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A new technology, a freeze-dissolving method, has been developed to isolate nanoparticles or ultrafine powder and is a more efficient and sustainable method than the traditional freeze-drying method. In this work, frozen spherical ice particles were produced with an aqueous solution of sodium bicarbonate or ammonium dihydrogen phosphate at …
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In this study, composite blast furnace slag powder (CBFS) was prepared by using RM, FA, DG, and BFS based on the synergistic effect of multiple solid wastes and the theory of medium-calcium systems (Fig. 1).Subsequently, CBFS-cementitious materials (CBFS-PO, that is, 50% CBFS + 50% Portland Cement PO 42.5) were prepared to …
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This study investigated the effect of the interaction between ultrafine slag powder (USL) and limestone (LS) on the rheology behavior, microstructure, and fractal features of UHPC. The results indicated that …
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Ultrafine, highly active coal gasification slag (HCGS) was produced via a sustainable, green dry-ball-milling method. Coal gasification fine slag (CGS), a potential environmental pollutant, was used as a new source of rubber filler without pre-treatment, enabling waste utilisation. HCGS was added to styrene-butadiene rubber (ESBR) …
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What is the scope for optimization of the production process for practical applications? How stable is the composite powder in terms of shelf life and storage? ... . 2022 Aug; 15(15): 5408. b) Laboratory Preparation and Performance Characterization of Steel Slag Ultrafine Powder Used in Cement-Based Materials. Sustainability 2022, …
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The VRM is engineered to handle high-volume production, making it suitable for an annual output of 300,000 tons of slag ultrafine powder. This capacity is achieved through the …
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The iron-making and steel-making industries produce four types of slags, named after the processes from which they are produced (Fig. 2): Blast Furnace Slag (BFS), Basic-Oxygen Furnace Slag (BOFS), Electric-Arc Furnace Slag (EAFS), and Ladle Furnace Slag (LFS), and the type of slag produced is dependent on the desired steel …
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The most direct problems for users in the production process of ultra-fine slag vertical mills are mainly equipment noise or vibration, no powder output or reduced output, and the powder becomes coarse or fine. The main noise or vibration of the slag ultra-fine vertical mill is too loud. The possible causes and solutions are as follows: the ...
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Insights into the reinforcing mechanism for CO 2 atmosphere in the application process of steel slag ultra-fine powder. Constr. Build. Mater., 209 (2019), pp. 437-444. ... CO 2 capture using carbide slag modified by propionic acid in calcium looping process for hydrogen production. Int. J. Hydrogen Energ, 38 (2013), pp. 13655-13663.
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The cementitious materials in this study were prepared by dry mixing ultrafine slag powder (USP) and cement in varying molar ratios. The USP was provided by Tongling Nonferrous Metals Group New Material Technology Co., Ltd., comprising a blend of 52% industrial tailings powder and 48% grade I fly ash.
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In this paper, steel slag ultrafine powder (SSUP) was prepared in the laboratory through mechanical activation combined with grinding aids. Furthermore, the …
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Mechanical grinding of steel slag is investigated and characterized using X-ray diffraction and size analyzer. The results indicate that the obtained ultrafine powders contain active mineral ...
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In this paper, steel slag ultrafine powder (SSUP) was prepared in the laboratory through mechanical activation combined with grinding aids. Furthermore, the grinding time was optimized.
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To address the challenge of using ultrafine tailings, this work utilized a slag cemented ultrafine tailings paste backfill (SCUPB) composed of slag, Portland cement, …
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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 …
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The VRM is capable of producing slag ultrafine powder with a consistent particle size distribution and high quality. The integrated classifier system ensures that the powder meets the required fineness specifications, which is crucial for its end-use applications. Advantages of the Annual Production of 300,000 Tons of Slag Ultrafine Powder VRM. 1.
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The test results showed a purity of 99.17%, a whiteness of 98.1 and an average volume particle size D(4, 3) of 2.053 μm for the prepared high-whiteness and ultrafine Al(OH) 3 powder with uniform powder morphology. A cost analysis based on laboratory-scale data and market price indicates that a net profit of $431.6 can be …
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High temperature slag sensible heat recovery and tail slag ultrafine powder preparation; ... putty powder, modified mineral powder, etc. Production of high-performance composite mineral admixtures by multi solid waste collaborative cementation; ... Metallurgical solid waste refers to various wastes generated during the production process ...
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Superfine slag powder production line is also called ultrafine slag micro powder plant or superfine slag powder making plant. Superfine slag powder production line is used to crush non flammable materials of which Mohs hardness is no more than seven degree and water content is less than 6%.
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1. Introduction. Steel slag is a by-product of steel manufacturing [].Approximately 160 kg of steel slag is generated per ton of steel produced [].The common chemical compounds in steel slag are SiO 2, CaO, Fe 2 O 3, Al 2 O 3, and MnO [3, 4].The major mineral components of steel slag are C 3 S, C 2 S, C 4 AF, RO phase, and free …
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Insights into the reinforcing mechanism for CO 2 atmosphere in the application process of steel slag ultra-fine powder
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The composite micronized powder is prepared by using blast furnace slag (BFS), water-quenched manganese slag (WQMS), manganese tailing slag (MTS) and desulfurization gypsum (DG) and grinding aid (GA) through orthogonal test optimization design. The effect of the doping amount of each solid waste on the fluidity, activity at …
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In this paper, we discussed the influence of steel slag ultra-fine powder under CO 2 atmosphere including the influence of the experiment parameters on the CO …
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In this paper, a new process for the production of pre-reduced sinter based on sensible heat updraft of sinter was put forward. The effects of sinter temperature and reducing gas composition in the pre-reduction cooling section on metallization rate and sieve size distribution of pre-reduction sinter were studied.
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Process flow of ultra-fine slag grinding. The process scope of the ultrafine composite mineral admixture grinding system includes the following steps: starting from the bottom of the storage at ...
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The process of preparing SSUP in the laboratory is as follows: the steel slag is ground by a horizontal ball mill for 50 min and then ground with a planetary ball mill mixing with the …
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As the titanium industry rapidly develops, low-grade ilmenite resources are drawing global attention. The direct use of low-grade ilmenite can result in low production efficiency and heavy pollution. In addition, the production of high-titanium slag via electric furnace melting consumes significant energy and possesses low production efficiency. …
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Abstract: In this experiment, ultrafine iron phosphate micro-powder was prepared by hydrothermal method which used phosphate slag as an iron source. The effects of reaction temperature, surfactants type and amount on its particle ... along with the phosphating process, the production of phosphate slag will be inevitable[6-8]. The production of
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Use of slag. In industrial production, slag plays an important role. Some major factories refine and process slag into slag cement, slag micro powder, slag powder, slag Portland cement, and slag wool. Blast furnace slag can also be used as raw materials for cast stone, glass-ceramic, fertilizer, enamel, ceramics, etc. (1) Glass-ceramic
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Ultrafine copper powder has the excellent characteristics of both copper and ultrafine particles and has been widely used in industry. Different fields have different requirements for ultrafine ...
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