Patents
The invention relates to a process for the continuous production of sinteractive lanthanum chromite based oxides. The invention describes a novel process for the continuous production of nano crystalline ceramic oxides, more specifically nano crystalline calcium substituted lanthanum chromite (Lai.xCaxCrO3 where x varies from 0.1 to 0.3) through spray pyrolysis of a precursor solution containing metal salts such as nitrates and a carboxylic acid such as citric acid and another complexing agent such as glycine that can undergo a controlled exothermic anionic oxidation- reduction reaction leading to auto-ignition (self-ignition) wherein a part of the heat evolved during the auto-ignition is utilized for formation of the oxide phase.