碳酸钠焙烧盐酸浸出分解氟碳铈矿精矿工艺的研究  

Study on the Decomposition Process of Bastnaseite Concentrate Using Sodium Carbonate Roasting Followed by Hydrochloric Acid Leaching

作　　者：柳召刚[1] 杨启山[1] 刘铃声[1] 国树山 陈保战 魏绪钧[4] 胡安娜[1] 

机构地区：[1]包头稀土研究院,内蒙古包头014010 [2]内蒙古包钢稀土高科技股份有限公司,内蒙古包头014010 [3]天津铁厂,天津056404 [4]东北大学,辽宁沈阳110006

出　　处：《稀土》2004年第2期20-25,共6页Chinese Rare Earths

摘　　要：系统地研究了焙烧温度、焙烧时间和碳酸钠的加入量对氟碳铈矿精矿焙烧分解的影响及浸出时间、浸出温度、盐酸浓度和盐酸用量对三价稀土和铈的浸出率的影响。针对氟碳铈矿精矿的分解,提出了碳酸钠焙烧、水洗除杂、稀盐酸浸出处理氟碳铈矿精矿的简单工艺。在实验室内扩大实验的条件下,首次由焙烧、浸出两步制得了高质量的高铈抛光粉,同时也得到了制取少铈富镧氯化稀土的原料。Effects of roast temperature, roast time, the amounts of sodium carbonate on decomposition of bastnaesite concentrate and effects of leaching temperature, leaching time, concentration of hydrochloric acid, the amounts of hydrochloric acid on leaching ratio of trivalent rare earth and tetravalent cerium was studied systematically. A simple, economic technological process about extracting bastnaesite concentrate was put forward. Polishing powder of high quality is firstly obtained by roast and leach, rare earth of La-rich is also obtained on the great laboratory scale.

关 键 词：氟碳铈矿 抛光粉 焙烧 浸出 

分 类 号：TF803.22[冶金工程—有色金属冶金]