Production and investigation into properties of high-pure rhenium fluorides

2nd International Symposium on Fundamental Aspects of Rare-earth Elements Mining and Separation and Modern Materials Engineering

材料科学;物理学

Vybyvanets, V.I.^1 ; Kosukhin, A.V.^1 ; Cherenkov, A.V.^1 ; Shilkin, G.S.^1

FSUE Scientific Research Institute Scientific Industrial Association LUCH, Zheleznodorozhnaya Str. 24, Podolsk, Moscow Region

142100, Russia^1

关键词: Gasphase;    Hydrogen reduction;    Liquid vapor equilibrium;    Two sources;    Two-product;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/112/1/012042/pdf
DOI  :  10.1088/1757-899X/112/1/012042

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Two products of synthesis were obtained: synthesis product at a fluorination temperature of 300°C, synthesis product at a fluorination temperature of 600°C. Two source products were separated and rectified during this work. Monofraction of rhenium hexafluorides and heptafluorides were obtained. The temperatures of liquids in the system ReF6- ReF7were determined. Liquid-vapor equilibrium in the system was investigated. Viscosity and surface-tension at the liquid-to-vapor boundary are measured for liquid ReF6and ReF7.A promising method of tungsten-rhenium alloys making is a gas-phase precipitation, namely joint hydrogen reduction of these metals fluorides.