共搜索到14341条信息,每页显示10条信息,共1435页。用时:0小时0分0秒375毫秒
; 文献标志码:A 文章编号:1672-7207(2019)03-0506-08 Reduction enhancement mechanisms of low iron grade ore-coal composite pellets by sodium... with iron ore-coal composite pellets was adopted to deal with high silicon content-low iron grade ore, and sodium salt was used to enhance the reduction process. Effects of temperature, reduction time......
of silicate minerals containing iron in deep reduction of rough concentrate from iron tailings FAN Duncheng, NI Wen, LI Jin, LI Yuan, QIU Xiajie, FU Chenghong, LI Dezhong (Key Laboratory of the Ministry... diffraction, scanning electron microscope and X-ray energy spectrum analysis were used to study generation and reduction mechanism of silicate minerals containing iron in deep reduction......
Kinetic studies on the reduction of iron ore nuggets by devolatilization of lean-grade coalChanchal Biswas1,Prithviraj Gupta1,Arnab De2,Mahua Ghosh Chaudhuri3,Rajib Dey11. Department Metallurgical..., Jadavpur University摘 要:An isothermal kinetic study of a novel technique for reducing agglomerated iron ore by volatiles released by pyrolysis of lean......
on the reduction thermodynamics of ordinary iron ore; by contrast, the literature contains few thermodynamic studies on the gas-based reduction of vanadium titano-magnetite(VTM) in mixed atmospheres of H2... indicate that VTM of an equivalent valence state is more difficult to reduce than ordinary iron ore. A reduction equilibrium diagram using the C–H–O system as a reducing agent was obtained; it clearly......
; smelting reduction; iron and copper recovery; fluoride Cite this article as: MAO Kai-xuan, LI Lei, XU Miao. Iron and copper recovery from copper slags through smelting with waste cathode carbon from... achieving full use of heat value [12]. High recovery rates of copper and iron are obtained by producing Fe-Cu alloy (iron rich alloy) using a carbothermal or aluminothermy reduction process [4, 13......
increasing only 1 % under the same reduction conditions,and the generated metallic iron grains are smaller.Phase transformation of vanadic titanomagnetite at different reduction temperatures shows...="ChDivSummary" name="ChDivSummary">The influence mechanism of vanadic titanomagnetite solid-state reduction was studied in this paper.Optical microscopy(OM),scanning electron microscope(SEM),and X-ray......
worse. Figure 7 Effect of smelting temperature on EEB of boron-rich slag 3.3.2 Reduction of B2O3 in slag If the solid carbon exists during the pyrometallurgical boron and iron separation process...-guo. New separation method of boron and iron from ludwigite based on carbon bearing pellet reduction and melting technology [J]. ISIJ International, 2012, 52(1): 45–51. [8] WANG Guang, XUE Qing-guo, SHE......
榄石或顽火辉石反应最终转变成小藤石(Mg3(BO3)2). 关键词:含硼铁精矿;同族线性规律;还原焙烧;物相演变 中图分类号:TF704.7 文献标志码:A Thermodynamic behavior of boron minerals in iron concentrate during direct reduction YU Jian... the roasting process. Key words: boron-bearing iron concentrate; homologous linear rule; reduction roasting; phase evolution 我国硼矿资源主要有硼镁石矿和硼铁矿,由于可直接利用的硼镁石矿已近枯竭,开发复杂的硼铁矿资源已迫在眉睫[1-2].辽宁翁泉沟硼铁矿石是我国特大 型硼资......
Xiaohui, CHEN Xuling, et al. Reduction of pollutant emission in iron ore sintering process by applying biomass fuels[J]. Iron and Steel Institute International, 2012, 52(9): 1580-1584. [14] Lovel R... the microstructure of sinter, which makes sintering indexes including tumbler index and productivity improve. Meanwhile, the emissions of harmful gases NOx and SOx are reduced remarkably. Key words: limonite; iron......
转底炉生产直接还原铁的工业性试验杨雪峰1,2,储满生3,姜涛1(1.湖南省长沙市中南大学资源加工与生物工程学院2.云南省昆明市昆明钢铁股份有限公司技术中心3.东北大学 材料与冶金学院,辽宁沈阳 110004)摘 要:为验证转底炉生产直接还原铁的可行性和经济性,采用云南铁矿资源组织开展了转底炉生产直接还原铁的工业性试验,共生产金属化率为79.29%的直接还原铁991.67 t.主要技术经济指标为:还原剂煤耗301 kg/t,发生炉煤耗290 kg/t,生产成本1 179.23元/t.试验结果为转底炉直接还原铁工艺......