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US 5,075,090 AGranted
Process for preparing small particle size mixed metal oxides
AssigneeVista Chemical Company
InventorsDuane J. Lewis, Galen K. Madderra
Life of this patent
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Abstract
A process for preparing a particulate metal oxide of small particle size wherein a combustible organometallic compound alone or in admixture with a combustible organic liquid carrier is introduced into a combustion zone and combusted in a combustion supporting gas to produce particles of metal oxide, the combustion being carried out under reaction conditions so as to effect calcination of the metal oxide particles prior to condensation of the particles in the bulk phase.
Claims8
A process for preparing a particulate mixed oxide comprising:
- providing a combustible liquid, feed stream containing at least two combustible compounds selected from the group consisting of organometallic compounds and organo silicon compounds, which will burn in the presence of a combustion supporting gas to form the corresponding mixed oxide of said compounds;
- atomizing said feed stream in a combustion zone in the presence of a combustion supporting gas;
- igniting said atomized feed stream and said combustion supporting gas in said combustion zone to effect combustion of said compounds and produce discrete, submicron size, unagglomerated particles of said mixed oxide, said combustion of said compounds being conducted at temperatures to effect calcination of said particles of said mixed oxide prior to said particles condensing to a bulk phase;
- and
- collecting said calcined particles of said mixed oxide.
2 more elements
Dependencies are inferred from the claim text.