(PDF) Mineralogical characterisation and magnetic …
This study presents a proposed improved process of separating metallic iron from vanadium-bearing converter slag more efficiently.
Thermogravimetric analysis of converter slag reacted with …
After BOF slag was oxidized at 1300 ℃ for 240 min and cooled in the furnace (1 ℃/min), the grade of magnetic slag obtained by magnetic separation had a grade of 40.26%, a recovery of 70.95% ...
Efficient separation of iron elements from steel slag based on magnetic …
1. Introduction. Steel slag is a by-product of the steelmaking process. In fact, each ton of steel produces 110–150 kg of steel slag. China's steel slag reserves are more than 300 million tons, and the annual hoard continues to increase [1].Due to the different steel composition, scattered varieties of converter slag and complex composition exist, …
Application of Magnetic Separation to Steelmaking Slags for
Magnetic separation is used for separating metallic iron and iron minerals from the slag using magnetic machines (cross-belt magnetic separator, drum …
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Process of Re-Resourcing of Converter Slag | Journal of …
The process of "re-resourcing of converter slag" was put forward based on the analysis of the existing steel slag treatment process. The converter slag obtained from Jinan steel plant was studied. After grinding, the slag contained 3. 3% of iron particles, 54. 84% of magnetic part (wTFe = 20%), and 41. 84% of non-magnetic part, which could …
Slag Crusher Plant & Machine Manufacturer | Bhupindra …
Today, we have proud to say that we have designed and develop the frst ever metal chip recovery slag crusher plant in India. To develop the slag crushing plant is the big achievement for Bhupindra Machine Pvt.Ltd. We have developed the 100 TPH fully automized slag crushing plant on key basis.
Review Occurrence of steel converter slag and its high value …
After magnetic separation, steel converter slag is scattered throughout the open areas, damaging both the air and the water. In addition, outdated treatment …
Comparison study on hot state modification of converter slag …
The original steel slag was individually and uniformly mixed with 0, 4, 6, 10, and 18 wt.% Al 2 O 3 (relative to the mass of the original steel slag) in a sequential manner. 50 g of the mixed slag was loaded into a magnesia crucible. In converter smelting, magnesia refractory materials are the preferred choice for lining the converter due to …
Enhancement of Iron Recovery from Steelmaking Slag Fines …
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 …
Utilization of Converter Slag from Nickel Production by
The initial material was converter slag produced during the conversion of nickel matte obtained during reduction-sulfidation smelting shaft furnaces of sinter from oxidized …
Research on the Properties of Steel Slag with Different …
To promote the resource utilization of steel slag and improve the production process of steel slag in steelmaking plants, this research studied the characteristics of three different processed steel slags from four steelmaking plants. The physical and mechanical characteristics and volume stability of steel slags were analyzed through density, water …
Conversion of steelmaking slags
the basic operations are screening, crushing, and stage magnetic separation. In addition to these operations, the second and third types of plants require grinding.
Utilization of Converter Slag from Nickel Production by
solutions for integrated slag processing with maximum metal extraction and effective use of the silicate part remains a very urgent task. This work aims to develop a method of integrated ...
Application of Magnetic Separation to Steelmaking Slags …
These methods include crushing, sizing, magnetic separation ... to recover metallic iron from the converter slag, and yielded approximately 41.5% of iron in which the iron content was as high as ...
SOLUTIONS TO THE CONVERTER SLAG RECYCLING …
technological operations of screen separation, fractionation, and magnetic separation of dump slag. At present, this line has reached an annual capacity of 800–900 thousand …
An air-fluidized magnetic separator and its separation …
The presence of magnetic inert minerals (RO phase, Fe 3 O 4, Fe) in steel slag powder 13 enables the separation of these minerals from the slag to enhance its gelling properties and facilitate iron resource recovery, thereby improving the activity of steel slag powder. 14 However, during wet magnetic separation operations, hydrated active …
Steelmaking Slag Beneficiation by Magnetic Separator …
In this research article, the beneficiation of steelmaking slag with magnetic separator and its impact on quality of sinter, the usage of waste as flux of sintering and the effects of …
(PDF) Separation of steelmaking slag with mechanical …
Steelmaking slag is by-product of the steelmaking process and has a high content of iron. In order to recover this iron, steelmaking slag is processed with various methods such as crushing ...
Waste to wealth: Recovery of value-added products from steel slag
The iron values can be recovered by magnetic separation, leaching, crushing and sorting, reduction among others. ... It was observed that approximately 83% of vanadium was recovered by using 10% sodium carbonate solutions [7]. Laboratory scale ion exchange and reduction processes for the extraction of vanadium from SS …
Comprehensive utilization of steel slag: A review
Steel slag, the main solid waste in the steel-making process, is produced more than 120 million tons annually in China.Most of the steel slag was stored in the open air, which brought potential safety and environmental protection risks such as land occupation and infiltration of heavy metal components into the soil. In recent years, the …
Steel slag in China: Treatment, recycling, and management
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 …
Carbon mineralization of steel and iron-making slag: Paving …
Carbon mineralization technology has emerged as a promising method for permanently sequestering CO 2 by transforming it into a thermodynamically stable solid carbonate material. Recently, alkaline industrial waste, particularly from steel and iron-making processes, has been identified as a proper feedstock due to its high potential for …
About us – Slag Crusher Plant & Machine Manufacturer
To develop the slag crushing plant is the big achievement for Bhupindra Machine Pvt.Ltd. We have developed the 100 TPH fully automized slag crushing plant on key basis. Today BMPL have achieved the excellence and created a distinct identity for themselves in the business area. ... magnetic separators, vibrating equipments and other material ...
Use of Non-magnetic Fraction of Metallurgical Slags in
To extract metal inclusions, a sample of converter slag was crushed in a centrifugal impact crusher at an accelerator rotation speed of 70 m/s in a cycle with a roar . Crushed slag with a size of 0–5 mm was fed to magnetic separation in a weak magnetic field to obtain magnetic and non-magnetic products (Fig. 3).
SOLUTIONS TO THE CONVERTER SLAG RECYCLING …
SOLUTIONS TO THE CONVERTER SLAG RECYCLING PROBLEM IN METALLURGICAL PROCESSING N. B. Aitbaev,1 E. Kobegen,2 E. V. Skrazhevskaya,3 and B. M. Boranbaeva4 UDC: 669.046.56.004.86 ... the magnetic part from the converter slag fraction and metallic iron extraction was experimentally con-
Converter Slag
Steel converter slag consists of the mixture of metallic oxides produced when lime, dolomite, and other basic ingredients are transported to pig iron coming from a blast furnace and oxygen is forced over the pig iron to form crude steel in a converter higher than 1600 °C. During this process, the carbon (C), phosphorus (P), and sulfur (S), and so on are …
Solutions to the Converter Slag Recycling Problem in …
It was determined that the loss of iron with converter dump slag in JSC "ZSMK" after primary treatment on slag fields by removing of magnetic components is on the average 22.7 %, including 9,0 ...
Experimental study on indirect mineral carbonation using …
We provided samples of five different types of slag from company 'A' in South Korea: pig iron slag, non-magnetic steelmaking slag, non-magnetic pig iron slag, palletized slag and granulated slag. To extract Ca, HCl, CH 3 COOH, and NH 4 Cl were selected as extractants. Each extractant was diluted to a concentration of 2 M with …
Utilization of Converter Slag from Nickel Production by
The possibility of hydrometallurgical processing of converter slag from nickel production aimed at integrated use of mineral raw materials and environmental protection is shown. The scheme of hydrometallurgical processing of slag using hydrochloric acid is proposed. The method involves leaching the slag with hydrochloric …
Experimental setup for reaction between converter slag and
After BOF slag was oxidized at 1300 ℃ for 240 min and cooled in the furnace (1 ℃/min), the grade of magnetic slag obtained by magnetic separation had a grade of 40.26%, a recovery of 70.95% ...
Comprehensive utilisation of blast furnace slag
Introduction. China is the world's largest steel producer, with the China Iron and Steel Association estimating that the country's crude steel production in 2022 will be 935 million tonnes [Citation 1].Steel slag mainly refers to the blast furnace slag and converter slag produced in the process of iron making and steel making, and with the …
Phenol removal by activation of persulfate using magnetic …
Granularity (100 mesh) was obtained by crushing particles of steel converter slag. Steel Converter Slag particles (5 g) are doped into suspended sludge and mechanically mixed in various volumes (0.2, 0.5, 1.0, and 2.0 L) of suspended sludge (mass ratio of steel slag to sludge carbon). After 30 min of stirring, the mixture was put into an …
Utilisation of LD slag — An overview
Slag generated during steelmaking in basic oxygen converter (LD-Converter) is one of the important waste materials in an integrated steel plant. Generation rate of LD-slag is 150-
Steel Slag Grinding Plant
The steel slag after pretreatment is screened by a vibrating feed screen to remove large slag steel, and then enters the crushing magnetic separation system, where the steel slag is crushed and purified by a rod mill. The purified steel slag tailings has an iron content of less than 2% and a fineness of less than 10mm.