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 be …
These methods include crushing, sizing, magnetic ... as a bioadsorbent, the MKGM has a promising potential for the removal of Fe (Ⅲ) ion from aqueous solutions. ... A converter slag is a compact ...
Grinding, sieving and magnetic separation were combined to recover metallic iron from the converter slag, and yielded …
GREENY (GRinding Energy EfficiencY) is a collaborative research project focused in developing the beneficiation route of difficult to process secondary raw materials, such as industrial slags. Target is to develop innovative processes involving selective, energy-efficient crushing and separation processes of slags.
The nickel converter slag was provided by Kalgoorlie nickel smelter and collected from a historic pile. The slag was prepared by a combination of jaw crushing, cone crushing and rod milling, followed by pulverised and sieved to produce a sample that passed 75 μm. All the samples used in this study were under 75 µm unless specified.
of scrap and dump slag indicated the total amount of extracted iron (27.6%) to be significantly less than its proportion in the dump (64.6% of the total iron content). The …
Request PDF | Optimization of magnetic separation process for iron recovery from steel slag | To improve the efficiency of iron recovery from steel slag and reduce …
This article deals with the dissolution of blended copper slag (flash and converter furnace) in hydrogen peroxide and acetic acid in the presence of ultrasound. The parameters that are effective on leaching efficiency, such as leaching temperature, leaching time, ultrasound power, acetic acid concentration, and hydrogen peroxide concentration, …
However, due to the high iron content of converter steel slag [4] and its hard texture, its crushing and fine grinding into steel-slag micronized powder will significantly increase the cost of ...
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A converter slag is a compact and abrasive raw material containing CaO and Fe. The investigations showed that a multi—stage crushing, classifying and magnetic separation operations influence ...
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% ...
After cooling by the slag conveyor, the copper concentrate containing 29.44% copper and 30.39% iron and the iron concentrate containing 46.93% iron and 0.4% copper are obtained by the combined process of magnetic separation and flotation. The process flow is shown in Fig. 3 (Zhou et al., 2014).
Step 1 Steel Slag Crushing. After the initial crushing by a jaw crusher, the steel slag is reduced to a size smaller than 60 mm. Then, the crushed steel slag is conveyed to a vibrating screen, where steel slag particles larger than 25 mm in diameter are transported to a cone crusher for secondary crushing, resulting in a particle size …
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 …
Steel slag is calciumsilicatic, with a CaO range of 38–48%, and it has a SiO 2 range of 11–20%. The Fe in steel slag is in the form of steel, FeO, and iron-bearing minerals. These components can be separated from the steel slag by magnetic separation for the sinter and blast furnace or may be used in steelmaking.
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 ...
After magnetic separation, steel converter slag is scattered throughout the open areas, damaging both the air and the water. In addition, outdated treatment approaches also make the slag cannot meet requirements of follow-up processing (Wang, 2021). Therefore, as China's increasing steel production, it seems to be a massive issue …
The slag samples were mixed with water and the slurry was fed into the tube device. Magnetic particles adhered to the glass wall and non-magnetic particles bypassed with water. The best result in Wang et al.'s study was that the slag sample with 24.59% Fe was upgraded to a magnetic concentrate with 40.38% Fe with 26.13% yield (Wang et …
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% ...
A novel and green catalyst magnetic steel slag-sludge carbon were synthesized. ... 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 …
nverter slag crushing magnetic solutions. aluminum slag crushing in south africa. slag crushing plant in south africa. ... Atoll South Africa is a leading supplier of superior quality construction materials and solutions We are an open cast mine located in Springs/Benoni, Gauteng South Africa producing crushed Dolomitic stone with a lifespan of 37 plus years …
It is found that the removal rate of hard-to-grind minerals in steel slag is the highest when steel slag enters magnetic separation particle size of 1 mm and magnetic field strength of 1400 Gs. ... Considering that the SS raw material contained large-sized particles, a roll crusher model (FT3SGWOXTS) was used to crush the SS to − 3, − 2 ...
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% ...
The investigations showed that a multi—stage crushing, classifying and magnetic separation operations influence successful steel recovering from slag, while …
There are several options of metal value recovery including crushing, grinding, magnetic separation and ... Roasting of copper converter slag containing 4.03% copper, 1.98% nickel and 0.48% cobalt ...
1084 Waste Management & Research 36(11) (Jena et al., 2015). The size of the converter slag should be reduced with a series of crushers before the magnetic separation step in order to liberate ...
(5) Process the smelting slag or intermediate products. For example, in pyrometallurgical copper making, the slag in flash furnace has copper content 1–2%. Mineral processing will render the copper concentrate with copper content 24%, and copper recovery is around 80%. The slag in the converter for copper matte converting has …
The introduction into manufacturing practice of the technological route for converter slag processing involving extraction of finely dispersed metal using the …
Keywords Converter slag Free calcium oxide Alumina addition Viscosity Energy consumption 1 Introduction Since the beginning of the twenty-first century, China's ... treatments, including crushing, magnetic separation, siev-ing, blending, and drying. Subsequently, the extraction of f-CaO in steel slag was achieved by heating with ethylene
technologies of slag waste processing to extract valuable components do not find positive results [10]. Waste slag masses are moved from place to place, mixed, and as a result of crushing and separation, the content of the 100 mm fraction in the dumps increases, making it much more difficult for further processing. The area occupied by …
Fig. 2. Steelmaking slag is subjected to the following four process-es: ① solidify and cooling of the hot molten slag, ② crushing and magnetic separation treatment of the slag to …
Menad et al. recently reported their research work on treating BOF steelmaking slag through various crushing, grinding, screening, and dry and wet magnetic separation stages beginning with 18,000 gauss …
The pregnant leach solutions contained 15.9 g/L of ferric iron. The subsequent ferric leaching of copper converter slag flotation tailings containing 0.53% copper and 2.77% zinc with the pregnant ...
Grinding, sieving and magnetic separation were combined to recover metallic iron from the converter slag, and yielded approximately 41.5% of iron in which the iron content was as high as 85%, and ...
Possibilities for minimizing copper losses in converter slags include: (1) settling the molten slag to recover entrained matte and copper, (2) smelting the slag with a suitable reductant to recover a copper-iron alloy or a low-grade matte. (3) beneficiation of slags by magnetic separation, and. (4) treatment of the slag by flotation.
3.3. Physical properties. The typical copper slag is generally black or dark brown in colour and its density is in the range of 3.2 – 4.5 g/cm 3, mainly depending on the content of Fe (Sarfo et al., 2017b).The average true density of copper slag is approximately 3.8 g/cm 3, which is denser than the ordinary natural aggregates (Shi et al., 2008). ...
In this paper, a converter steel slag from a plant in China was used as the main experimental material. The influence of different magnetic separation processes on …
Slag Management: Product marketing in the best interests of the customer. We have taken a close look at the potential uses of our products and hence the standards they need to meet. Constant contact with our customers, public agencies, and authorities has ensured ready market acceptance for our products. Our slag products meet the demands of a ...
PROCESS. We have modern technology for the conversion of different types of flexible materials, which allows us to obtain complex geometries in a wide range of dimensions and with tight tolerances as the current industry demands. Our technology also enables us to convert engineering grade materials to offer tailored solutions that increase our ...