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physical properties of the refining slag and thereby improv-ing the quality of the liquid steel. 2. Experimental 2.1. Raw Materials and Sample Preparation Figure 1 provides the schematic diagram of composi-tional changes with respect to the secondary refining, and the compositions of experimental slags as shown in Table
Get Price2017-3-28u2002·u2002Synthetic slag practice during secondary steelmaking maximizes the efficiency of the steel refining process by (i) improving steel quality, (ii) improving productivity, (iii) reducing costs, and (iv) protecting the environment (since it removes the need of addition of fluorspar also called fluorite). The other objectives of use of the synthetic ...
Get Price1 day agou2002·u2002Slag. Slag is the (lighter) dross solution that floats on top of the (heavier) molten steel that needs to be separated during refining. Slag mostly originates from: slag forming additives (lime and fluxing agents) byproducts of steel deoxidation products (Al 2 O 3, MnO, SiO 2) remaining processes of ore gangue/scrap (FeO, MnO, P 2 O 5, Cr 2 O 5 ...
Get PriceThe first stage of the scrap-based steel industry production generates EAF slag (EAFS) and a second stage is performed to refine the molten steel. The slag produced in the LF (LFS) is the result from steel refining and, therefore, it is generally a heavy metal carrier such as chrome, lead or zinc (CEDEX – Ministerio de Fomento, 2018).
Get Price2019-12-14u2002·u2002The cleanliness level in the slabs of micro-alloy structure steel produced in the BOF–CAS–CC process was studied by optimizing the compositions of molten steel and refining slag in trial heats. When the slag composition was controlled in the range of CaO = 45–53 wt%, Al2O3 = 28–32 wt%, SiO2 = 6–11 wt% and MgO = 5–10 wt% in CAS, the steel composition should be in the range of …
Get Price2020-9-17u2002·u2002SECONDARY STEEL REFINING. Steelmaking is the process of producing steel from iron ore and/or scrap. In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur and excess carbon (most important impurity) are removed . Alloying elements such as manganese, nickel, chromium, carbon and vanadium are added to produce different grades of ...
Get Price2021-11-3u2002·u2002MG-Si refining slag obtained by this process accounted for 10% of global silicon production, with more than 15% MG-Si trapped in the slag (Wu et al., 2014). Since the annual global MG-Si production exceeds 3 million tons ( Huang et al., 2017 ), this means that approximately 400,000 tons of MG-Si refining slag is obtained as a by-product ...
Get Price2009-12-22u2002·u2002A secondary refining process whereby molten steel is heated in ladles using an electric arc. The LF process is effective in reducing sulfur and controlling non-metallic inclusions in molten steel. *3 RH (Ruhrstahl-Heraeus) The RH process is composed of a vacuum vessel and two tubes (suction tubes) immersed in molten steel in a ladle.
Get Price2020-2-25u2002·u2002The quality control research of IF (interstitial-free) steel production process showed that reducing the oxidation of ladle top slag can significantly reduce the formation of inclusions in the steel and improve the cleanliness of molten steel [1,2,3].For the IF steel produced by Nippon Steel, the total iron (TFe) content in the slag was decreased to less than 4 wt.% by adding modifier to the slag.
Get PriceThe subject matter of the invention is a method of producing a slag-forming compound for secondary steel refining in a ladle or a ladle furnace. According to the invention, the method of producing a steel-forming compound for secondary steel refining in a ladle or a ladle furnace is as follows: the fragmented slag obtained in the reduction process of steelmaking converter slag with the ...
Get PriceThe first stage of the scrap-based steel industry production generates EAF slag (EAFS) and a second stage is performed to refine the molten steel. The slag produced in the LF (LFS) is the result from steel refining and, therefore, it is generally a heavy metal carrier such as chrome, lead or zinc (CEDEX – Ministerio de Fomento, 2018).
Get PriceIncreasing demands for ultrahigh-strength steels in commercial as well as military applications have raised interest in finding alternatives to the high-cost high-alloyed steel and super-alloys currently used, e.g. the use of economic low-alloy compositions processed via low-cost air induction melting and electroslag refining (ESR). In this work the yield of alloying elements and the removal ...
Get Price2012-4-4u2002·u2002The ironmaking process in the blast furnace is a heat and mass transfer process, and the furnace can be divided into different zones according to physical and chemical state of the feed and temperature. Figure 1.1.5 illustrates various zones of the blast furnace and feed distribution and materials flow [13].Corresponding to each temperature interval, typical reactions will take place.
Get Price2021-9-1u2002·u2002Steel slag, as industrial solid waste, is difficult to recycle owing to its complex components and poor mechanical properties. However, steel slag can be modified by adding Al 2 O 3 –SiO 2 through high temperature sintering, which would improve the mechanical properties and expand the scope of its application. The phase changing, morphology ...
Get Price2 days agou2002·u2002International Journal of Minerals, Metallurgy and Materials (IJMMM, ISSN 1674-4799, CN 11-5787/TF, monthly, started in 1994, formerly known as Journal of University of Science and Technology Beijing) is an international journal devoted to publishing original research articles (and occasional invited reviews) on all aspects of minerals processing, physical metallurgy, process metallurgy, and ...
Get Price2019-12-25u2002·u2002Baosteel Technical Research 2011-02. Status and development of mineral wool made from molten blast furnace slag. XIAO Yongli, LIU Yin and LI Yongqian. Ironmaking,Resources & Environment Division, Research Institute, Baosteel Iron & Steel Co., Ltd., Shanghai 201900, China. Abstract: This study describes the characteristics of mineral wool and ...
Get Price2018-10-4u2002·u2002There is an opinion [6,7,8,9,10,11,12,13,14,15,16] that depending on the composition and basicity of slag acting on refractory, it is possible to select such a periclase-chromite refractory composition that provides to a significant extent reliable operation of a metallurgical unit, and also high quality for the treated steel.
Get PriceThe AESSEAL ® Python is an advanced air cooled heat exchanger for cooling mechanical seal barrier buffer flush fluids.. Air cooling is achieved through natural convection without the need for cooling water. The unit consists of a tube formed into a coil, terminated with inlet and outlet manifolds.
Get Pricephysical properties of the refining slag and thereby improv-ing the quality of the liquid steel. 2. Experimental 2.1. Raw Materials and Sample Preparation Figure 1 provides the schematic diagram of composi-tional changes with respect to the secondary refining, and the compositions of experimental slags as shown in Table
Get Price2017-3-28u2002·u2002Synthetic slag practice during secondary steelmaking maximizes the efficiency of the steel refining process by (i) improving steel quality, (ii) improving productivity, (iii) reducing costs, and (iv) protecting the environment (since it removes the need of addition of fluorspar also called fluorite). The other objectives of use of the synthetic ...
Get Price1 day agou2002·u2002Slag. Slag is the (lighter) dross solution that floats on top of the (heavier) molten steel that needs to be separated during refining. Slag mostly originates from: slag forming additives (lime and fluxing agents) byproducts of steel deoxidation products (Al 2 O 3, MnO, SiO 2) remaining processes of ore gangue/scrap (FeO, MnO, P 2 O 5, Cr 2 O 5 ...
Get PriceThe first stage of the scrap-based steel industry production generates EAF slag (EAFS) and a second stage is performed to refine the molten steel. The slag produced in the LF (LFS) is the result from steel refining and, therefore, it is generally a heavy metal carrier such as chrome, lead or zinc (CEDEX – Ministerio de Fomento, 2018).
Get Price2019-12-14u2002·u2002The cleanliness level in the slabs of micro-alloy structure steel produced in the BOF–CAS–CC process was studied by optimizing the compositions of molten steel and refining slag in trial heats. When the slag composition was controlled in the range of CaO = 45–53 wt%, Al2O3 = 28–32 wt%, SiO2 = 6–11 wt% and MgO = 5–10 wt% in CAS, the steel composition should be in the …
Get Price2020-9-17u2002·u2002SECONDARY STEEL REFINING. Steelmaking is the process of producing steel from iron ore and/or scrap. In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur and excess carbon (most important impurity) are removed . Alloying elements such as manganese, nickel, chromium, carbon and vanadium are added to produce different grades of ...
Get Price2021-11-3u2002·u2002MG-Si refining slag obtained by this process accounted for 10% of global silicon production, with more than 15% MG-Si trapped in the slag (Wu et al., 2014). Since the annual global MG-Si production exceeds 3 million tons ( Huang et al., 2017 ), this means that approximately 400,000 tons of MG-Si refining slag is obtained as a by-product ...
Get Price2009-12-22u2002·u2002A secondary refining process whereby molten steel is heated in ladles using an electric arc. The LF process is effective in reducing sulfur and controlling non-metallic inclusions in molten steel. *3 RH (Ruhrstahl-Heraeus) The RH process is composed of a vacuum vessel and two tubes (suction tubes) immersed in molten steel in a ladle.
Get Price2020-2-25u2002·u2002The quality control research of IF (interstitial-free) steel production process showed that reducing the oxidation of ladle top slag can significantly reduce the formation of inclusions in the steel and improve the cleanliness of molten steel [1,2,3].For the IF steel produced by Nippon Steel, the total iron (TFe) content in the slag was decreased to less than 4 wt.% by adding …
Get Price2021-11-14u2002·u2002Steel slag is a by-product in the metallurgical process [1] which can be divided into blast furnace slag, converter slag and electric furnace slag. There are more than 300 million tons of …
Get Pricephysical properties of the refining slag and thereby improv-ing the quality of the liquid steel. 2. Experimental 2.1. Raw Materials and Sample Preparation Figure 1 provides the schematic diagram of composi-tional changes with respect to the secondary refining, and the compositions of experimental slags as shown in Table
Get Price2017-3-28u2002·u2002Synthetic slag practice during secondary steelmaking maximizes the efficiency of the steel refining process by (i) improving steel quality, (ii) improving productivity, (iii) reducing costs, and (iv) protecting the environment (since it removes the need of addition of fluorspar also called fluorite). The other objectives of use of the synthetic ...
Get Price1 day agou2002·u2002Slag. Slag is the (lighter) dross solution that floats on top of the (heavier) molten steel that needs to be separated during refining. Slag mostly originates from: slag forming additives (lime and fluxing agents) byproducts of steel deoxidation products (Al 2 O 3, MnO, SiO 2) remaining processes of ore gangue/scrap (FeO, MnO, P 2 O 5, Cr 2 O 5 ...
Get PriceThe first stage of the scrap-based steel industry production generates EAF slag (EAFS) and a second stage is performed to refine the molten steel. The slag produced in the LF (LFS) is the result from steel refining and, therefore, it is generally a heavy metal carrier such as chrome, lead or zinc (CEDEX – Ministerio de Fomento, 2018).
Get Price2019-12-14u2002·u2002The cleanliness level in the slabs of micro-alloy structure steel produced in the BOF–CAS–CC process was studied by optimizing the compositions of molten steel and refining slag in trial heats. When the slag composition was controlled in the range of CaO = 45–53 wt%, Al2O3 = 28–32 wt%, SiO2 = 6–11 wt% and MgO = 5–10 wt% in CAS, the steel composition should be in the range of …
Get Price2020-9-17u2002·u2002SECONDARY STEEL REFINING. Steelmaking is the process of producing steel from iron ore and/or scrap. In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur and excess carbon (most important impurity) are removed . Alloying elements such as manganese, nickel, chromium, carbon and vanadium are added to produce different grades of ...
Get Price2021-11-3u2002·u2002MG-Si refining slag obtained by this process accounted for 10% of global silicon production, with more than 15% MG-Si trapped in the slag (Wu et al., 2014). Since the annual global MG-Si production exceeds 3 million tons ( Huang et al., 2017 ), this means that approximately 400,000 tons of MG-Si refining slag is obtained as a by-product ...
Get Price2009-12-22u2002·u2002A secondary refining process whereby molten steel is heated in ladles using an electric arc. The LF process is effective in reducing sulfur and controlling non-metallic inclusions in molten steel. *3 RH (Ruhrstahl-Heraeus) The RH process is composed of a vacuum vessel and two tubes (suction tubes) immersed in molten steel in a ladle.
Get Price2020-2-25u2002·u2002The quality control research of IF (interstitial-free) steel production process showed that reducing the oxidation of ladle top slag can significantly reduce the formation of inclusions in the steel and improve the cleanliness of molten steel [1,2,3].For the IF steel produced by Nippon Steel, the total iron (TFe) content in the slag was decreased to less than 4 wt.% by adding modifier to the slag.
Get Price2021-11-14u2002·u2002Steel slag is a by-product in the metallurgical process [1] which can be divided into blast furnace slag, converter slag and electric furnace slag. There are more than 300 million tons of steel ...
Get Pricephysical properties of the refining slag and thereby improv-ing the quality of the liquid steel. 2. Experimental 2.1. Raw Materials and Sample Preparation Figure 1 provides the schematic diagram of composi-tional changes with respect to the secondary refining, and the compositions of experimental slags as shown in Table
Get Price2017-3-28u2002·u2002Synthetic slag practice during secondary steelmaking maximizes the efficiency of the steel refining process by (i) improving steel quality, (ii) improving productivity, (iii) reducing costs, and (iv) protecting the environment (since it removes the need of addition of fluorspar also called fluorite). The other objectives of use of the synthetic ...
Get Price1 day agou2002·u2002Slag. Slag is the (lighter) dross solution that floats on top of the (heavier) molten steel that needs to be separated during refining. Slag mostly originates from: slag forming additives (lime and fluxing agents) byproducts of steel deoxidation products (Al 2 O 3, MnO, SiO 2) remaining processes of ore gangue/scrap (FeO, MnO, P 2 O 5, Cr 2 O 5 ...
Get PriceThe first stage of the scrap-based steel industry production generates EAF slag (EAFS) and a second stage is performed to refine the molten steel. The slag produced in the LF (LFS) is the result from steel refining and, therefore, it is generally a heavy metal carrier such as chrome, lead or zinc (CEDEX – Ministerio de Fomento, 2018).
Get Price2019-12-14u2002·u2002The cleanliness level in the slabs of micro-alloy structure steel produced in the BOF–CAS–CC process was studied by optimizing the compositions of molten steel and refining slag in trial heats. When the slag composition was controlled in the range of CaO = 45–53 wt%, Al2O3 = 28–32 wt%, SiO2 = 6–11 wt% and MgO = 5–10 wt% in CAS, the steel composition should be in the …
Get Price2020-9-17u2002·u2002SECONDARY STEEL REFINING. Steelmaking is the process of producing steel from iron ore and/or scrap. In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur and excess carbon (most important impurity) are removed . Alloying elements such as manganese, nickel, chromium, carbon and vanadium are added to produce different grades of ...
Get Price2021-11-3u2002·u2002MG-Si refining slag obtained by this process accounted for 10% of global silicon production, with more than 15% MG-Si trapped in the slag (Wu et al., 2014). Since the annual global MG-Si production exceeds 3 million tons ( Huang et al., 2017 ), this means that approximately 400,000 tons of MG-Si refining slag is obtained as a by-product ...
Get Price2009-12-22u2002·u2002A secondary refining process whereby molten steel is heated in ladles using an electric arc. The LF process is effective in reducing sulfur and controlling non-metallic inclusions in molten steel. *3 RH (Ruhrstahl-Heraeus) The RH process is composed of a vacuum vessel and two tubes (suction tubes) immersed in molten steel in a ladle.
Get Price2020-2-25u2002·u2002The quality control research of IF (interstitial-free) steel production process showed that reducing the oxidation of ladle top slag can significantly reduce the formation of inclusions in the steel and improve the cleanliness of molten steel [1,2,3].For the IF steel produced by Nippon Steel, the total iron (TFe) content in the slag was decreased to less than 4 wt.% by adding …
Get Price2021-11-14u2002·u2002Steel slag is a by-product in the metallurgical process [1] which can be divided into blast furnace slag, converter slag and electric furnace slag. There are more than 300 million tons of …
Get Pricephysical properties of the refining slag and thereby improv-ing the quality of the liquid steel. 2. Experimental 2.1. Raw Materials and Sample Preparation Figure 1 provides the schematic diagram of composi-tional changes with respect to the secondary refining, and the compositions of experimental slags as shown in Table
Get Price2017-3-28u2002·u2002Synthetic slag practice during secondary steelmaking maximizes the efficiency of the steel refining process by (i) improving steel quality, (ii) improving productivity, (iii) reducing costs, and (iv) protecting the environment (since it removes the need of addition of fluorspar also called fluorite). The other objectives of use of the synthetic ...
Get Price1 day agou2002·u2002Slag. Slag is the (lighter) dross solution that floats on top of the (heavier) molten steel that needs to be separated during refining. Slag mostly originates from: slag forming additives (lime and fluxing agents) byproducts of steel deoxidation products (Al 2 O 3, MnO, SiO 2) remaining processes of ore gangue/scrap (FeO, MnO, P 2 O 5, Cr 2 O 5 ...
Get PriceThe first stage of the scrap-based steel industry production generates EAF slag (EAFS) and a second stage is performed to refine the molten steel. The slag produced in the LF (LFS) is the result from steel refining and, therefore, it is generally a heavy metal carrier such as chrome, lead or zinc (CEDEX – Ministerio de Fomento, 2018).
Get Price2019-12-14u2002·u2002The cleanliness level in the slabs of micro-alloy structure steel produced in the BOF–CAS–CC process was studied by optimizing the compositions of molten steel and refining slag in trial heats. When the slag composition was controlled in the range of CaO = 45–53 wt%, Al2O3 = 28–32 wt%, SiO2 = 6–11 wt% and MgO = 5–10 wt% in CAS, the steel composition should be in the range of …
Get Price2020-9-17u2002·u2002SECONDARY STEEL REFINING. Steelmaking is the process of producing steel from iron ore and/or scrap. In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur and excess carbon (most important impurity) are removed . Alloying elements such as manganese, nickel, chromium, carbon and vanadium are added to produce different grades of ...
Get Price2021-11-3u2002·u2002MG-Si refining slag obtained by this process accounted for 10% of global silicon production, with more than 15% MG-Si trapped in the slag (Wu et al., 2014). Since the annual global MG-Si production exceeds 3 million tons ( Huang et al., 2017 ), this means that approximately 400,000 tons of MG-Si refining slag is obtained as a by-product ...
Get Price2009-12-22u2002·u2002A secondary refining process whereby molten steel is heated in ladles using an electric arc. The LF process is effective in reducing sulfur and controlling non-metallic inclusions in molten steel. *3 RH (Ruhrstahl-Heraeus) The RH process is composed of a vacuum vessel and two tubes (suction tubes) immersed in molten steel in a ladle.
Get Price2020-2-25u2002·u2002The quality control research of IF (interstitial-free) steel production process showed that reducing the oxidation of ladle top slag can significantly reduce the formation of inclusions in the steel and improve the cleanliness of molten steel [1,2,3].For the IF steel produced by Nippon Steel, the total iron (TFe) content in the slag was decreased to less than 4 wt.% by adding modifier to the slag.
Get Price2021-11-14u2002·u2002Steel slag is a by-product in the metallurgical process [1] which can be divided into blast furnace slag, converter slag and electric furnace slag. There are more than 300 million tons of steel ...
Get Price
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