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1 748 411

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A1

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IPC

(21) (22)

Application

4862080/26, 1990-08-27

(22)

Actual filing date

1990-08-27

(45)

Published

1994-07-15

(72)

Inventor

Popik V.P.Zamanskij V.Ja.Pavilajnen Ju.V.

METHOD OF EXTRACTION OF PENTAVALENT ARSENIC FROM THE AQUEOUS SOLUTION Russian patent published in 1994 - IPC

Abstract SU 1748411 A1

FIELD: inorganic chemistry. SUBSTANCE: method involves sorption of pentavalent arsenic on polyampholite in the iron form, its following regeneration with preparing of arsenic-containing desorbate. Before sorption of arsenic polyampholite in the iron form is treated with alkaline solution at concentration 2-4 mole/l, and its regeneration is carried out with alkali solution. Method is used for purification of pentavalent arsenic solutions by sorption on the liquid polyampholite in the iron form. EFFECT: enhanced dynamic capacity exchange by arsenic, simplified purification. 2 cl

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SU 1 748 411 A1

Authors

Popik V.P.

Zamanskij V.Ja.

Pavilajnen Ju.V.

Dates

1994-07-15—Published

1990-08-27—Filed

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