2015 Vol. 36, No. 3

Separating and Extracting of Vanadium and Titanium
Theoretical Analysis on Use of V-Ti Magnetite in a New Route
Zhang Jun, Yan Dingliu, Qi Yuanhong
2015, 36(3): 1-5. doi: 10.7513/j.issn.1004-7638.2015.03.001
Abstract(96) PDF(2)
Abstract:
The feasibility of resources comprehensive recycling from V-Ti magnetite by sodium alkali reaction and carbothermic reduction in one-step was discussed through thermodynamics analysis. Based on the calculation,rational process route was proposed,and corresponding measurements were put forward to imp...
Titanium Concentration of Dry Tailings from Iron Separation of a Low-grade Vanadium-titanium Magnetite
Chen Chao, Zhang Yushu, Zhang Shaoxiang, Long Yunbo
2015, 36(3): 6-10. doi: 10.7513/j.issn.1004-7638.2015.03.002
Abstract(86) PDF(1)
Abstract:
The dry tailings from iron separation of a low-grade vanadium-titanium magnetite contain 9.65% TiO2. Due to an acute shortage of water in the mining area,titanium resources in the tailings have not been recycled. Considering the dissemination features of iron and titanium minerals in the tailings,a ...
Research on Reducing Compactness of Titanium Sponge
Wang Cong, Yang Yangjun, Li Kaihua, Gu Lili
2015, 36(3): 11-15. doi: 10.7513/j.issn.1004-7638.2015.03.003
Abstract(71) PDF(1)
Abstract:
The optimal experiments for reducing compactness of titanium sponge were carried out,and the influences of feeding speed,reaction temperature,liquid height and feeding way on the compactness of titanium sponge were studied. The results show that the average barrel rate of titanium sponge can reach t...
Study on Vanadium Precipitation from Solution Containing High Concentration Sodium Vanadate by Hydrolysis
Ying Zhaoqian, Guo Jike, Chen Xiangquan, Fu Zibi
2015, 36(3): 16-20. doi: 10.7513/j.issn.1004-7638.2015.03.004
Abstract(129) PDF(9)
Abstract:
Process of vanadium precipitation by hydrolysis is closely related to the properties of vanadiumcontaining solution such as the content of impurities,concentration of vanadium species,temperature and pH value of the solution. Vanadium pentoxide with purity > 99.5% satisfying the application requi...
Application of Vanadium and Titanium
Kinetics of Photo-catalytic Degradation of Methyl Orange by W,N-TiO2/SiO2/Fe3O4 Magnetic Photocatalyst
Li Xue, Zhang Yan, Zhang Ying, Jin Ze, Liu Yunyi
2015, 36(3): 21-25. doi: 10.7513/j.issn.1004-7638.2015.03.005
Abstract(67) PDF(1)
Abstract:
W,N-TiO2/ SiO2/ Fe3O4 magnetic photocatalyst was prepared by low temperature sol-gel method,and its adsorption and catalytic degradation of methyl orange in organic wastewater respectively during the dark reaction and photoreaction was studied. Through degradation of methyl orange with different con...
Influence of Rutile Nano-TiO2 on Ultraviolet Resistance of Paint
Wu Jianchun, Lu Ruifang
2015, 36(3): 26-29. doi: 10.7513/j.issn.1004-7638.2015.03.006
Abstract(68) PDF(2)
Abstract:
Rutile nano-titanium dioxide was modified by surfactant to improve its dispersion in organic solvents. The modified nano-titanium dioxide was respectively used in furniture paint,anticorrosive paint and automotive paint. The ultraviolet resistance of the paints was achieved by detecting the color di...
Study on VC Reinforced Iron Matrix Surface Composite Camshafts Fabricated by Cast-sintering
Ding Yichao
2015, 36(3): 30-34. doi: 10.7513/j.issn.1004-7638.2015.03.007
Abstract(76) PDF(1)
Abstract:
surface composite camshaft was prepared by casting and powder metallurgy,and the microstructure of this surface composite material was analyzed by XRD,SEM and EDS. The results show that the surface composite layer is VC particle reinforced iron matrix composite,and the composite has a good metallurg...
Effects of Interlayer Annealing Temperature on the Thermochromic Properties of VO2/TiO2 Thin Film
Zhang Yubo, Miao Jingguo, Li Zhihong, Huang Wanxia
2015, 36(3): 35-40. doi: 10.7513/j.issn.1004-7638.2015.03.008
Abstract(49) PDF(1)
Abstract:
TiO2 interlayer was deposited on the mica substrate,and the VO2 film was fabricated on the TiO2 interlayer under UV light irradiated. Video-based contact angle measuring device was used to analyze the hydrophilicity of the TiO2 interlayer. XRD,FTIR and UV-vis were used to analyze the microstructure ...
Resources Environment and Energy Saving
Modification of Extracted Vanadium Tailings at High Temperature
Tang Hongjian, Zhang Li, Sun Zhaohui, Xian Yong, Yu Bin
2015, 36(3): 41-44. doi: 10.7513/j.issn.1004-7638.2015.03.009
Abstract(63) PDF(2)
Abstract:
By X-ray diffraction (XRD) and scanning electron microscopy (SEM),the process mineralogy of modified and unmodified extracted vanadium tailings,especially the influences of mineralogical characteristics of iron (Fe) and vanadium (V) on the reduction,were studied in this paper. The effects of carbon ...
Recycle of Waste Water from Vanadium Precipitation by Ammonium Carbonate
Wang Jun, Sun Zhaohui, Liu Jiayuan, Fu Zibi, Su Yi
2015, 36(3): 45-48,61. doi: 10.7513/j.issn.1004-7638.2015.03.010
Abstract(72) PDF(6)
Abstract:
In view of the present situation that the existing industrial technology for vanadium precipitation is not suitable for the carbonated leachate of vanadium slag with high content of calcium and phosphorus,the process of precipitating vanadium by ammonium carbonate ((NH4)2CO3) was adopted for that le...
Technical Review
Improvement of Vanadium Extraction from Extracted Vanadium Residue in China
Meng Lipeng, Zhao Chu, Wang Shaona, Du Hao, Zheng Shili, Zou Xing
2015, 36(3): 49-56. doi: 10.7513/j.issn.1004-7638.2015.03.011
Abstract(71) PDF(4)
Abstract:
The composition,phase and morphology of vanadium-bearing tailings from Pan Steel and Cheng Steel were studied in this paper. Combining with the previous studies by others,the valences and possible phases of vanadium in the residue were obtained. By the induction of the research progress of extractin...
Ferrous Metallurgy and Materials
Mineralogical Characteristics of Sulfide in Hongge Vanadium Titano-magnetite
Luo Jinhua, Wu Zhaoyu, Li Junhan, Wu Eenhui, Liao Xianjie, Tang Rui, Yang Shaoli
2015, 36(3): 57-61. doi: 10.7513/j.issn.1004-7638.2015.03.012
Abstract(56) PDF(2)
Abstract:
In this paper mineralogical characteristics of sulfide in vanadium titano-magnetite of Panzhihua Hongge area,Sichuan province had been extensively investigated by the methods of optical microscope,SEM,EMPA,XRF etc. The observation results reveal that metal (Co,Ni,Cu,Fe,etc) sulfide-based pyrrhotite ...
Air Humidification Performance of the Sintered Test
He Mugang, Jiang Dajun, Song Jian, Yi Kai, He Xuan, Guo Gang
2015, 36(3): 62-66. doi: 10.7513/j.issn.1004-7638.2015.03.013
Abstract(78) PDF(1)
Abstract:
In order to explore the effect of air humidification on sintering performance of vanadium-titanium magnetite concentrate,sinter layer surface air humidification test had been carried out in the laboratory. From the experimental results it is found out thatspraying 0.4% water after 18 minutes of the ...
Mineralogical Structure of Vanadium-titanium Sinter Produced by Acid Pellets and Alkaline Materials Mixed Sintering
Ding Haichao, Li Fumin, Sun Yanqin, Cheng Shujun, Lü Qin, Huang Honghu
2015, 36(3): 67-72. doi: 10.7513/j.issn.1004-7638.2015.03.014
Abstract(69) PDF(1)
Abstract:
Vanadium-titanium sinter produced by acid pellets and alkaline materials mixed sintering of thick material layer is a new sintering process where high alkalinity and acidity ball are made from the upcoming vanadium-titanium iron concentrate powder and then mixed with fuel and returned ore for furthe...
Effect of MgO Content on the Quality of Low-titanium Sinter
Liu Ran, Li Hongwei, Li Haojie, Li Yanjiang, Liu Song
2015, 36(3): 73-77. doi: 10.7513/j.issn.1004-7638.2015.03.015
Abstract(54) PDF(1)
Abstract:
In this paper the effects of different Mg O content on resulting sinter quality were investigated. The results show that with Mg O content increasing,sinter indexes are affected to different degrees. Appropriate Mg O content benefits to the yield,drum strength and the metallurgical properties of sin...
Phase Analysis and Phosphorus Transformation in Sintering Gasification Dephosphorization Process
Zhang Wei, Wang Hui, Xing Hongwei, Tian Tielei, Wu Lizhong, Liu Fan
2015, 36(3): 78-82. doi: 10.7513/j.issn.1004-7638.2015.03.016
Abstract(56) PDF(2)
Abstract:

In order to explore the transformation mechanism of phosphorus during sintering process,minisintering experiment was carried out based on the thermodynamic calculation,and the component and phase of calcined product were analyzed. The results show that the dephosphorization ratio reached up to 20% i...

Effect of Slag and Hot Metal Compositions on Arsenic Content in Molten Iron
Lü Qing, Huang Honghu, Liu Xiaojie, Qie Yana, Ding Haichao
2015, 36(3): 83-87. doi: 10.7513/j.issn.1004-7638.2015.03.017
Abstract(69) PDF(2)
Abstract:
The impact of slag basicity,initial sulfur content and temperature of hot metal on the arsenic content in hot metal were studied in this paper.Results show that arsenic content increases with basicity (% CaO)/(% SiO2). When basicity exceeds 1.16 arsenic content changes slowly. Increasing slag basici...
Study on Cleanliness of Q235B Steel under the Conditions of Substituting Iron Ore for Partial Scarp in Converter
Wang Jiajie, Peng Qichun, Zhou Mingwei, Peng Mingyao, Bi Jianmin
2015, 36(3): 88-92. doi: 10.7513/j.issn.1004-7638.2015.03.018
Abstract(50) PDF(2)
Abstract:
Oxygen and nitrogen analyzer,metallographic examination,SLIME,SEM and EDS techniques had been used to study the cleanliness of plain carbon structural steel Q235B produced via KR-BOF-ArCC process under the conditions of substituting iron ore for partial scarp in converter. The results show that the ...
Hydraulics Simulated Experimental Study on a Two Strand Tundish at Different Flow Rate
Liu Hui, Wang Jia, Liang Jian, Zhou Li
2015, 36(3): 93-98. doi: 10.7513/j.issn.1004-7638.2015.03.019
Abstract(68) PDF(1)
Abstract:
A 1∶2.5 hydraulics modle experiments were conducted to simulate a 72 t two- strand slab continuous casting tundish. The impact of using flow control devices and turbulence inhibitor on the flow field in tundish at different flow rate of flow had been investigated in order to gain the best combinatio...
Bubbles Separation Behaviour of Cr12N Steel during High Pressure Solidification Process
Wang Shuhuan, Liu Jimeng, Zhao Dingguo, Huang Kai, Li Weifeng
2015, 36(3): 99-103. doi: 10.7513/j.issn.1004-7638.2015.03.020
Abstract(63) PDF(2)
Abstract:
Considering the some bubbles separation during smelting Cr12N ferritic stainless steel,the ingot had been examined by an optical microscope,and the optical image had been analysed by using a microimage analysis & process software. It is found out that when the melting pressure is 0.6 MPa and sol...
HAZ Toughness in Vanadium-microalloyed Steels
Fahlström K, Hutchinson B, Komenda J, Lindh-Ulmgren E, Martin D, Beladi H
2015, 36(3): 104-110. doi: 10.7513/j.issn.1004-7638.2015.03.021
Abstract(49) PDF(2)
Abstract:
The present paper refers to the situation of single-pass welds in structural steels and,in particular,the mechanical properties and microstructures of the coarse grained heat affected zones (CGHAZs) that exist in the parent material close to the fusion line. Frequently,the toughness in these areas i...
Effects of RH Refining Deoxidation Method on the Non-metallic Inclusions in Non-oriented Si Steel Sheets Containing Al
Lü Xuejun, Zhang Feng, Chen Xiao
2015, 36(3): 111-115. doi: 10.7513/j.issn.1004-7638.2015.03.022
Abstract(84) PDF(4)
Abstract:
The oxygen element is harmful to Si steel,and the RH refining deoxidation method has an important effects on oxygen concentration. Based on the industrial non-oriented Si steel containing Al,the effects of RH refining deoxidation method on non-metallic inclusions was investigated. The results show t...
Study on Structure and Property of High Grade Non-Oriented Silicon Steel Sheet via 20 mm Thin Slab
Xue Yanchun, Ma Liang, Qiu Shengtao
2015, 36(3): 116-121. doi: 10.7513/j.issn.1004-7638.2015.03.023
Abstract(58) PDF(1)
Abstract:
2.9%Si-0.77%Al non-oriented silicon steel slab had been produced by the thin slab process with a thickness of 20 mm. After hot rolling,normalizing,cold rolling and annealing,the resulting sheet had been investigated in terms of microstructure,precipitates and magnetic properties. The results show th...
Cause Analysis of Cracking for frame tube
Li Yanjie, Song Jinying, He Lixin, Gao Ying
2015, 36(3): 122-126. doi: 10.7513/j.issn.1004-7638.2015.03.024
Abstract(52) PDF(2)
Abstract:
Narrow strip steel was used to make the frame tubes. The crack occurred to Q195 when frame tubes were formed. The cause of frame tube cracking is studied by the means of scanning electron microscope,OM,EDS. The result shows that the reason of frame tube crack is Fluxes involved,silicate inclusions E...
Effect of Submicron-CeO2 Particles on the Microstructure and Performance of Low Carbon Steel
Peng Jun, Niu Liang, Wang Jian, An Lei, Guo Yong, An Shengli
2015, 36(3): 127-130. doi: 10.7513/j.issn.1004-7638.2015.03.025
Abstract(56) PDF(2)
Abstract:
Microstructure refinement is an important means to improve the performance of the steel and oxides metallurgy is an important method of refining microstructures. In this paper SEM observation and hardness measurement had been made on the as-cast and as-rolled steel with submicron-CeO2 particle addit...
2015, 36(3): 131-132.
Abstract(56) PDF(1)
Abstract: