摘要
在直径80 mm振动流化床中,研究Nd2O3超细颗粒常温条件下的流化状态,考察了粉体物性,粉体填料量和流化速度等因素对原料Nd2O3流化质量的影响。由此确定了后期高温氟化反应的最佳流化速度和初始床层高度。并探索了不同条件下NdF3产品的氟化率,实验结果表明,在600℃下反应时间30min为相对最优氟化条件。
The fluidization behavior of ultrafine powders Nd2O3 and the effects of powder＇s properties,packing state and fluidized velocity on fluidization quality have been investigated in a bed of 80 mm in diameter and the best reacted condition and initial bed height of high temperature fluorination have been determined.The optimal temperature and reaction time were 600℃ and 30 minutes respectively.
出处
《稀土》
EI
CAS
CSCD
北大核心
2012年第2期60-63,共4页
Chinese Rare Earths
关键词
流化床
细颗粒
氟化反应
氟化率
fluidized bed
fine particles
fluoridation
fluorination rate
