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Title: Radioactive waste material disposal

The invention is a process for direct conversion of solid radioactive waste, particularly spent nuclear fuel and its cladding, if any, into a solidified waste glass. A sacrificial metal oxide, dissolved in a glass bath, is used to oxidize elemental metal and any carbon values present in the waste as they are fed to the bath. Two different modes of operation are possible, depending on the sacrificial metal oxide employed. In the first mode, a regenerable sacrificial oxide, e.g., PbO, is employed, while the second mode features use of disposable oxides such as ferric oxide. 3 figs.
Inventors:
; ;
Issue Date:
OSTI Identifier:
119036
Assignee:
PTO; SCA: 052001; PA: EDB-95:146576; SN: 95001477067
Patent Number(s):
US 5,461,185/A/
Application Number:
PAN: 8-230,156
Contract Number:
AC05-84OR21400
Resource Relation:
Other Information: PBD: 24 Oct 1995
Research Org:
Lockheed Martin Energy Syst Inc
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; SPENT FUELS; VITRIFICATION; OXIDATION; FUEL CANS; RADIOACTIVE WASTE PROCESSING; LEAD OXIDES; WASTE FORMS; ELECTROCHEMICAL CELLS; IRON OXIDES