Investigation of lead-iron-phosphate glass for SRP waste

Technical Report · Wed Oct 01 04:00:00 EDT 1986

OSTI ID:6787650

Jantzen, C M

The search for a host solid for the immobilization of nuclear waste has focused on various vitreous waste forms. Recently, lead-iron-phosphate (LIP) glasses have been proposed for solidification of all types of HLLW. Investigation of this glass for vitrification of SRP waste demonstrated that the phosphate glass is incompatible with the current borosilicate glass technology. The durability of LIP glasses in deionized water was comparable to current borosilicate waste glass formulations, and the LIP glass has a low melt temperature. However, many of the defense waste constituents have low solubility in the phosphate melt, producing an inhomogeneous product. Also, the LIP melt is highly corrosive which prevents the use of current melter materials, in particular Inconel 690, and thus requires more exotic materials of construction such as platinum.

• Research Organization: Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
• DOE Contract Number: AC09-76SR00001
• OSTI ID: 6787650
• Report Number(s): DP-1729; ON: DE87006356
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
BOROSILICATE GLASS
CHALCOGENIDES
COMPARATIVE EVALUATIONS
GLASS
HIGH-LEVEL RADIOACTIVE WASTES
IRON COMPOUNDS
IRON OXIDES
LEAD COMPOUNDS
LEAD OXIDES
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHOSPHATE GLASS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
TRANSITION ELEMENT COMPOUNDS
WASTE FORMS
WASTES