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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Bibliographic Details
Main Authors GUZEEV VITALIJ VASIL'EVICH, DUL'BEEV VLADIMIR VALERIEVICH, SOKOLOV DMITRIJ SERGEEVICH
Format Patent
LanguageEnglish
Russian
Published 27.09.2007
Subjects
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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Summary: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
Bibliography:Application Number: RU20050133517