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2 104 775

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C1

(51)

IPC

(21) (22)

Application

95121797/25, 1995-12-26

(22)

Actual filing date

1995-12-26

(45)

Published

1998-02-20

(72)

Inventor

Sokolova M.M.Vol'Khin V.V.Tomchuk T.K.

(73)

Holder

Sokolova Marija Mikhajlovna

METHOD OF PREPARING ION EXCHANGER FOR ISOLATING CHROMIUM(VI) FROM SOLUTIONS Russian patent published in 1998 - IPC

Abstract RU 2104775 C1

FIELD: water treatment. SUBSTANCE: mixed hydroxide ion exchanger for treating drinking and waste waters is prepared on the basis of triple system Mg(OH)2-Ni(OH)2-Cu(OH)2. Ion exchanger has general formula MgxNiyCuz(OH)2 where x= 0.250-0.485, y=0.250-0.485, z=0.03-0.50. Precipitate is granulated at temperature ensuring removal of moisture and thermal stability of hydroxide. EFFECT: increased ion-exchange capacity. 2 tbl

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RU 2 104 775 C1

Authors

Sokolova M.M.

Vol'Khin V.V.

Tomchuk T.K.

Dates

1998-02-20—Published

1995-12-26—Filed

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