Extraction of Valuable Metals from Luanshya Copper Smelting Slag …
On the other hand, cobalt was lost to the slag as a result of oxidising environment during copper smelting and converting processes. The grade of cobalt is 0.1–0.4 weight%. Chemical analysis of various samples from Luanshya copper smelting slag has revealed high presence of chromium (more than 0.5 weight%).
SLAG
BOF slag, commonly known as steel slag is another waste from Iron & Steel Industry. It has shown potential for use as a raw mix component up to 10% in the manufacture of cement clinker. Steel slag can also replace granulated blast furnace slag up to 10% in the manufacture of Portland Slag Cement. Steel slags are produced at steel melting
Chemical analysis of steel slag | Download Table
Download Table | Chemical analysis of steel slag from publication: Effect of using steel slag aggregate on mechanical properties of concrete | This study presents an evaluation of the physical and ...
Analytical Technologies for Steel Slag
lution analysis of trace elements, but also chemical structure of steel slag is required. We NSSMC have established a series of techniques to analyze chemical structure of steel slag by using …
Steel plant slag dumps: A potential source of groundwater
The metallurgical processes in production of iron and steel from ores produce slags (blast furnace slag and basic oxygen furnace slag), which is usually dumped as solid waste by …
Waste slag benefits for correction of soil acidity
The aim of the study was to improve the pH of acidic soil (5.2) using a mixture formed by slag waste dumped in landfill and of granulated blast furnace slag.
Table 2 . chemical analysis of slag from 'Divkovici' …
In Bosnia and Herzegovina more than 13 000 ha of agricultural soil are devastated due to the coal mining, and landfills with slag and ash cause contamination of soil, surface and ground waters,...
Techno-economic analysis of a novel full-chain blast furnace slag …
Maruoka [18] performed the methane-steam reforming reaction using the slag waste heat. The results showed that about 106 Nm 3 gas was generated by 299 kg slag and the waste heat recovery ratio reached 51%. Qin [19] used the pyrolysis reaction of printed circuited board to recover the waste heat of slag. In this process, the sensible heat of ...
Table 5 . Size and oxides analysis of the initial tin slag.
Indonesia is the second largest tin producer in the world that resulting abound of by-product. This by-product contains some of valuable metal oxides, such as 0.30% tantalum (Ta2O5) and 0.58% ...
Exploring beneficial uses of ferrochrome slag: A case …
Ferrochrome (FeCr) slag is a waste material obtained from the manufacturing of ferrochromium alloy. Typically, it contains 30% silicon dioxide (SiO 2), 26% aluminium oxide (Al 2 O 3 ... 2.3.1.2 Laboratory analysis to determine the physical, health and environmental
Waste Heat Recovery from Blast Furnace Slag by Chemical …
Blast furnace (BF) slag, which is the main byproduct in the ironmaking process, contains large amounts of sensible heat. To recover the heat, a new waste heat-recovery system—granulating molten BF slag by rotary multinozzles cup atomizer and pyrolyzing printed circuited board with obtained hot BF slag particle—was proposed in this study. The feasibility …
(PDF) Thermodynamic Analysis of Blast Furnace Slag Waste …
Blast furnace slag, which is the main by-product of the ironmaking process discharged at 1450 °C, contains high-quality sensible heat, while oily sludge is the main solid waste produced in the ...
4.2. Major Gasification Solid Byproducts | netl.doe.gov
Slag and Ash As discussed in the Background, solid waste from conventional pulverized coal-fired power plants is a significant environmental issue due to the large quantities produced, chiefly of coal fly ash, and the potential for leaching of toxic substances (e.g. heavy metals such as lead and arsenic) into the soil and groundwater at disposal sites, and accidental releases from coal …
ANALYSIS AND PROSPECTIVE UTILIZATION OF TECHNOGENIC SLAG WASTE …
The article presents the analysis and results of the study of technogenic slag waste of lead-zinc production. Slags of lead-zinc production contain a large number of toxic compounds: lead, zinc ...
Slag analysis
Scientific slag analysis is the method to tell what happend on an archaeological site metallurgically and which processes of production were employed. Archaeometallurgy; ... Slags are by-products of metallurgical or pyro-technological processes and usually remain at the production site as waste product. For example metallurgical smelting slag ...
Chemical Composition as Represented by ASTM A240 and …
Non-metal leaching nature of bottom slag was confirmed with ICP analysis. Based on the results, an industrial symbiosis can be established by recycling and reusing high carbon content fly ash ...
Wet Chemical Analysis
pH Measurements. pH quantifies the amount of free hydrogen and hydroxyl ions present in the water and therefore, the pH value (0-14, 7 being neutral) indicates the acidity and alkalinity of a solution. pH measurement is the most significant test performed in laboratories as many of the physical, chemical, and biological processes are dependent on pH.
Thermodynamic Analysis of Copper Smelting, Considering …
Practically, the matte grade is adjusted by the ratio of O 2 in the blast to concentrate feed rate, assuming a constant slag composition. Due to the fact that the matte grade determines the extent of oxidation of Fe and S, it also determines the extent SO 2 evolution [], and it influences the partitioning of the elements between different phases.. Fe/SiO 2 ratio: This …
Utilizing lithium slag to improve the physical-chemical …
Lithium slag is an emerging industrial waste due to the increasing demand for lithium rechargeable batteries attributed to the recent boom in the automobile industry and space exploration.
(PDF) Determination of silicon content in metallurgical-grade …
Determination of silicon content in metallurgical-grade silicon refined slag using two-step dissolution chemical analysis method July 2023 DOI: 10.21203/rs.3.rs-3143285/v1
Potential Waste Heat Recovery Analysis From Molten Steel Slag…
Abstract. Every day, a huge amount of energy is released into the atmosphere in the form of waste heat. The search for a cleaner and more efficient society, not only at the industrial level but also at the domestic level, should avoid this type of emissions. Steelmaking is an example of an industrial sector with high optimization potential in energy management. In …
Alkali-activated binder with waste photovoltaic glass …
From the above analysis, it can be seen that adding CMEA can accelerate the hydration process of AAM, thereby reducing the free water content in the AAM system. ... Mechanical, microstructure and reaction process of calcium carbide slag-waste red brick powder based alkali-activated materials (CWAAMs) J. Clean. Prod., 331 (2022), Article 129845.
Experimental investigation on bond behaviour, durability and
This study will investigate the viability of SCC constructed using fine aggregates derived from waste copper slag (WCS). WCS replacement ranged from 0 to 70% (10% increments) with sand at constant ...
Sustainable and Comprehensive Utilization of Copper Slag: A …
Large amounts of copper slag are produced every year and major fractions of it are currently disposed, not withstanding the multiple ways the material can be used. Application of the slag is often limited by the presence of hazardous elements and their leaching behavior so they can potentially pollute soil, surface water and underground water. To remove such elements …
Thermodynamic analysis on molten slag waste heat …
Thermal energy recovery of pyrometallurgy slags is a worldwide problem that is widely concerned for decades. As chemical recovery method, molten slag cascade recovery method (MS-WHCR) is proposed in this work. As typical endothermic chemical reactions, pyrolysis, gasification, calcination and reforming reactions are applied in this method. …
Processing of Non-Ferrous Metallurgy Waste Slag for its …
The article presents an overview of the methods of processing slag from Waelz process, and various approaches employed by scientists globally, aimed at processing such slags. Despite several listed methods of processing slag from Waelz process, none entails a sufficient complex nature of its processing. In addition, the slag processed from the Waelz …
Physical and chemical characteristics of slag produced …
In the study, both fresh and weathered samples of production slag from the final Pb refining process were used to determine its physical parameters and chemical composition …
Sustainable Approaches for LD Slag Waste Management in …
Reduce, reuse, and recycle are important techniques for waste management. These become significant for improving environmental and economic condition of industries. Integrated steel industries are generating huge amounts of steel slag as waste through the blast furnace and Linz–Donawitz (LD) process. Presently, these wastes are disposed by dumping in …
Processing of Non-Ferrous Metallurgy Waste Slag for its …
The research results showed (Fig. 1) that the real waste in the form of slag from Waelz processing contained calcium, silicon, oxygen, iron, aluminum (also confirmed by the …
Analysis of direct shear test of incineration slag reinforced …
In order to simulate the interaction between incineration slag and waste tire strips, a linear model was used to simulate incineration slag, and a linear parallel bond model was used to simulate waste tire strips. ... Based on PFC 2D, the particle flow numerical simulation analysis was carried out on the direct shear test of tire strip ...