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What are the details of a magnesia carbon brick used for ...

 · 5.) Can purify molten steel. Refractory Magnesia calcium brick, mainly made from magnesium sand and synthesized magnesium dolomite sand, is a kind of alkaline refractories and contains CaO. The melting points of MgO and CaO in synthesized sand are both high, it's 2825℃and 2620℃, their eutectic point is as high as 2370℃.

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dolomite specifications as a flux in steel making

Welcome to the Web Page of Dr. P. S. Ranawat. Dolomite is used in iron and steel industry as refractory raw materials and a flux. The BIS (IS: 10346–1982) has prescribed following specifications of dolomite for use in the manufacture of refractory bricks, felting materials and …

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Dephosphorization of Steels | ispatguru.com

 · Dephosphorization of Steels . The effects of phosphorus (P) on the properties of steels are summarized in Tab 1. It can be seen that P has both positive and negative effects on the steel's properties.

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Welcome to the Web Page of Dr. P. S. Ranawat

Dolomite is used in iron and steel industry as refractory raw materials and a flux. The BIS (IS: 10346–1982) has prescribed following specifications of dolomite for use in the manufacture of refractory bricks, felting materials and for the blast furnace and sintering plants.

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use of dolomite on dephosphorization steel

News Details - Dolomite, as a flux for iron and steel making, can neutralize acidic slag, increase the basicity of slag. It could reduce the activity of FeO in slag, so as to control the erosion of slag on furnace lining.

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CN101736114B - Composition for slag formation and ...

The invention provides a composition for slag formation, which comprises the following components based on the total weight of the composition: 45-65wt% of CaO, 10-20wt% of SiO2, 1-5wt% of MnO, 9-25wt% of MgO and 1.5-5wt% of Al2O3. The invention also provides a preparation method and a use method of the composition. The composition for slag formation provided by the invention can promote ...

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Preamble

Mn in hot metal produces MnO. MnO tends to retard the dephosphorization of the bath. Mn could be 0.5 to 0.8% Temperature of hot metal at charging is around 1250℃ to 1300℃. Proportion of hot metal in the charge is 75 -90% Fluxes Commonly used lime/limestone/ dolomite to bring down the softening point of the oxides, to reduce

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calcination of limestone for steel making in usa - DBM Crusher

The flux used in a dephosphorization furnace is lumpy calcined lime calcium oxide;CaO ... Energy Use in the US Steel Industry An Historical GreenBiz ... lime and dolomite for the steel industry SMA Mineral lime products in the Nordic countries. We have extensive experience of lime and handling lime.

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STEELUNIVERSITY BASIC OXYGEN STEELMAKING IMULATION

level of phosphorus in the steel, [%P], is equal to the level in the slag, (%P). 2.2.1 Phosphorus Partition Ratio Dephosphorization during the latter part of the basic oxygen steelmaking process is very important because the conditions are favorable compared to other processes within primary and secondary steelmaking.

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use of dolomite in ferro alloy plant

use of dolomite in ferro alloy plant use of dolomite in cement industries batteryrickshaw.co. use of dolomite in cement industries Headings Find HTS Our downloadable database is available to commercial importers and exporters importing into or exporting to the United States.

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System assessment of recycling of steel slag in converter ...

 · From these cases, the recycling of steel slag in converter steelmaking produced positive effects on the reduction of stock-pilling of solid steel slag wastes. Furthermore, the recycling of steel slag in converter steelmaking can reduce the consumption of dephosphorization agent and the cost of …

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What are the details of a magnesia carbon brick used for ...

 · 5.) Can purify molten steel. Refractory Magnesia calcium brick, mainly made from magnesium sand and synthesized magnesium dolomite sand, is a kind of alkaline refractories and contains CaO. The melting points of MgO and CaO in synthesized sand are both high, it's 2825℃and …

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Phase Equilibria in the System CaO‐MgO‐Iron Oxide at 1500 ...

Phase relations in the system CaO‐MgO‐iron oxide were determined at 1500°C at two levels of oxygen pressure, 10 –9 atm and 0.2 atm (air). Particular attention was directed toward de termining the maximum amount of iron oxide which may be tolerated in CaO‐MgO‐iron oxide bodies before a liquid phase forms under equilib rium conditions at the two chosen oxygen pres sures.

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Feasibility Study of Dephosphorization of Slag Generated ...

• Dephosphorization of Basic Oxygen Furnace slag is feasible if certain condition is maintained. • This process can benefit steel industries by reducing phosphorus load in input material. • Heating and cooling cycle enabled the segregation of phosphorus in different phases. This segregation is enhanced with …

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Development for the production of low phosphorus steel in

study is to evaluate the steel dephosphorization ... (e.g. lime, dolomite, fluorspar), the slag ... DEVElOPMEnT FOR THE PRODuCTIOn OF lOW PHOSPHORuS STEEl In THE OPERATIOnS AT ARCElOR MITTAl TuBARãO

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agricultural use of dolomite powder

use of dolomite in ferro alloy plant; dolomite powder mill price laos; use of dolomite on dephosphorization steel; which machine is use for making powder of lime; dolomite pulverizer for powder production line malaysia; application of crushed dolomite powder; use of dolomite in cement industries; quartz powder can be use …

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Double Slag Operation Dephosphorization in BOF for ...

Double Slag Operation Dephosphorization in BOF for Producing Low Phosphorus Steel TIAN Zhi-hong, LI Ben-hai, ZHANG Xiao-rning, JIANG Zhong-hang (Shougang Research Institute of Technology, Shougang Group, Beijing 100041, China) Abstract: A study on the production of low phosphorus steel by double slag operation in 210 t converter was carried out.

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Study on the Recycling of Hot Decarburization Slag in ...

Study on the Recycling of Hot Decarburization Slag in Dephosphorization Converter Yan-hui SUN 1, Xuefeng BAI 1, Chang-liang ZHAO 2, Lei LUO2, Zhi-hong TIAN2, Guo-Zhong PENG2 1 Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, …

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Magnesia-Dolomite Brick for AOD Lining_Yanmu

This product features a high resistance to slag in AOD furnace, and good resistance to thermal shock. Besides, applying this product can to a large extent magnify the effect of steel purification, in that it supports the desulfurization & dephosphorization process, and supports removing other impurities from the molten steel.

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Synthetic Flux and a Process for Dephosphorization of ...

 · Use of the developed flux and adoption of the process protocol could bring down the phosphorous content of the bath from approximately 0.12% to as low as 0.04%, rendering the final steel …

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dolomite specifications as a flux in steel making

Welcome to the Web Page of Dr. P. S. Ranawat. Dolomite is used in iron and steel industry as refractory raw materials and a flux. The BIS (IS: 10346–1982) has prescribed following specifications of dolomite for use in the manufacture of refractory bricks, felting materials and for the blast furnace and sintering …

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journals on dephosphorization of iron ore illia

use of dolomite on dephosphorization steel journals on dephosphorization of iron ore chrome-alumina dvc lining for steel dephosphorization, quite high in primary pig iron coming out the blast furnace or in sponge iron, Typical slags use for dephosphorization (dephos for short) processes are …

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Parameters Affecting Dephosphorization of Stainless Steel

A literary study has been made to find parameters affecting dephosphorization of stainless steel. Ways to lower phosphorus content without major loss of chromium in order to decrease the production costs of AB's stainless steel. The study was conducted with respect to oxidizing dephosphorization

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RU2298584C2 - Briquette for smelting steel - Google Patents

Briquette for the smelting of steel comprising iron-containing waste metallurgical manufacture comprising flue dust, pulverized dolomite and cement as a binder, characterized in that it further comprises a dust gas purification electric steel production the next ratios of components, wt.%:

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The advantages of magnesium dolomite refractories,Industry ...

Compared with the Mg-Cr2O3 magnesium dolomite refractories refractories, and its advantages are: 1, the domestic magnesite, dolomite resources are rich, wide distribution and low price. 2, magnesia dolomite refractories for molten steel CaO purification, in smelting clean steel, magnesia dolomite refractories has dephosphorization and ...

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"DEPHOSPHORIZATION OF STEEL PRODUCED FROM ... - …

Department of Metallurgical & Materials Engineering National Institute of Technology Rourkela-769 008, Orissa, India CERTIFICATE This is to certify that the thesis entitled, "DEPHOSPHORIZATION OF STEEL PRODUCED FROM SPONGE IRON IN THE INDUCTION FURNACE" submitted by Mr. …

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which industries use dolomite

use of dolomite powder in industry -, Dolomite divided into two grades in steel and Ferro-alloys industri Us The use of dolomite is gaining ground and . uses of dolomite in various industries - rkblawcollegein. use of dolomite powder IN INDUSTRY which industries use dolomite Dolomite After dolomite mining and crushing, we can use …

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Production of low phosphorus steels from high phosphorus ...

While dephosphorization of hot metal is theoretically ruled out in the Indian context, dephosphorization of liquid steel can also not be considered because of its adverse effect on ladle refractories and steel cleanliness. ... o Use of 0"6-0"7% silicon hot metal to obtain the optimum slag volume and slag basicity/fluidity in the oxygen ...

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(PDF) The effect of Na2O and Al2O3 on dephosphorization of ...

In a similar study to Ishii and Fruehan, [34] Li et al. [35] investigated the effect of Na2O and Al2O3 on dephosphorization of molten steel using high basicity MgO saturated CaO-FeOx-SiO2 slag ...

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Dolomite powder - Application of Dolomite

(1) Iron and Steel Industry: Dolomite is used in iron and steel industry as refractory raw material and as a flux. The ISI (Is 10346&1982) has prescribed the following specifications of dolomite for use in the manufacture of refractory bricks, fettling material and for the blast furnace and sintering plants.

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Dephosphorization ofStainless Steels

Test data on the use of Ca-CaF2 and CaC2-CaF2 fluxes are shown, and the importance ofthe post-treatmentof spent fluxes is pointed out for environmental reasons. Any dephosphorization step must satisfy the requirements of present processes For the production of stainless steel in terms of the …

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How can we decrease the phosphorus content of low carbon ...

 · Research and development of stainless steel dephosphorization technology can be divided into two categories, that is, oxidative dephosphorization and dephosphorization. Oxidative dephosphorization requires BaO-based or CaO-based alkaline slag, while dephosphorization requires Ca or calcium alloy. ... If you also add some dolomite …

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CN101736114B - Composition for slag formation and ...

The invention provides a composition for slag formation, which comprises the following components based on the total weight of the composition: 45-65wt% of CaO, 10-20wt% of SiO2, 1-5wt% of MnO, 9-25wt% of MgO and 1.5-5wt% of Al2O3. The invention also provides a preparation method and a use method of the composition. The composition for slag formation provided by the invention can promote ...

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