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IPC

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Application

97103167/25, 1997-03-04

(22)

Actual filing date

1997-03-04

(45)

Published

1999-01-27

(72)

Inventor

Larin Eh.P.Chvatov V.N.Petrov A.G.Soldatkin A.V.Gribanenkov S.V.Pivovarov V.P.

(73)

Holder

Gosudarstvennoe Predprijatie Leningradskaja Atomnaja Ehlektrostantsija Im.V.I.Lenina

METHOD FOR DECONTAMINATING COMMERCIAL OIL FROM RADIOACTIVE IMPURITIES Russian patent published in 1999 - IPC

Abstract RU 2125745 C1

FIELD: recovery of radioactive wastes of nuclear power plants including liquid wastes. SUBSTANCE: method involves sequential introduction of alkaline potassium permanganate and ferrocyanide collector in oil heated to 80 C, volume proportion of oil and ferrocyanide collector being 0.5:5.0, to form coagulant followed by separation of radioactive sediment; used as ferrocyanide collector is cobalt-potassium ferrocyanide or mixture of nickel-potassium ferrocyanide and cobalt- potassium ferrocyanide. Upon such decontamination oil may be reused as it conforms to GOST requirements. EFFECT: improved cleanliness of recovered oil. 1 tbl

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RU 2 125 745 C1

Authors

Larin Eh.P.

Chvatov V.N.

Petrov A.G.

Soldatkin A.V.

Gribanenkov S.V.

Pivovarov V.P.

Dates

1999-01-27—Published

1997-03-04—Filed

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