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1 295 724

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A1

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IPC

(21) (22)

Application

3865475/05, 1985-03-11

(22)

Actual filing date

1985-03-11

(45)

Published

1994-06-15

(72)

Inventor

Trofimov B.A.Golentovskaja I.P.Mantsivoda G.P.Ivanova N.I.Amosova S.V.

CROSS-LINKED COPOLYMER OF MALEIC ANHYDRIDE AND N,N-BIS-(VINYLHYDROXYETHYL)- DITHIOCARBAMATE POTASSIUM AS A SORBENT FOR GOLD AND PALLADIUM Russian patent published in 1994 - IPC

Abstract SU 1295724 A1

FIELD: cross- linked copolymers. SUBSTANCE: new cross-linked copolymer is made by copolymerization of 3 mole maleic anhydride and 1 mole N,N-bis-(vinylhydroxyethyl)-dithiocarbamate potassium. Copolymer has functional complexing groups, which can be used for gold and palladium sorption. Time of equilibrium state attainment is 20-30 min. EFFECT: enhanced effectiveness of gold and palladium extraction (sorption capacities are 340-360 and 65 mg/g, respectively). 5 tbl

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SU 1 295 724 A1

Authors

Trofimov B.A.

Golentovskaja I.P.

Mantsivoda G.P.

Ivanova N.I.

Amosova S.V.

Dates

1994-06-15—Published

1985-03-11—Filed

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