2017 Vol. 38, No. 3

2017, 38(3): 1-7.
Abstract(56) PDF(16)
Abstract:
2017, 38(3): 163-164.
Abstract(52) PDF(1)
Abstract:
Separating and Extracting of Vanadium and Titanium
Experimental Study on Separation of Iron and Titanium from Vanadium-titanium Iron Concentrate by Hydrochloric Acid Leaching at Atmospheric Pressure
Wu Enhui, Hou Jing, Li Jun, Huang Ping
2017, 38(3): 8-12. doi: 10.7513/j.issn.1004-7638.2017.03.001
Abstract(123) PDF(9)
Abstract:
The elements of vanadium-titanium iron concentrate were selectively leached by hydrochloric acid at atmospheric pressure,and the effects of liquid-solid ratio,leaching temperature and time,and hydrochloric acid concentration on the leaching rate of iron and titanium dioxide (TiO2) were studied. Furt...
Preparation of Ammonium Polyvanadate Using High Concentration of Vanadium Solution Containing Sodium
Guo Jike
2017, 38(3): 13-20. doi: 10.7513/j.issn.1004-7638.2017.03.002
Abstract(174) PDF(12)
Abstract:
In order to resolve the technological problems of precipitation of ammonium polyvanadate (APV) by ammonium salts under acid conditions using high concentration of sodium-containing vanadium solution,the dripping method was adopted to prepare APV under acid conditions with the high concentration of s...
Hydrothermal Synthesis of Titanium Dioxide and Its Photocatalytic Properties Evaluation
Pu Hong
2017, 38(3): 21-24. doi: 10.7513/j.issn.1004-7638.2017.03.003
Abstract(251) PDF(4)
Abstract:
Titanium dioxide (TiO2) photo-catalyst was prepared via hydrothermal route from industrial titanyl sulfate solution. The obtained samples were characterized by SEM,FT-IR,XPS,nitrogen absorption-desorption test and the photocatalytic properties of the photo-catalyst were also evaluated. The results i...
Selection of Fatty Acids as Reagent for Vanadium Removal from Crude Titanium Tetrachloride
Du Ming
2017, 38(3): 25-29. doi: 10.7513/j.issn.1004-7638.2017.03.004
Abstract(95) PDF(3)
Abstract:
The experiments of refining titanium tetrachloride using different fatty acids were carried out,and the samples of purified titanium tetrachloride and tailing slag for vanadium removal were analyzed.The results show that with saturated fatty acids as reagent the vanadium removal efficiency is lower ...
Study on Particles Residence Time Distribution in Low-temperature Chlorinator
Li Dongqin
2017, 38(3): 30-33. doi: 10.7513/j.issn.1004-7638.2017.03.005
Abstract(75) PDF(3)
Abstract:
Based on the cold model of low-temperature chlorination furnace for Pangang titanium-bearing blast furnace slag,the conductivity method was employed to research the pulse tracer particles,and the effects of internal baffles,feed rate and apparent gas velocity on the particles Residence Time Distribu...
Effect of Sand Milling Times on the Quality of TiO2 Initial Product
Wang Haibo, Chen Xinhong, Wu Xiaoping, Wang Bin, Luo Zhiqiang
2017, 38(3): 34-37. doi: 10.7513/j.issn.1004-7638.2017.03.006
Abstract(92) PDF(4)
Abstract:
The influence of sand milling times on the quality of titanium dioxide (TiO2) initial product was investigated by horizontal sand mill,using roll milling TiO2 product as raw material and zirconia beads with different sizes as grinding media. The results show that with increase of sand milling times ...
Application of Vanadium and Titanium
Study on H2TiO3-lithium Exchanger Synthesized by Precipitation-peptization Method
Yao Qianqian, Zhou Jiabei, Zhang Liyuan, Yang Shuang, Zhou Dali
2017, 38(3): 38-44. doi: 10.7513/j.issn.1004-7638.2017.03.007
Abstract(171) PDF(7)
Abstract:
A novel inorganic precipitation-peptization method was proposed to synthesize Li2TiO3 in this work.TiOSO4 and CH3COOLi were employed as lithium and titanium sources respectively,and H2O2 was used as complexing agent resulted in titanium-lithium sol system via precipitation-peptization method,and the...
Experimental Study of Vacuum Electromagnetic Levitation Refining of TiAl Intermetallic Alloy
Ma Lan, Yang Shaoli, Piao Rongxun, Zhong Kaiwen
2017, 38(3): 45-51. doi: 10.7513/j.issn.1004-7638.2017.03.008
Abstract(62) PDF(1)
Abstract:
Refining of crude Ti Al based alloy which was obtained through aluminothermic reduction of acid-soluble titanium slag in Panzhihua was carried out using vacuum electromagnetic levitation melting furnace. Phase composition,distribution of alloy elements in micro area,microstructure and impurities con...
Preparation of Li4Ti5O12/C Composite and Its Application to Anode Material of High Rate Lithium-ion Battery
Meng Weiwei
2017, 38(3): 52-56,77. doi: 10.7513/j.issn.1004-7638.2017.03.009
Abstract(125) PDF(4)
Abstract:
The Li4Ti5O12/C (LTO/C) composite with excellent rate performances was synthesized via a facile hydrolysis reaction followed by a low temperature heat treatment. In the hydrolysis process,the introduction of cetyltrimethylammonium bromide (CTAB) as a surfactant can significantly improve the rate per...
Effect of WC Powder Size on the Microstructure and Properties of Ti(C,N)-based Cermets
Wu Yuemei, Li Bin, Wang Xinling, Xiong Ji
2017, 38(3): 57-62. doi: 10.7513/j.issn.1004-7638.2017.03.010
Abstract(59) PDF(1)
Abstract:
Mo2C is normally added to improve the wettability between Ti (C,N) and Ni in Ti (C,N)-based cermets. Due to the increasing price of Mo2C,much attention has been paid to Ti (C,N)-based cermets with WC addition. In this paper,the effect of WC powder size on the microstructure and properties of Ti(C0.7...
Influence of Welding Parameters on Microstructure and Mechanical Performance of Gr1 Titanium Plate
Zang Wei, Zhang Hangyong, Yuan Xueting, Guo Longchuang, Guo Xinhu
2017, 38(3): 63-66. doi: 10.7513/j.issn.1004-7638.2017.03.011
Abstract(55) PDF(1)
Abstract:
Gr1 titanium plate is commonly used for explosion metal clad plates. Great area plate needs to be tailor-welded. In order to ensure plasticity of Gr1 titanium plate satisfy requirements for subsequent explosive cladding process,different welding parameters and wire-feed modes are chosen for tailor-w...
Effects of Solidification Mode on Electrochemical and Hydrogen Storage Properties of Vanadium-based Alloy
Wu Ling
2017, 38(3): 67-70. doi: 10.7513/j.issn.1004-7638.2017.03.012
Abstract(64) PDF(1)
Abstract:
The vanadium-based hydrogen storage alloy V3TiNi0.56Cr0.4 was respectively prepared by solidification modes of air cooling,water cooling and liquid nitrogen cooling,and the electrochemical and hydrogen storage properties of the obtained alloy were tested and analyzed. The results show that solidific...
Resources Environment and Energy Saving
Study on the Flotation Separation of Modified Ti-bearing Blast Furnace Slag
Zhang Shiqiu, Wang Weiqing, Zheng Yu, Ren Pengkun, Yan Wu, Deng Jie
2017, 38(3): 71-77. doi: 10.7513/j.issn.1004-7638.2017.03.013
Abstract(86) PDF(5)
Abstract:
In order to achieve the high-efficiency recovery of titanium component in the titanium-blast furnace slag,the slag had been modified in terms of its chemical compositions and treated through the process of high temperature selective precipitation. The maximum crystal size and quantity of the resulte...
Experimental Study on the Preparation of Porous Ceramic with Vanadium Tailings by Casting Method
Li Liang, Peng Fuchang
2017, 38(3): 78-82. doi: 10.7513/j.issn.1004-7638.2017.03.014
Abstract(55) PDF(1)
Abstract:
Vanadium slag can be utilized as the main raw material,binder,clay,water reducing agent and pore forming agent has been added for,preparing vanadium slag porous ceramics via injection molding process. The obtainedporous ceramic filter can be used in chemical industry,furnace insulation and building ...
Ferrous Metallurgy and Materials
Parameters Optimization of Composite Sintering Titanium Magnetite Concentrate
Rao Jiating, Hu Peng, Qin Xingguo, Lin Wenkang
2017, 38(3): 83-87. doi: 10.7513/j.issn.1004-7638.2017.03.015
Abstract(58) PDF(1)
Abstract:
Composite sintering process had been investigated on the high titanium magnetite concentrate in order to address the issues of low-strength,high-return-rate and low-yield of sinter,adopted. It is found out that mix moisture has the greatest effect on the integrated index,followed by height of materi...
Study on the Influence of Basicity and Roasting Temperature on the Strength of the Pellets
Pan Xiangyang, Long Yue, Xu Chenguang, Ma Baoliang, Dou Guanxiong, Zhao Bo
2017, 38(3): 88-93. doi: 10.7513/j.issn.1004-7638.2017.03.016
Abstract(150) PDF(2)
Abstract:
The Tangshan local magnetite and high calcium powder mixing and balling,thermodynamic simulation with X-ray diffraction analysis,high temperature thermal analysis instrument,while the use of Fact Sage,studying on laws of basicity and temperature effects on the strength of the pellets. The results sh...
Forecast for Low Temperature Reduction Disintegration Properties of Vanadium-titanium Sinter Based on BP Neural Network
Xin Zicheng, Li Jie, Liu Weixing, Yang Aimin, Zhang Yuzhu, Wang Lili
2017, 38(3): 94-99. doi: 10.7513/j.issn.1004-7638.2017.03.017
Abstract(62) PDF(1)
Abstract:
In order to improve the RDI+3.15 of vanadium-titanium sinter,BP neural network algorithm was applied to the prediction of low temperature reduction degradation of vanadium-titanium sinter. The samples of the indicator data were divided into input samples and output samples,the input samples includes...
Effect of Grinding Mode on Hematite Pellet Properties
Jiao Guoshuai, Ju Jiantao, Ma Jie, Xing Xiangdong
2017, 38(3): 100-105. doi: 10.7513/j.issn.1004-7638.2017.03.018
Abstract(89) PDF(3)
Abstract:
The main purpose of this paper is to solve the problem of how to meet the high requirement of hematite pullets process by simulation of the grate-klin process,hematite pullets were researched by different pressed ways. The results showed that it has a poor preheating properties. The compression stre...
Influence of TiO2 on Mineral Structure and Metallurgical Properties of Blast Furnace Slag
Han Kaibin, Liu Lei, Li Zhiwei, Han Xiuli
2017, 38(3): 106-110. doi: 10.7513/j.issn.1004-7638.2017.03.019
Abstract(66) PDF(1)
Abstract:
The mineral structure of blast furnace slag with different mass percent of TiO2 (7%~16%)was studied by means of polarization microscope. The results indicate that the microstructure of blast furnace slag is mainly porphyritic or porphyritic-like texture. Phenocryst minerals mainly consist of the ric...
Quantitative Research on Cleanliness of Unsteady Casted IF Steel Slabs
Xiao Pengcheng, Zhu Liguang, Liu Haichun, Tian Fengji, Liu Zengxun, Li Meng
2017, 38(3): 111-117139. doi: 10.7513/j.issn.1004-7638.2017.03.020
Abstract(78) PDF(1)
Abstract:
By means of T[O] and [N]measurement,metallographic observation and sample-electrolyzing,the cleanness of normal slabs and unsteady cast slabs of IF steel produced in a plant had been compared. Normal slabs have very high cleanness,where the w(T[O]) is 11 × 10-6,w(N) is 18 × 10-6 and the mean number ...
Simulation Optimization Research of Tundish under Different Pull Speeds
Sun Hua, Sun Yanhui, Huang Bo, Zhang Xichao, Bai Xuefeng
2017, 38(3): 118-123. doi: 10.7513/j.issn.1004-7638.2017.03.021
Abstract(68) PDF(1)
Abstract:
In this paper,asymmetric tundish of three-strand casting construction model for different speeds and the existence of dam had been investigated. In order to further improve the production capacity of the tundish of electric furnace factory,a water simulation and numerical simulation scheme was desig...
Research on Tempering Performance of Seismic Steel with Yield Strength 550 MPa
Zhang Liqin, Tong Mingwei, Wu Kaiming
2017, 38(3): 124-129. doi: 10.7513/j.issn.1004-7638.2017.03.022
Abstract(74) PDF(1)
Abstract:
Effects of tempering temperature on microstructure,precipitation and mechanical properties of Seismic building steel with yield strength of 550 MPa produced by TMCP,were researched by optical microscope,TEM and mechanical properties test. The results show that with the increase of tempering temperat...
Effects of Controlled Rolling and Cooling Technology on Microstructure and Performance of 900 MPa Grade Hot-rolled Strip Steel
Li Zhengrong
2017, 38(3): 130-134. doi: 10.7513/j.issn.1004-7638.2017.03.023
Abstract(58) PDF(1)
Abstract:
Through measurement of dynamic CCT curve and experiment of controlled rolling and cooling in laboratory for 900 MPa grade hot-rolled strip steel,phase transformation during continuous cooling process and relationship of microstructure,precipitate and mechanical properties at various coiling temperat...
Effect of Titanium on Austenite Dynamic Recrystallization in Low Carbon Mn-Ⅴ Steel
Ke Xiaotao
2017, 38(3): 135-139. doi: 10.7513/j.issn.1004-7638.2017.03.024
Abstract(58) PDF(1)
Abstract:
The austenite grain growth behavior and dynamic recrystallization behavior of low carbon Mn-Ⅴ steel were studied by Gleeble thermal simulation machine,TEM,SEM and quantitative analysis. The results show that the stable titanium carbonitride in steel containing titanium can prevent the effect of aust...
Experimental Study on Inclusions Control of Resulfurized Free Cutting Steel
Yu Zhe, Liu Chengjun, Min Yi, Jiang Maofa
2017, 38(3): 140-144. doi: 10.7513/j.issn.1004-7638.2017.03.025
Abstract(67) PDF(1)
Abstract:
In this paper,the effects of calcium treatment and magnesium treatment on characters of inclusions in resulfurized free cutting steels were studied by high temperature experiments. The results show that the main types of inclusions after calcium treatment are Ca-Al-O + (Ca,Mn)S complex inclusions, (...
Effect of Vanadium Content on Properties of Semi-solid Gray Cast Iron Containing Vanadium for Drawing Dies
Cai Qun
2017, 38(3): 145-148. doi: 10.7513/j.issn.1004-7638.2017.03.026
Abstract(64) PDF(2)
Abstract:
The wear resistance and thermal fatigue property of semi-solid gray cast iron samples containing vanadium for drawing dies with different contents of vanadium were tested and analyzed. The results show that with increasing vanadium content from 0 to 1.25%,the wear volume of the sample first decrease...
Analysis of Cracking Reasons in the Cold Heading Process of Q195 Steel
Jiao Shuai, Sun Yanhui, Zhao Yong, Li Xiaobin
2017, 38(3): 149-155. doi: 10.7513/j.issn.1004-7638.2017.03.027
Abstract(122) PDF(5)
Abstract:
The surface quality,crack morphologies,microstructures,oxygen and nitrogen content and non-metallic inclusions of Q195 cold heading steel were studied by a set of analysis techniques,such as acid washing,optical microscopy,scanning electronic microscope (SEM),and energy dispersive X-ray spectroscopy...
Study on the Mechanism of Improving the Carbides in H13 Steel by Trace Magnesium
Zhou Defu, Chang Lizhong, Zheng Fuzhou, Chen Jiashun
2017, 38(3): 156-162. doi: 10.7513/j.issn.1004-7638.2017.03.028
Abstract(58) PDF(1)
Abstract:
H13 hot working die steel belongs to medium carbon steel,which have high contents of Cr,Mo and V. Therefore,during solidification these carbide forming elements will be separated into a large number of network carbide,which is difficult to be completely eliminated by subsequent heat treatment. Thust...