Abstract: In order to address the complex challenge of ilmenite flotation separation, an extensive single-factor variable test was conducted to investigate the parameters influencing ilmenite flotation and determine the optimal process conditions. To gain a comprehensive understanding of the parameter interac...
Abstract: Magnetic separation plus flotation has gradually become the best process for comprehensive recovery of ilmenite. Flotation recovery is faced with the characteristics of large specific ore, coarse particle size, high slurry concentration (ca. 65%), and high mass pull. According to the existing flotat...
Abstract: Aiming at a low-grade vanadium titanomagnetite resource in Xinjiang, an experimental study on efficient comprehensive recovery of iron and titanium benefication was carried out. According to the specific properties of the ore, a technological process of iron and titanium comprehensive recovery was d...
Abstract: Starting from the study of interface properties of ilmenite, the single mineral flotation test, collector adsorption capacity, contact angle, and ζ potential measurement were conducted to study the mechanism of oleic acid and benzohydroxamic acid on the flotation of ilmenite. Oleic acid and benzohyd...
Abstract: Aiming at the characteristics of low iron grade, fine distribution size of magnetite and complex relationship with gangue minerals of a refractory iron ore in Qinghai province, the technological process of dry throw-stage grinding and stage magnetic separation was adopted for experimental study. The...
Abstract: In view of the complex mineral composition of a ilmenite from overseas, the close symbiotic relationship between valuable minerals and the fine particle size of ilmenite, the experimental study on the beneficiation process of the refractory ilmenite ore was carried out using the stage grinding-stage...
Abstract: Taking an underground mine in Panxi as an example, the exposed area of the stope was estimated based on Mathews stability diagram method and empirical analogy method. It is recommended that the allowable exposed area of the stope roof is 800 to 1200 square meters, and the allowable exposed area of t...
Abstract: Aiming at solving the problem of determining the reasonable thickness of the overburden layer in the conversion of open-pit to underground caving mining of the hanging wall ore body in an iron mine in Panxi, the Similarity Model test and Numerical Simulation were used to analyze and study the moveme...
Abstract: Based on the Factsage thermodynamic software and database, the effects of introducing oxygen on the TiC and calcium magnesium oxide chlorination in titanium carbide slag are analyzed, and the regulatory scheme of adding oxygen to selectively enhance the chlorination reaction of TiC in the slag while...
Abstract: The thermal deformation behavior of Ti-55511 alloy was studied by isothermal compression simulation method at the temperature of 700～950 ℃ and strain rate of 0.001～10 s−1. The results show that the softening mechanism of the alloy is very sensitive to the change of hot working parameters. Under the ...
Abstract: In order to study the effect of post heat treatment on the properties of annealed Ti75 alloy, different post treatment conditions including annealing temperatures and cooling rates were selected to treat the annealed Ti75 alloy. The microstructure evolution was analyzed by OM and SEM, and the influe...
Abstract: Based on the finite element software, a thermo-elastic-plastic finite element model of 30 mm thick TC4 titanium alloy butt plate considering the creep stress relaxation effect was established. The temperature field and stress field in the electron beam welding process of TC4 titanium alloy butt plat...
Abstract: In this paper, the titanium-aluminum-based multi-component alloy was prepared from Panzhihua acid-soluble titanium slag, aluminum powder and calcium oxide. After directly nitriding treatment at different temperatures and different time, a nitrided layer was obtained. Scanning electron microscopy, X-...
Abstract: Titanium dioxide coated silicon (Si@TiO2) nanocomposites with core-shell structure was prepared by hydrolysis method using TiCl4 as titanium source and commercial nano-Si as silicon source. The materials were characterized and tested by XRD, SEM, TEM and electrochemical platform. The results show th...
Abstract: In this paper, the theory and technology of comprehensive utilization of zinc containing dust in steel plants at home and abroad are analyzed. The pyrometallurgical process is based on high-temperature carbon metallurgy with coal carrier. High energy consumption, enlarged carbon emission and serious...
Abstract: The TFe grade of a vanadium-titanium-iron concentrate in Panxi is 55.88%. The chemical composition of the main impurity elements in the sample include TiO2, SiO2, Al2O3, MgO and CaO, the proportion of impurities such as granular ilmenite and gangue minerals accountes for 14.26%. Ilmenite is mainly e...
Abstract: An iron tailings in the northern China contains 2.93% P2O5, most of which is crystalline apatite and belongs to low-grade phosphorus resources. In order to realize the efficient recovery of phosphorus in the iron tailings, the experimental study on phosphorus flotation was carried out according to i...
Abstract: In order to improve the efficiency of waste acid concentration, the single factor test and orthogonal test of waste acid concentration process were carried out in the laboratory by using vacuum rotary evaporator to simulate the vacuum evaporation concentration of waste acid. Then, based on the resul...
Abstract: The effects of sound pressure amplitude, frequency, initial equilibrium radius of the cavitation bubble and gas multiplicity index on the cavitation bubble size in the liquid steel were investigated by solving the function of the power ultrasonic action period T and the cavitation bubble radius R us...
Abstract: In this work, the precipitates and microstructure characteristics in four X80 pipeline steels with different vanadium contents (0.036%, 0.075%, 0.110% and 0.150%) and their effects on the strength and plasticity of the steels were investigated by means of high-resolution transmission electron micros...
Abstract: The solid solution behavior of nanocarbide and austenite grain growth in Nb-Ti microalloyed steel during high temperature heating were studied by means of transmission electron microscope, optical microscope and thermodynamic calculation. The results show that the austenite grain size and size of pr...
Abstract: In this study, an optimum design of bainite phase in the commercial quenching and partitioning (Q&P) steel was achieved through the combined results from thermodynamics, kinetics analysis and the pilot experiments. Considering the complex microstructure evolution during partitioning stage of the...
Abstract: The microstructure was observed by means of optical microscope, scanning electron microscope, etc. The change of austenite grains of the steels with different Cr contents under different reheating temperature and holding time of the casting billet was studied. The effect of Cr content on austenitiza...
Abstract: The compression tests of 9Cr18Mo stainless steel were conducted by using the UTM5305 universal testing machine and the split Hopkinson pressure bar (SHPB) test device. In this way, the stress–strain curves pertaining to quasi-static (strain rate: 0.001-0.1 s−1) and dynamic (temperature: 25-650 ℃ and...
Abstract: High-temperature tensile tests have been conducted to examine the thermoplasticity of titanium microalloyed high-strength beam steels in the temperature range of 600 ℃ to 1300 ℃. Thermo-calc, the thermodynamic calculation software, was used to calculate the main precipitation intervals in various ex...
Abstract: Effects of on-line solution treatment and holding time on the microstructure and mechanical properties of 2507 duplex stainless steels were studied by hot-rolling experiments, Zeiss optical microscope (OM) and transmission electron microscopy (TEM). The results show that the volume fraction of ferri...
Abstract: In order to improve V-shape segregation in rail steel bloom, the feature of macro-profile and microstructure were tested and theoretical shrinkage value and actual volume of V-shape was compared. The influencing factors including dynamic soft reduction processes, grade of steel and technology of mic...
Abstract: A 2 mm thick Q235 steel plate and a 5052 aluminum alloy plate had been used for CMT arc butt welding-brazing. The effects of welding speed and wire feeding speed on joint weld formation, interface microstructure and mechanical properties were studied. The results show that when the wire feeding spee...
Abstract: In the test, artificial defects were made in the rolling slip area and rolling stable area on the surface of the casting slab without over standard defects. Normal heating, rolling and straightening processes were adopted, and samples were taken and polished at the corresponding artificial defects o...
Abstract: This article mainly introduced the revision background, historical evolution, and standard analysis of the new standard GB/T 3623-2022. This article is in order to provide guidance for the reference, production and acceptance of the standard in the follow-up process, deepen the understanding of the ...
