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Low melting high lithia glass compositions and methods

  • US 6,624,103 B2
  • Filed: 05/08/2001
  • Issued: 09/23/2003
  • Est. Priority Date: 05/02/1998
  • Status: Expired due to Fees
First Claim
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1. An alkali oxide-lime-silica glass suitable for immobilizing radioactive, hazardous, or mixed waste, consisting essentially of:

  • (a) SiO2 in an amount ranging from about 46 wt % to about 66 wt %;

    (b) CaO in an amount ranging from about 5 wt % to about 28 wt %;

    (c) Na2O in an amount ranging from about 1.9 wt % to about 25 wt %;

    (d) Li2O in an amount ranging from about 3 wt % to about 11 wt %; and

    (e) a uranium oxide selected from the group consisting of U3O8 in the range from about 0.5 wt % to about 12 wt % and UO2 in an amount ranging from about 0.4 wt % to about 12 wt %.

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