Abstract: By sodium hydroxide melting process,separation of components from Ti-bearing blast furnace slag in Panzhihua was conducted in this paper. The chemical reaction processes of the original mineral phase and intermediate products at different temperatures were investigated by analyzing the structure and...
Abstract: The reaction system in which the titanium component transforms into pseudobrookite （Fe2TiO5） by sulfating decomposition of perovskite （CaTiO3） was analyzed.The results show that the transformation can be completed through one step by introducing SO2+O2mixed gas into the CaTiO3/FeSO4 reaction system....
Abstract: According to characteristics of low vanadium concentration and multitudinous impurities for the sulphuric acid leaching solution of vanadium slag roasted with calcium components,high-purity vanadium pentoxide （V2O5） was prepared by solvent extraction from the acid leaching vanadium-containing soluti...
Abstract: The reduction of vanadium oxides in the blast furnace hearth has an important influence on the yield of vanadium.The effects of slag composition and temperature on the reduction of vanadium oxides were studied.The effect of binary basicity was significant on the reduction of vanadium oxides and the ...
Abstract: According to the problem that the grade and recovery rate of fine grained ilmenite in Panxi area cannot be satisfied simultaneously by high gradient strong magnetic separator,a separation process combined with flotation using the suspension-vibration conical concentrator and high gradient strong mag...
Abstract: According to the characteristics of a micro-fine magnetite from Shanxi that a part of magnetite is interbedded interactive disseminating in the micro-fine gangues with a high sulfur content resulting in difficulty for processing,a technological process including rough crashing for raw ore and tailin...
Abstract: Nano-titanium carbide （TiC） was prepared by in-situ carbothermal reduction under vacuum condition using the precursor synthesized by sol-gel method with tetrabutyl titanate（Ti（C4H9O）4） and sucrose as titanium and carbon sources,respectively. X-ray diffraction and scanning electron microscope were re...
Abstract: The microstructure and mechanical properties of high temperature titanium alloy TG6 under different conditions such as cast state,hot isostatic pressing and annealing treatment were studied.The results shows that the microstructure of the as-cast alloy is coarse Widmanstaten with shrinkage porosity,...
Abstract: TiC particle reinforced martensite wear-resistant steels with a hardness of HB450 were fabricated by mold casting and continuous casting processes.The principal of precipitation of TiC in experimental steels was studied.The microstructures and mechanical and wear-resistant properties of obtained ste...
Abstract: The new-typed W6Mo5Cr4V8 In high vanadium high speed steel used for numerical control machine were heat treated at various temperatures to test and analyze the microstructure,impact property and wear resistance. The results show that with heat treatment temperature increasing from 1 050 ℃ to 1 150 ℃...
Abstract: Lanthanum （La） component was doped on TiO2 supporter by co-precipitation method,and vanadium （V）,tungsten （W） components were then doped on La2O3-TiO2 composite by impregnation method to prepare V2O5-WO3/La2O3-TiO2 catalyst.The effect of La2O3 doping amount on the performance of selective catalytic ...
Abstract: The effect of vanadium on the magnetic properties of oriented electric steel was studied by testing and analyzing the iron loss P17 and magnetic induction B8 of the samples,with adding different content of vanadium in oriented electric steels.The results show that the average grain size and the iron...
Abstract: The blast furnace slag was studied using Fact-sage thermodynamic software to simulate the precipitation temperature,species and contents of the minerals precipitated in the cooling process of molten blast furnace slag.The viscosity curves of blast furnace slag during cooling process were obtained by...
Abstract: With blast furnace slag as raw material,the slag fibers were directly prepared by centrifugation process.The crystal content of the slag and properties of the formed slag fibers including the diameter,shot content and moisture with different acidity coefficients （Mk） for the slag,were determined at ...
Abstract: The tailings from the dressing plant of JISCO contains about 25% iron,which has a high recovery value.Iron mainly exists in form of Hem-limoniteOre,and some of them in siderite and magnetite in this tailings.In this paper,the process of magnetizing roast-low intensity magnetic separation and high in...
Abstract: In order to reduce the waste of sintering resources,sintering electric removal dust is explored to make metallic pellets with better metallurgical performances by adding certain appropriations of mill scale,activated carbon,bentonite and organic binder.Compressive strength and the dezincification pe...
Abstract: The viscosity of vanadium titano-magnetite slag from Chengde iron ＆ steel company is greater than the common slag,the separation of the slag-iron is difficult and the iron content in slag is about 2%,all of which make the usage of slag difficult and production cost higher.This study had been done to...
Abstract: The gas-injection BF process was proposed in order to overcome the adverse effects of pulverized coal injection,where the reducing gas produced by normal coal in a gasifier is injected to BF from tuyeres.The influence of process parameters on gas quality was determined. The results show that CO+H2 c...
Abstract: TTT curve was constructed using SHTT II melting and crystallization temperature measuring instrument,then the mold flux devitrification activation energy was calculated at different levels of CaF2.To calculate the rate of crystallization and analysis crystalline phase,X-ray diddractometer combining ...
Abstract: With numerical simulation and industrial experiments,inclusions movement behavior in tundish under non-isothermal condition had been analyzed. Numerical simulation indicates that inclusions with different sizes tend to separate after ladle changing during continuous casting process,and inclusions wi...
Abstract: In order to understand the metallurgical effect of industrial by-product AF3FTM which can be as the substitute of fluorite in steelmaking process,slag melting characteristics test,hot metal desulphurization and molten steel desulfurization experiments had been done to compare the slagging and desulf...
Abstract: Different amounts of CaF2,MgF2,Na3AlF6,mixture of CaF2 and Mg F2 were added into the liquid steel for Al2O3 inclusions modification. The results show that total oxygen content of the treated steel obviously decreases,but the amount of addition needed shall be in a suitable range. adding 1.0% of mixt...
Abstract: The influence of different temperature and hydrogen flow rate on reduction of Bayan Ebo iron concentrate powder was studied by a visible fluid bed.The results show that increasing hydrogen flow rate helps to improve the reduction efficiency at the same temperature.However,this effect becomes apparen...
Abstract: The composition system,cooling treatment process,microstructure and performance of 800 MPa dual phase steel have been studied,and the effects of annealing temperature and cooling rate on the properties have been investigated.The strengthening mechanism of dual phase steel was analyzed,and the anneal...
Abstract: The acicular ferrite in high strength ship plate steel was observed by confocal scanning laser microscope （CSLM）,and morphology in steel of in situ observation was investigated by using optical microscopy.The results show that holding time of 900 s is in favor of acicular ferrite nucleation.The aust...
Abstract: A cold-rolled high strength IF steel was annealed at two different heating rate to study the evolution of microstructure and recrystallization texture of IF steels. The results show that the γ-fier（{111} or（ND‖＜111＞）） of IF steel form at both of two recrystallization annealing processes.When the sam...
Abstract: The formation conditions of inclusion in 82 B hard wire steel was predicted by the thermodynamics calculation. The calculation results indicate that when low basicity slag is used,the content of[Al]S in the molten steel increases with the increasing of wCaO/wSiO2 ration and the content of Al2O3 in i...
Abstract: Scanning electron microscopy along with energy dispersive spectroscopy and optical metallographic microscope were employed to analyze the cause of formation of sliver defects on the surface of steel plate.The results show that the main reasons for the sliver defect of steel plate surface are the scr...
