Centrifugal extraction machine adopts acid feed the single solvent extraction process
Centrifugal extraction machine adopts acid feed the single solvent extraction process, do the following improvement: in order to ensure that the yield of thorium, with 30% of the TBP extraction of thorium and uranium, near the water phase export (
Away from the water phase 3 - for export
Add 13 mol/L HNO3 as salting-out agent;
In order to improve the lobes of the nuclide Ru decontamination, material liquid to join hydrazine preprocessing.
3 mol/L hydrazine hydrate under 95 oc processing material liquid 3 h of ruthenium decontamination factor can be increased 30 -
In order to improve the efficiency of extraction of uranium, in the process of using centrifugal extraction machine increased the proportion of the extraction liquid, the uranium organic phase/reverse extraction liquid = 9/5.
The experimental results show that after centrifugal extraction machine adopts acid feed of single solvent extraction process to extract, uranium, spit yield reached 99.
5% and 99.
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