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An advanced purex process based on salt-free reductants
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Abstract
An advanced plutonium and uranium recovery process has been
established based on two organic reductants, N,N-dimethylhydroxylamine (DMHAN)
and methylhydrazine (MH), as U/Pu separation reagents. This Advanced Purex
process based on Organic Reductants (APOR) is composed of three cycles,
including U/Pu co-decontamination/separation cycle, uranium purification
cycle and plutonium purification cycle. Using DMHAN and MH as plutonium
stripping reagents in the U/Pu co-decontamination/separation cycle and
plutonium purification cycle, the APOR process exhibits high performance
with following highlights: 1) the process is much simpler because of the
elimination of Tc scrubbing operation and the supplement extraction
operation, 2) high efficiency of U/Pu separation can be achieved in the
first cycle, 3) plutonium product solution of high concentration can be
obtained in the Pu purification cycle with a simple extraction operation
instead of circumfluent extraction or evaporation of the plutonium solution.
Walter de Gruyter GmbH
Title: An advanced purex process based on salt-free reductants
Description:
Abstract
An advanced plutonium and uranium recovery process has been
established based on two organic reductants, N,N-dimethylhydroxylamine (DMHAN)
and methylhydrazine (MH), as U/Pu separation reagents.
This Advanced Purex
process based on Organic Reductants (APOR) is composed of three cycles,
including U/Pu co-decontamination/separation cycle, uranium purification
cycle and plutonium purification cycle.
Using DMHAN and MH as plutonium
stripping reagents in the U/Pu co-decontamination/separation cycle and
plutonium purification cycle, the APOR process exhibits high performance
with following highlights: 1) the process is much simpler because of the
elimination of Tc scrubbing operation and the supplement extraction
operation, 2) high efficiency of U/Pu separation can be achieved in the
first cycle, 3) plutonium product solution of high concentration can be
obtained in the Pu purification cycle with a simple extraction operation
instead of circumfluent extraction or evaporation of the plutonium solution.
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