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

8th International Scientific Conference "Issues of Physics and Technology in Science, Industry and Medicine"

物理学;工业技术;医药卫生

Borsuk, A.N.^1 ; Zherin, I.I.^2 ; Amelina, G.N.^2 ; Pivovarov, I.^2

JSC Ulba Metallurgical Plant, 102 Abay Ave., Ust-Kamenogorsk

070005, Kazakhstan^1

National Research Tomsk Polytechnic University, Tomsk, Russia^2

关键词: Gaseous phase;    Silicon tetrafluoride;    Solid-phase;    Sulfuric acid leaching;    Sulfuric acid treatment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/135/1/012005/pdf
DOI  :  10.1088/1757-899X/135/1/012005

来源: IOP

【 摘 要 】

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.