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2 155 244

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IPC

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Application

98112307/28, 1998-06-24

(24)

Start date

1998-06-24

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Actual filing date

1998-06-24

(45)

Published

2000-08-27

(72)

Inventor

Zavijalov A.S.Luppov V.A.Ashikhmin A.S.Masljakov A.I.Nasonov Ju.B.Kolesnikov A.E.Abramov O.B.Gol'Dinov A.L.Sofronova N.A.

(73)

Holder

Oao Khimicheskij Kombinat Imeni B.P. Konstantinova"

METHOD OF ELECTROLYTE REGENERATION Russian patent published in 2000 - IPC

Abstract RU 2155244 C2

FIELD: production of chlorine and sodium hydroxide by electrolysis of sodium chloride solution with mercury-pool cathode; regeneration of electrolyte (anolyte) depleted in sodium chloride. SUBSTANCE: anolyte is treated with hydrochloric acid and processed with vacuum removing main amount of elementary chlorine; then sodium thiosulfate is added and then calcium chloride is added and anolyte is finally saturated by dissolving commercial calcium chloride and soda cleaning is performed. EFFECT: reduced losses of mercury with slurry and consequently improved ecological safety. 2 cl

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RU 2 155 244 C2

Authors

Zavijalov A.S.

Luppov V.A.

Ashikhmin A.S.

Masljakov A.I.

Nasonov Ju.B.

Kolesnikov A.E.

Abramov O.B.

Gol'Dinov A.L.

Sofronova N.A.

Dates

2000-08-27—Published

1998-06-24—Filed

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