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2 415 973

(13)

(51)

IPC

C25C3/06(2006-01-01)

C25C3/18(2006-01-01)

(21) (22)

Application

2008134292/02, 2008-08-20

(24)

Start date

2008-08-20

(22)

Actual filing date

2008-08-20

(45)

Published

2011-04-10

(72)

Inventor

Zajkov Jurij PavlovichKovrov Vadim Anatol'EvichKrjukovskij Vasilij AndreevichKhramov Andrej PetrovichShurov Nikolaj Ivanovich

(73)

Holder

Institut Vysokotemperaturnoj Ehlektrokhimii Ural'Skogo Otdelenija Rossijskoj Akademii Nauk Uro Ran)

PROCEDURE FOR PRODUCTION OF ALUMINIUM BY ELECTROLYSIS OF MELT Russian patent published in 2011 - IPC C25C3/06 C25C3/18

Abstract RU 2415973 C2

FIELD: metallurgy.

SUBSTANCE: procedure consists in electrolysis of melt KF-NaF-AlF₃ with additives Al₂O₃ at temperature of electrolyte 700-900°C and at maintaining cryolite ratio (KF+NaF)/AlF₃ from 1.1 to 1.9. Electrolysis is carried out at anode density of current not more, than 1.0 A/cm² and cathode density of current not over 0.9 A/cm².

EFFECT: raised efficiency at simultaneous reduction of specific consumption of electric power and reduced cost of known procedure of aluminium electrolytic production; low rate of corrosion of electrode materials.

3 cl, 1 dwg, 1 tbl

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RU 2 415 973 C2

Authors

Zajkov Jurij Pavlovich

Kovrov Vadim Anatol'Evich

Krjukovskij Vasilij Andreevich

Khramov Andrej Petrovich

Shurov Nikolaj Ivanovich

Dates

2011-04-10—Published

2008-08-20—Filed