Process for the determination of uranium (VI) or dialkyl dithiop

Details Process for the determination of uranium (VI) or dialkyl dithiop Process for the determination of uranium (VI) or dialkyl dithiop

1981-03-11

1982-09-14

Serwin, Ronald E.

Chemistry: physical processes

Physical processes

Crystallization

23230M, G01N 2100

Patent

active

043493505

ABSTRACT:
The invention relates to a process for the determination of uranium (VI) or dialkyl dithiophosphoric acid present in an organic solvent.
In this process, a dialkyl dithiophosphoric acid or a uranium (VI) salt is added to the organic solvent so as to convert all the uranium or dialkyl dithiophosphoric acid present in said solvent into a mixed uranium (VI) - dialkyl dithiophosphoric acid-organophosphorus compound complex. The optical density of the solvent containing the complex in solution is measured so as to determine the concentration of this solvent in the complex, together with its uranium dialkyl dithiophosphoric acid content.
Application to the determination of traces of uranium in tributylphosphate obtained from the reprocessing of irradiated fuels.

REFERENCES:
patent: 2976122 (1961-03-01), Ertelt et al.
patent: 3099537 (1963-07-01), Mason et al.
patent: 3104941 (1963-09-01), Hart et al.
patent: 3403004 (1968-09-01), Jungreis et al.
patent: 3976428 (1976-08-01), Link

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