Patent ID: 6387341
Filing Date: 2002-05-14
Classification: B01J,C01B,C01G,C01P,Y02P

Abstract:
Method of manufacturing a product based on a simple or mixed metal oxide, or an oxide of silicon, from a charge of precursor(s) comprising one or more organo-metallic precursors, said method comprising the step of bringing the charge of precursor(s) into contact with a reaction medium comprising supercritical CO2, at a temperature of 31 to 100Â° C. and a supercritical pressure of 107 to 5Ã—107 Pa, reacting said charge of precursor(s) in said reaction medium to form a product based on a simple or mixed metal oxide, or an oxide of silicon; and separating said product from said reaction medium by reducing the pressure of the supercritical CO2 to a pressure lower than the supercritical pressure.