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2 493 105

(13)

(51)

IPC

C01G25/00(2006-01-01)

C01G27/00(2006-01-01)

C22B34/14(2006-01-01)

C22B3/38(2006-01-01)

(21) (22)

Application

2012100857/05, 2012-01-11

(24)

Start date

2012-01-11

(22)

Actual filing date

2012-01-11

(45)

Published

2013-09-20

(72)

Inventor

Val'Kov Aleksandr Vasil'EvichGlagovskij Ehduard MikhajlovichNevorotin Vadim KirillovichShtutsa Mikhail Georgievich

(73)

Holder

Rossijskaja Federatsija, Ot Imeni Kotoroj Vystupaet Gosudarstvennaja Korporatsija Po Atomnoj EhnergiiFederal'Noe Gosudarstvennoe Avtonomnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Issledovatel'Skij Jadernyj Universitet Mifi" Mifi)

METHOD OF ZIRCONIUM AND CELTIUM SEPARATION Russian patent published in 2013 - IPC C01G25/00 C01G27/00 C22B34/14 C22B3/38

Abstract RU 2493105 C1

FIELD: chemistry.

SUBSTANCE: invention relates to technology of rare metals, in particular to hydrometallurgy of zirconium and hafnium. Method of zirconium and hafnium separation includes obtaining zirconium and hafnium hydroxides at temperature, not higher than 30-35°C, dehydration of obtained zirconium and hafnium hydroxides, their dissolution in nitric acid and following extraction of zirconium by tributylphosphate extraction from obtained solution in backflow, water phase is removed from cell in the middle of cascade, nitric acid is added to it, and obtained solution is introduced into the following stage downstream water phase movement.

EFFECT: invention ensures increase of zirconium separation, increase of cascade work stability and reduction of nitric acid consumption.

4 cl, 5 tbl, 3 ex

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RU 2 493 105 C1

Authors

Val'Kov Aleksandr Vasil'Evich

Glagovskij Ehduard Mikhajlovich

Nevorotin Vadim Kirillovich

Shtutsa Mikhail Georgievich

Dates

2013-09-20—Published

2012-01-11—Filed