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US6716402: Dissolution and decontamination process
16 Claims, 2 Drawings
The present invention concerns a process for dissolving ruthenium deposits that are present on a surface and a process for decontaminating the internal circuits of nuclear fuel reprocessing plants using the said dissolution process.
The process according to the invention comprises bringing the said surface into contact with an aqueous solution of perruthenate, with the said aqueous solution having a pH equal to or greater than 12, so that the ruthenium is oxidised.
- 1. Process for dissolving ruthenium deposits that are present on a surface, comprising bringing said surface into contact with an aqueous solution of perruthenate, having a pH equal to or greater than 12.
U.S. Patent Documents
Foreign Patent Documents
* cited by examiner
|Document Number||Assignees||Inventors||Issue/Pub Date|
|EP0247933||COMMISSARIAT A L'ENERGIE ATOMIQUE Etablissement de Caractre Scientifique Technique et Industriel||Dec 1997|
|JP63242934*||ISHIKAWAJIMA HARIMA HEAVY IND CO LTD||Oct 1988|
|JP63243232*||ISHIKAWAJIMA HARIMA HEAVY IND CO LTD||Oct 1988|
|JP10272327||NIPPON MUKI CO LTD||Oct 1998|
|Database WPI, Section Ch, Week 198846, Derwent Publications Ltd., London, GB; Class K07, AN 1988-327938, XP002181487, no month.|
The current document is not referenced by other documents.