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
• OSTI ID: 5533043
• Country of Publication: United States
• Language: English

Related Subjects

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