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2 107 076

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C1

(51)

IPC

(21) (22)

Application

96101975/04, 1996-02-01

(22)

Actual filing date

1996-02-01

(45)

Published

1998-03-20

(72)

Inventor

Mjasoedova G.V.Lileeva L.V.Shcherbinina N.I.Kolobov S.S.Komozin P.N.

(73)

Holder

Institut Geokhimii I Analiticheskoj Khimii Im.V.I.Vernadskogo Ran

METHOD FOR PRODUCTION OF COMPLEXING IONITE Russian patent published in 1998 - IPC

Abstract RU 2107076 C1

FIELD: analytic chemistry and hydrometallurgy for selective concentration and extraction of platinum metals of solutions. SUBSTANCE: complexing ionite is prepared by condensing of 3(5)-methyl pyrazole with paraform which takes place at 95-100 C. Polycondensate is affected by cross-linking with the help of resorcin, ratio of 3(5)-methyl pyrazole, paraform and resorcin being 1:2.0-2.5:0.25, respectively. Condensation product is affected by hardening which takes place at 140-150 C. EFFECT: improved efficiency.

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RU 2 107 076 C1

Authors

Mjasoedova G.V.

Lileeva L.V.

Shcherbinina N.I.

Kolobov S.S.

Komozin P.N.

Dates

1998-03-20—Published

1996-02-01—Filed

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