The mechanism for production of beryllium fluoride from the product of ammonium fluoride processing of beryllium- containing raw material

The mechanism for production of beryllium fluoride from the product of ammonium fluoride processing of beryllium- containing raw material

The technique of fluorite-phenacite-bertrandite ores from Russian Ermakovskoe deposit processing by ammonium bifluoride is described. To determine the temperature mode and the thermal dissociation mechanism of ammonium tetrafluoroberyllate (the product of ammonium-fluoride leaching of the ore) the T...

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Veröffentlicht in:IOP conference series. Materials Science and Engineering 2016-06, Vol.135 (1), p.12021
Hauptverfasser: Kraydenko, R I, Dyachenko, A N, Malyutin, L N, Petlin, I V
Format: Artikel
Sprache:eng
Schlagworte:
Ammonium compounds
Beryllium
Beryllium fluorides
Differential thermal analysis
Fluorides
Fluorite
Infrared spectroscopy
Leaching
Low temperature
Thermal dissociation
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Zusammenfassung:The technique of fluorite-phenacite-bertrandite ores from Russian Ermakovskoe deposit processing by ammonium bifluoride is described. To determine the temperature mode and the thermal dissociation mechanism of ammonium tetrafluoroberyllate (the product of ammonium-fluoride leaching of the ore) the TG DTA have been carried out. By IR spectroscopy and XRD the semi-products of ammonium tetrafluoroberyllate thermal dissociation have been identified. The hygroscopic low-temperature beryllium fluoride forms higher than 380°C. The less hydroscopic form of BeF2 have been produced at 600°C.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/135/1/012021