A TBP/BTBP-Based GANEX Separation Process Part 3: Fission Product Handling

• A Group ActiNide EXtraction (GANEX) separation system for transmutation has been developed, combining CyMe4-BTBP with TBP and cyclohexanone. This new GANEX solvent has proven efficient in actinide extraction but also been found to extract some undesired fission products and corrosion products. Three major fission products were primarily selected for the study: Mo, Zr, and Pd. There are three main strategies for handling the extraction problem, all of which have been investigated and discussed; these are Pre-extraction, Suppression, and Scrubbing. The only strategy that was found to control the behavior of all three main fission products was suppression by the combination of two water-soluble complexing agents bimet and mannitol.

Subject headings

NATURVETENSKAP  -- Kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

Keyword

solvent-extraction

cyme4-btbp

recovery

GANEX

transmutation

stability

complexes

diamex process

behavior

plutonium

fission products

palladium

Separation

solvent extraction

minor actinides

Publication and Content Type

art (subject category)

ref (subject category)