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2 097 335

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C1

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IPC

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Application

95116571/25, 1995-09-25

(22)

Actual filing date

1995-09-25

(45)

Published

1997-11-27

(72)

Inventor

Khanin A.B.Ivanov A.D.Budykina T.A.Martynov Ju.P.Babaskin L.A.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Kozhevennyj Zavod"

METHOD FOR PRODUCING COAGULATING AGENTS Russian patent published in 1997 - IPC

Abstract RU 2097335 C1

FIELD: treatment of sulfide-containing sewage, e! g! effluents from enterprises of leather industry. SUBSTANCE: iron is electrochemically dissolved in aqueous solution of medium or low-basic aluminium salt taken in concentration 40-210 g/l based on alumina content. Process is conducted at temperature 70-80 C, current density 9-25 A/sq.dm, under oxidizing conditions provided by sparging solution with chlorine gas flow or air flow. EFFECT: good-quality, efficient coagulating agents. 3 cl, 1 tbl

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RU 2 097 335 C1

Authors

Khanin A.B.

Ivanov A.D.

Budykina T.A.

Martynov Ju.P.

Babaskin L.A.

Dates

1997-11-27—Published

1995-09-25—Filed

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