METHOD FOR OBTAINING ULTRA-FINE NANO SIZED POWDER OF TRANSITION METAL OXIDES OR MIXTURE OF TRANSITION METAL OXIDES

摘要

FIELD: metallurgy.;SUBSTANCE: method involves neutralisation of solution of sulphate compound of transition metal or solution of sulphate compounds of transition metals, separation of extrinsic sulphates from the obtained metal hydroxide or from the obtained metal hydroxides, and subsequent treatment of the metal hydroxide or metal hydroxides. Neutralisation of the solution is achieved at pH in the range of 7.0-7.5, and subsequent treatment is done using microwave radiation with frequency in the 2450-3000 MHz range, with 600-700 W power.;EFFECT: shorter duration of process of obtaining powders and lower power input.;3 ex, 3 dwg