A kind of flux and molten salt to the reaction medium of high performance synthetic methods of barium ferrite

The present invention relates to a method for preparing barium ferrite material. A kind of flux and molten salt reaction medium is a method of high-performance synthetic barium ferrite, characterized in that it comprises the following steps: 1) the ferric oxide and barium carbonate in a molar ratio of Fe3 + :Ba2 + 10 ~ 12: 1 were weighed and mixed to obtain a reaction product; 2) molar ratio of NaCl and KCl is 1:1 Weigh NaCl and KCl to give a mixed salt thereof; 3) the total mass of mixed salt / total mass of reactants = 1 to 6, the reaction mixture was mixed with salt, ball milling, and dried in a covered alumina crucible was placed 750 ℃ ​​~ 1100 ℃ calcined 1 ~ 3h; 4) after completion of the reaction, cool to room temperature, washed, and dried, to obtain barium ferrite ferrite. This method has a simple process, low synthesis temperature characteristics, excellent properties of the obtained barium ferrite.