Jul 28 2016 Steelmaking slags are usually processed for iron recovery by dry magnetic separation. The recovered iron-rich products are recycled back into the ironmaking and steelmaking processes to replace high-cost steel scrap and iron ores. However current slag processing is far away from optimum conditions especially for slag fines with small particle sizes resulting in generation of nonrecyclable .
Jan 10 2014 Evolution of FeO t a CaO b and P 2 O 5 c contents in the magnetic fractions of LD slag as function of intensity of magnetic field of wet magnetic separation. The grinding of steel slag and magnetic separation are necessary for a better separation of a high grade iron compounds which can be directly recycled in converter steel mill.
Jan 01 2019 Fig. 1 shows the particle-size distribution of the iron ore jigging tailings sample and the concentration feed sample grindingclassification at 1.4 mm.As observed the d 80 of the tailings sample is approximately 4000 m 4 mm with only 4 of the particles below 37 m 0.037 mm. The d 80 of the concentration feed sample is 840 m 0.840 mm with only 4 of particles below 10 m 0 .
Fig. 3 Recycling efficiency of iron from raw steel slag and the steel slag with an acid extraction using magnetic separation with a magnetic field intensity of 0.4 T a recovery of the magnetically-separated materials and b the iron content of the magnetically-separated materials.
Jun 03 2014 Exposure to iron pipes and steel rebar such as the materials found in most hatcheries affects the navigation ability of young steelhead trout by altering the important magnetic
Mar 26 2021 To tackle the shortage of iron ore we must utilize low grade iron ore tailing. Steel production in India which consumes only 59 kilograms of steel per
The method of claim 1 wherein step e is performed by subjecting a faction having a particle size of 61-74 m to wet magnetic separation at a magnetic field strength of 2500-3500 Gauss to separate crystalline iron and iron carbide as magnetic materials subjecting a fraction having a particle size of 75-104 m to dry magnetic separation at .
tite ore in sinter mix enhanced productivity of blast furnace due to improved reducibility of the sinter improvement in the desulphurisation capacity of the slag and decreased coke consumption 7151. Other Applications in Iron and Steel Making Thakur and Das 4 have described several miscellaneous uses of red mud in iron and steel making.
A process for treating chromite-bearing ores to obtain useful mineral values especially platinum group metal therefrom wherein the ore is separated into magnetic and non-magnetic fractions the non-magnetic fraction containing a substantial portion of the platinum group metals is concentrated and smelted to produce a metal layer containing platinum group metals and the platinum group .
Steel - Steel - Electric-arc steelmaking About one-quarter of the worlds steel is produced by the electric-arc method which uses high-current electric arcs to melt steel scrap and convert it into liquid steel of a specified chemical composition and temperature. External arc heating permits better thermal control than does the basic oxygen process in which heating is accomplished by the .
Waste copper slag is a refractory material with high iron content but it is difficult to recovery iron minerals from the slag because the iron mainly occurs in fayalite. A new technology of coal-based direct reduction-magnetic separation process was developed to recover iron from the slag assaying 39.85 Fe total and 0.33 Cu.
Suresh 2016 Processing of Ferruginous Chromite Ore by Dry High-Intensity Magnetic Separation Mineral Processing and Extractive Metallurgy Review 373 196-210 DOI 10.108008827508.2016.1168418