Method for making metal oxides

Preparing metallic oxide powders having Brunauer-Emmett-Teller (BET) surface, comprises reacting an aerosol with oxygen and separating gaseous material powder, where at least one aerosol raw material and at least one atomization gas are provided via a nozzle and a multi-material nozzle, respectively...

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Bibliographische Detailangaben
Hauptverfasser:	KATUSIC, STIPAN, STAAB, EDWIN, KRESS, PETER, KRAEMER, MICHAEL, KROELL, MICHAEL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS COMPOUNDS THEREOF DYES INORGANIC CHEMISTRY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NANOTECHNOLOGY NATURAL RESINS NON-METALLIC ELEMENTS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES POLISHING COMPOSITIONS OTHER THAN FRENCH POLISH SKI WAXES SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Preparing metallic oxide powders having Brunauer-Emmett-Teller (BET) surface, comprises reacting an aerosol with oxygen and separating gaseous material powder, where at least one aerosol raw material and at least one atomization gas are provided via a nozzle and a multi-material nozzle, respectively, the volume related average diameter of the aerosol is 30-100 mu m and the number of aerosol drops that are larger than 100 mu m amounts up to 10%. Preparation of metallic oxide powders having Brunauer-Emmett-Teller (BET) surface of at least 20 m 2>/g comprises reacting an aerosol with oxygen in a reaction area at above 700[deg]C and separating gaseous material powder, where at least one of aerosol raw material, in liquid form or as solution, is provided via a nozzle and at least one atomization gas is provided via a multi-material nozzle, the volume related average diameter D 30 of the aerosol is 30-100 mu m and the number of aerosol drops, which are larger than 100 mu m, amounts up to 10%, related to the total number of the drops. An independent claim is included for the metallic oxide powder obtained by the method.