LnZrOx (Ln: La, Sm) mixed oxides of Ln: Zr = 1 were prepared by different methods (complex polymerized method, sorption ......

萤石是四川牦牛坪稀土矿最重要的脉石矿物之一.根据稀土含量、有关参数及配分模式,矿区萤石可分为LREE富集型、LREE平坦型和LREE亏......