New analysis of slag treatment process
(PDF) New EAF Slag Characterization Methodology for
2021年3月19日 In this work, the generated slag from electric arc furnace (EAF) provided by the French steel industry was characterized by using multitude analytical techniques in order to determine theA large amount of industrial solid waste is generated in the metallurgical industry every year The lack of proper treatment of these industrial solid wastes caused serious environmental Preparation and characterization of modified steel slagbased introduce the current status quo of comprehensive utilisation of blast furnace slag from the current blast furnace slag sensible heat recovery of molten steel 1 Overview of blast furnace Comprehensive utilisation of blast furnace slag Taylor Francis 2013年10月1日 Therefore, the key technology of steel slag treatment process is to improve the stability of steel slag Steel slag is alkaline slag, with lower temperature, the viscosity Comparative Analysis of Steel Slag Characteristics and Treatment
Treatment process and utilization technology of steel slag in China
2013年7月1日 Finally, we provide new insights into the mechanisms and challenges of using accelerated carbonation as a treatment of steel slag for future research and industrial The article mainly introduces the hot splashing method, hot sealing method, and drum method for the treatment of steel slag outside the furnace, and compares and analyzes the advantages Analysis of Steel Slag Treatment Process and Comprehensive The article mainly introduces the hot splashing method, hot sealing method, and drum method for the treatment of steel slag outside the furnace, and compares and analyzes the advantages Analysis of Steel Slag Treatment Process and Comprehensive 2021年3月19日 In this work, the generated slag from electric arc furnace (EAF) provided by the French steel industry was characterized by using multitude analytical techniques in order to New EAF Slag Characterization Methodology for Strategic Metal
Steel slag in China: Treatment, recycling, and management
2018年8月1日 Steel slag after taping is treated first, but the slagtreatment process (airgranulated process, rotary cylinder process, layerpouring process, and selfdisintegrating 2016年1月1日 After a thorough comparative analysis of various treatment technologies, it can be concluded that centrifugal granulation affiliated with dry granulation is the optimum process, with smaller slag A Review of Granulation Process for Blast Furnace 2024年11月1日 Based on the above analysis, the following improvement suggestions were put forward: (1) In terms of electrode research, the use of inexpensive graphite electrodes had a good effect on steel slag treatment, and hightemperature ceramic electrodes and iron erosionresistant electrodes (ZrB 2) were gradually being exploited; (2) In terms of equipment, the existing Recent research progress on recycling metallurgical waste slag A new treatment process for titaniferous blast furnace slag at Pangang using phase separation was put forward As the first part of the present work,the behavior of separation of molten substance from solid residues was examinedAccording to thermodynamical analysis and experimental determination,the main products of reaction between titaniferous slag and Na FUNDAMENTAL STUDY OF NEW TREATMENT PROCESS FOR
Analysis of Blast Furnace Slag Quenching Dry Granulation Process
Three types of BF slag quenching dry granulation process including drum granulation,air blast granulation and centrifugal granulation Analysis of Blast Furnace Slag Quenching Dry Granulation Process @article{Yicheng2007AnalysisOB Energy–environment–economy evaluations of commercial scale systems for blast furnace slag treatment: 2018年8月1日 Steel Slag Treatment Technology Standard (GB/T 295142013) Enacted May 9, 2013; Effective February 1, 2014: Manages the control of waste water, waste gas, and noise produced in the steel slag treatment process: Standard for Pollution on the Storage and Disposal Site for General Industrial Solid Wastes (GB 185992001)Steel slag in China: Treatment, recycling, and management2014年2月19日 Drumgranulation process is a new process for molten steel slag granulation It is an improved version of the HK process, which was originally used for BF slag granulation []A kind of heat resistant alloy steel was used as material of the drum, and the cooling ability for the drum was enhanced in order to fit the high temperature of molten BOF slagCurrent Development of Slag Valorisation in China2018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 and can serve as a substitute for aggregates in civil engineering In this paper, we reviewed steel slag treatment, recycling, and management in ChinaSteel slag in China: Treatment, recycling, and management
Technical and economic evaluation of slag dry granulation
2012年5月7日 However, CSIRO has recently developed a new integrated slag treatment process based on a twostep process involving a dry granulator and a packedbed countercurrent heat exchanger [2] [3] [4]2022年11月1日 The sulfur slag is first leached in copper sulfate solution in the first stage, and the leaching slag is subjected to conventional oxygen chemical roasting–sulfuric acid leaching treatment (secondstage leaching), which can easily produce copper in the sulfur slag open circuit (Liu et al, 2021, Tang, 2012)Thermodynamic analysis and experimental verification of the 11ügranulated slag Figure 2 INBA process 4 Dry granulation process On the blast furnace slag treatment technology, for a long time, water quenching process has token the leading position However, there are many defects of waterquenching slag method, which can be roughly concluded as follow: a mass of sensible heat unrecovered, highA Review of Granulation Process for Blast Furnace Slag Semantic 2020年1月1日 The wastewater contained a significant amount of iron and manganese content that was filtered out by the slag granules Xray fluorescence and xray diffraction analysis show that the wastewater treatment process changes the chemical phase composition of slag in addition to the absorption/adsorption of various chemicals within its pore structureRecycling steel slag from municipal wastewater treatment plants into
Comparison and analysis of steel slag treatment method and
The present paper introduces and compares the main processing methods of the steel slag disposal in China Results show that the steel slag comprehensive utilization and residual heat reclamation are still in the phase of research and development and haven't been applied into industrial production broadly and therefore development of a new type steel slag disposal 2012年6月10日 However, CSIRO has recently developed a new integrated slag treatment process based on a twostep process involving a dry granulator and a packedbed countercurrent heat exchanger [2][3] [4]Economic and environmental evaluation of slag dry 2024年9月1日 The Copper smelting slag (CSS) used in this experiment comes from a copper smelter in Xinjiang, China, for the CSS stockpile site photo, which can be seen in a large amount of the CSS raw materials stockpile (Fig 1 A)The Xray diffractometer (XRD) physical analysis, to further clarify the types of minerals in the raw materials as well as a variety of metal elements A new ecofriendly approach for recovery of iron from copper 2024年1月23日 The water immersion swelling rate was significantly reduced, which enhanced the slag’s bulk stability After ageing, scanning electron microscopy revealed increased CaCO 3 production and enhanced steel slag stability The optimal processes are recommended as hydrothermal treatment at 90°C for 2 days and pressure steaming at 06 MPa for 3 hEffects of the Aging Treatment Process on the Properties of Steel Slag
(PDF) New EAF Slag Characterization Methodology for
2021年3月19日 The thermal treatment of steel slag up to 900 °C indicated that this solid is almost stable and few contained phases change their structures Xray diffraction (XRD) pattern of EAF slags2015年10月16日 Danieli C in collaboration with Politecnico di Milano, designed an innovative, patent pending, treatment plant to solve some issues associated to metals leaching (ie, Ba, V, and Cr), and high free lime concentration for carbon steel EAF slag, for the production of artificial aggregates featured by mechanical properties suitable for the building purposes The plant is EAF Slag Treatment for Inert Materials’ Production2018年8月1日 Additionally, the FTIR analysis further showed that the steel slag asphalt mastic spectra had new absorption peaks at 3200~3750 cm−1, inherently indicating the existence of chemical bonding Steel slag in China: Treatment, recycling, and management2024年1月1日 In order to better understand the oxidative mechanism of the RO phase transition to (Mn, Mg) y Fe 3y O 4 during the cooling process, a comprehensive analysis of the modified slag was carried out using XPS and EPMA Fig 10 shows the XPS spectra of Fe 2p for different cooling methods and the deconvolution of the corresponding intervalsSynergistic treatment of blast furnace slag and basic oxygen
Thermodynamic modelling of liquid steel tapping process to
2024年9月9日 Steel lollipop and slag samples were collected between tapping start and onset of ladle refining process for a medium carbon aluminium killed grade Liquid steelslag interaction, flux addition to slag, various metallic additions to steel and refractory dissolution to slag were taken into account in the model2021年6月8日 Steel slag is a byproduct discharged from the steelmaking process, which is characterized by abundant free calcium/magnesium oxide, low cementitious properties, and high contents of heavy metalsUse of steel slag as sustainable construction materials: A review of After a thorough comparative analysis of various treatment technologies, it can be concluded that centrifugal granulation affiliated with dry granulation is the optimum process, with smaller slag A Review of Granulation Process for Blast Furnace Slag2022年6月1日 At present, there are three different treatment methods for copper slag, namely beneficiation, smelting and chemical extraction We have briefly collated some previous work on metallurgical slag treatment in Table 1, listing the treatment method, the type of reagents added, and the recovery efficiency of valuable elementsBesides, some researchers focus on A new method of full resource utilization of copper slag
Present situation of BF slag treatment ResearchGate
Blast furnace (BF) slag, which is the main byproduct in the ironmaking process, contains large amounts of sensible heat To recover the heat, a new waste heatrecovery system—granulating molten 2022年6月1日 Copper slags can hardly be utilized because the fayalite in it produces silica gel during the dissolution processThis work proposes a new process on sulfuric acid treatment of copper slag (Jinchuan Group, Gansu Province, China) The results show that over 98% of recovery efficiency of Cu 2+, Co 2+, Ni 2+ and Zn 2+ was achieved through the whole process A new method of full resource utilization of copper slagLarge amount of engineering slag production and low comprehensive utilization rate have become important environmental issues that need to be resolved in the process of urban development in China, and resource utilization is the future trend The paper put forward the resource treatment and disposal mode of engineering slag to provide a feasible direction for its future workANALYSIS ON RECYCLING TREATMENT AND DISPOSAL OF ENGINEERING SLAG2021年11月3日 The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed In order to satisfy these factors, a new technology for hydrovacuum granulation of slag melts (HVG) has been developed It is shown that the main advantage of the proposed HVG process is the A new technological approach to the granulation of slag melts of
Steel slag promoted electrocoagulation process for the treatment
Moreover, a band at 875 cm–1 denotes that a Si–O bond is also present in the steel slag Following the EC treatment process, the FTIR analysis revealed the presence of other functional groups predominantly the hydroxide group (O–H) with a strong band stretch at 3,337 cm–1 and the 1,630 cm–1 band is assigned to the bent vibration of H 2024年4月15日 The vitrification process, which concentrates the valuable metal into ingots and effectively solidifies the hazardous chromium phase in the slag, is recognized as a safe treatment process and the most ideal practical technique for slag optimization treatment of stainlesssteel slag (Liu et al, 2022)An environmentally benign process for effective recovery and 2019年12月9日 The posttreatment process includes removing dissolved sulphurous Slag processing (eg granulation) coupled with heat recovery should be viewed as a new paradigm with new challenges Wang K (2013) CO 2 gasification rate analysis of datong coal using slag granules as heat carrier for heat recovery from blast furnace slag by Granulation and Heat Recovery from Metallurgical Slags2016年1月1日 After a thorough comparative analysis of various treatment technologies, it can be concluded that centrifugal granulation affiliated with dry granulation is the optimum process, with smaller slag A Review of Granulation Process for Blast Furnace
Recent research progress on recycling metallurgical waste slag
2024年11月1日 Based on the above analysis, the following improvement suggestions were put forward: (1) In terms of electrode research, the use of inexpensive graphite electrodes had a good effect on steel slag treatment, and hightemperature ceramic electrodes and iron erosionresistant electrodes (ZrB 2) were gradually being exploited; (2) In terms of equipment, the existing A new treatment process for titaniferous blast furnace slag at Pangang using phase separation was put forward As the first part of the present work,the behavior of separation of molten substance from solid residues was examinedAccording to thermodynamical analysis and experimental determination,the main products of reaction between titaniferous slag and Na FUNDAMENTAL STUDY OF NEW TREATMENT PROCESS FOR Three types of BF slag quenching dry granulation process including drum granulation,air blast granulation and centrifugal granulation Analysis of Blast Furnace Slag Quenching Dry Granulation Process @article{Yicheng2007AnalysisOB Energy–environment–economy evaluations of commercial scale systems for blast furnace slag treatment: Analysis of Blast Furnace Slag Quenching Dry Granulation Process2018年8月1日 Steel Slag Treatment Technology Standard (GB/T 295142013) Enacted May 9, 2013; Effective February 1, 2014: Manages the control of waste water, waste gas, and noise produced in the steel slag treatment process: Standard for Pollution on the Storage and Disposal Site for General Industrial Solid Wastes (GB 185992001)Steel slag in China: Treatment, recycling, and management
Current Development of Slag Valorisation in China
2014年2月19日 Drumgranulation process is a new process for molten steel slag granulation It is an improved version of the HK process, which was originally used for BF slag granulation []A kind of heat resistant alloy steel was used as material of the drum, and the cooling ability for the drum was enhanced in order to fit the high temperature of molten BOF slag2018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 and can serve as a substitute for aggregates in civil engineering In this paper, we reviewed steel slag treatment, recycling, and management in ChinaSteel slag in China: Treatment, recycling, and management2012年5月7日 However, CSIRO has recently developed a new integrated slag treatment process based on a twostep process involving a dry granulator and a packedbed countercurrent heat exchanger [2] [3] [4]Technical and economic evaluation of slag dry granulation2022年11月1日 The sulfur slag is first leached in copper sulfate solution in the first stage, and the leaching slag is subjected to conventional oxygen chemical roasting–sulfuric acid leaching treatment (secondstage leaching), which can easily produce copper in the sulfur slag open circuit (Liu et al, 2021, Tang, 2012)Thermodynamic analysis and experimental verification of the
A Review of Granulation Process for Blast Furnace Slag Semantic
11ügranulated slag Figure 2 INBA process 4 Dry granulation process On the blast furnace slag treatment technology, for a long time, water quenching process has token the leading position However, there are many defects of waterquenching slag method, which can be roughly concluded as follow: a mass of sensible heat unrecovered, high