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2 239 898

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IPC

(21) (22)

Application

2001103909/06, 2001-02-12

(24)

Start date

2001-02-12

(22)

Actual filing date

2001-02-12

(45)

Published

2004-11-10

(72)

Inventor

Bashlachev V.N.Verevkin E.F.Zhitkov S.A.Karpov V.D.Kondakov V.M.Stikhin V.F.Tavrin V.M.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Khimicheskij Kombinat" Ministerstva Rossijskoj Federatsii Po Atomnoj Ehnergii

METHOD FOR RECOVERING PLATINUM CONTAMINATED WITH URANIUM, AND/OR PLUTONIUM, AND AMERICIUM Russian patent published in 2004 - IPC

Abstract RU 2239898 C2

FIELD: recovery of metal wastes.

SUBSTANCE: proposed method includes platinum treatment with mixture of nitric and hydrochloric acids. Solution obtained in the process is corrected with respect to acidity ranging between 0.5 - 3.0 g-eq of H⁺/l prior to platinum settling down and decontaminated from radionuclides by contacting solid heteroradical phosphonous oxide base extractant.

EFFECT: enhanced economic efficiency of method.

1 cl, 2 tbl

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RU 2 239 898 C2

Authors

Bashlachev V.N.

Verevkin E.F.

Zhitkov S.A.

Karpov V.D.

Kondakov V.M.

Stikhin V.F.

Tavrin V.M.

Dates

2004-11-10—Published

2001-02-12—Filed