METHOD FOR RECOVERING URANIUM-ALUMINUM WASTE OF NUCLEAR INDUSTRY

FIELD: nuclear power engineering. ^ SUBSTANCE: proposed method used for recovering rejected and unclaimed aluminum-clad fuel elements with uranium-aluminum core involves following procedures. Waste is placed in sodium hydroxide and sodium nitrate solution whereupon mixture temperature is reduced to...

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Hauptverfasser:	BUKHARIN ALEKSANDR DMITRIEVICH, DENISKIN VALENTIN PETROVICH, FILATOV OLEG NIKOLAEVICH, KOLESNIKOV BORIS PETROVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT DECONTAMINATION ARRANGEMENTS THEREFOR GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:	FIELD: nuclear power engineering. ^ SUBSTANCE: proposed method used for recovering rejected and unclaimed aluminum-clad fuel elements with uranium-aluminum core involves following procedures. Waste is placed in sodium hydroxide and sodium nitrate solution whereupon mixture temperature is reduced to 60-70 °C and nitric acid is introduced in solution; then mixture is exposed to temperature of 80±10 °C, whereupon mixture is filtered off to extract uranium. ^ EFFECT: reduced cost and uranium loss in waste recovery. ^ 1 cl