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decreased the most when CaCl2 was added. X-ray diffraction(XRD) analysis showed that calcium compounds could change the reduction process of ilmenite in VTC. The phase compositions of the reduction products......
">A new concept for producing highly pure Ti metal powder from ilmenite(FeTiO3) is proposed in this article. Titanium nitride(TiN)or titanium oxycarbonitride(TiOxCyNz) could be synthesized in the first step......
, Shenyang 110004) Abstract: The thermodynamic of the system of rutile, ilmenite and aluminum powder was calculated. The results show that Al, Ca, Mg, Ba, Li and Na can be used as reducing agent......
(ilmenite Titano-magnetite, ilmenite and rutile). In spider diagrams, light rare earth elements (LREE) are enriched compared to heavy rare earth elements (HREE), and HFS elements (Ti, Nb) show negative... containing TiO2, including ilmenite, rutile and Titano-magnetite. Reduction of Al2O3, FeO, MgO and CaO is attributed to subtraction of hornblende. It can be concluded that during fractional crystallization......
30MVA直流电弧炉冶炼钛渣配碳比研究韩丰霞1,雷霆2,周林3,黄世弘1,吕改改11. 昆明理工大学冶金与能源工程学院2. 昆明冶金高等专科学校3. 昆明冶金研究院摘 要:工业生产中,为生产出合格的钛渣必须加入适量的碳作为还原剂,将高价氧化物还原为低价氧化物.云南某公司30 MVA大型密闭直流电弧炉(DC炉)生产运行过程中,通过控制无烟煤用量与钛精矿用量之比--配碳比(ratio of anthracite to ilmenite,简称AIR),使生产在输入能量一定,钛精矿成分稳定的条件下力求获得良好的产品品质.生产通过中空石墨电极将钛精矿和无烟煤加入DC炉内,熔炼温度控制为1973~2023 K;熔炼输入功率为15 MVA;入炉钛精矿粒度为0.1~0.33 mm;入炉无烟煤粒径为5~25 mm的比例......
Isothermal reduction of titanomagnetite concentrates containing coalTu Hu1,2,Xue-wei Lü1,Chen-guang Bai1,Gui-bao Qiu11. College of Materials Science and Engineering, Chongqing University2. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology摘 要: dioxide(TiO2), and the titaniferous magnetite and ilmenite are the main minerals, whose mass fractions are 63.81% and 15.02%, respectively. In addition, there are a small amount of gangue minerals... interlocking with micro-fine ilmenite particles in a state of lattice or fine vein, and parts of the two minerals are also associated with some gangue minerals. The main reasons for the low grade......辽宁朝阳地区某钒钛磁铁矿中铁精矿的工艺矿物学研究
来源： 《中南大学学报(自然科学版)2020年第10期》——薛向欣 陈汪兴 梁海军 高子先
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老挝铝土矿中铁矿物微观结构及反应特性的研究仓向辉1(1.河南省郑州市铝业股份有限公司郑州研究院)摘 要:利用扫描电镜及能谱仪对铝土矿中铁矿物微观结构及成分进行分析,着重研究铝土矿中赤铁矿,针铁矿,钛铁矿等矿物的存在方式及分布特征.结果表明,针铁矿较多时明显影响赤泥的沉降速度,碳加入量大于10%及高温溶出能显著改善老挝矿的溶出效果,赤铁矿不与矿石中各组分和铝酸的溶液反应而直接进入赤泥中.关键词:微观结构； 铁矿物； 反应特性； 铝土矿......
reduction and vacuum smelting of panzhihua ilmenite concentrate HUANG Run, L Xuewei, ZHANG Kai, SONG Bing, BAI Chenguang (School of Materials Science and Engineering, Chongqing University, Chongqing 400044..., the pre-reduced ilmenite is vacuum smelting in a carbon tube furnace. The iron vapor is volatilized. The main phases of the smelted samples are Ti2O3, TiO and little iron metal, the grade of which can......
