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Plutonium Oxide Polishing for MOX Fuel Production

Elizabeth A. BluhmActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USACorrespondence[email protected]

Kent D. AbneyActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Simon BalkeyActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Jason C. BrockActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Fawn CorizActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

James T. DykeActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Daniel J. GarciaActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Brenda J. GriegoActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Benjie T. MartinezActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

David MartinezActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Joe Ray MartinezActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Yvonne A. MartinezActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Lonny MorganActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Judy D. RoybalActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Jose A. ValdezActinide Process Chemistry, Nuclear Materials Technology Division, E511, Los Alamos National Laboratory, Los Alamos, NM, USA

Kevin B. RamseyPit Disposition Science and Technology, Nuclear Materials Technology Division, MS E530, Los Alamos National Laboratory, Los Alamos, NM, USA

Brian K. BluhmPit Disposition Science and Technology, Nuclear Materials Technology Division, MS E530, Los Alamos National Laboratory, Los Alamos, NM, USA

Carl D. MartinezPit Disposition Science and Technology, Nuclear Materials Technology Division, MS E530, Los Alamos National Laboratory, Los Alamos, NM, USA

Manuelita M. ValdezPit Disposition Science and Technology, Nuclear Materials Technology Division, MS E530, Los Alamos National Laboratory, Los Alamos, NM, USA

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Abstract:

Los Alamos National Laboratory (LANL) has been tasked to produce 120 kg of plutonium as highly purified PuO₂ for the European Mixed Oxide (MOX) Lead Test Assembly managed by Duke, COGEMA, Stone & Webster (DCS). To meet stringent and challenging technical requirements for PuO₂ production, the LANL aqueous polishing team recently established consistency in generating quality material from weapons-grade PuO₂. Polishing was required to remove undesirable quantities of trace-metal impurities, particularly gallium, and to produce a material with appropriate powder characteristics, such as particle size and surface area. The process flow sheet for PuO₂ polishing was based on aqueous purification and included the unit operations of dissolution, ion exchange, oxalate precipitation, and calcination.

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Plutonium Oxide Polishing for MOX Fuel Production

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Plutonium Oxide Polishing for MOX Fuel Production

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