Mitigation of secondary phase formation during waste vitrification
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United States of America Patent
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Sep 10, 2013
Grant Date -
Nov 11, 2010
app pub date -
Sep 15, 2008
filing date -
Sep 20, 2007
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Abstract
A method for vitrification of high level waste to reduce the formation of persistent secondary phases comprising the steps of providing a high level waste for vitrification; providing a glass frit additive for mixing with said high level waste; redistributing selected constituents of said glass frit for mixing separately as raw chemicals with said high level waste; and, feeding said high level waste, said glass frit additive, and the redistributed glass frit constituents to a melter for vitrification of said high level waste so that formation of secondary phases is suppressed.
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