ICP-AES法测定精选铌钽矿中高含量Nb_2O_5,ZrO_2及稀土总量  

Determination for High Content Nb_2O_5,ZrO_2,∑REO in Niobium Tantalum Concentrate by ICP-AES

作　　者：崔爱瑞[1,2] 张弘强[1,2] 

机构地区：[1]稀土冶金及功能材料国家工程研究中心,内蒙古包头014030 [2]包头稀土研究院,内蒙古包头014030

出　　处：《稀土》2009年第6期71-73,共3页Chinese Rare Earths

摘　　要：样品经氢氧化钠-过氧化钠熔融分解,在酒石酸存在下,用盐酸酸化,加入几滴氢氟酸,使铌,锆充分溶解,而稀土在酒石酸存在下不会生成氟化稀土沉淀。经稀释后,以ICP-AES法测定。测定范围：Nb2O51%-10%;稀土氧化物总量3%-30%;ZrO21%-60%。Sample decomposed with fused sodium hydroxide-sodium peroxide and acidified by hydrochloric acid with tartaric acid.To solve niobium and zirconium completely,hydrofluoric acid was added and the rare earth remain in the solution.The solution was diluted and detected by ICP-AES.Mensurating scale： Nb2O5 1%～10%;ZrO2 1%～60%;∑REO 3%～30%.

关 键 词：精选铌钽矿 高含量Nb2O5 ZRO2 稀土总量 

分 类 号：O657.31[理学—分析化学] O614.33[理学—化学]