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Title: Sol-gel derived sorbents

Abstract

Described is a method for producing copolymerized sol-gel derived sorbent particles for the production of copolymerized sol-gel derived sorbent material. The method for producing copolymerized sol-gel derived sorbent particles comprises adding a basic solution to an aqueous metal alkoxide mixture for a pH.ltoreq.8 to hydrolyze the metal alkoxides. Then, allowing the mixture to react at room temperature for a precalculated period of time for the mixture to undergo an increased in viscosity to obtain a desired pore size and surface area. The copolymerized mixture is then added to an immiscible, nonpolar solvent that has been heated to a sufficient temperature wherein the copolymerized mixture forms a solid upon the addition. The solid is recovered from the mixture, and is ready for use in an active sampling trap or activated for use in a passive sampling trap.

Inventors:
;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174575
Patent Number(s):
6645908
Application Number:
09/685,223
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Sigman, Michael E., and Dindal, Amy B. Sol-gel derived sorbents. United States: N. p., 2003. Web.
Sigman, Michael E., & Dindal, Amy B. Sol-gel derived sorbents. United States.
Sigman, Michael E., and Dindal, Amy B. Tue . "Sol-gel derived sorbents". United States. https://www.osti.gov/servlets/purl/1174575.
@article{osti_1174575,
title = {Sol-gel derived sorbents},
author = {Sigman, Michael E. and Dindal, Amy B.},
abstractNote = {Described is a method for producing copolymerized sol-gel derived sorbent particles for the production of copolymerized sol-gel derived sorbent material. The method for producing copolymerized sol-gel derived sorbent particles comprises adding a basic solution to an aqueous metal alkoxide mixture for a pH.ltoreq.8 to hydrolyze the metal alkoxides. Then, allowing the mixture to react at room temperature for a precalculated period of time for the mixture to undergo an increased in viscosity to obtain a desired pore size and surface area. The copolymerized mixture is then added to an immiscible, nonpolar solvent that has been heated to a sufficient temperature wherein the copolymerized mixture forms a solid upon the addition. The solid is recovered from the mixture, and is ready for use in an active sampling trap or activated for use in a passive sampling trap.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {11}
}

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Works referenced in this record:

The Sol-Gel Preparation of Silica Gels
journal, July 1994


Infrared study of methanol adsorption on Aerosil. II. Physical adsorption at room temperature
journal, August 1967


Organometallic-Derived Ceramics
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Reactive silica. I. Formation of a reactive silica by the thermal collapse of the methoxy groups of methylated Aerosil
journal, February 1969


Inorganic-Organic Hybrid Aerogels
journal, January 1994


Infrared study of methanol adsorption on Aerosil. I. Chemisorption at room temperature
journal, August 1967


Capture of Greenhouse Gases by Novel Aerogel Sorbents Prepared by Sol-Gel Technology
book, January 1993

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