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2 356 961

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IPC

C22B26/12(2006-01-01)

C22B35/00(2006-01-01)

C22B3/08(2006-01-01)

(21) (22)

Application

2008104477/02, 2008-02-05

(24)

Start date

2008-02-05

(22)

Actual filing date

2008-02-05

(45)

Published

2009-05-27

(72)

Inventor

Zelenin Viktor IvanovichSamojlov Valerij IvanovichKulenova Natal'Ja Anatol'EvnaOnalbaeva Zhanar SagidoldinovnaShushkevich Ljudmila VladimirovnaKartashov Vadim ViktorovichDenisova Ehl'Mira Ivanovna

(73)

Holder

Gosudarstvennoe Obshcheobrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet-Upi"

METHOD OF LITHIUM EXTRACTION FROM MINERAL RAW MATERIALS Russian patent published in 2009 - IPC C22B26/12 C22B35/00 C22B3/08

Abstract RU 2356961 C2

FIELD: metallurgy.

SUBSTANCE: invention relates to processing of lithium-bearing raw materials, particularly to method of lithium extraction from mineral raw materials. Method includes preparation of charge from the raw materials and flux in the form of sodium carbonate, charge melting, water melt granulation. Then it is implemented chipping of granules, its repulping, treatment by sulfuric acid and water leaching with extraction of lithium into solution in the form of lithium sulphate. During the charge preparation in the capacity of mineral raw materials there is used beryl-spodumene concentrate at receiving of mass ratio in it SiO₂/(Na₂O+Li₂O), equal to 2.0÷2.3. Water leaching is implemented with additional extraction of beryllium in the form of beryllium sulphate.

EFFECT: raw materials base expansion of lithium manufacturing, providing reduce the price of the extraction process of lithium.

1 tbl, 1 ex

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RU 2 356 961 C2

Authors

Zelenin Viktor Ivanovich

Samojlov Valerij Ivanovich

Kulenova Natal'Ja Anatol'Evna

Onalbaeva Zhanar Sagidoldinovna

Shushkevich Ljudmila Vladimirovna

Kartashov Vadim Viktorovich

Denisova Ehl'Mira Ivanovna

Dates

2009-05-27—Published

2008-02-05—Filed