Lead iron phosphate glass as a containment medium for disposal of high-level nuclear waste

Patent · Tue Jul 11 00:00:00 EDT 1989

OSTI ID:5533043

Boatner, L A; Sales, B C

This patent describes lead-iron phosphate glasses containing a high level of Fe/sub 2/O/sub 3/ for use as a storage medium for high-level radioactive nuclear waste. By combining lead-iron phosphate glass with various types of simulated high-level nuclear waste, a highly corrosion resistant, homogeneous, easily processed glass can be formed. For corroding solutions at 90{sup 0}C, with solution pH values in the range between 5 and 9, the corrosion rate of the lead-iron phosphate nuclear waste glass is at least 10/sup 2/ to 10/sup 3/ times lower than the corrosion rate of a comparable borosilicate nuclear waste glass. The presence of Fe/sub 2/O/sub 3/ in forming the lead-iron phosphate glass is critical. The lead-iron phosphate waste glasses can be prepared with minimal modification of the technology developed for processing borosilicate glass nuclear wasteforms.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4847008
• Application Number: TRN: 89-029439
• OSTI ID: 5533043
• Resource Relation: Patent File Date: 23 May 1986
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
36 MATERIALS SCIENCE
GLASS
PHYSICAL RADIATION EFFECTS
HIGH-LEVEL RADIOACTIVE WASTES
CONTAINMENT
RADIOACTIVE WASTE DISPOSAL
BOROSILICATE GLASS
CORROSION
GAMMA RADIATION
IRON
LEAD
PH VALUE
PHOSPHATES
RADIOACTIVE WASTE STORAGE
WASTE FORMS
CHEMICAL REACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
IONIZING RADIATIONS
MANAGEMENT
MATERIALS
METALS
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
RADIATION EFFECTS
RADIATIONS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
STORAGE
TRANSITION ELEMENTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE STORAGE
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
050900 - Nuclear Fuels- Transport
Handling
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360605 - Materials- Radiation Effects