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钛精矿球磨活化微波还原试验
引用本文:李雨,雷鹰,彭金辉,张利波,张泽彪,郭胜惠.钛精矿球磨活化微波还原试验[J].钢铁钒钛,2010,31(4).
作者姓名:李雨  雷鹰  彭金辉  张利波  张泽彪  郭胜惠
作者单位: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;
基金项目:国家重点基础研究发展计划-973计划项目
摘    要:研究攀枝花低品位钛精矿的球磨活化-微波还原。采用激光粒度及X衍射研究不同球磨条件下钛铁矿的粒度和物相变化并进行分析,结果表明磨矿活化使矿物颗粒逐渐减小、特征峰宽化、晶粒变细;研究了活化物料的升温和还原行为,并对还原产物微观形貌和物相进行分析,表明活化物料有良好的微波吸收性能和还原效应。证实在反应过程中存在"热点"。球磨8 h的混合物料在温度900℃、反应时间30 m in条件内金属化率超过90%。

关 键 词:钛精矿  球磨活化  微波还原  还原效应

Ball Milling Activation and Microwave Reduction of Titanium Concentrate
Li Yu,Lei Ying,Peng Jinhui,Zhang Libo,Zhang Zebiao,Guo Shenghui.Ball Milling Activation and Microwave Reduction of Titanium Concentrate[J].Iron Steel Vanadium Titanium,2010,31(4).
Authors:Li Yu  Lei Ying  Peng Jinhui  Zhang Libo  Zhang Zebiao  Guo Shenghui
Affiliation:Li Yu,Lei Ying,Peng Jinhui,Zhang Libo,Zhang Zebiao,Guo Shenghui(Key laboratory of Unconventional Metallurgy of Ministry of Education,Shool of Materials and Metallurgical Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China)
Abstract:The ball milling and followed microwave reduction of Panzhihua low grade titanium concentrate were investigated.The grain size and phase transformation of ilmenite were characterized by LPS and XRD TG techniques under different ball milling conditions.The results show that the ore particle,ilmenite crystal grains were fined and characteristic crest widened after milled.The behavior of the rise of temperature and reduction of the activated mixed mineral were studied,and the morphology and phase component of ...
Keywords:titanium concentrate  milling activation  microwave reduction  reduction effect  
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