Abstract: Vanadium and chromium have the similar chemical properties and naturally coexist at most occasions,so the problem for separation of vanadium and chromium has not been properly solved for a long time.The solvent extraction is currently the most common method for the separation of vanadium and chromiu...
Abstract: As an anode material of lithium ion battery,lithium titanate（Li4Ti5O12） has the advantages of stable structure,long life and high safety,and it’s getting more and more attentions in the fields of power and energy storage.However,lithium titanate has a low conductivity and poor electroconductibility ...
Abstract: Based on the properties and petrographic analysis of a refractory stone coal from Hubei province,a novel vanadium extraction process of fluidized roasting-acid leaching with additive-solvent extraction-precipitation was proposed.The effects of roasting temperature,roasting time,dosage of additives,s...
Abstract: Vanadium and chromium in low valence are difficult to be leached in alkaline medium.For vanadium and chromium leaching,roasting with sodium salts might emit some poisonous gas and large amount of waste water,while roasting with calcium salts will consume much more energy.H2O2 as an oxidant was appli...
Abstract: This paper focused on vanadium and chromium separation in solution using hydrolysis technology.The factors of p H value,temperature and time for vanadium precipitation have been investigated to study their effect on the precipitation rate of vanadium,and the optimum parameters have been determined a...
Abstract: The preparation of Ti-Al based alloy by aluminothermic reduction of Ti-bearing slag is a promising process due to the low cost of raw materials and products.To obtain a good slag-metal separation and required composition of Ti Al alloy,the material proportioning calculations are necessary. In this w...
Abstract: The isothermal carbothermal reduction of oxidized ilmenite concentrate/carbon composite pellets was performed with coke as reductant,and the kinetics was analyzed by integration method. The reduction temperature was set at 1 000,1 100,1 200 and 1 300 ℃,respectively.The reduction degree of iron oxide...
Abstract: Influence factors of low grade industrial aluminum for ferrovanadium preparation by aluminothermic reduction process were analyzed.Main components of different grades of reducing agent and its effects on vanadium loss and composition of alloy with different grades were investigated. The analysis sho...
Abstract: In order to make titanium based metals fit for the implant environment of human body and improve the wettability and corrosion resistance,TiO2 nanotubes were prepared on the surface of titanium by anodic oxidation method at 25 V of DC voltage using NH4F and ethylene glycol as electrolyte.The effects...
Abstract: Nano-TiO2 photocatalyst was prepared by sol-gel method with tetrabutyl titanate as the raw material.The phase composition,microstructure and photocatalytic properties of the obtained nano-TiO2 samples were characterized by XRD,SEM,UV-Vis,specific surface and aperture analyzer,respectively. The resul...
Abstract: Using titanium dioxide as the initial titanium source and lithium carbonate as the initial lithium source,lithium titanate samples were synthesized via solid phase routes with adjusting the ratio of Li/Ti at0.8,0.85,0.9 respectively,based on a deep study of the reaction principles for lithium titana...
Abstract: The electrochemical corrosion and electrochemical cycle stability tests of Mg2Ni-Ti hydrogen storage alloys with different contents of Ti were carried out.The results show that the addition of Ti as alloying element can improve the electrochemical corrosion resistance and electrochemical cycle stabi...
Abstract: TIG welding experiments on 20 mm thick TC4 titanium alloy plate were carried out by two varying heat inputs,and the joints were investigated in terms of microstructure,mechanical properties and welding defects.Microstructural observations showed that martensite in welded zone is more dispersed than ...
Abstract: Electron beam welding（ EBW） tests have been conducted on TA1 commercially pure titanium medium plates with a thickness of 30 mm.The effect of EBW welding process on microstructures and properties of TA1 material has been investigated by observing the microstructures and conducting Vickers hardness t...
Abstract: In order to utilize titanium-bearing blast furnace slag,taking Panzhihua Ti-bearing blast furnace slag as raw material and recovering the titanium component through high temperature modificationflotation separation process.For flotation tailings,the characteristics of the mineral composition,micro-m...
Abstract: Blast furnace slag has high level of heat energy,which belongs to high grade waste heat resource,and is of great value for recovery.Taking blast furnace slag as heat source,air as gas quenching medium,air and water as heat exchange medium,rotary slag cooler is applied to carry out high temperature r...
Abstract: For the purpose of effectively leaching zinc from blast furnace dust by means of NH3-(NH4)2SO4-H2O ammonia system,the effects of liquid-to-solid ratio,leaching time,leaching temperature,total ammonia concentration and stirring rate on the zinc leaching rate had been experimentally investigated,and t...
Abstract: The active semi char loaded with Zinc Oxide was prepared by electrochemical deposition with a semi coke as the carrier,zinc nitrate（Zn（NO3）2） and six times methyl four amine（ HMT） as the electrolyte.The samples were characterized by SEM,TEM and FT-IR,and the effects of different electrolysis tempera...
Abstract: In the production of fluxed sinter,calcium ferrite as a low melting point compound which appears to be the starting point of liquid phase formation.During the sintering of iron ore the calcium ferrite acts as a reactant to form complex calcium ferrite in sinter,its amount and distribution affect the...
Abstract: In order to further analyze the influence of composition and temperature of slags and hot metal on the titanium distribution ratio under the conditions of furnace protection with titanium ore,the production data of a blast furnace in China was statistically analyzed. And with the help of thermodynam...
Abstract: In order to control surface cracks in blank beam during continuous casting process,the thermomechanical coupling model of heat transfer,solidification and shrinkage of slab in mold was established by using multi-load step method.According to the calculation results about air gap,based on the princip...
Abstract: The reason and countermeasure of "ridging"defect on the surface of stainless steel products is clarified,the advantages and disadvantages of various methods to improve the solidification quality of the casting billet are analyzed. Based on the previous theoretical and experimental results,the idea o...
Abstract: The content,type,size and origin of large inclusions in two kinds of low cost carbon structural steel Q235 D in a steel factory in north China were studied systematically by inclusion tracing.The results shows: 120 tons BOF—CC process,the average content of T[O]in steady casting billets is 76×10-6,a...
Abstract: To investigate the microstructure evolution of 316 stainless steel during the slow strain tensile test,strain control is adopted and the strain rate is 10-3 s-1. The specimens are mechanically polished,then chemically-etched,and the tensile test is carried out. The microstructure is investigated by ...
Abstract: In order to solve the quality problems of 700 L thin slab during Tangshan iron and steel company FTSC continuous casting,force situation of solidification shell in funnel-typed mold and FTSC（ Flexible Thin Slab Casting） spray of secondary cooling was analyzed for thin slab continuous casting,at the ...
Abstract: In the development of IF steel in ferrite rolling process,the fine longitudinal stripe defects had been observed on the surface of cold rolled product,and the defect is different from the conventional rolling process.In order to find the reason of causing this kind of defects and thereby solve the p...
Abstract: In this paper,the spot welding performance of DP780 cold rolled sheet was evaluated by measuring the nugget diameter and penetration rate,detecting the shear force,texting the hardness of the welded joints,amd analyzing the microstructure and morphology,in order to propose the weldable process scope...
Abstract: The surface modification of mechanical gasket made of 1Cr5MoVSr steel was carried out using laser-cladding technique with varying laser power,spot diameter and scanning speed.Its wear resistance and impact resistance performances were tested and analyzed. The results show that with increasing the la...
Abstract: In this paper,the effects of initial forging temperature and final forging temperature on the press forging of 1045 steel for the automotive flywheel plate was investigated.The impact performance and wear resistance were tested and analyzed.The results show that when the initial forging temperature ...
