Patent ID: 7828999
Filing Date: 2010-11-09
Classification: B01J,B82Y,C01B,C01F,C01G,C01P,C09C

Abstract:
1. A process for producing fine particles, comprising the steps of: introducing a material for producing the fine particles into a thermal plasma flame to make a vapor-phase mixture; and quenching the vapor-phase mixture to form the fine particles, wherein said step of introducing the material for producing the fine particles into the thermal plasma flame comprises the steps of: dispersing or dissolving the material for producing the fine particles in a dispersion medium or solvent containing a combustible material to prepare a dispersion; and making the dispersion into a form of droplets so as to introduce the dispersion in a droplet form into the thermal plasma flame, or dispersing the material for producing the fine particles with a carrier gas and a combustible material and introducing the dispersed material for producing the fine particles into the thermal plasma flame.