PUO2-REDUCING DISSOLUTION PROCESS, IN PARTICULAR FOR THE TREATMENT OF PUO2-CONTAMINATED ORGANIC WASTE

摘要

The subject of the invention is a process for the reductive dissolution of PuO2, which can be used in particular for the treatment of organic waste contaminated by PuO2. /P P This process consists in bringing plutonium dioxide into contact with an acidic aqueous solution, hydrazine-free, containing a reducing agent with redox potential less than +0.5 V / ENH to reduce plutonium and dissolve it. /P P The reducing agent can be Cr ** 2 ** + or U ** 4 ** +.