Abstract: This paper summarizes and sorts the operational data of titanium dioxide industry in China in 2022, such as production capacity, yield, apparent market demand, production capacity distribution, etc., and focuses on analyzing the recent growth trend of titanium dioxide production capacity and the cor...
Abstract: The effect of structural evolution of metatitanic acid on sulfur content was investigated by hydrolyzing the industrial TiOSO4 solution via thermal hydrolysis method with extra-adding seed. The hydrolysis process was divided into fast hydrolysis stage and slow maturation stage, the change of hydroly...
Abstract: Using hydrolyzed metatitanic acid and calcined seed crystals as raw materials, different proportions of calcined seed crystals were added to metatitanic acid, and the calcination temperature was adjusted to prepare the TiO2 product with a rutile content of 98% to 99%. The influence of the amount of ...
Abstract: The reduction kinetics of iron oxide in metatitanic acid by organic reductant was investigated in the paper to explore the process mechanism and guide the actual production. The results show that the step reaction order is one for the organic reductant and two for iron oxide. Under the condition of ...
Abstract: After acid leaching of vanadium-bearing steel slag, the slurry is flocculated and concentrated to produce high-concentration leached slag. For subsequent recovery of vanadium ions, the multistage continuous countercurrent decantation is used to wash the leached residue. Through the flocculation sedi...
Abstract: A certain amount of potassium hydroxide was added to the hydrated titanium dioxide to study the mechanism of potassium in the system during the transition from hydrated titanium dioxide to rutile titanium dioxide, and the effect of potassium on the particle size and viscosity of hydrated titanium di...
Abstract: Vanadium pentoxide (V2O5) has attracted extensive attention due to its layered structure, abundant resources, high capacity, low cost, high Na+ ionic conductivity, small volume change during Na-ion insertion/extraction, and mesopotential platform. V2O5/graphene nanocomposites were successfully prepa...
Abstract: The thermal simulation test was carried out and high temperature deformation behavior of the as-cast Ti-6Al-4Sn-8Zr-0.8Mo-1.5Nb-1W-0.25Si short-time high temperature titanium alloy was studied. The experimental results show that the deformation of Ti-6Al-4Sn-8Zr-0.8Mo-1.5Nb-1W-0.25Si alloy is sensit...
Abstract: Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe titanium alloy was subjected to duplex aging heat treatment, and the effect of double-stage aging on the microstructure and properties of high-strength β-titanium alloy was comparatively studied. The aging temperature was 650 ℃+450 ℃. The research results show that the ...
Abstract: The diatomite/BiVO4 composite materials with different diatomite content (5%~80%) were prepared by liquid precipitation method. The samples were characterized by XRD and UV-Vis. The results show that the composite consists of monoclinic BiVO4, tetragonal BiVO4 and SiO2. BiVO4 can be transformed into...
Abstract: The 0.15 mm Ti-Ni alloyed titanium foil was annealed under different conditions, and its microstructure and texture evolution after annealing were systematically studied by Electron Backscatter Diffraction (EBSD). The results show that when the titanium alloy foil is isothermally annealed, with the ...
Abstract: Laser cladding repairing technology can be used to repair damaged TC4 alloy components. Compared with forged components, oxygen is more easily introduced during laser cladding, which results that cladding components have the problems of high oxygen content and low strength. In this study, TC4-xY (x ...
Abstract: The microstructure and properties of TiBw reinforced high-temperature titanium matrix composite forgings formed by integral forging and the effects of different heat treatment processes on the microstructure and properties of forgings were studied by scanning electron microscope and electronic unive...
Abstract: In this paper, the multi-directional forging test of Ti80 titanium alloy for automobile manufacturing was carried out, and the microstructure, room temperature mechanical properties and wear resistance of the alloy samples were tested and analyzed. The results show that the forging temperature and t...
Abstract: In this paper, the direct reduction-magnetic separation method was used to recover Fe from vanadium titano-magnetite (VTM) tailings. Under the conditions of reduction temperature 1250 ℃, reduction time 2 h and reducing agent dosage 20% of the mass of the tailings, the metallization rate of pellets w...
Abstract: In this paper, in view of the key steps in the vanadium extraction process, METSIM software was used to carry out the process modeling and material balance in the extraction process from vanadium bearing steel slag using pressure strengthening , and the mass flow rate of each logistics and the detai...
Abstract: In order to improve the high-quality and large-scale effective utilization of vanadium-titanium iron ore tailings (VIOTs), composite cementitious materials (CCM) were prepared with VIOTs as the main raw materials. The effects of grinding characteristics of VIOTs, content of VIOTs on the properties o...
Abstract: A low-grade ilmenite in Panxi region contains TFe 17.14% and TiO2 6.32%, which is currently in the undeveloped state. For the equal and efficient exploitation and utilization of Fe and Ti in the ore, research on pre-concentration to remove part of tailings, reduce grinding amount and increase feed g...
Abstract: To accurately explore the dynamics of carbon reduction reaction of vanadium-titanium magnetite powder, the test was conducted by hydrothermal method without adding any modifier. Carbon-coated vanadium-titanium magnetite powder was prepared with glucose as carbon source. The heating curves of weightl...
Abstract: In order to explore the interaction mechanism between different burdens in the softening-melting process of the blast furnace in Pangang, the softening-melting properties of different single burdens and their mixed burden were tested. Meanwhile, the interrupt experiment of softening-melting properti...
Abstract: This paper establishes a mathematical model of bottom gas blowing for a 40 t eccentric electric arc furnace in a steel plant. The fluid flow characteristics in the bath of an electric arc furnace under different bottom blowing conditions were numerically simulated using Fluent software. The effect o...
Abstract: 316H austenitic stainless steel is used as the main structural material of the Chinese fourth-generation advanced sodium-cooled fast reactor heat exchanger. The premise of realizing domestic production is to obtain the reasonable control limit of the key trace-elements such as C and N. However, the ...
Abstract: Based on the process of ladle tapping, a five-phase numerical model including molten steel, molten slag, gas phase, argon bubble and inclusion had been established and used to investigate the feasibility of improving inclusions removal by argon blowing stirring during the tapping process, and the ef...
Abstract: High chromium cast iron matrix composites reinforced with (W&Ti)C composite particles were prepared by in situ method, and the effect of reinforced particles on the microstructure and wear behavior of the material was studied. The results show that the presence of WC and TiC particles in the com...
Abstract: Through heat treatment test, microstructure observation, thermodynamic model calculation and thermo-cacl software, the austenite grain size as well asthe dissolution and precipitation behavior of microalloying elements in pipeline steel during reheating had been investigated.. The results show that ...
Abstract: Hot-rolled steel plates used in engineering machinery have strict requirements not only on mechanical properties but also on surface quality. NISCO successfully produced hot-rolled steel plates for high-quality engineering machinery by optimizing chemical composition design, controlling molten steel...
Abstract: The evolutions of microstructure and texture for Hi-B steel using low-temperature slab heating technology were studied by optical microscope and X-ray diffractometer. The results show that the distribution of microstructure and texture is not uniform from the surface to the center layer in the hot-r...
Abstract: Different contents of vanadium and molybdenum were added into the traditional 32MnB5 hot formed steel under laboratory conditions, the hydrogen embrittlement sensitivity of the microalloyed material was evaluated by slow strain rate tensile test, and the change mechanism of hydrogen embrittlement re...
Abstract: In order to study the industrial application effect of Te metallurgy in 303Cu stainless steel, the industrial production test of adding Te to 303Cu stainless steel was carried out. The influence of Te addition on the corrosion resistance of 303Cu free-cutting stainless steel was investigated, and th...