| abstract |
Process for the preparation of mixed oxides containing lanthanum, strontium and manganese of the general formula (La¶1-x¶Sr¶x¶) ¶y¶MnO¶3¶, in which x is independently a number from 0.01 to 0.99 and y is a number from 0.01 to 1, characterized in that the water is largely removed by convection drying from an aqueous solution of lanthanum, strontium and manganese salts and then the powder or granules obtained are converted into the mixed oxides by heating, the Weight ratios of the salts are selected so that an element ratio of La: Sr = (1 - x): x and (La¶1-x¶Sr¶x¶): Mn = y: 1 is established in the mixed oxides. |