Ferric ion as a scavenging agent in a solvent extraction process

Details Ferric ion as a scavenging agent in a solvent extraction process Ferric ion as a scavenging agent in a solvent extraction process

1975-05-15

1976-10-19

Schafer, Richard E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

2523011R, 260439R, 423 11, B01D 1104, C07F 1502

Patent

active

039871452

ABSTRACT:
Ferric ions are added into the aqueous feed of a plutonium scrap recovery process that employs a tributyl phosphate extractant. Radiolytic degradation products of tributyl phosphate such as dibutyl phosphate form a solid precipitate with iron and are removed from the extraction stages via the waste stream. Consequently, the solvent extraction characteristics are improved, particularly in respect to minimizing the formation of nonstrippable plutonium complexes in the stripping stages. The method is expected to be also applicable to the partitioning of plutonium and uranium in a scrap recovery process.

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