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Phosphorus slag processing into powder process Phosphorus slag processing into powder process Phosphorus slag processing into powder process
Phosphorus Slag an overview ScienceDirect Topics
Phosphorus slag is formed during the elemental phosphorus production process When phosphate rock, phosphorus concentrate, and fluxes are smelted in an electric arc furnace under temperatures of 1400–1500 °C (2552–2732 °FCarbon dioxide sequestration using steel slag—modeling and experimental investigation SSteel Slag2023年5月15日 To efficiently recover phosphorus from industrial solid wastes, the collaborative processing of Pbearing steelmaking slag and phosphate tailings was proposed Steelmaking Recovery of phosphorus from steelmaking slag and phosphate 2022年5月1日 This review aims to promote the resource efficiency of phosphorus recycling from steelmaking slag for the sustainable phosphorus supply by examining the recent progress on Sustainable phosphorus supply by phosphorus recovery from
Processing Technogenic Raw MaterialsPhosphorus Slags with the
The paper provides a flow sheet of the phosphorus slag processing to produce precipitated silica (white soot) The process conditions for opening phosphorus slag at the I stage ofThe phosphorus partition (LP) and phosphate capacity CPO43 were measured for slags in the CaO–SiO2– MgO–FetO–(MnO–Al2O3–TiO2–P2O5) system over temperatures representative Phosphorus Partition and Phosphate Capacity of Basic Oxygen 2016年10月1日 The present research is devoted to the processing of slag generating during the yellow phosphorus production In this paper are presented studies on leaching of phosphorus Processing of Phosphorus Slag with Recovery of Rare Earth Metals 2024年3月9日 The phosphorus in converter slag can be enriched into 2CaOSiO 2 –3CaOP 2 O 5 (C 2 S–C 3 P) solid solution by adding modifiers to achieve the purpose of recovering Leaching behavior and microstructure of phosphorus in converter
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Effect of Slag Composition on the Dissolution of Phosphorus from
Steelmaking slag, especially dephosphorization slag, is generally within the CaO–SiO 2–Fe tO–P 2O 5 system, and after solidification, it mainly consists of calcium ferrite, wustite, and 2022年10月24日 In order to deeply understand the structural and cementitious characteristics of phosphorous slag, comprehensive characterizations, including Xray fluorescence Structural Characterization of Phosphorous Slag Regarding 2022年2月4日 To realize the gasification dephosphorization process in the converter slag splashing stage for avoiding the P enrichment, the dephosphorized slag can be left for Phosphorus Migration Behavior in the Process of Converter Slag Leaching process of phosphorus and iron from steelmaking slag into malic acid solution Ningning Lv1,2 • Chang Su1,2 • Hui Kong1,2 • Haichuan Wang1,2 • Yuanchi Dong1,2 Received: 21 February 2021/Revised: 30 April 2021/Accepted: 5 May 2021/Published online: 13 September 2021 China Iron and Steel Research Institute Group 2021 AbstractLeaching process of phosphorus and iron from steelmaking slag into
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Phosphorus Migration Behavior in the Process of Converter Slag
2022年2月4日 China is the world’s largest steel producer, and the steel industry is also a high consumption and high emission industry According to the National Bureau of Statistics, China’s steel slag output in 2020 is about 160 million tons, and the utilization rate of steel slag resources is less than 30%, causing environmental pollution and resource wastePhosphoruscontaining silane modified steel slag waste to reduce fire hazards of rigid polyurethane foams Gang Tang a,b, ⇑ , Xinliang Liu a , Yadong Yang a , Depeng Chen a , Hao Zhang a , Lin Phosphoruscontaining silane modified steel slag waste to 2022年10月17日 PS is a byproduct of yellow phosphorus industry where the annual production is >08, 30 and 80 million tonnes in India, USA and China, respectively [6], [7]For every tonne of yellow phosphorus, around 8 to 9 tonnes of PS will be produced [8], [9] and consequently the piledup PS will occupy a large area of land, causing environmental pollutionReview Phosphorus slag in supplementary cementitious and alkali 2024年2月28日 11 Raw Materials The raw materials used for the test included P•MH 425 mediumheat Portland cement meeting the requirements of Chinese standard GB/T 2002017 [], granulated blast furnace phosphorus slag produced as a byproduct of the yellow phosphorus industry in Guizhou, China, phosphate slag powder with a specific surface area of 200, 340, SelfSimilar Fractal Characteristics of Phosphorus Slag Powder
Phosphorus Migration Behavior in the Process of Converter Slag
602 C Li et al Fig 3 Microscopic morphology and phase diagram of the final slag sample Table 5 Composition of each phase element in the final slag (wt%) Area Element C O Mg Si P Ca Fe Phase 1 Mass% 1970 3380 145 381 043 2882 1022 Forsterite Atom% 3553 4159 123 257 026 1860 3年10月11日 At the refining temperature of steelmaking slag, phosphorus is distributed between the liquid phase and solid solution phase of 2CaOSiO23CaOP2O5(PDF) Extraction of Phosphorus and Recovery of Phosphate 2019年7月1日 To recover a highquality phosphate and promote the industrial application of this method, the selective leaching of P and chemical precipitation was optimized in this study, and a method of SiO 2 Separation and recovery of phosphorus from steelmaking slag via 2 Material and Characterization Methods The phosphorous slag used in this experiment comes from Guizhou Kailin Co Ltd, Guiyang, China The granulated phosphorous slag was milled into powder with particle size d(05) of 1808 μm 5 g phosphorous slag powder was taken for chemical composition analysis, which was measured by Shimadzu XRF1800 series Xray Structural Characterization of Phosphorous Slag Regarding
Acid Leaching for Phosphorus Separation from the Coprocessing
2024年2月20日 In the present work, the effect of dephosphorization slag basicity on the dephosphorization of hot metal has been studied in the lower temperature range of 1370 °C to 1420 °C and the lower 2023年5月15日 Therefore, the collaborative processing of BOF slag and phosphate tailings can make the P 2 O 5 enrich in the 2CaOSiO 2 phase and MgO combine with Fe 2 O 3, which is beneficial for the following P recovery It is possible to separate P 2 O 5 from the mixed slag of BOF slag and phosphate tailings via selective leachingRecovery of phosphorus from steelmaking slag and phosphate 2022年7月28日 The effects of the variables on leaching percentage of phosphorus were investigated Experimental results showed that, the leaching percentages of phosphorus increase as the concentration of nitric acid increases Increasing the liquid/solid ratio and decreasing the slag particle size increased the leaching percentages of the phosphorusKinetics Investigation of Phosphorus Leaching from Steelmaking Slag2022年2月4日 Three types of dephosphorization steel slags were reduced using carbonsaturated iron bath to extract iron and phosphorus simultaneously During the process of reduction, slag composition Phosphorus Migration Behavior in the Process of Converter Slag
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Optimizing the slag system for phosphorus removal in a DRI
1 Introduction Carbon dioxide, a word that is heard every day News channels, radio programs, blogs, podcasts and UNreports all talking, informing, trying to convey that this is the stuff of nightmares2023年5月1日 Phosphorus (P) is one of the desirable nutrient elements for the growing of crops and is a nonrenewable resource The overexploitation of highgrade phosphate rocks makes finding alternative P Recovery of phosphorus from steelmaking slag and phosphate required amounts, followed by melting the mixed powder in a Pt crucible for ~20 minutes at 1 600°C using a muffle furnace The liquid slag was then quenched by pouring on to a thick steel plate The slag was remelted and again quenched then crushed to a fine powder using a ring grinder The slagPhosphorus Partition and Phosphate Capacity of Basic Oxygen 2023年10月15日 Steel slag is an industrial byproduct 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 1013 billion tons of steel were manufactured in China in which approximately 0162 billion tons of steel slag was producedInfluence of steel slag powder on the characteristics of
Processing Technogenic Raw MaterialsPhosphorus Slags with
The paper provides a flow sheet of the phosphorus slag processing to produce precipitated silica (white soot) The process conditions for opening phosphorus slag at the I stage of leaching have been selected: the nitric acid concentration is 35 mol/dm3; the ratio S:L = 1:35; the temperature is 60 oС; and the process duration is 1 hour The parameters of the white soot production II 2019年11月1日 Steelmaking slag, a significant byproduct of steelmaking, contains a certain amount of phosphorus, which makes it a potential phosphate sourceTo achieve its high valueadded utilization, the Pconcentrated C 2 S–C 3 P solid solution in slag is commonly separated In this study, we adopted a selective leaching–chemical precipitation process to recover P from Separation and recovery of phosphorus from steelmaking slag via The paper provides a flow sheet of the phosphorus slag processing to produce precipitated silica (white soot) The process conditions for opening phosphorus slag at the I stage of leaching have Flow Sheet of the Phosphorus Slag Processing with 1 Introduction Carbon dioxide, a word that is heard every day News channels, radio programs, blogs, podcasts and UNreports all talking, informing, trying to convey that this is the stuff of nightmaresOptimizing the slag system for phosphorus removal in a DRI
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Influence of Phosphorus Slag on Physical and Mechanical
2020年5月22日 1 Introduction China is the second largest phosphorus reserverich country and has become one of the most intensively engaged in phosphorusprocessing, which has eventually increased the risk to ecological deterioration from air storage of phosphogypsum and phosphorus slag []Phosphogypsum has been made into belite–ferroaluminate cement products [], non 2017年11月1日 The leading countries for yellow phosphorus producers are the USA, the Netherlands, China and Kazakhstan According to Infomine Research Group (2016), at present the world production of phosphorus is ∼ 20 million tons per year During the processing of Karatau phosphate rocks (Kazakhstan) at Kazphosphate LLP (New Dzhambul Phosphorus Plant Recovery of rare earth metals as critical raw materials from phosphorus main components of phosphorus slag are SiO 2 and CaO, and its total content is generally greater than 80% The vitreous silicate content of phosphate slag is greater than 85%, indicating that phosphate slag possesses a high potential hydration activity [16] Phosphorus slag also has a retarding effect on the earlyPreparation of High Activity Admixture from Steel Slag, Phosphate Slag 2016年10月1日 [1] Sun H, Peng YZ, Tang JF and Li N 2013 Preparation of reactive powder concrete having high volume of phosphorous slag powder and Silica Fume Advanced Materials Research 738 157160 Crossref; Google Scholar [2] Sukhov VA 1979 Construction materials made of phosphorus production slags of Kazakhstan Comprehensive use of mineral raw Processing of Phosphorus Slag with Recovery of Rare Earth
Experimental investigation on centrifugal granulation of molten
2023年9月1日 Since the 1970s, research on dry granulation of blast furnace slag with waste heat recovery has been carried out to improve energy efficiency and overcome the environmental problems caused by traditional slag treatment methods in the iron and steel industry (Duan et al, 2022a, Duan et al, 2022b)Dry granulation with waste heat recovery technologies includes the 2024年3月9日 Converter slag is a byproduct of the steelmaking process and contains a large amount of Ca, Fe, P and other elements If the phosphorus in the converter slag can be effectively extracted, the resulting phosphorus can be used as a phosphate fertilizer Phosphorus in converter slag is mainly enriched in 2CaOSiO2–3CaOP2O5 (C2S–C3P) solid solution and is Leaching behavior and microstructure of phosphorus in converter slag2011年10月27日 The key to phosphorus removal is a limerich slag, achieved by addition of a calculated weight of lime to each heat in the furnace This is an area of technical tradeoffs: coarse lime takes longer to dissolve into the slag and begin the removal of phosphorus but with finer lime there would be excessive dust lossesBasics of slag production Article on the slag industry from Global Slag2020年5月22日 Influences of phosphorus slag from 10% to 50% (by mass) on the setting time and the water requirement of the normal consistency of cement pastes, flowability, resistance to carbonation, and the compressive strength of cement mortars were investigated The physical activation by improving fineness and the chemical activation by adding the chemical activator Influence of Phosphorus Slag on Physical and Mechanical MDPI
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Leaching process of phosphorus and iron from steelmaking slag into
Leaching process of phosphorus and iron from steelmaking slag into malic acid solution Ningning Lv1,2 • Chang Su1,2 • Hui Kong1,2 • Haichuan Wang1,2 • Yuanchi Dong1,2 Received: 21 February 2021/Revised: 30 April 2021/Accepted: 5 May 2021/Published online: 13 September 2021 China Iron and Steel Research Institute Group 2021 Abstract2022年2月4日 China is the world’s largest steel producer, and the steel industry is also a high consumption and high emission industry According to the National Bureau of Statistics, China’s steel slag output in 2020 is about 160 million tons, and the utilization rate of steel slag resources is less than 30%, causing environmental pollution and resource wastePhosphorus Migration Behavior in the Process of Converter Slag Phosphoruscontaining silane modified steel slag waste to reduce fire hazards of rigid polyurethane foams Gang Tang a,b, ⇑ , Xinliang Liu a , Yadong Yang a , Depeng Chen a , Hao Zhang a , Lin Phosphoruscontaining silane modified steel slag waste to 2022年10月17日 PS is a byproduct of yellow phosphorus industry where the annual production is >08, 30 and 80 million tonnes in India, USA and China, respectively [6], [7]For every tonne of yellow phosphorus, around 8 to 9 tonnes of PS will be produced [8], [9] and consequently the piledup PS will occupy a large area of land, causing environmental pollutionReview Phosphorus slag in supplementary cementitious and alkali
SelfSimilar Fractal Characteristics of Phosphorus Slag Powder
2024年2月28日 11 Raw Materials The raw materials used for the test included P•MH 425 mediumheat Portland cement meeting the requirements of Chinese standard GB/T 2002017 [], granulated blast furnace phosphorus slag produced as a byproduct of the yellow phosphorus industry in Guizhou, China, phosphate slag powder with a specific surface area of 200, 340, 602 C Li et al Fig 3 Microscopic morphology and phase diagram of the final slag sample Table 5 Composition of each phase element in the final slag (wt%) Area Element C O Mg Si P Ca Fe Phase 1 Mass% 1970 3380 145 381 043 2882 1022 Forsterite Atom% 3553 4159 123 257 026 1860 327Phosphorus Migration Behavior in the Process of Converter Slag 2019年10月11日 At the refining temperature of steelmaking slag, phosphorus is distributed between the liquid phase and solid solution phase of 2CaOSiO23CaOP2O5(PDF) Extraction of Phosphorus and Recovery of Phosphate 2019年7月1日 To recover a highquality phosphate and promote the industrial application of this method, the selective leaching of P and chemical precipitation was optimized in this study, and a method of SiO 2 Separation and recovery of phosphorus from steelmaking slag via
Structural Characterization of Phosphorous Slag Regarding
2 Material and Characterization Methods The phosphorous slag used in this experiment comes from Guizhou Kailin Co Ltd, Guiyang, China The granulated phosphorous slag was milled into powder with particle size d(05) of 1808 μm 5 g phosphorous slag powder was taken for chemical composition analysis, which was measured by Shimadzu XRF1800 series Xray