Slag treatment method

Comprehensive utilization of steel slag: A review

2023年5月15日  The most popular methods for treating steel slag are the hot splash method and the hot smothering method in China, which have a wide variety of applications, low costs, and 2018年8月1日  Steel slag is the main waste product in the steelmaking process Because of its chemical composition and technical properties, it can be reused as raw material in steel plants Steel slag in China: Treatment, recycling, and management2018年8月1日  Steel slag is the main waste product in the steelmaking process Because of its chemical composition and technical properties, it can be reused as raw material in steel plants Steel slag in China: Treatment, recycling, and management2014年2月19日  The current widely used process for BF slag treatment is the water granulation method, such as INBA which can obtain vitreous slag product as cement chamotte This Current Development of Slag Valorisation in China

Granulation and Heat Recovery from Metallurgical Slags

2019年12月9日  In this paper, the slag granulation and heat recovery options are reviewed and given a critical evaluation, aiming to provide a basis for future directions in slag handling The 2019年5月23日  Steel slag is the waste generated in the steelmaking process and includes ferric oxide and the impurities of some infusible matters It is the byproduct when slagforming Comprehensive Utilization Technology of Steel Slag2013年7月1日  Steel Slag (SS) is a main solid waste in the iron and steel industry, and its treatment technologies include the hotSS splashing method, the airgranulation method, the Treatment process and utilization technology of steel slag in Steel slag is the main waste product in the steelmaking process Because of its chemical composition and technical properties, it can be reused as raw material in steel plants and can Steel slag in China: Treatment, recycling, and management

Treatments and Recycling of Metallurgical Slags

2018年11月7日  Slag in ironmaking and steelmaking processes has several metallurgical functions such as preventing contamination by atmosphere, providing thermal insulation, and removing impurities in the liquid metal Slag 2018年8月1日  In this paper, we reviewed steel slag treatment, recycling, and management in China Although China’s annual slag production reached more than 100 million tons, its utilization rate is only 295% The majority of Chinese enterprises have adopted traditional steelmaking methods, and the steel slag generated using these approaches is about Steel slag in China: Treatment, recycling, and management2013年10月1日  The molten steel slag produced from the steelmaking furnace goes through different means of processing, such as hot steel slag splashing after crushing screeningmagnetic separation process Comparative Analysis of Steel Slag Characteristics and Treatment Process2024年6月26日  The Inbar method (INBA) is a blast furnace slag treatment technology developed by PW, Luxembourg [6] The working principle of the Inbar method is that the slag flowing out of the slag trench is granulated through the slag tank, the slag and water enter the slag tank through the slag channel, the steam is dischargedComprehensive utilisation of blast furnace slag Taylor

Review Accelerated carbonation of steel slag: A review of methods

2024年1月12日  Steel slag carbonation is a process that involves the pretreatment of steel slag by introducing CO 2, which allows the fCaO/fMgO components to react with CO 2, forming thermodynamically stable carbonates [15], [16], [17] These carbonation products can serve as nucleation sites for the hydration of silicates, enhancing the early strength of 2013年7月1日  Due to the difference of cooling and treatment processes (rolling method, hot braised method, layer pouring method), basic oxygen furnace (BOF) steel slag can be mainly classified as roller steel Treatment process and utilization technology of steel slag in 2021年11月1日  Molten blast furnace (BF) slag with critically high discharged temperature of 1450–1650 °C [1] contains thermal energy of about 1770 MJ/t [2] Air cooled and water quenching methods are the main methods for slag treatment [3], which produce air cooled BF slag (ACBF) and granulated BF slag (GBF), respectivelyGranulation performance by hybrid centrifugalair blast 2020年2月27日  utilization Among all kinds of slag treatment methods, dry centrifugal granulation has the advantages of small particle size and high vitrification, which is a developmental slag treatment process The slag particles produced by centrifugal granulation are typical semimelt and widescreening particles This paper reviewsRESEARCH OVERVIEW ON RECOVERY OF WASTE HEAT

Comprehensive Utilization Technology of Steel Slag

2019年5月23日  The disadvantages of roller method are that it has a higher requirement for the fluidity of slag, it must be liquid lean slag, the treatment rate of slag is lower, there is still a large amount of discharge of dry slag, and explosions may occur with misoperation2013年12月1日  Hightemperature waste heat from the iron and steel industry, as shown in Fig 1, are mainly stored in products, molten slag and waste gas [2]Molten slag, as a kind of byproduct during the steelmaking process, is exhausted in extremely high temperature and thus, it carries a great deal of highgrade heat accounting for 10% of waste energy in steel industry A review of waste heat recovery technologies towards molten slag 2020年10月15日  SS can be classified into many types according to the steps of the smelting process, including electric arc furnace slag (EAFS), basic oxygen furnace slag (BOFS), ladle furnace slag (LFS), argon oxygen decarburization slag (AODS), and continuous casting slag (CCS) The methods of steel slagbased carbon capture and storage (SS–CCS) may be Cotreatment of Waste From Steelmaking Processes: Steel Slag 2021年12月4日  pelletized blastfurnace slag, expanded slag ball and dry slag, have different function 3 WaterQuenching process So far, water treatment method is widely used in the cooling method of blast furnace slag There are many kinds of water treatment method for BF SLAG, such as Advection Sedimentation Tank, RASA, INBA, MTC, TYNA, and RASAA Review of Granulation Process for Blast Furnace Slag

A review of metallurgical slag for efficient wastewater treatment

2022年12月20日  Metallurgical slag contained abundant metal oxides, such as Fe 2 O 3, Al 2 O 3 and CaO, which had high catalytic activity and provided a potential source of metals for wastewater treatment In addition, metallurgical slag also had a high specific surface area, which also provided favorable conditions for the removal of pollutants2016年6月1日  The analysis on environment impact also clarifies that the DSG is an environmentally friendly method for slag treatment Furthermore, the DSG method represents a possibility to recover the heat from hightemperature blast furnace slag and turn it into a valuable material with a profit of 929$/tslagEnergy–environment–economy evaluations of2023年12月1日  Borax roasting method is a new type of rare earth molten salt electrolysis slag treatment method, due to the low melting point of borax, its formation of the liquid phase can increase the contact area with the reactants, which in turn promotes the defluorination reaction, so that the rare earth fluoride is converted to REOs, and fluorine is Review of efficient recycling and resource utilization for rare 2016年6月1日  The analysis on environment impact also clarifies that the DSG is an environmentally friendly method for slag treatment Furthermore, the DSG method represents a possibility to recover the heat from hightemperature blast furnace slag and turn it into a valuable material with a profit of 929$/tslagEnergy–environment–economy evaluations of

A Review of Slag Refining of Silicon Alloys JOM Springer

2020年11月19日  Slag refining of silicon has been modified in recent years by combining the process with solvent refining, in which an alloy of silicon is first treated by slag and then solidified under controlled conditions to yield highpurity silicon crystals This paper discusses the effect of alloying elements on the efficiency of slag treatment A set of criteria are established and 2021年2月5日  The gas quenching dry slag granulation technique is one of the most promising slag treatment methods due to realize efficient waste heat recovery as well as high valueadded resource utilization To better understand the granulation characteristics and to achieve high waste heat recovery efficiency in the gas quenching granulation technique Experimental investigation on granulation characteristics and 2024年3月28日  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 Research on the Properties of Steel Slag with DifferentThe present invention relates to a waterwashing type slag treatment method Slag drops to a waterwashing sieving machine through a raw material collecting hopper, and the slag with different specifications are separated; after residual steel of the slag with the different specifications is separated by a magnetic separator, the slag with the maximal specification is Water washing type slag treatment method Google Patents

Vanadium extraction from steel slag: Generation, recycling

2024年2月15日  Leaching is a direct extraction method of vanadium from steel slag, including direct leaching，roastingleaching and other related leaching methods (Chen et al, 2017; Xiang et al, 2018b) At present, roastingleaching is the only steel slag treatment method that has been put into largescale industrial production (Lee et al, 2021)2021年11月5日  Technologies for remediation of wastewater by industrial solid waste have recently attracted interest Acid mine drainage is an extraordinarily acidic and highly heavy metal ions contaminated leachate which posed some Mechanism of Acid Mine Drainage Remediation The existing steel slag processing technology used in China and its current state,including different types of technology and its principle,are briefly introduced in this paperThree types of treatment process for slag,iehot stew method,wind crush method and drum method are compared and analyzedThe advantages and disadvantages for these technologies are Characteristics of steel slag treatment processes in China2011年5月18日  The invention discloses a tungsten slag treatment method The tungsten slag treatment method comprises the following steps of: dissolving: mixing tungsten slag and 15 to 30 percent HCl solution of 50 to 65 DEG C, adding a tungsten stabilizing agent, and performing filtration after the reaction is finished to obtain acid solution; and reclaiming tungsten: Tungsten slag treatment method Semantic Scholar

(PDF) RECENT DEVELOPMENTS IN DRY SLAG

2017年9月1日  Molten slag from pyrometallurgical furnaces is tapped at high temperature, carrying a large amount of thermal energy But the common slag dumping and water granulation methods used for slag 2018年2月5日  Valorization of metallurgical slag as a material for the treatment of polluted water resources has a threefold environmental impact and enhances the sustainability of both the metallurgical industry and watertreatment processes Firstly, the amount of waste slag to be disposed of is reduced; secondly, expensive chemical reagents required for water treatment Valorization of Metallurgical Slag for the Treatment of Water 2018年8月1日  This study aims to enhance the utilization of steel slag aggregate (SSA) in pavement engineering by providing guidance on selecting efficient and rapid pretreatment methodsSteel slag in China: Treatment, recycling, and management2021年2月5日  The gas quenching dry slag granulation technique is one of the most promising slag treatment methods due to realize efficient waste heat recovery as well as high valueadded resource utilization To better understand the granulation characteristics and to achieve high waste heat recovery efficiency in the gas quenching granulation technique Experimental investigation on granulation characteristics and

Modifying hot slag and converting it into valueadded

2018年2月20日  For improved route, hot slag was converted into new valueadded materials by integrated utilization method, and the process was called hot slag modification, hot stage engineering (Engström et al, 2011) or liquid slag treatment (Kühn et al, 1997, Mudersbach et al, 2011), which is similar to metallurgy process for liquid iron Hot slag 2024年3月20日  A zeroemission collaborative treatment method for brown corundum fly ash and carbide slag: Producing silicon fertilizer while recovering gallium and potassium The resultant carbonated solution can be further regenerated via a causticization reaction and reused for the combined treatment of BCFA and carbide slag (Fig 12, Fig 13) Material A zeroemission collaborative treatment method for brown 2018年6月14日  WQ method is traditional treatment method for molten slag Enthalpy–exergy diagram for WQ method is shown in Fig 8 Slag is cooled from 1673 to 373 K and the water is heated from 293 to 353 K From Fig 8, the input enthalpy and exergy of this method is 1452 and 1193 MJ, respectively, and the output exergy of WQ is 247 MJ EXL of WQ method Thermodynamic analysis on molten slag waste heat cascade 2018年8月1日  In this paper, we reviewed steel slag treatment, recycling, and management in China Although China’s annual slag production reached more than 100 million tons, its utilization rate is only 295% The majority of Chinese enterprises have adopted traditional steelmaking methods, and the steel slag generated using these approaches is about Steel slag in China: Treatment, recycling, and management

Comparative Analysis of Steel Slag Characteristics and Treatment Process

2013年10月1日  The molten steel slag produced from the steelmaking furnace goes through different means of processing, such as hot steel slag splashing after crushing screeningmagnetic separation process 2024年6月26日  The Inbar method (INBA) is a blast furnace slag treatment technology developed by PW, Luxembourg [6] The working principle of the Inbar method is that the slag flowing out of the slag trench is granulated through the slag tank, the slag and water enter the slag tank through the slag channel, the steam is dischargedComprehensive utilisation of blast furnace slag Taylor 2024年1月12日  Steel slag carbonation is a process that involves the pretreatment of steel slag by introducing CO 2, which allows the fCaO/fMgO components to react with CO 2, forming thermodynamically stable carbonates [15], [16], [17] These carbonation products can serve as nucleation sites for the hydration of silicates, enhancing the early strength of Review Accelerated carbonation of steel slag: A review of methods 2013年7月1日  Due to the difference of cooling and treatment processes (rolling method, hot braised method, layer pouring method), basic oxygen furnace (BOF) steel slag can be mainly classified as roller steel Treatment process and utilization technology of steel slag in

Granulation performance by hybrid centrifugalair blast

2021年11月1日  Molten blast furnace (BF) slag with critically high discharged temperature of 1450–1650 °C [1] contains thermal energy of about 1770 MJ/t [2] Air cooled and water quenching methods are the main methods for slag treatment [3], which produce air cooled BF slag (ACBF) and granulated BF slag (GBF), respectively2020年2月27日  utilization Among all kinds of slag treatment methods, dry centrifugal granulation has the advantages of small particle size and high vitrification, which is a developmental slag treatment process The slag particles produced by centrifugal granulation are typical semimelt and widescreening particles This paper reviewsRESEARCH OVERVIEW ON RECOVERY OF WASTE HEAT 2019年5月23日  The disadvantages of roller method are that it has a higher requirement for the fluidity of slag, it must be liquid lean slag, the treatment rate of slag is lower, there is still a large amount of discharge of dry slag, and explosions may occur with prehensive Utilization Technology of Steel Slag2013年12月1日  Hightemperature waste heat from the iron and steel industry, as shown in Fig 1, are mainly stored in products, molten slag and waste gas [2]Molten slag, as a kind of byproduct during the steelmaking process, is exhausted in extremely high temperature and thus, it carries a great deal of highgrade heat accounting for 10% of waste energy in steel industry A review of waste heat recovery technologies towards molten slag

Cotreatment of Waste From Steelmaking Processes: Steel Slag

2020年10月15日  SS can be classified into many types according to the steps of the smelting process, including electric arc furnace slag (EAFS), basic oxygen furnace slag (BOFS), ladle furnace slag (LFS), argon oxygen decarburization slag (AODS), and continuous casting slag (CCS) The methods of steel slagbased carbon capture and storage (SS–CCS) may be

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