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(19)

(11)

2 504 592

(13)

(51)

IPC

C22B34/36(2006-01-01)

C22B3/12(2006-01-01)

(21) (22)

Application

2012149272/02, 2012-11-19

(24)

Start date

2012-11-19

(22)

Actual filing date

2012-11-19

(45)

Published

2014-01-20

(72)

Inventor

D'Jachenko Aleksandr NikolaevichKrajdenko Roman IvanovichChegrintsev Sergej NikolaevichDugel'Nyj Aleksandr Petrovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Issledovatel'Skij Tomskij Politekhnicheskij Universitet"

METHOD FOR OBTAINING SODIUM TUNGSTATE Russian patent published in 2014 - IPC C22B34/36 C22B3/12

Abstract RU 2504592 C1

FIELD: metallurgy.

SUBSTANCE: tungsten-containing raw material and solution of sodium carbonate with concentration of 220 g/l is loaded to an autoclave. A leaching process is performed during at least 6 hours at the temperature of 200-225°C with constant mixing.

EFFECT: possible processing of raw material with tungsten content.

2 ex

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RU 2 504 592 C1

Authors

D'Jachenko Aleksandr Nikolaevich

Krajdenko Roman Ivanovich

Chegrintsev Sergej Nikolaevich

Dugel'Nyj Aleksandr Petrovich

Dates

2014-01-20—Published

2012-11-19—Filed