摘要
用碳酸氢铵沉淀法从包头稀土精矿浓硫酸焙烧水浸液制备了混合碳酸稀土。碳酸稀土分析鉴定结果表明，ＲＥＯ含量５４．１％，ＳＯ４２－含量０．４５％，符合产品质量标准要求。碳酸盐的Ｘ射线粉末衍射分析指出，其物相组成Ｌａ＿２（ＣＯ＿３）＿３·８Ｈ＿２Ｏ，Ｃｅ＿２（ＣＯ＿３）＿３·６Ｈ＿２Ｏ，（Ｌａ，Ｎｄ）＿２（ＣＯ＿３）＿３．８Ｈ＿２Ｏ，属晶型结构。
The mixed rare earth carbonate is prerared with ammonium bicarbonate in solution of rare earth sulfate. The analysed result indicates that each technique quota of this product is qualified. The content of rare earth oxide is 54.1% ,and that of sulfate radical is 0. 4% ,X -ray powder diffraction points out that major phase of it is composed of La_2(CO_3)_3· 8H_2O,Ce_2(CO_3)_3· 6H_2O,(La,Nd)_2(CO_3)_3.8H_2O. It belongs to crystalline.
出处
《包头钢铁学院学报》
1995年第3期80-84,共5页
Journal of Baotou University of Iron and Steel Technology
关键词
稀土精矿
碳酸稀土
硫酸稀土
焙烧
rare earth refined ore, rare earth carbonate, rare earth sulfate
