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Title: 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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Works referenced in this record:

The polymorphism of some rare earth oxides and their reaction with water
journal, May 1964


The possibilities of237Np and241Am disposal by transmutation in their irradiation with thermal neutrons in porous immobilizing agents
journal, March 1991


Development and Testing of a New Porous Crystalline Matrix (Gubka) for Stabilizing Actinide Solutions
journal, January 1999


The study of composition of novel high temperature catalysts for oxidative conversion of methane
journal, July 1998