钢铁钒钛

Status and development of titanium dioxide industry in 2018

BI Sheng

2018, 39(6): 1-4.

Abstract(86) PDF(15)

Abstract:

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(210) 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（NO₃）₃·5H₂O）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 TiC_xN_1-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 TiC_xN_1-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 ...

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(147) 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（PO₄）₃/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(372) PDF(8)

Abstract:
Lithium vanadium phosphate（Li₃V₂（PO₄）₃） 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（PO₄）₃/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...

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...

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(96) 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(125) 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(668) PDF(31)

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...

2018 Vol. 39, No. 6