ZIRCONIUM AND HAFNIUM SEPARATION PROCESS

FIELD: processes for producing nuclear-pure zirconium, namely processes for purifying zirconium from hafnium, possibly in ore-processing plants and in nuclear industry. ^ SUBSTANCE: zirconium and hafnium separation process comprises steps of preparing aqueous solution of initial mixture containing s...

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Hauptverfasser:	GUZEEV VITALIJ VASIL'EVICH, DUL'BEEV VLADIMIR VALERIEVICH, SOKOLOV DMITRIJ SERGEEVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS SEPARATION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	FIELD: processes for producing nuclear-pure zirconium, namely processes for purifying zirconium from hafnium, possibly in ore-processing plants and in nuclear industry. ^ SUBSTANCE: zirconium and hafnium separation process comprises steps of preparing aqueous solution of initial mixture containing salts of zirconium and hafnium; further multiple separation by crystallization of zirconium salts from saturated solution of hafnium; before crystallization providing generation of gaseous hydrates in order to remove excess solvent from solution due to saturating solution with hydrate-generating gas at lowered temperature. ^ EFFECT: lowered energy consumption for separating zirconium and hafnium, elimination of using chemical reagents for such process. ^ 4 cl, 5 tbl, 5 ex