METHOD OF IODIDE REFINING OF HAFNIUM
FIELD: iodide refining of hafnium. ^ SUBSTANCE: interaction of iodine with black metal is carried out at temperature of 250-350°C. Sedimentation of refined hafnium is carried out at temperature of 1200-1600°C on heater (filament) made from molybdenum or zirconium wire in form of one or several loops...
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| creator | SINEGRIBOV VIKTOR ANDREEVICH MORENKO OL'GA GRIGOR'EVNA SHTUTSA MIKHAIL GEORGIEVICH POGADAEV VLADIMIR ARKAD'EVICH JUDINA TAT'JANA BORISOVNA INDYK SERGEJ IVANOVICH SOTSKOV KONSTANTIN VJACHESLAVOVICH PIMENOV JURIJ VLADIMIROVICH KOTSAR' MIKHAIL LEONIDOVICH CHEREMNYKH GENNADIJ SERGEEVICH |
| description | FIELD: iodide refining of hafnium. ^ SUBSTANCE: interaction of iodine with black metal is carried out at temperature of 250-350°C. Sedimentation of refined hafnium is carried out at temperature of 1200-1600°C on heater (filament) made from molybdenum or zirconium wire in form of one or several loops connected to electrode end-pieces. Heater is formed in iodide refining apparatus in such way that lower part of each wire loop is suspended above insulator surface at clearance equal to 1/3-1/2 of final thickness of bar. Proposed method may be used for production of iodide hafnium bars more than 17 mm in diameter at height of heater loop more than 0.8 m. ^ EFFECT: enhanced purity by admixtures. ^ 4 cl, 1 tbl, 3 ex |
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Sedimentation of refined hafnium is carried out at temperature of 1200-1600°C on heater (filament) made from molybdenum or zirconium wire in form of one or several loops connected to electrode end-pieces. Heater is formed in iodide refining apparatus in such way that lower part of each wire loop is suspended above insulator surface at clearance equal to 1/3-1/2 of final thickness of bar. Proposed method may be used for production of iodide hafnium bars more than 17 mm in diameter at height of heater loop more than 0.8 m. ^ EFFECT: enhanced purity by admixtures. ^ 4 cl, 1 tbl, 3 ex</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | METHOD OF IODIDE REFINING OF HAFNIUM |
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