Method for preparing rare-earth-doped manganese-zinc ferrite material

[0022] A preparation method of a rare earth-doped manganese-zinc ferrite material, comprising the steps of:

[0023] S1, adding the main components of manganese oxide, zinc oxide, and iron oxide into a ball mill for ball milling to obtain a mixture A; wherein the molar ratio of manganese oxide, zinc oxide, and iron oxide is 35:55:9;

[0024] S2, pre-calcining the mixture A, and then cooling to room temperature to obtain a pre-calcined material;

[0025] S3. Add calcined material, vanadium oxide, niobium pentoxide, bismuth oxide, molybdenum oxide, phosphorus pentoxide, copper oxide, and composite rare earth additives into a ball mill for secondary ball milling, and dry to obtain mixture B; the composite rare earth The additive is composed of cerium oxide, yttrium oxide and lanthanum oxide;

[0026] S4, add polyvinyl alcohol solution to mixing granulation in mixture B, then pass through 40 mesh sieves, obtain granular material; The mass ratio of mixture B and polyvinyl alcohol ...

[0030] A preparation method of a rare earth-doped manganese-zinc ferrite material, comprising the steps of:

[0031] S1, adding the main components of manganese oxide, zinc oxide, and iron oxide into a ball mill for ball milling to obtain a mixture A; wherein the molar ratio of manganese oxide, zinc oxide, and iron oxide is 37:53:11;

[0032] S2, pre-calcining the mixture A, and then cooling to room temperature to obtain a pre-calcined material;

[0033] S3. Add calcined material, vanadium oxide, niobium pentoxide, bismuth oxide, molybdenum oxide, phosphorus pentoxide, copper oxide, and composite rare earth additives into a ball mill for secondary ball milling, and dry to obtain mixture B; the composite rare earth The additive is composed of cerium oxide, yttrium oxide and lanthanum oxide;

[0034] S4, add polyvinyl alcohol solution to mixing granulation in mixture B, then pass 80 mesh sieves, obtain granular material; The mass ratio of mixture B and polyvinyl alcohol solutio...

[0038] A preparation method of a rare earth-doped manganese-zinc ferrite material, comprising the steps of:

[0039] S1. Add the main components of manganese oxide, zinc oxide, and iron oxide into a ball mill for ball milling to obtain mixture A; wherein the molar ratio of manganese oxide, zinc oxide, and iron oxide is 35:55:9; the ball mill speed is 150r / min, and the ball milling time for 6h;

[0040] S2. Pre-calcining the mixture A, and then cooling to room temperature to obtain a pre-calcining material; the pre-calcining temperature is 860° C., and the pre-calcining time is 90 minutes;

[0041] S3. Add pre-fired material, vanadium oxide, niobium pentoxide, bismuth oxide, molybdenum oxide, phosphorus pentoxide, copper oxide, and composite rare earth additives into a ball mill for secondary ball milling, and dry to obtain mixture B; pre-fired material, The mass ratio of vanadium oxide, niobium pentoxide, bismuth oxide, molybdenum oxide, phosphorus pentoxide, copper oxide, an...