Fluorine distribution during thermal treatment of sulfuric acid leaching products of complex beryllium raw materials at JSC UMP

Autor: Borsuk, A N, Zherin, I I, Amelina, G N, Pivovarov, I
Zdroj: IOP Conference Series: Materials Science and Engineering; June 2016, Vol. 135 Issue: 1 p012005-012005, 1p
Abstrakt: X-ray diffraction, infrared spectroscopy, thermogravimetry and mass spectrometry were employed to study the behavior and distribution of fluorine in sulfuric acid treatment of the melt of beryl-bertrandite-phenakite-fluorite concentrates with alkali fluxes. It was established that fluorine in a solid phase is predominantly present in the form of sodium and calcium fluorosilicates and in a gaseous phase it is evolved in the form of silicon tetrafluoride and fluorosulfonic acid.
Databáze: Supplemental Index