Electroseparation of actinide and rare earth metals

Details Electroseparation of actinide and rare earth metals Electroseparation of actinide and rare earth metals

1995-06-02

1996-12-10

Mai, Ngoclan

Electrolysis: processes, compositions used therein, and methods

Electrolytic process involving actinide series elements or...

C25C 334

Patent

active

055827063

ABSTRACT:
A pyrochemical process is utilized to recover 99% of the remaining transuranium materials from plutonium-uranium extraction waste. One step of the overall pyrochemical process involves the electrochemical separation of the waste components. A solid anode and a solid cathode are used in this electrochemical separation step to electrorefine in single or multiple steps. The solid anode and solid cathode are selected from certain preferred anodic and cathodic materials. Where multiple electrorefining steps are used to obtain more complete electroseparation, this is achieved by employing in the multiple electrorefining steps both a solid anode, suitably graphite, and a molten metal anode containing a mixture of the actinide and rare earth elements. This results in greater separation than can be realized through electroseparation by use of either anode alone.

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