微量稀土矿物分析

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

Analysis of Rare-earth Minerals in Micro amount

REE of xenatime and monazite were separated by using paper chroma- tography in developing medium of butanol-HF-HCI-HZO (50:3:40:7) " The R values of REE, Th, V, Zr, Nb, Ta and P were found to be 0, 0, 0.52, 0.6 0, 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 Rf 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 P5o7 as stationary phase, silica gel as support and HCl as mobile phase. The process was discused in detail.