Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1991-10-02
1993-02-02
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204109, 204112, 423 11, 423 50, C25C 106
Patent
active
051835410
ABSTRACT:
Technetium is separated from nickel by electro-refining contaminated nickel. Electrorefining controls the electrolyte solution oxidation potential to selectively reduce the technetium from the metallic feedstock solution from Tc(VII) to Tc(IV) forcing it to report to the anodic slimes and thereby preventing it from reporting to the cathodic metal product. This method eliminates the need for peripheral decontamination processes such as solvent extraction to remove the technetium prior to nickel electrorefining. These methods are particularly useful for remediating nickel contaminated by radio-contaminants such as technetium and actinides.
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Ayers Laura J.
Boris Gregory F.
Gass William R.
Snyder Thomas S.
Worcester Samuel A.
Mayekar Kishor
Niebling John
Valentine J. C.
Westinghouse Electric Corp.
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