Open AccessInterphase distribution of rare and rare earth elements in silicate-fluorine systems at T = 800–1200˚C AND P = 1–2 kbar (experimental investigation)
Author(s) -
A. R. Kotelnikov,
Н. И. Сук,
V. S. Korzhinskaya,
Z. A. Kotelnikova,
Yu. B. Shapovalov
Publication year - 2019
Publication title -
doklady akademii nauk. rossijskaâ akademiâ nauk
Language(s) - English
Resource type - Journals
ISSN - 0869-5652
DOI - 10.31857/s0869-56524845595-599
Subject(s) - silicate , fluoride , interphase , aluminosilicate , rare earth , fluorine , phase (matter) , partition coefficient , mineralogy , salt (chemistry) , materials science , chemistry , thermodynamics , geology , analytical chemistry (journal) , inorganic chemistry , metallurgy , organic chemistry , physics , genetics , biology , catalysis
The melting in the system of aluminosilicate (granite) melt — fluoride salt melt at T = 800–1200˚C and P = 1–2 kbar was experimentally investigated. The data on the phase composition of silicate-salt systems and the character of the interphase distribution of ore components are presented. The partition coefficients of rare-earth elements between the granite melt and fluoride phase at 900–1200˚C, P = 1–2 kbar were obtained. It is shown that REE enrich the fluoride phase with respect to the silicate melt. Elements of the (V, Nb, Ta), (Ti, Zr, Hf) groups almost always prefer a silicate melt relative to fluoride.