As for fine - grained ta - nb mineral , the flotation is generally adopted , and effective collectors is fatty acids , arsenic acids , phosphonic acids , hydroximic acids and cationics 对细粒钽铌矿，一般采用浮选，其中比较有效的捕收剂有脂肪酸类、胂酸类、膦酸类、羟肟酸类和阳离子型捕收剂。
Chemical analysis methods for non - rare earth impurities of rare earth metals and their oxides - determination of thorium content - arsenazo iii spectrophotometric method and inductively coupled plasma mass spectrum method 稀土金属及其氧化物中非稀土杂质化学分析方法钍量的测定偶氮胂iii分光光度法和电感耦合等离子体质谱法
