High surface area metal oxide foams and method of producing the same
AssigneeCabot Corporation
InventorsMerrill Jordan, deceased, Steven R. Reznek, Matthew Neville, Brian A. Soucy, Bruce E. Mackay
Life of this patent
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Abstract
The present invention includes metal oxide foam particles and a method of making the same. A decomposable metal salt feed solution is injected into a hot atomizing gas. The mixture of hot atomizing gas and feed solution is maintained in the reactor until the feed solution converts to metal oxide foam particles. The metal oxide foam particles have a high specific surface area.
Claims16
A method for producing metal oxide foam particles in a reactor, the reactor including a burner section and a reaction section, said method comprising:
- injecting, in the burner section, a decomposable metal salt containing feed solution into a gas traveling through the burner section, the gas having a Mach number sufficient to kinetically atomize the decomposable metal salt containing feed solution;
- and
- maintaining, in the reaction section, the gas and the injected decomposable metal salt containing feed solution until the injected decomposable metal salt containing feed solution converts to metal oxide foam particles;
- wherein the temperature of the gas as the decomposable metal salt containing feed solution is injected therein during said injecting step is at least 700K.
A method for producing alumina containing foamed particles in a reactor, the reactor including a burner section and a reaction section, said method comprising:
- injecting, in the burner section a decomposable aluminum salt containing feed solution into an gas traveling through the burner section, the gas having a Mach number sufficient to kinetically atomize the decomposable aluminum salt containing feed solution;
- and
- maintaining, in the reaction section, the gas and the injected decomposable aluminum salt containing feed solution until the injected decomposable aluminum salt containing feed solution converts to alumina foam particles;
- wherein the temperature of the gas as the decomposable aluminum salt containing feed solution is injected therein during said injecting step is at least 700K.
Dependencies are inferred from the claim text.