Processing of Low-Grade Chromite Ore for Ferroalloy
A laboratory table of dimension 1016 × 457 mm, with a deck size of 50′′ × 24′′ supplied by M/s. Denver, USA, was employed. The table shaking was adjusted with 1° declinations to lowest amplitude and highest frequency. About 10 kg of sample from each fraction was mixed with 20 L of water and made into homogenous slurry.
High-temperature modification and air-quenching granulation of steel slag
2.4 Preparation and characterization of air-quenched granulated steel slag. In the experiment of air-quenching granulation of steel slag, the following essential parameters are fixed: the temperature of slag is 1600 °C; the nozzle is Laval nozzle (the Mach number is 1.4); the air-quenching pressure is 0.3 MPa; the slag flow rate is 12.5 kg/min; and the distance between …
Grindability, Energy Requirements and Gravity …
Several studies have shown that shaking table and Falcon concentrator are effective methods for the separation of quartz from ironmaking slag, and these techniques have the potential to be used on an industrial scale.
shaking table high temperature slag iron
The BF slag is emitted at a very high temperature of 1600 Kelvin or above and thus contains a huge amount of waste heat of ∼ 1700 MJ/ton [4]. Yet, the high-temperature BF slag is conventionally treated by the water quenching method, which fails to recover the waste heat, …
High-temperature investigation of mould slag crystallization …
Methods for the characterization of mould slag crystallization with special emphasis on the single/double hot thermocouple technique (SHTT/DHTT) are reviewed. In the continuous casting process of steels, horizontal heat transfer is mainly influenced by the crystallization behaviour of the mould flux film. Here, both precipitation of crystals out of a liquid phase and …
(PDF) Kinetics analysis of iron oxide reduction by solid …
Table 1. Slag composition at the beginning of the smelting cycle (%). Composition. CaO. ... The high-temperature reduction of iron oxide suspension is characterized by having: rapid reaction ...
4 Types Of Mining Shaking Table For Mineral …
The mineral processing shaking table is a common equipment for separating fine-grained ores like gold, tungsten, and other heavy minerals. ... Conventional shaking tables are famous for their high recovery rates of …
Three-Stage Method Energy–Mass Coupling High-Efficiency …
High-temperature molten steel slag is a large amount of industrial solid waste containing available heat energy and resources. This paper introduces an efficient and comprehensive utilization process of high-temperature molten steel slag. The waste heat energy in the high-temperature molten steel slag can be fully recovered through the three-stage heat …
induction heating machine Manufacturer, induction melting …
Henan Foco Machinery Co., Ltd. is a professional induction heating machine manufacturer. Our main products are induction forging furnaces, induction hardening machines, induction brazing …
From Ore Body to High Temperature Processing of Complex …
In the discard slag practice, the slag produced is discarded as waste. In the duplex process, the slag produced in the HCFeMn production is used as the main source of manganese in the subsequent SiMn production process. In terms of slag chemistry, the main difference lies in the basicity (B 4) and resulting MnO content of the slag (Table III ...
In-situ visualization of high temperature slag corrosion …
Alumina-magnesia refractory is the main refractory material for lining, purging plug and nozzle of steel refining ladle, while the CaO–Al 2 O 3 –SiO 2 slags can cause their great damage during service. In this work, in-situ corrosion process visualization of the Alumina-magnesia refractories were carried out by preparing high-temperature resistant speckles on its …
The potential utilization of slag generated from iron
with commercial cement but high content of iron. ... Table 1 Composition of iron slag and steel slag Composition Iron slag (BF) (% w/w) Steel slag (BOF, EAF) (% w/w) Refs. Calcium (CaO) 30–50 30–60 Basu et al. (2008), Danilov (2003), Emery ... rapidly cooling on the molten BF slag from blast furnace (temperature is around 1500 C) with ...
High-Temperature Physicochemical Properties of High Alumina Slag …
The viscous behavior of BF slag plays an essential role in determining the performance and productivity of the ironmaking process. Many researchers have studied the effect of alumina on the viscosity of the BF slag system, which is summarized in Table 4.1 and Fig. 4.2.As early as 1987, Kou et al. [] pointed out that in the CaO–Al 2 O 3 –SiO 2 system …
High-temperature modification and air-quenching …
Air-quenching process can realize rapid cooling of molten slag in high-temperature region, and the ions in slag do not have enough time to rearrange and form crystal, and finally …
(PDF) Effect of CaCl2 Addition on Phosphorus
Effect of CaCl2 Addition on Phosphorus Distribution Between CaO–SiO2–FeOx–P2O5 Slag and Carbon-Saturated Iron at Steelmaking Temperature August 2021 Metallurgical and Materials Transactions ...
shaking table high temperature slag iron
This Flowchart is designed for Processing 1-2TPH Molybdenum Iron Slag for recovery iron and Molybdenum metals from slag. We provided a complete set of plant machines for our Taiwan …
Sustainable assessment and synergism of ceramic powder and steel slag
Solid waste management is a critical issue worldwide. Effectively utilizing these solid waste resources presents a viable solution. This study focuses on Iron ore tailings (IOTs), a solid waste generated during iron ore processing, which can be used as supplementary cementitious materials (SCMs) but have low reactivity, hindering their large-scale application …
Slag compositions (wt%) and hot metal temperature (°C).
In recent years, more and more high Al2O3 iron ores were used in East Asia, especially in China, which increased the Al2O3 content in blast furnace (BF) slag and resulted in poor metallurgical ...
Shaking Table (Theory OF Gravity Separation) Final
Using a shaking table separator is the most suitable technique for recovering fine-grained gold. They are also the most environmentally friendly. Shaking tables can recover up to 90% of the gold present in material between the sizes of 3 mm …
Recovery of Iron from Nickel Slag in Water Vapor at High Temperature
In order to recover iron from nickel slag, the authors investigated the effect of a water vapor atmosphere on the oxidation process of nickel slag. The phase constitution and microstructure of the solid products were characterized using x-ray diffraction and scanning electron microscopy with an energy dispersive spectrometer. The results show that the …
(PDF) Grindability, Energy Requirements and Gravity …
Grindability, Energy Requirements and Gravity Separation of Quartz from Blast Furnace Ironmaking Slag by Shaking Table and Falcon Concentrator May 2023 DOI: 10.3390/ECP2023-14691
(PDF) Industrial uses of slag. The use and re-use of iron …
The reaction temperature during the dephosphorization stage should be kept low, as the dephosphorization efficiency decreased sharply with the increasing temperature. In dephosphorization slag ...
Mineralogical characterisation and separation studies on …
The metallurgical waste slag is formed after high temperature reduction of chromite by pyroelectric furnace at 1700 • C which uses carbon as a reducing agent [1]. According to the carbon content ...
A study of the feasibility of upgrading rare earth elements …
A number of gravity separation techniques for rare earth elements (REE) minerals have been investigated and reported in the literature. These include the use of dense/heavy media, Falcon concentrators, Knelson concentrators, spiral concentrators, laboratory scale jigs, and shaking tables.Most of these methods have provided considerable REE minerals recovery …
Effect of EAF Slag Temperature and Composition on its …
3.1. Effect of Temperature on Slag Electrical Conductivity. One industrial slag sample selected to be used for determination of electrical conductivity at different temperatures. Chemical composition of used sample is shown in Table 2. The logarithmic values of measured electrical conductivity against temperature are shown in Fig. 2. It was ...
Effect of high temperature on reduction …
Table 2. Iron oxides FeO and Fe. 2. O. 3. existed in steelmaking. slag. Thus, due to the difficulty in distinguishing these two. ... oxide in steelmaking slag at a high temperature of 1823 K.
Adsorption Removal of Organophosphates from Water by Steel Slag …
Organophosphates are a type of emerging environmental contaminant, which can be removed effectively by adsorption. Here, modified steel slag was examined for its adsorptive performance in the removal of hydroxyethylidene diphosphonic acid (HEDP) from water. Compared to acid (55.3%, maximum removal rate) and base (85.5%) modification, high …
RESEARCH OVERVIEW ON RECOVERY OF WASTE HEAT …
The high temperature slag discharged from metallurgical industry has the characteristics of high temperature and large discharge. In 2017, the total amount of liquid slag produced by the world iron and steel industry is about 913 million tons and the amount of waste heat resources contained in liquid slag is
Shaking Table Separation
Shaking table separation is suitable for separation of fine particle materials and is widely used for separation of tungsten, tin, tantalum, niobium, and other rare metal and noble …
Study on the mechanism of iron-rich coal gasification slag …
The appearance of different diffraction peaks can reflect the change of phase structure of coal gasification slag at high temperature, so as to explore the influence of structural change on NO conversion. Fig. 4 shows the XRD patterns of GS and Fe-GS at room temperature and after high temperature reaction. Coal gasification slag is formed by ...