METHOD OF PROCESSING BERYLLIUM-CONTAINING CONCENTRATES

FIELD: mining industry and inorganic synthesis. ^ SUBSTANCE: invention is intended for use in processing of beryllium-containing ore concentrates into beryllium hydroxide. To that end, initial bertrandite-phenacite-fluorite concentrate is activated by adding to it fluorine-containing compounds in su...

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Bibliographische Detailangaben
Hauptverfasser:	BORSUK ALEKSANDR NIKOLAEVICH, SHAKHVOROSTOV JURIJ VIKTOROVICH, SOSUNOV JURIJ MIKHAJLOVICH, LEVANEVSKIJ IGOR' OLEGOVICH, SAMOJLOV VALERIJ IVANOVICH, ROMANOV VLADIMIR ALEKSANDROVICH, ZADORIN VALERIJ SEMENOVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY
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Beschreibung
Zusammenfassung:	FIELD: mining industry and inorganic synthesis. ^ SUBSTANCE: invention is intended for use in processing of beryllium-containing ore concentrates into beryllium hydroxide. To that end, initial bertrandite-phenacite-fluorite concentrate is activated by adding to it fluorine-containing compounds in such amount as to provide level of fluorine in resulting emulsion 8 to 21%, after which reaction mixture is sulfatized with 93% sulfuric acid at 250-320C for at least 0.5 h. Sulfatized product is then leached to form crude beryllium hydroxide, which is dissolved in alkali and diluted to provoke hydrolysis resulting in technical-grade beryllium hydroxide. ^ EFFECT: increased recovery of beryllium into technical-grade beryllium hydroxide, reduced production waste, and diminished number of steps. ^ 2 tbl