微量稀土矿物分析

Analysis of Rare-earth Minerals in Micro amount

稀土矿物的种类很多,有磷酸盐,氟碳酸盐,钛铌钽酸盐,硅酸盐及钛硅酸盐等。其中以稀土的磷酸盐和稀土的氟碳酸盐分布最广泛,其次如稀土的钛铌钽酸盐,在矿体也有较广泛的分布。上述矿物均为重要的稀土工业矿物,由于多数矿物颗粒很细。

REE of xenatime and monazite were separated by using paper chroma-tography in developing medium of butanol-HF-HCl-H2O(50:3:40:7)-The R/values of REE,Th,V,Zr,Nb,Ta and P were found to be 0,0,0.52,0.60,0.91,0.93 and 0.84 respectively.The REE of aeschynite were separated by using methyl isobutyl ketone-acetone-HCl-HF(60:30:2:8)as developer,the R,values Of Ta,Nb,Fe,Ti,and REE were found to be 0.99,0.79,0.41,0.17 and O respectively.A technique of extraction chromatognaphy was applied for separation group of REE of aeschynite with P507 as stationary phase,silica gel as support and HC1 as mobile phase.The process was discused in detail.