Filing Information

Inventor(s)	Jean-Michel Fulconis · Jacques Delagrange · Francis Dalard ·
Assignee(s)	Commissariat a lEnergie Atomique ·  View assignee updates
Attorney/Agent(s)	Swiss Law Group ·
Primary Examiner	Steven Bos ·
Application Number	US10050915
Filing date	01/22/2002
Issue date	04/06/2004
Prior Publication Data	US20020150196 - 10/17/2002
Predicted expiration date	09/15/2022
Patent term adjustment	236
U.S. Classifications	423/22  · 976/DIG.391  · 976/DIG.375  · 976/DIG.392  · 376/308  ·
International Classifications	--
Kind Code	B2
International Classifications	423 22 · 376308 · 976DIG 375 · 976DIG 391 · 976DIG 392 ·
Related U.S. Application Data	This application claims priority under 35 U.S.C. §§119 and/or 365 to 01 0174 filed in France on Feb. 8, 2001; the entire content of which is hereby incorporated by reference.
Foreign Priority	FR0101704 - 02/08/2001 ·

Patent Family

Abstract

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.

Independent Claims | See all claims (16)

1. 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.