FIELD: chemistry.
SUBSTANCE: method involves production of metal hydroxides via reverse precipitation, drying and calcination. To prevent local change in pH of the solution of the precipitation agent, the reverse precipitation method involves ultrasonic treatment of the solution of metal salts in an atomising nozzle through which the said solution passes before reacting with the solution of the precipitation agent. The solution of metal salts undergoes ultrasonic treatment which enables to disperse the solution to droplets with size smaller than 1.0 mcm.
EFFECT: fewer operations and increase in efficiency of the process of producing powder.
4 cl, 6 ex
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