Method for preparing a mixture of powdered metal oxides from nitrates thereof in the nuclear industry

Abstract From the Canadian patent

A thermal decomposition method useful in the nuclear industry for preparing a powdered mixture of metal oxides having suitable reactivity from nitrates thereof in the form of an aqueous solution or a mixture of solids. According to the method the solution or the mixture of solids is thermomechanically contacted with a gaseous fluid in the contact area of a reaction chamber said gaseous fluid being fed into the reaction chamber at the same time as the solution or mixture at a temperature no lower than the decomposition temperature of the nitrates and having a mechanical energy high enough to generate a fine spray of the solution or a fine dispersion of the solid mixture and instantly …