Patent ID: 7893182
Filing Date: 2011-02-22
Classification: B01J,C01B

Abstract:
1. A method of forming a powder and/or discrete gel particles of a compound selected from the group of a metallic oxide, a metalloid oxide, a mixed oxide, an organometallic oxide, an organometalloid oxide, an organomixed oxide resin, and/or an organic resin from one or more respective organometallic precursor(s), organometalloid precursor(s) and/or organic precursors and mixtures thereof; comprising the steps of: i) passing a gas into a means for forming excited and/or unstable gas species; ii) treating said gas such that upon leaving said means the gas comprises excited and/or unstable gas species which are substantially free of electrical charges at a temperature of between 10° C. and 500° C.; iii) introducing a gaseous and/or liquid precursor which has not been subjected to steps (i) and (ii) into said excited and unstable gas species in a downstream region external to the means for forming excited and/or unstable gas, interaction between said precursor and said excited and unstable gas species resulting in the formation of a powder and/or discrete gelled particles; and iv) collecting resulting powder and/or discrete gelled particles, wherein the gaseous and/or liquid precursor is an organic compound or a mixture of organic compounds or a mixture of organic and organosilicon compounds.