Method and article for primary containment of cesium wastes. [DOE patent application]
Abstract
A method for producing a cesium-retentive waste form, characterized by a high degree of compositional stability and mechanical integrity, is provided by subjecting a cesium-loaded zeolite to heat under conditions suitable for stabilizing the zeolite and immobilizing the cesium, and coating said zeolite for sufficient duration within a suitable environment with at least one dense layer of pyrolytic carbon to seal therein said cesium to produce a final, cesium-bearing waste form. Typically, the zolite is stabilized and the cesium immobilized in less than four hours by confinement within an air environment maintained at about 600/sup 0/C. Coatings are thereafter applied by confining the calcined zeolite within a coating environment comprising inert fluidizing and carbon donor gases maintained at 1000/sup 0/C for a suitable duration.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 5364115
- Application Number:
- ON: DE82015903
- Assignee:
- Dept. of Energy
- DOE Contract Number:
- W-7405-ENG-26
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; PYROLYTIC CARBON; RADIOACTIVE WASTE PROCESSING; CESIUM; SOLIDIFICATION; SOLID WASTES; COATINGS; HIGH TEMPERATURE; VERY HIGH TEMPERATURE; ZEOLITES; ALKALI METALS; CARBON; ELEMENTS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MANAGEMENT; MATERIALS; METALS; MINERALS; NONMETALS; PHASE TRANSFORMATIONS; PROCESSING; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; 052001* - Nuclear Fuels- Waste Processing
Citation Formats
Angelini, P, Lackey, W J, Stinton, D P, Blanco, R E, Bond, W D, and Arnold, Jr, W D. Method and article for primary containment of cesium wastes. [DOE patent application]. United States: N. p., 1981.
Web.
Angelini, P, Lackey, W J, Stinton, D P, Blanco, R E, Bond, W D, & Arnold, Jr, W D. Method and article for primary containment of cesium wastes. [DOE patent application]. United States.
Angelini, P, Lackey, W J, Stinton, D P, Blanco, R E, Bond, W D, and Arnold, Jr, W D. Thu .
"Method and article for primary containment of cesium wastes. [DOE patent application]". United States.
@article{osti_5364115,
title = {Method and article for primary containment of cesium wastes. [DOE patent application]},
author = {Angelini, P and Lackey, W J and Stinton, D P and Blanco, R E and Bond, W D and Arnold, Jr, W D},
abstractNote = {A method for producing a cesium-retentive waste form, characterized by a high degree of compositional stability and mechanical integrity, is provided by subjecting a cesium-loaded zeolite to heat under conditions suitable for stabilizing the zeolite and immobilizing the cesium, and coating said zeolite for sufficient duration within a suitable environment with at least one dense layer of pyrolytic carbon to seal therein said cesium to produce a final, cesium-bearing waste form. Typically, the zolite is stabilized and the cesium immobilized in less than four hours by confinement within an air environment maintained at about 600/sup 0/C. Coatings are thereafter applied by confining the calcined zeolite within a coating environment comprising inert fluidizing and carbon donor gases maintained at 1000/sup 0/C for a suitable duration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {9}
}