2018 Vol. 39, No. 6

Technical Review
Status and development of titanium dioxide industry in 2018
BI Sheng
2018, 39(6): 1-4.
Abstract(86) PDF(15)
Abstract:
Separating and Extracting of Vanadium and Titanium
Study on Single and Cyclic Roasting of Vanadium Slag and Analysis of Thermodynamics and Kinetics
Xiong Kaiwei
2018, 39(6): 5-10. doi: 10.7513/j.issn.1004-7638.2018.06.001
Abstract(94) PDF(2)
Abstract:
The factors respectively influencing the single and cyclic roasting of vanadium slag during the novel calcification process for vanadium extraction were studied,and the thermodynamics and kinetics were also analyzed.The results show that the morphology of clinker by single calcination with lump and ...
Hydrothermal Synthesis of Bismuth Vanadate Pigments by Sodium Vanadate
Wang Shaona, Du Hao, Li Lanjie, Gao Minglei, Bai Li, Zheng Shili
2018, 39(6): 11-17. doi: 10.7513/j.issn.1004-7638.2018.06.002
Abstract(209) PDF(2)
Abstract:
In this article,bismuth vanadate(BiVO4)was hydrothermally synthesized respectively using sodium vanadate produced by sub-molten salt process from vanadium slag and bismuth nitrate pentahydrate(Bi(NO33·5H2O)as raw materials.The optimal synthesis conditions for bismuth vanadate pigments were determin...
Research on Precipitation Process and Dynamics Behaviors of Ammonium Polyvanadate
WU You
2018, 39(6): 18-24. doi: 10.7513/j.issn.1004-7638.2018.06.003
Abstract(161) PDF(9)
Abstract:
The precipitation process of ammonium polyvanadate was studied in this paper.At the optimum conditions of 32~40 g/L for vanadium concentration in the solution by roasting-leaching process,0.8~1.2 of precipitant addition coefficient,above 65 ℃ of temperature before the acid addition,1.7~2.1 of precip...
Thermodynamic Calculation and Experimental Study on TiCxN1-x Prepared by Carbothermal Reduction-nitridation of Ilmenite
Zhu Kuisong, Wen Yaomin, Wang Yungang, Cao Li, Zhou Lanhua, Gou Shuyun, Sun Yan
2018, 39(6): 25-33. doi: 10.7513/j.issn.1004-7638.2018.06.004
Abstract(101) PDF(1)
Abstract:
In this study,the phase evolution and C content of the products during synthesis of TiCxN1-x by carbothermal reduction-nitridation in a vacuum furnace using ilmenite,coke powder and high purity nitrogen as raw materials were investigated via thermodynamic calculations and experiments.The phase evolu...
Numerical Simulation on Scabbing in Oxidation Reactor for Chloride Process Titanium Dioxide
Li Dongqin, Du Ming, Zhou Airan, Lu Ping
2018, 39(6): 34-40. doi: 10.7513/j.issn.1004-7638.2018.06.005
Abstract(93) PDF(4)
Abstract:
Combined with the experimental analyses and numerical simulation,the factors influencing the scarring were analyzed based on the current situation of scarring in an oxidation reactor for chloride process titanium dioxide.The results show that the high temperature gas tends to adhere on the cold wall...
Influence of Organic Treatment Agents on the Thermal Stability of Titanium Dioxide
Liu Yong, Hou Tengfei, Wu Xiaoping
2018, 39(6): 41-47. doi: 10.7513/j.issn.1004-7638.2018.06.006
Abstract(161) PDF(8)
Abstract:
The influence of several kinds of typical organic treatment agents on the thermal stability of titanium dioxide was investigated.The results exhibited that the thermal stability followed the order:polysiloxane> 3-aminopropyltriethoxysilane>trimethylolpropane>octyltriethoxysilane>triethanolamine.The ...
Application of Vanadium and Titanium
Effect of Sintering Temperature on Properties of Ti-29Nb-4Mo-13Ta-9Zr Alloy for Biomedical Applications
Wang Huanhuan, He Shiyu, Xu Ying, Cai Yanqing, Wei Ziyan
2018, 39(6): 48-54. doi: 10.7513/j.issn.1004-7638.2018.06.007
Abstract(68) PDF(1)
Abstract:
In order to improve the comprehensive mechanical properties and corrosion resistance of titanium alloy used as medical implant materials,Ti-29Nb-4Mo-13Ta-9Zr alloy was prepared by powder metallurgy.The effects of sintering temperature on the phase compositions,microstructure,compressive strength,ela...
Preparation and Characterizations of Graphene Oxide/Titanium Dioxide Composite Materials
Lai Qi, Peng Fuchang, Ma Ying, Cui Yan
2018, 39(6): 55-58. doi: 10.7513/j.issn.1004-7638.2018.06.008
Abstract(146) PDF(2)
Abstract:
Graphene oxide/titanium dioxide(TiO2-GO) composites were prepared by hydrothermal synthesis method using graphene oxide and industrial titanium liquid as raw materials.The microstructure,functional groups and phases,photocatalytic properties of the composites were analyzed by scanning electron micro...
Effect of Sintering Process on Structure and Electrochemical Performances of Li3V2(PO43/C Cathode Material for Lithium Ion Batteries
Li Nali, Tong Yanwei, Cui Xumei, Zhang Xuefeng
2018, 39(6): 59-64. doi: 10.7513/j.issn.1004-7638.2018.06.009
Abstract(369) PDF(8)
Abstract:
Lithium vanadium phosphate(Li3V2(PO43) has become a potential and promising lithium ion battery cathode material due to its high energy density,good structural stability,safety performance and low temperature performance.The Li3V2(PO43/C samples were synthesized by carbothermal reduction method fr...
Preparation of Vanadium Based Hydrogen Storage Battery Alloy by Intelligent Controlled Self Propagating
Qiao Zhigang, Zhao Junqiang
2018, 39(6): 65-68. doi: 10.7513/j.issn.1004-7638.2018.06.010
Abstract(53) PDF(1)
Abstract:
In this paper,the self propagating process for preparation of the vanadium based hydrogen storage battery alloy was controlled intelligently,and the comparison between the conventional PID control and the intelligent PID control was carried out.The results show that compared with the sample by conve...
Study on Preparation of Titanium Dioxide/Graphene Composites
Luo Jinhua, Zhang Shuli
2018, 39(6): 69-75. doi: 10.7513/j.issn.1004-7638.2018.06.011
Abstract(75) PDF(2)
Abstract:
In this paper, TiO2/graphene composites were prepared by combination of graphene powder with the calcinated TiO2 from orthotitanic acid, which was synthesized by acidolysis and neutralization of metatitanic acid followed by spray drying.The structure and morphology of the composites were characteriz...
Control Synthesis of TiO2 Tubular Nanomaterials in a Novel Solvent Thermal System
Liu Jin, Zhao Hui
2018, 39(6): 76-80. doi: 10.7513/j.issn.1004-7638.2018.06.012
Abstract(59) PDF(1)
Abstract:
TiO2 tubular nanomaterials were synthesized using a novel solvent thermal system combined with heat treatment.The effect of TiF4 concentration on morphology of the nanomaterials was investigated.The mass of the tubular structure increased with the increase of TiF4 concentration.When the concentratio...
Effects of Plasma Arc Surfacing Current on Microstructure and Wear Resistance of High Vanadium Fe-based Surfacing Coating
He Meng, Teng Yuancheng, Li Xin, Lu Weiyuan
2018, 39(6): 81-87. doi: 10.7513/j.issn.1004-7638.2018.06.013
Abstract(58) PDF(1)
Abstract:
High vanadium Fe-based surfacing coating was prepared by plasma arc surfacing technology. The effects of plasma arc surfacing current on phase composition, microstructure, hardness and wear resistance of high vanadium composite Fe-based surfacing coating were studied by scanning electron microscope(...
Extrusion Process Optimization of Magnesium Alloy Containing Titanium
Liu Zhiying, Wang Xiaofeng
2018, 39(6): 88-92. doi: 10.7513/j.issn.1004-7638.2018.06.014
Abstract(64) PDF(1)
Abstract:
In order to optimize the extrusion process of Mg-5Al-1Zn-0.8Ti magnesium alloy containing titanium, the microstructure and mechanical properties of the samples were tested and analyzed under different extrusion temperatures and extrusion speeds. The results show that with the extrusion temperature i...
Resources Environment and Energy Saving
Effect of Acid-base Modified Steel Slag on Phenol Removal from Organic Wastewater
Wan Meifang
2018, 39(6): 93-98. doi: 10.7513/j.issn.1004-7638.2018.06.015
Abstract(63) PDF(1)
Abstract:
Phenol-containing waste water has become a major issue in the water treatment industry because of its low biodegradability, intractability, and toxicity. Using steel slag as raw material, acid and alkali modified steel slags are obtained by different methods. Scanning electron microscopy(SEM) and sp...
Study on Direct Alloying of Waste SCR Catalysts
Chen Guangyu, Kang Jialong, Liu Junjie, Liu Lixia, Zhang Fang, Peng Jun, An Shengli
2018, 39(6): 99-102. doi: 10.7513/j.issn.1004-7638.2018.06.016
Abstract(64) PDF(1)
Abstract:
TiO2 in the waste SCR catalysts was reduced by aluminum, and the SiO2-TiO2-CaO-Al2O3-CaF2-Na2O slag system was selected. As the reduction process progresses, TiO2 in the slag gradually decreases and Al2O3 gradually increases. The product titanium can transfer into the iron liquid to form the iron-ti...
Ferrous Metallurgy and Materials
Effect of Magnetic Field on Reduction of Iron Oxides Containing SiO2 and CaO
Jin Yongli, Han Futie, Yu Hai, Zhao Zengwu, Zhang Jieyu
2018, 39(6): 103-109. doi: 10.7513/j.issn.1004-7638.2018.06.017
Abstract(80) PDF(1)
Abstract:
In order to investigate the effects of magnetic field on the reduction of iron oxides, 93% Fe2O3-2.5%SiO2-4.5% CaO system had been taken to carry out a constant magnetic field(CMF) test. The reduction conversion efficiency of Fe2O3, the phase composition and micromorphology of the reaction product, ...
The Impact of Basicity on the Green Ball Quality and Cruslring Strength of Pellets
Yan Zhaozhao, Lu Jianguang, Lü Qing, Zhang Shuhui, Liu Xiaojie, Sun Zhe
2018, 39(6): 110-115. doi: 10.7513/j.issn.1004-7638.2018.06.018
Abstract(99) PDF(5)
Abstract:
In this paper the impact of basicity on the green ball quality and cruslring strength of pellets had been investigated by changing the ratio of A fine powder and B mineral powder. When the basicity is increased, the incidence strength and the compression strength of the green ball gradually decrease...
Effects of MgO and Al2O3 on the Formation of Calcium Ferrite
Wang Zhixing, Shi Xuefeng, Hu Changqing, Wang Xiaolei, Yang Jintao
2018, 39(6): 116-121. doi: 10.7513/j.issn.1004-7638.2018.06.019
Abstract(94) PDF(3)
Abstract:
Calcium ferrite as binder phase of high basicity sinter has greatinfluence in the metallurgical properties of sinter. In this paper the influence of MgO and Al2O3 on the formation process was studied. According to the precious study on calcium ferrite, different amounts of MgO and Al2O3 were added t...
Influence of Slag Containing Titanium on the Corrosion of Refractories Used in Blast Furnace Hearth
Xu Renze, Zhang Jianliang, Zhao Yong'an
2018, 39(6): 122-128. doi: 10.7513/j.issn.1004-7638.2018.06.020
Abstract(69) PDF(1)
Abstract:
In order to clarify the influence of TiO2-containing slag on the corrosion of refractories used in blast furnace hearth, the corrosion behavior of blast furnace hearth refractories such as carbon composite brick and corundum brick in CaO-SiO2-MgO-Al2O3-Cr2O3-TiO2 slag was investigated by using finge...
Study on Mechanism of Gasification Dephosphorization and Influence of Next Heat Smelting Process
Zhou Chaogang, Ai Liqun, Wang Shuhuan, Guo Ruihua, Xue Yuekai, Zhao Dingguo, Li Chenxiao, Hou Mingshan
2018, 39(6): 129-136. doi: 10.7513/j.issn.1004-7638.2018.06.021
Abstract(112) PDF(3)
Abstract:
In order to solve the problem that BOF slag can not be returned back into BOF due to its high P content,the dephosphorization mechanism of gasification and influencing factors,effect of slag remaining operation and lance controlling on dephosphorization,and morphology of gasification dephosphorizati...
Research on EMS Technology for Continuous Casting 20CrMnTiH(FQ)Bloom
Li Hongguang, Zhang Xiansheng, Chen Tianming, Chen Liang, Yang Wenzhong
2018, 39(6): 137-142. doi: 10.7513/j.issn.1004-7638.2018.06.022
Abstract(56) PDF(3)
Abstract:
Continuous casting EMS technology for optimizing internal quality of 20CrMnTiH(FQ)gear steel bloom had been researched,based on the equipment of 360 mm×450 mm bloom casting machine conditions.In order to determine the position of F-EMS applied to the end of liquid core,numerical simulation calculati...
Numerical Simulation of Heat Transfer and Solidification in X80 Slab
Wang Lu, Sun Yanhui, Niu Apeng, Li Yaoguang, Chen Ruimei
2018, 39(6): 143-149. doi: 10.7513/j.issn.1004-7638.2018.06.023
Abstract(61) PDF(1)
Abstract:
The solidification mathematical model was established by using X80 steel slab.The variationof the temperature and solidification rate of the 230 mm×1 280 mm X80 pipeline steel slab was simulated during the solidification process under different continuous casting process conditions.The effects of su...
Control and Research of Inclusion in Ultra Low Carbon Steel
Liu Junshan, Ni Hongwei, Zhang Hua, Cheng Rijin
2018, 39(6): 150-154,167. doi: 10.7513/j.issn.1004-7638.2018.06.024
Abstract(124) PDF(3)
Abstract:
In order to solve the problem of large amount of inclusions in ultra-low carbon steel,these measurement such as optimizing the modifier composition,controlling the temperature of RH inlet temperature,adjusting the time interval between adding Al to deoxidize and alloying,and optimizing composition o...
Study on Production Technology and High Heat Input Welding Property of Q345 Grade Ti-oxide Metallurgy Steel
Li Yuqian, Du Qiming, Mei Donggui, Cheng Huimei
2018, 39(6): 155-161. doi: 10.7513/j.issn.1004-7638.2018.06.025
Abstract(69) PDF(3)
Abstract:
Effects of Ti-oxide metallurgy and TMCP process on the matrix mechanical properties and high heat input welding property of Q345 grade steel plate were studied under industrial conditions.Microstructures and inclusion characteristics were analyzed by OM,SEM and EPMA.High heat input welding simulatio...
Mechanism of Hydrogen Evolution Reaction of Ni-Mo-C Alloy Electrode by Electroplating
Qi Haidong, Lu Shuai, Guo Zhao, Zhang Linan, Li Yungang, Yang Haili
2018, 39(6): 162-167. doi: 10.7513/j.issn.1004-7638.2018.06.026
Abstract(195) PDF(4)
Abstract:
Ni-Mo-C alloy electrode material was prepared on pure copper by electroplating.Linear sweep voltammetry(LSV),cyclic voltammetry curve(CV) and electrochemical impedance spectroscopy(EIS) were used to investigate reaction mechanism of hydrogen evolution in 1 mol/L NaOH solution.The results show that h...
Effect of Heat Treatments on the Microstructure and Mechanical Properties of GH4169 Superalloy
Chen Jintong, Jiang Haiqing, Pan Huiyi, Xia Haidi, Yang Zirun, Jiang Qiong, Fang Leiqi
2018, 39(6): 168-172. doi: 10.7513/j.issn.1004-7638.2018.06.027
Abstract(666) PDF(30)
Abstract:
In this paper,GH4169 alloy was treated by three different heat treatment processes.The microstructure and mechanical properties of GH4169 superalloy under three different heat treatment processes were observed and studied by OM,SEM,the micro-hardness and impact test.The results show that different h...