REFINING PROCESS FOR PRODUCING LOW ALPHA TIN
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United States of America Patent
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Issued Date -
Dec 26, 2013
app pub date -
Mar 13, 2013
filing date -
Jun 20, 2012
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Abandoned
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Abstract
A method for purifying tin includes exposing an electrolytic solution comprising tin to an ion exchange resin and depositing electrorefined tin from the electrolytic solution. The deposited electrorefined tin has alpha particle emissions of less than about 0.01 counts/hour/cm2 immediately after the deposition step, and an alpha emissivity of less than about 0.01 counts/hour/cm2 at least 90 days after the deposition step.
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