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US 9,388,478 B1Granted
Technetium recovery from high alkaline solution
AssigneeSavannah River Nuclear Solutions, LLC
InventorCharles A. Nash
Life of this patent
Estimating the term…
Abstract
Disclosed are methods for recovering technetium from a highly alkaline solution. The highly alkaline solution can be a liquid waste solution from a nuclear waste processing system. Methods can include combining the solution with a reductant capable of reducing technetium at the high pH of the solution and adding to or forming in the solution an adsorbent capable of adsorbing the precipitated technetium at the high pH of the solution.
Claims24
A method for recovering technetium from a solution comprising:
- combining the solution with a reductant, the solution having a pH of 12 or greater, the solution comprising dissolved technetium, the reductant being capable at the pH of the solution of reducing the oxidation state of the dissolved technetium to an oxidation state at which the technetium is insoluble in the solution and precipitates out of the solution;
- adding to the solution or forming in the solution an adsorbent, the adsorbent being capable at the pH of the solution of adsorbing the precipitated technetium.
Dependencies are inferred from the claim text.