Patent ID: 6391273
Filing Date: 2002-05-21
Classification: B82Y,C01B,C01F,C01P,C09K

Abstract:
A process for producing oxidic nanocrystals, which comprises the following steps:a) introducing host lattice ions as metalorganic complexes or volatile inorganic compounds into at least a first vaporizer; b) introducing doping ions as metalorganic complexes or volatile inorganic compounds into a second vaporizer; c) converting the complexes or compounds into a gas phase; d) transporting the resultant gas phase, with the aid of one or more carrier gases and/or carrier gas mixtures, into at least one heating zone of at least one reactor, and supplying oxygen or an oxygen-containing gas mixture; and e) breaking down the complexes or compounds in the heating zone of the reactor at a pressure of between 1-1000 mbar, and immediately forming the oxidic nanocrystals.