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Reduction mechanism of natural ilmenite with graphite WANG Yu-ming(王玉明)1, 2, YUAN Zhang-fu(袁章福) 1, 3, GUO Zhan-cheng(郭占成)1, TAN Qiang-qiang(谭强强)1, LI Zhao-yi(李肇毅)2, JIANG Wei-zhong(姜伟忠)2 1...: Reduction of Bama ilmenite concentrate containing 49.78% TiO2 and 27.96% total Fe by graphite was studied using thermogravimetric analysis system under argon gas ambient from 850 to 1 400 ℃. The reduction......
Trans. Nonferrous Met. Soc. China 22(2012) 1232-1238 TiO2 nanoparticles prepared by hydrochloric acid leaching of mechanically activated and carbothermic reduced ilmenite TAO Tao1, CHEN Qi-yuan1, HU... milling, carbothermic reduction and hydrochloric acid leaching was proposed for the preparation of nanosized synthetic rutile from natural ilmenite. The ball milling was employed to grind ilmenite......
钛铁矿湿法生产人造金红石新工艺蒋伟1,蒋训雄2,汪胜东2,范艳青2,王海北3,蒋开喜2,冯林永3,张登高3,齐斌涛4(1.北京市北京矿冶研究总院 2.北京矿冶研究总院,北京 1000703.北京矿冶研究总院,北京 1000444.重钢集团矿业有限公司太和铁矿,四川西昌 615041)摘 要:针对攀西地区钛铁矿的特点即储量大,品位低,钙镁杂质含量高,提出钛铁矿湿法生产人造金红石的新工艺:钛铁矿细磨-多级逆流浸出.解决了盐酸再生与再生酸循环利用的衔接问题.采用低浓度盐酸多级浸出可得到TiO2品位大于94%的人造金红......
钛精矿碳热还原制备焊条药皮试验雷鹰1,李雨1,彭金辉1,李玮1,郭胜惠1(1.云南省昆明市昆明理工大学材料与冶金工程学院非常规冶金教育部重点实验室)摘 要:对钛精矿碳热还原制备焊条药皮进行研究,在氧化焙烧温度850~900℃,复合添加剂配量3%~5%,还原焙烧温度1 100~1 500℃,焙烧时间240~270min条件下获得焊条药皮原料--还原钛铁矿,其TiO2大于52%,FeO小于5%,C,S,P等有害元素含量小于0.03%.采用XRD,SEM,EDS及TGA等表征方法对钛铁矿还原前后的物相,形貌,成分等变......
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EFFECT OF THE HEAT OF REACTION DURING THE ALUMINOTHERMIC PROCESS OF ILMENITE Y.Z.Lan1,R.W.Smith2,J.Liu1 (1.Materials Department, Yunnan University, Kunming 650091, China;2.Metallurgical.... Therefore, the heat of reaction in the aluminothermic process of ilrnenite should be strictly controlled to -2584.24K. J/kg. Key words:ilmenite; Al reduction; the heat of reaction; [全文内容正在添加中] ......
Effect of the Formation of CNTs on the Reduction of Ilmenite王升高1,徐卫国21. Provincial Key Laboratory of Plasma Chemistry and Advanced Materials,Wuhan Institute of Technology2. Department of Orthopaedics,Tongji Hospital Affiliated to Tongji Medical College,Huazhong University of Science and Technology摘 要:The reduction process of ilmenite by hydrogen......
Determination of La/CeO2 content in ilmenite electrode coatingYong-Huan Guo1,Xi-Ying Fan1,2,Liang Zhang1,Hui Fan1,Yi-Jun Xu11. College of Mechanical and Electrical Engineering, Jiangsu Normal University摘 要:The ilmenite welding electrode has advantages of low cost and excellent welding technological properties.However, the welding quality is affected......
Removal of iron from ilmenite by KOH leaching-oxalate leaching methodWANG Yuanboa, b, QI Taob, CHU Jinglongb, and ZHAO Weib a Graduate School of Chinese Academy of Sciences, Beijing 100039, China b... for the removal of iron from the intermediates of ilmenite leached by KOH liquor. Various parameters, such as pH, temperature, initial oxalate concentration, and illumination were investigated......