Open-cell glass crystalline porous material
Abstract
An open-cell glass crystalline porous material made from hollow microspheres which are cenospheres obtained from fly ash, having an open-cell porosity of up to 90 vol. % is produced. The cenospheres are separated into fractions based on one or more of grain size, density, magnetic or non-magnetic, and perforated or non-perforated. Selected fractions are molded and agglomerated by sintering with a binder at a temperature below the softening temperature, or without a binder at a temperature about, or above, the softening temperature but below the temperature of liquidity. The porous material produced has an apparent density of 0.3-0.6 g/cm.sup.3, a compressive strength in the range of 1.2-3.5 MPa, and two types of openings: through-flow wall pores in the cenospheres of 0.1-30 micrometers, and interglobular voids between the cenospheres of 20-100 micrometers. The porous material of the invention has properties useful as porous matrices for immobilization of liquid radioactive waste, heat-resistant traps and filters, supports for catalysts, adsorbents and ion-exchangers.
- Inventors:
- Issue Date:
- Research Org.:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174645
- Patent Number(s):
- 6667261
- Application Number:
- 10/144,984
- Assignee:
- The United States of America as represented by the United States Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
- DOE Contract Number:
- AC07-99ID13727
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2002 May 15
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Anshits, Alexander G., Sharonova, Olga M., Vereshchagina, Tatiana A., Zykova, Irina D., Revenko, Yurii A., Tretyakov, Alexander A., Aloy, Albert S., Lubtsev, Rem I., Knecht, Dieter A., Tranter, Troy J., and Macheret, Yevgeny. Open-cell glass crystalline porous material. United States: N. p., 2003.
Web.
Anshits, Alexander G., Sharonova, Olga M., Vereshchagina, Tatiana A., Zykova, Irina D., Revenko, Yurii A., Tretyakov, Alexander A., Aloy, Albert S., Lubtsev, Rem I., Knecht, Dieter A., Tranter, Troy J., & Macheret, Yevgeny. Open-cell glass crystalline porous material. United States.
Anshits, Alexander G., Sharonova, Olga M., Vereshchagina, Tatiana A., Zykova, Irina D., Revenko, Yurii A., Tretyakov, Alexander A., Aloy, Albert S., Lubtsev, Rem I., Knecht, Dieter A., Tranter, Troy J., and Macheret, Yevgeny. Tue .
"Open-cell glass crystalline porous material". United States. https://www.osti.gov/servlets/purl/1174645.
@article{osti_1174645,
title = {Open-cell glass crystalline porous material},
author = {Anshits, Alexander G. and Sharonova, Olga M. and Vereshchagina, Tatiana A. and Zykova, Irina D. and Revenko, Yurii A. and Tretyakov, Alexander A. and Aloy, Albert S. and Lubtsev, Rem I. and Knecht, Dieter A. and Tranter, Troy J. and Macheret, Yevgeny},
abstractNote = {An open-cell glass crystalline porous material made from hollow microspheres which are cenospheres obtained from fly ash, having an open-cell porosity of up to 90 vol. % is produced. The cenospheres are separated into fractions based on one or more of grain size, density, magnetic or non-magnetic, and perforated or non-perforated. Selected fractions are molded and agglomerated by sintering with a binder at a temperature below the softening temperature, or without a binder at a temperature about, or above, the softening temperature but below the temperature of liquidity. The porous material produced has an apparent density of 0.3-0.6 g/cm.sup.3, a compressive strength in the range of 1.2-3.5 MPa, and two types of openings: through-flow wall pores in the cenospheres of 0.1-30 micrometers, and interglobular voids between the cenospheres of 20-100 micrometers. The porous material of the invention has properties useful as porous matrices for immobilization of liquid radioactive waste, heat-resistant traps and filters, supports for catalysts, adsorbents and ion-exchangers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {12}
}
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