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IPC

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Application

2001102147/15, 2001-01-23

(24)

Start date

2001-01-23

(22)

Actual filing date

2001-01-23

(45)

Published

2003-11-27

(72)

Inventor

Kulikov B.P.Skornjakov V.I.Grinberg I.S.Ragozin L.V.Maksjutov E.N.Efimov A.A.Gorkovenko V.I.Borovik V.A.Tenigin A.Ju.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Aljuminievaja Kompanija"

METHOD FOR TREATMENT OF REGENERATION CRYOLITE FROM SODIUM SULFATE Russian patent published in 2003 - IPC

Abstract RU 2217377 C2

FIELD: metallurgy of aluminum, chemical technology. SUBSTANCE: treatment of regeneration cryolite from sodium sulfate is carried out with hot water for a single stage being cryolite is charged in solution by periodic schedule in the initial weight ratio liquid : solid = (10-16):1 and after at least two periodic charges of cryolite this ratio is reduced to (3-6):1. Invention can be used in preparing regeneration cryolite from gases exhausting from electrolyzers. EFFECT: improved treatment method, enhanced technological indices of regeneration cryolite. 1 tbl

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RU 2 217 377 C2

Authors

Kulikov B.P.

Skornjakov V.I.

Grinberg I.S.

Ragozin L.V.

Maksjutov E.N.

Efimov A.A.

Gorkovenko V.I.

Borovik V.A.

Tenigin A.Ju.

Dates

2003-11-27—Published

2001-01-23—Filed