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Method of Preparing Hydrous Hafnium, Cerium, or Aluminum Oxide Gels and Spherules

Oak Ridge National Laboratory

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Technology Marketing Summary

An internal gelatin process for preparing hydrous hafnium, cerium, or aluminum oxide
microspheres was invented at ORNL. The invention is a type of sol-gel process that
solidifies droplets of solution as they enter into a warm environment. The resulting gel
spheres have been proven to be structurally strong.
 

Description

After washing treatments, the gel microspheres can either be air-dried for use as
engineered ion-exchange materials or, depending on the metal, dried, calcined,
and sintered to become ceramic microspheres for use as nuclear fuel, homogenous
catalysts, catalyst carriers, getters, filtering materials, or dielectrics. The hafnium oxide
samples show particularly high crush strength after washing and sintering and have
been suggested by the inventor for use as abrasion-resistant microspheres for grinding
other materials.

Benefits
  • Simple, low cost preparation
  • Structurally strong material
Applications and Industries
  • Ion-exchange materials
  • Nuclear fuel
  • Homogenous catalysts
  • Catalyst carriers
  • Getters
  • Filtering materials
  • Dielectrics
  • Material grinders
More Information

Patents
Jack L. Collins, Rodney D. Hunt, and Frederick C. Montgomery, Formulation and Method for Preparing Gels Comprising Hydrous Hafnium Oxide, U.S. Patent Application 12/683,942, filed January 7, 2010.

Jack L. Collins and Anthony Chi, Formulation and Method for Preparing Gels Comprising Hydrous Cerium Oxide, U.S. Patent Application 12/683,934, filed January 7, 2010.

Jack L. Collins, Formulation and Method for Preparing Gels Comprising Hydrous Aluminum Oxide, U.S. Patent Application 12/683,925, filed January 7, 2010.

Lead Inventor
Jack L. Collins
Nuclear Science and Technology Division
Oak Ridge National Laboratory

Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Patent 8,436,052
Patent
8,436,052
Formulation and method for preparing gels comprising hydrous cerium oxide
Formulations useful for preparing hydrous cerium oxide gels contain a metal salt including cerium, an organic base, and a complexing agent. Methods for preparing gels containing hydrous cerium oxide include heating a formulation to a temperature sufficient to induce gel formation, where the formulation contains a metal salt including cerium, an organic base, and a complexing agent.
Oak Ridge National Laboratory 05/07/2013
Issued
Patent 8,501,825
Patent
8,501,825
Formulation and method for preparing gels comprising hydrous hafnium oxide
Formulations useful for preparing hydrous hafnium oxide gels contain a metal salt including hafnium, an acid, an organic base, and a complexing agent. Methods for preparing gels containing hydrous hafnium oxide include heating a formulation to a temperature sufficient to induce gel formation, where the formulation contains a metal salt including hafnium, an acid, an organic base, and a complexing agent.
Oak Ridge National Laboratory 08/06/2013
Issued
Patent 8,753,534
Patent
8,753,534
Formulation and method for preparing gels comprising hydrous aluminum oxide
Formulations useful for preparing hydrous aluminum oxide gels contain a metal salt including aluminum, an organic base, and a complexing agent. Methods for preparing gels containing hydrous aluminum oxide include heating a formulation to a temperature sufficient to induce gel formation, where the formulation contains a metal salt including aluminum, an organic base, and a complexing agent.
Oak Ridge National Laboratory 06/17/2014
Issued
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
1908, 1909, 1910DevelopmentAvailable09/27/201209/27/2012

Contact ORNL About This Technology

To: Eugene Cochran<cochraner@ornl.gov>