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Powder Technology | Vol 392, Pages 1-716 (November 2021
Corrigendum to "Mathematical simulation of two-phase flow and slag entrainment during steel bloom continuous casting": [Powder Technology 390 (2021) 539–554] Wei Chen, Lifeng Zhang, Yadong Wang, Sha Ji, ...
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Hydration superposition effect and mechanism of steel slag powder …
Steel slag has great potential as a supplementary cementitious material, because its composition is similar to cement and it has a certain cementitious activity after grinding it into micronized powder [[11], [12], [13], [14]].However, the low hydration activity of steel slag compared to cement limits its application [15], [16], [17], and the reasons for this are as follows: (1) The …
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Titanium Slag Production Process: Technologies To Improve …
The process of titanium slag production is the process of smelting ilmenite concentrate in arc ore-thermal furnaces (OTF) in a semi-closed mode with the use of a powder mixture to obtain titanium slag of a specified content of iron oxide, as well as associated metal.
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Powder production technologies
The resultant powder is highly irregular in particle shape, therefore ensuring good "green strength" so that die-pressed compacts can be readily handled prior to sintering, and each particle contains internal pores (hence the term "sponge") so that the good green strength is available at low compacted density levels.
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Formulation of blast-furnace slag for use in hydraulically bound
The atomization of blast furnace slag powder can be employed to produce spherical and amorphous powder in a size range below 200 μm. The viscosity of the melt is the most …
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Modeling of Powder Production During Centrifugal Atomization
The Centrifugal atomization process finds wide application in the production of sprays & droplets [] as well as polymer microspheres [], dry slag granulation [3, 4], metal powder production [5,6,7], etc.There is an increasing demand for powders and granules as a form of starting material for several industrial applications such as architectural coatings, additive …
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Steel slags in cement-based composites: An ultimate review on
Activation techniques improve the binding properties of steel slag powder, potentiating its use as a supplementary cementitious material (SCM). ... around 0.3% of primary steel worldwide is still made using OHF technology [21] Stainless steel production ... The iron content can represent a problem to apply steel slag in the clinker production ...
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Powder Production Technologies | BHM Berg- und
Production of metal powder has been done for decades. Apart from some methods using crushers for powder production, the atomization of a molten liquid melt is the most common way to produce metal powders. Therefore different melting technologies (open furnace, vacuum furnace, induction melting or plasma melting, and more) as well as atomization techniques …
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Study on hydration mechanism and ratio optimization of slag …
Slag powder. The material experimented with was slag powder, sourced from the Hebei Baifeng Mineral Products Processing Plant. It is classified as S95 grade water …
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Research progress of hydrogen production and CO2 fixation in …
[27, 28] According to the difference in production technology, steelmaking can be divided into long processes and short processes. ... Sun et al. used steel slag to fix carbon, fully mixed steel slag powder with water at a mass ratio of 1:2, and introduced CO 2 with purity of 99.5% into mortar for 6 h to obtain carbonized steel slag, ...
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Application of vertical mill in slag powder production line
Vertical mill slag powder equipment plays a key role in the processing of slag. The application of the vertical grinding slag micropowder technology makes the processing of slag more elaborate. In the cement manufacturing production process, the slag is used as raw material to realize the recycling of waste and reduce the pollution of the slag ...
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Seashell powder calcined slag cement: A novel green low-carbon …
The findings revealed that the addition of seashell powder and calcined slag improved the material's toughness and promoted the formation of cementitious products such as carboaluminate phases, C-A-S-H gel, and ettringite, with a 15% mixture of seashell powder and calcined slag increasing the compressive strength ratio of SCSC to ordinary ...
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What is the technical scheme of the slag powder process?
Guilin Hongcheng as a slag mill manufacturer, today for you to introduce the slag powder process technology scheme. This scheme is included in the national catalogue of advanced applicable technology and equipment for the comprehensive utilization of industrial resources, and is suitable for the production of slag cement powder by using slag solid waste.
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Slag Powder: A Sustainable and Valuable Resource
Slag powder is a fine-grained byproduct produced during the separation of metal from its ore in various high-temperature metallurgical processes, such as smelting and refining. It is composed of various minerals and compounds, and its specific composition depends on the type of ore being processed and the production methods employed. Types of Slag Powder Ground […]
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Summary and Prospect of Steel Slag Treatment Technology at …
This is an article in the field of metallurgical engineering. As a solid waste produced in the process of steelmaking, the steel slag has the characteristics of large output, high temperature, complex chemical composition and poor stability. The resource utilization rate of steel slag in China is less than 30%, resulting in the waste of valuable resources contained in …
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Comprehensive Utilization Technology of Steel Slag
Steel slag is the waste generated in the steelmaking process and includes ferric oxide and the impurities of some infusible matters. It is the by-product when slag-forming …
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Effect of steel slag powder and stone powder by-product from
Incorporating steel slag (SS) and stone powder (SP) as supplementary cementitious materials (SCMs) in cement and concrete products is an effective approach to promoting environmental protection. Recently, the effect of using steel slag alone is not satisfactory and the performance of blended cementitious materials is expected to improve …
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Effects of Steel Slag Powder Content and Curing Condition on the
The main reason is that steel slag powder, as a relatively more inert powder particle than GGBFS powder, reacts much less than GGBFS powder in the early stage and reduces the production of reaction products, which can delay the setting of the paste. From the SS0 group to the SS10 group, the initial and final setting times increased by 10.5% ...
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Potential Applicability of Air-Cooled Ladle Furnace Slag Fine
Electric arc furnace oxidizing slag (EAFOS) represents 80% of the electric arc furnace slag generated. Recently, EAFOS has been utilized as high value-added functional …
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Different carbon treatments for steel slag powder and their …
Steel slag powder is the waste slag produced in the steelmaking process, and its emissions account for about 15%–20% of crude steel production in China (Shi et al., 2022a; Shi, 2004; Wang et al., 2011).However, a large amount of steel slag cannot be effectively utilized, which resulting in a large amount of steel slag stockpiled (Li et al., 2021).
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Laboratory Preparation and Performance Characterization of Steel Slag
Steel slag is generally regarded as a supplementary cementitious material in cement-based materials, which is conducive to the realization of the goal of carbon peak and carbon neutralization. However, the lower cementitious activity and poorer volume stability of steel slag limit its high dosage in cement-based materials. In this paper, steel slag ultrafine powder …
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Mock-up performance evaluation study for crack reduction of blast
Admixtures are used in the production of specific types of concrete ... application technology for blast furnace slag concrete, (2013). ... reduction of blast furnace slag powder concrete mixed ...
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Development of slag-based filling cementitious materials and their
The XRD patterns revealed a prominent peak in the slag powder, accompanied by a few minor diffraction peaks, indicating a predominance of amorphous phases with minimal crystalline phases, suggesting the latent reactivity of the slag. ... According to the technical specifications for whole tailings paste backfill production technology in ...
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Self-healing cold mix asphalt containing steel slag: A sustainable
Apart from the microwave power and irradiation time, which significantly influence the early strength of the asphalt mixture (Wang et al., 2020a), the incorporation of conductive additives such as electric arc furnace slag (Liu et al., 2021), steel slag (Li et al., 2018a) steel wool fiber (Kargari et al., 2022), activated carbon (Jahanbakhsh et ...
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A review of the application of steel slag in concrete
Modern industrialization leads to an increasing demand for steel around the world, the production of one ton of crude steel generates a substantial amount of steel slag (SS 1), ranging from 130–200 kg.The accumulation of SS poses economic and environmental challenges, particularly in developing countries with low utilization rates.
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China FTM® Slag Powder Production Line
Superfine slag powder production line is one kind of ultrafine powder production. With continuous development of highly fine grinding equipment with high yield, production of ultrafine powder becomes a reality. Superfine slag powder production line can be divided into two types, namely open circuit type and open circuit type. When selecting ...
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A Review on the Carbonation of Steel Slag: Properties, …
Steel slag is a by-product generated during the steelmaking process, with a production rate of approximately 10–15% of the crude steel quantity [].Large amounts of steel slag have been produced annually in many regions [].As a major steel producer in the world, crude steel production in China reached 1.01 billion tons in 2022 while producing more than 160 …
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Synergistic effects of lithium slag and coarse limestone powder as
The financial support provided by the Research and demonstration of key technology and equipment for scale decomposition and gradation of coal gasification ash and slag of China (2023YFC390430 3), Key project of National Natural Science Foundation of China (52234004), and Research on the preparation of low carbon high performance concrete with ...
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Utilization of Gasification Coarse Slag Powder as Cement Partial …
Coal gasification coarse slag (GFS) is a byproduct of coal gasification technology, which contains abundant amorphous aluminosilicate minerals. GFS has low carbon content, and its ground powder has potential pozzolanic activity, which can be used as a supplementary cementitious material (SCM) for cement. Herein, GFS-blended cement was studied in terms of …
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Influence of steel slag powder on the characteristics of …
Steel slag is an industrial by-product arisen from the steel manufacturing process, the amount of which is estimated to be about 12–20% of total steel production [1, 2].In 2022, statistics show that 1.013 billion tons of steel were manufactured in China in which approximately 0.162 billion tons of steel slag was produced.
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