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2 467 095

(13)

(51)

IPC

C25C3/06(2006-01-01)

(21) (22)

Application

2011118778/02, 2011-05-10

(24)

Start date

2011-05-10

(22)

Actual filing date

2011-05-10

(45)

Published

2012-11-20

(72)

Inventor

Ershov Vladimir AleksandrovichSysoev Ivan Alekseevich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet" Vpo

METHOD OF DEFINING ALUMINA CONCENTRATION IN CRYOLITE-ALUMINA MELT Russian patent published in 2012 - IPC C25C3/06

Abstract RU 2467095 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to method of defining alumina concentration in cryolite-alumina melt in electrolytic production of aluminium. Proposed method comprises predefining calibration relation between physical parameter of cryolite-alumina melt and alumina concentration in said melt, measuring said parameter and calculating said concentration using aforesaid predefined calibration relationship.

EFFECT: minor error in determination, 1,5-2%-decrease compared with known methods, automatic feed of alumina into electrolyte.

3 tbl, 3 dwg

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RU 2 467 095 C1

Authors

Ershov Vladimir Aleksandrovich

Sysoev Ivan Alekseevich

Dates

2012-11-20—Published

2011-05-10—Filed