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2 280 616

(13)

(51)

IPC

C01G17/02(2006-01-01)

C22B41/00(2006-01-01)

(21) (22)

Application

2004128021/15, 2004-09-20

(24)

Start date

2004-09-20

(22)

Actual filing date

2004-09-20

(45)

Published

2006-07-27

(72)

Inventor

Ushakov Oleg SemenovichKalashnikov Anatolij LeonidovichMatjukha Vladimir AleksandrovichSmagin Aleksandr AlekseevichMalyj Evgenij NikolaevichAfanas'Ev Vladimir Grigor'Evich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Khimicheskij Kombinat"

METHOD OF PREPARING ISOTOPE-ENRICHED GERMANIUM Russian patent published in 2006 - IPC C01G17/02 C22B41/00

Abstract RU 2280616 C2

FIELD: isotopic enrichment technologies.

SUBSTANCE: method, which can be applied in nuclear physics and biomedical research, resides in that isotope-enriched germanium tetrafluoride fraction is dissolved in ethanol/carbon tetrachloride mixture in presence of completing agent, e.g. citric acid. To resulting solution, hydrogen peroxide solution and nitric acid are added, after which mixture obtained is evaporated until dry. Dry residue is calcined and reduced into germanium with hydrogen. Yield of germanium is 97% and chemical purity 99,9%.

EFFECT: increased productivity of process.

5 cl, 4 ex

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RU 2 280 616 C2

Authors

Ushakov Oleg Semenovich

Kalashnikov Anatolij Leonidovich

Matjukha Vladimir Aleksandrovich

Smagin Aleksandr Alekseevich

Malyj Evgenij Nikolaevich

Afanas'Ev Vladimir Grigor'Evich

Dates

2006-07-27—Published

2004-09-20—Filed