METHOD OF EXTRACTION OF RUTHENIUM CONTAINING FROM URANIUM-CONTAINING SOLUTION Russian patent published in 1997 - IPC

Abstract RU 2086508 C1

FIELD: chemical technology, inorganic chemistry. SUBSTANCE: nitrite is added to solution and ruthenium is bound selectively by passing through the resin based on quaternary ammonium or tertiary amine. Nitrite concentration in solution is 0.1-50 g/l as measured for NO-2

. Ruthenium is eluted from the resin with nitric acid. Eluate is neutralized with ammonia or alkali to pH above 5 and passed through the resin of thiol type to extract ruthenium. EFFECT: improved method of extraction. 9 cl

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RU 2 086 508 C1

Authors

Antuan Floreansig[Fr]

Fransua Nikola[Fr]

Dates

1997-08-10Published

1992-02-07Filed