Abstract: To deal with the small particle size of Panzhihua ilmenite,the processes of smelting slag with Panzhihua titanium concentrate as raw material followed by redox calcination modification and hydrochloric acid leaching were adopted to produce high quality of titanium-rich material,which provides high q...
Abstract: The separation effect of iron and titanium and the existence forms of iron byproducts in NH4Cl rusting solution for the reductive ilmenite which was obtained by oxidation at 1 000℃ for 1 h then reduction at 1 000℃ for 1 h with H2/CO mixed gas using Panzhihua ilmenite as raw material were studied in ...
Abstract: The conversion rate of pentavalent vanadium in the calcination process of stone coal with biomass and additives was investigated to determine favourable parameters using Hubei carbonaceous stone coal with low vanadium concentration as raw material.It is found that the addition of biomass enhances th...
Abstract: The vanadium in acidic chromium solution,produced by the processes of sodium roasting for vanadium slag containing high concentration of chromium,leaching the roasted vanadium slag then precipitating vanadium from the leaching solution,should be removed to obtain qualified chromium products.Using fe...
Abstract: The vanadium extraction in combination blowing converter was simulated by 500 kg scale intermediate frequency induction furnace with top and bottom combinational blowing function,and the vanadium distribution(Lv) between iron and slag phase at blow end point was investigated. The compositions of van...
Abstract: Low concentration of titaniferous solution(160 g/L) was inductively hydrolyzed with seed crystals prepared under microwave,which has a favorable energy-saving effect on TiO2 production by sulfuric acid process.The calcination parameters of metatitanic acid were determined by TG and SEM analysis.The ...
Abstract: In order to study the influence of sand milling process on properties of rutile titanium white,an initial product of rutile titanium dioxide white from the roll-in process was sand milled on a simulated vertical sand mill in laboratory. The results show that the optimum parameters for sand milling p...
Abstract: The microstructure,phase composition,corrosion resistance,hydrogen adsorption and desorption properties of the VTiNi vanadium-based hydrogen storage battery added with various contents of graphene were tested and analyzed in this paper. The results show that the graphene could significantly improve ...
Abstract: Nano-TiO2 photocatalysis material was prepared by sol-gel method using butyl titanate as precursor and polyethylene glycol as template agent. The samples of nano-TiO2 were characterized by XRD,SEM and UV-Vis. The catalytic activities of the TiO2 samples prepared at different calcination temperatures...
Abstract: Electromagnetic pulse shaping is a new type of method compared with the normal hydraulic forming,which has a good application prospect. TA15 titanium alloy tube samples were respectively formed by hydraulic and electromagnetic pulse methods,and the microstructures,mechanical properties and wear resi...
Abstract: The distribution,morphology and size of precipitation in V-Mo-N microalloyed steel with various V content had been studied via thermal simulation and TEM observation. Hardness test was also carried out.The result shows that the second phase seems to be V(C,N) without Mo which is almost solute in the...
Abstract: The effects of vanadium(V) micro-alloying on the properties of Z-beam with high strength and weather-resistance were researched according to the mechanical properties tests and precipitated phase analysis for the Z-beam samples prepared under different contents of vanadium and nitrogen by mediumfreq...
Abstract: The recovery of titanium by solvent extraction from spent sulfuric acid discharged in titanium dioxide production,using primary amine N1923 and 2-octanol as agents was investigated. The effects of various process factors including stirring rate,2-octanol concentration,O/A phase ratio,extraction temp...
Abstract: Spent SCR catalyst contains vanadium(V),tungsten(W),titanium(Ti) and other valuable metals.Direct discard will cause not only environmental pollution but also a waste of resources,so the recovery of valuable metals from the spent catalyst has a great significance. A hydrometallurgical process for re...
Abstract: The slow cooling tailings produced in the process of silicon-titanium alloy extraction from high titanium blast slags by plasma fusion technique were used as castables binders,and the effects of the slow cooling tailings addition(wb:0percent,2 percent,4 percent,6 percent and 8 percent) on the proper...
Abstract: Composite material(TiO2/BFSF) of TiO2 loaded on blast furnace slag fibre(BFSF) was prepared by impregnation-depositing process using BFSF as the carrier. The crystal form,grain size,specific surface area of TiO2 and microstructure of the composite TiO2/BFSF were characterized by XRD,particle size an...
Abstract: The method for simultaneously determining the contents of 8 key impurities in the vanadyl sulfate solid used for vanadium battery by inductively coupled plasma atomic emission spectrometry(ICP-OES) was established respectively with the detection range of 0.001%~0.100% for Fe,Cr,Ni and 0.005%~0.100% ...
Abstract: In order to find the appropriate flux,the different types of flux matching is studied with respect to their influence on green pellet strength,burst temperature and compressive strength. And the suitable roasting interval of the magnesian flux pellet was investigated and the appropriate amount of li...
Abstract: In order to study the effect of MgO content on high magnesium alkaline pellet strength,Factsage thermodynamic software,liquid nitrogen adsorption instrument,and X-ray diffraction method had been used with fixed basicity of 1. 0.The results show that under the premise of 1. 0 fixed basicity,with the ...
Abstract: Five kind of recarburizers,namely,graphite,coke,carbon granule,low nitrogen recarburizer and anthracite are used for carbonization of vanadium-containing hot metal at temperature of 1 500℃.It is found out that graphite and low nitrogen recarburizer are the best,followed by carbon granule and anthrac...
Abstract: The potential chemical reactions of chlorine element in blast furnace were investigated by using the thermodynamic software(HSC Chemistry 6.0). The major chemical reactions at different range of temperature were analyzed,and the reaction behaviors were obtained under the three kinds of smelting cond...
Abstract: The effect of oxygen-supplying system,controlling of lance height,condition of the first deslagging on dephosphorization in 120 t top and bottom combined blown converter was studied based on plant trials using double slag process.The results show that the optimum conditions for dephosphorization are...
Abstract: In order to explore the relationship between refining slag,molten steel and inclusion,the activity of components in CaO-MgO-Al2O3-SiO2 refining slag is calculated by Factsage software.The results indicate that aAl2O3,aCaO,aMgO,aSiO2 at 1 600℃ ranges from 0.003 to 0.04,from 0.35 to 0.9,from 0.49 to 0...
Abstract: In order to stabilize the low temperature toughness of corrosion resistant steel,effect of calcium treatment on low temperature toughness of corrosion resistant steel has been studied.The results show that compared with the traditional calcium treatment process,the modified calcium treatment process...
Abstract: The relationship between microstructure and the stretch-flangeability of F+B dual phase steels had been studied by observing the microstructure of F+B dual phase steels with different hole expansion ratio.When the microstructure consists of polygonal ferrite and granularbainite,the DP steel exhibite...
Abstract: Dual phase steels are commercially attractive since they offer good formability at a high strength.These steels exhibit high n-values and high uniform and total tensile elongations. However,one limitation in the application of high strength dual phase steels is failure during sheared edge stretching...
Abstract: The method of trial production of high-strength microalloying 20 MnSi reinforced bar had been present in this paper. The mechanical properties and microstructures of the tested steel were investigated by universal tensile machine,scanning electron microscopy and transmission electron microscope. It ...
Abstract: The producing process and properties of subway wheel steel ER7 is researched with the routine of LD-LF-VD-CC,by micro-alloying of vanadium and chromium,calcium treatment and sulfur wire-feeding.Carbon segregation,center porosity and shrinkage cavity was effectively improved by steel superheat,second...
Abstract: Corner fine cracks and scaling defects could be found on the U75V rail after being used in the curve segment for a period of time.The reason for defects was analyzed by means of chemical analysis,mechanical testing,metallurgical testing and scanning electron microscope.The results showed that the da...
