Although the construction industry does use some slag as an aggregate, most is simply discarded.
The tappingTapping operation of a metal, matte, or slag at a non-ferrous smelting furnaceFurnace has a number of common aspects from one facility to another. In simple terms, the tap-holeTap-hole initially requires the safe opening, the molten phase is allowed to...
Slag from the production of ferrochrome is also included here; this material is produced in substantial tonnages and the main use of ferrochrome is in the steel industry. Slags also arise from other processes, particularly the smelting of non-ferrous metals, but these materials can be very different and each needs to be studied individually.
Abstract. A mechanism is proposed for the joint reduction of oxides from multicomponent copper-smelting slag when they are blown with CO–CO 2 gas mixtures and an algorithm is developed for its implementation in the form of a mathematical model. The first feature of the proposed mechanism is that the total rate of the overall reduction process is …
magnesium, aluminum and other components as well as ferrous oxide formed in smelting and calcium oxide mixed as the flux have significant impacts on the prop- erties of the resulting melt. ... alumina content in the smelting slag is less than 10 wt%. Hence, cordierite cannot form in an actual slag (line AB in Fig. 3.2). In practice, pyroxene ...
Stirred tank reactor (STR) leaching of non-ferrous metals from copper smelting slag was conducted using biogenic Fe3+ solution containing H2SO4. The solution was initially obtained through ...
