摘要
以钛精矿和石墨为原料,经球磨混料后通过碳热还原法制备了含铁的碳氮化钛复合粉.结合X射线衍射分析、TG-DSC热分析和SEM扫描电镜显微分析,主要研究了球磨参数对钛精矿/石墨混合粉料还原进程的影响.当球磨时间为4 h,球磨转速为450 r/min时,石墨的无定型化有利于加快还原反应进程.开始反应温度提前了360℃,失重为35%,达到了反应平台.
Fe-TiCN composite powders were prepared via carbothermic reduction of milled titanium concentrate with ilmenite and graphite as raw materials. The effect of milling parameters on the titanium concentrate/ graphite mixed powders was studied with XRD, TG-DSC and SEM analysis. When the milling time was 4 h and the milling speed was 450 r/min, amorphous state of graphite would accelerate the reduction process. The onset reaction temperature was advanced by 360 ℃ and reached platform with a total loss of 35 %.
出处
《有色金属科学与工程》
CAS
2015年第4期62-65,共4页
Nonferrous Metals Science and Engineering
基金
四川省应用基础研究项目(2014JY0132)
攀枝花市科技支撑项目(2013CY-G-7
2014CY-G-26-1)
关键词
钛精矿
球磨时间
球磨转速
还原进程
ilmenite
milling time
milling speed
reduction process
