Phosphate glasses for radioactive, hazardous and mixed waste immobilization
Abstract
Lead-free phosphate glass compositions are provided which can be used to immobilize low level and/or high level radioactive wastes in monolithic waste forms. The glass composition may also be used without waste contained therein. Lead-free phosphate glass compositions prepared at about 900.degree. C. include mixtures from about 1 mole % to about 6 mole % iron (III) oxide, from about 1 mole % to about 6 mole % aluminum oxide, from about 15 mole % to about 20 mole % sodium oxide or potassium oxide, and from about 30 mole % to about 60 mole % phosphate. The invention also provides phosphate, lead-free glass ceramic glass compositions which are prepared from about 400.degree. C. to about 450.degree. C. and which includes from about 3 mole % to about 6 mole % sodium oxide, from about 20 mole % to about 50 mole % tin oxide, from about 30 mole % to about 70 mole % phosphate, from about 3 mole % to about 6 mole % aluminum oxide, from about 3 mole % to about 8 mole % silicon oxide, from about 0.5 mole % to about 2 mole % iron (III) oxide and from about 3 mole % tomore »
- Inventors:
-
- Middle Island, NY
- Stony Brook, NY
- Wading River, NY
- Issue Date:
- Research Org.:
- Associated Universities, Inc., Upton, NY (United States)
- OSTI Identifier:
- 871995
- Patent Number(s):
- 5840638
- Application Number:
- 08/772,982
- Assignee:
- Brookhaven Science Associates (Upton, NY)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- AC02-76CH00016
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- phosphate; glasses; radioactive; hazardous; mixed; waste; immobilization; lead-free; glass; compositions; provided; immobilize; level; wastes; monolithic; forms; composition; contained; therein; prepared; 900; degree; mixtures; mole; iron; iii; oxide; aluminum; 15; 20; sodium; potassium; 30; 60; provides; ceramic; 400; 450; 50; 70; silicon; method; lead-free phosphate; monolithic waste; glass compositions; waste form; glass ceramic; mixed waste; aluminum oxide; radioactive waste; contained therein; silicon oxide; glass composition; radioactive wastes; phosphate glass; sodium oxide; phosphate glasses; level radioactive; waste forms; compositions prepared; waste immobilization; /501/588/
Citation Formats
Cao, Hui, Adams, Jay W, and Kalb, Paul D. Phosphate glasses for radioactive, hazardous and mixed waste immobilization. United States: N. p., 1998.
Web.
Cao, Hui, Adams, Jay W, & Kalb, Paul D. Phosphate glasses for radioactive, hazardous and mixed waste immobilization. United States.
Cao, Hui, Adams, Jay W, and Kalb, Paul D. Tue .
"Phosphate glasses for radioactive, hazardous and mixed waste immobilization". United States. https://www.osti.gov/servlets/purl/871995.
@article{osti_871995,
title = {Phosphate glasses for radioactive, hazardous and mixed waste immobilization},
author = {Cao, Hui and Adams, Jay W and Kalb, Paul D},
abstractNote = {Lead-free phosphate glass compositions are provided which can be used to immobilize low level and/or high level radioactive wastes in monolithic waste forms. The glass composition may also be used without waste contained therein. Lead-free phosphate glass compositions prepared at about 900.degree. C. include mixtures from about 1 mole % to about 6 mole % iron (III) oxide, from about 1 mole % to about 6 mole % aluminum oxide, from about 15 mole % to about 20 mole % sodium oxide or potassium oxide, and from about 30 mole % to about 60 mole % phosphate. The invention also provides phosphate, lead-free glass ceramic glass compositions which are prepared from about 400.degree. C. to about 450.degree. C. and which includes from about 3 mole % to about 6 mole % sodium oxide, from about 20 mole % to about 50 mole % tin oxide, from about 30 mole % to about 70 mole % phosphate, from about 3 mole % to about 6 mole % aluminum oxide, from about 3 mole % to about 8 mole % silicon oxide, from about 0.5 mole % to about 2 mole % iron (III) oxide and from about 3 mole % to about 6 mole % potassium oxide. Method of making lead-free phosphate glasses are also provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 24 00:00:00 EST 1998},
month = {Tue Nov 24 00:00:00 EST 1998}
}
Works referenced in this record:
Review of Progress in the Development of Sphene-Based Glass-Ceramics
journal, January 1985
- Hayward, P. J.
- MRS Proceedings, Vol. 50
Physical and chemical characteristics of lead-iron phosphate nuclear waste glasses
journal, January 1986
- Sales, B. C.; Boatner, L. A.
- Journal of Non-Crystalline Solids, Vol. 79, Issue 1-2
Preliminary assessment of candidate immobilization technologies for retrieved single-shell tank wastes
report, January 1992
- Wiemers, K. D.; Mendel, J. E.; Kruger, A. A.
Development of Sphene-Based Glass Ceramics Tailored for Canadian Waste Disposal Conditions
journal, January 1981
- Hayward, Peter J.; Cecchetto, E. V.
- MRS Proceedings, Vol. 6