摘要
研究了用氯化铵作为固体氯化剂来氯化稀土氧化物制取稀土氯化物的工艺,考察了焙烧温度、焙烧时间、氯化铵用量三个因素对稀土氯化物浸出率的影响,并通过正交试验确定了较合适的反应条件:焙烧温度350℃,焙烧时间100min,NH4Cl∶稀土样品为12(摩尔比),稀土的浸出率达到了90%以上。
An extraction process of rare earth which used NH_4Cl as solid chlorination agent was researched, and the effects of roasting temperature, roasting time and NH_4Cl amount on the rate of rare earth recovery were investigated. The optimum conditions of chlorination roasting were experimentally obtained as follows, the rate of rare earth recovery can reach above 90% under the roasting conditions of 100 min,(NH-4Cl)/rare earth(mol ratio)12 and 350 ℃.;
出处
《浙江科技学院学报》
CAS
2003年第4期206-209,共4页
Journal of Zhejiang University of Science and Technology