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Synthesis of diphosphine dioxides for extraction of actinides using supported liquid membranes technology

✍ Scribed by Henri-Jean Cristau; Patrick Mouchet; Jean-François Dozol; Hélène Rouquette

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
986 KB
Volume
6
Category
Article
ISSN
1042-7163

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✦ Synopsis

A recurrent method for synthesis of diphosphine dioxides to be used for extraction of actinides from acidic aqueous solution is described. Selective phosphonium salt formation and cleavage permits the stepwise introduction of different bridges between the phosphorus atoms as well as various chains on them. The influence of the structural parameters on liquidliquid extraction properties of plutonium, neptunium, and americium is studied. Plutonium and neptunium can be efficiently removed from radioactive contaminated liquid wastes, using the supported liquid membranes technology with the more lipophilic organophosphorus extractants. 0 I996 John Wiley & Sons, Inc.

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