Transition metal decontamination process
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United States of America Patent
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Jun 8, 1993
Grant Date -
N/A
app pub date -
Dec 20, 1991
filing date -
Dec 20, 1991
priority date (Note) -
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Abstract
Nickel (or other transition metal) contaminated with about 5 ppm technetium is decontaminated by dissolving the nickel and the technetium into an aqueous acid solution while introducing a graphite or activated carbon powder into the acid to immediately adsorb the dissolving technetium. The technetium-contaminated powder is separated from the aqueous acid solution and the nickel is then electrowon from the solution. The depleted acid solution is then recycled back to the dissolution step.
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