Authors:
H. Geckeis Universität des Saarlandes Anorganische Analytik und Radiochemie Saarbrücken (Germany)

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W. Neumann Universität des Saarlandes Anorganische Analytik und Radiochemie Saarbrücken (Germany)

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W. Müller Universität des Saarlandes Anorganische Analytik und Radiochemie Saarbrücken (Germany)

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Abstract  

The dissolution behaviour of two alloys, which represent the metallic precipitates, occurring in the dissolution step of a nuclear reprocessing plant was investigated. The solubility of these alloys, containing Mo, Ru, Rh and Pd, in HNO3-solutions is rather low and dissolution ceases after some time, caused by passivation. A significant acceleration of the dissolution rate takes place if ozone is passed through the alloy/HNO3-suspension, or if an electrolytic dissolver with or without an oxidation catalyst is used. Moreover, Ru can be separated as RuO4 by distillation.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)