Abstract. The main challenge of the European steel industry for the next decade is the steel production transformation process. Many steel producers aim to …
Waste recycling and reuse is an important component of sustainability. Extensive research is being conducted to address this issue by incorporating industrial by-product such as steel slag, copper slag, fly ash, ferro-chrome slag, and so on into the construction industry. Steel slag, which is mostly calcium carbonate, is created as a by …
Slag, by-product formed in smelting, welding, and other metallurgical and combustion processes from impurities in the metals or ores being …
DOI: 10.1016/j.jclepro.2023.136557 Corpus ID: 257071720; Study on recycling Si from silicon diamond-wire saw cutting waste by a slag refining process in industrial scale @article{Wei2023StudyOR, title={Study on recycling Si from silicon diamond-wire saw cutting waste by a slag refining process in industrial scale}, author={Donghui Wei and …
1. Introduction. 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 …
The basic oxygen furnace steelmaking slag (SL) is employed for CO2 mineralization. Response surface methodology and the central composite design were employed in determining the optimal condition. The optimization goal in this paper has been set for maximum CO2 capturing. It was found that the reaction temperature and CO2 …
The process of making slag wool involves melting the slag and drawing it through a tap hole. The slag then passes through a jet of air, which disperses the slag …
Create email alert. Restricted access. Research article. ... The system was implemented in an industrial slag mill. Results demonstrated reduced vibration and energy use versus manual control. ... Kang W, Xiaoli L, Chao J,. et al. Optimal tracking control for slag grinding process based on adaptive dynamic programming. Acta Automatica …
Steelmaking slag is mainly produced from BOF and EAF processes. Other steelmaking slags include hot metal pretreatment, ladle furnace (LF), tundish and continuous casting …
In this method, ammonium salt can be used as a solvent to produce pure CaCO 3 from converter steel slag, and the only raw materials for this process are slag and CO 2, the process scheme is shown in Figure 17a. Fixing 1t CO 2 requires 4.7 t converter slag, and 2.3 t of CaCO 3 and 3.4 t of residue are produced.
Many restrictions exist, however, on the utilization of steel slag. When steel slag is used internally, in steel plants, the most obvious problem is that of the enrichment of P and S (Drissen et al., 2009).The Bhilai Steel Plant in India was shut down because of its high S and P content (Das et al., 2007).The amounts of free lime and free MgO are …
A potential industrial waste-waste co-treatment process was proposed and verified for the recovery of the valuable metals Co, Ni, and Cu from copper smelting slag by utilizing high temperature SO2 ...
During the Industrial Revolution, now also known as the First Industrial Revolution, one of the important technological developments was in iron making where the substitution of coke for charcoal greatly lowered the fuel cost of pig iron and wrought iron production effectively allowing larger blast furnaces that resulted in economies of scale. . Although slag use in …
The flux coating on the electrode plays a crucial role in this process. As the electrode melts, the flux disintegrates, releasing vapors that act as a shielding gas. Simultaneously, the flux produces a layer of slag that protects the weld area from atmospheric contamination. Initiating and maintaining the arc is a fundamental skill in SMAW.
A study involving industrial measurements and mathematical modeling has been conducted to eluci-date kinetic phenomena in the zinc slag fuming process. In the first part of this three-part paper, the results of industrial measurements and observations are presented. In Part II a mathematical model of the process is developed, and finally in …
Steel slag is an industrial by-product of steel production which is obtained during the pyrometallurgical process. Technological dissemination on effective utilization of steel slag in vast quantities globally is essential as the generation of steel is escalating year by year and the availability of steel slag is also in millions of tons. Though steel slag has been …
A general dynamic model of the plasma-driven slag fuming process has been developed in FactSage 7.0 based on Metallo Belgium's industrial-scale submerged plasma slag fuming furnace.
Processes In the latter half of the twentieth century, steelmaking came to be dominated by two processes. These are BOS, where oxygen is blown into the molten metal, and Electric Arc, where energy is provided by large electrodes. Earlier processes included the Open Hearth, where heated …
LiDonit® is a synthetic mineral created from the calcium silicate-rich converter slag in accordance with the Linz-Donawitz steel manufacturing process. Silicates and pure oxygen are specifically added to the slag when it is still in liquid form.
The formation of dross is an indication of impurities present in the metal, which can affect the metal's properties and quality if not removed. Slag formation, on the other hand, is an integral part of the smelting process, helping to remove impurities from the metal and reduce the metal's oxidation by covering the molten metal.
What is the slag? During iron melting, the scrap material is exposed to high temperature and oxygen. Consequently, oxides are formed on the surface as a more or less viscous layer that can be removed. …
BOS slag is formed by a chemical process involving the oxidation of elements (e.g., Si, Mn, Fe, P) from the metal bath and the dissolution of added solids such as lime, limestone, dolomite, other fluxes, and iron …
As the ore, lime, and coke drop into the furnace (Figure (PageIndex{1})), any silicate minerals in the ore react with the lime to produce a low-melting mixture of calcium silicates called slag, which floats on top of the molten iron. Molten iron is then allowed to run out the bottom of the furnace, leaving the slag behind.
Steelmaking slag volumes have been reduced on commercial scale from about 140 kg t −1 steel to 60 kg t −1 steel. Moreover, model predictions have shown that in principle, all …
In response to the pressing global issue of reducing carbon emissions and the crucial technical challenges of fully utilizing steel slag, researchers have been studying an accelerated carbonation process that entails the carbonation of basic oxides in steel slag to store CO2. However, despite its promising potential, the process has yet to see …
Results are presented from studies of the reasons for the formation and growth of slag crusts in the crucibles of induction furnaces during the smelting of cast iron. It is established that crust formation and adhesion of slag to the furnace lining are caused by interaction of the lining material with reactants in the melt. The degree of slag …
This paper reviews the production, processing, and characteristics of steel slag, and its use as a cementing component in different cementing systems. The …
The original slag glass created in England was well-known for having a brown base mixed with streaks of creamy white, which led to Brown Malachite and Brown Marble. Another early example was Purple Malachite Glass produced by Sowerby, sold in the US under the name 'Blackberries and Cream.'
A study published in Transactions of Nonferrous Metals Society of China. detailing a novel method for the recovery of. copper, lead, and zinc from copper smelting slag using a sulfurization-reduction approach.This innovation represents a significant stride in metallurgical waste management, with potential impacts on both industry practices …
We first present an overview of the metallurgical processes that create ferrous and non-ferrous slag followed by a discussion of the methods used to …
The geopolymer with an optimum compressive strength of approximately 50 MPa was created by mixing metakaolin and LF slag in 50:50 ratios. ... Carbonates formed during the curing process cover the LF slag, preventing lead leaching. ... ladle slag's journey from industrial waste to a catalyst for sustainability illustrates the potential of ...
Antimony has become an increasingly critical element in recent years, due to a surge in industrial demand and the Chinese domination of primary production. Antimony is produced from stibnite ore (Sb2O3) which is processed into antimony metal and antimony oxide (Sb2O3). The industrial importance of antimony is mainly derived …
The slag cover protects the metal and matte from oxidation and prevents heat losses due to its poor thermal conductivity. In order to achieve these objectives, slag must possess a certain optimum level of physical properties, such as low melting point, low viscosity, low surface tension, and high diffusivity; and chemical properties, such as basicity, oxidation …
Steel slag is a byproduct from either the conversion of iron to steel in a basic oxygen furnace, or the melting of scrap to make steel in an electric arc furnace. This paper reviews the production, processing, and characteristics of steel slag, and its ...
