| 摘要 |
A process for the preparation of finely divided ferrites of the general formula MeFe2O4 (I) where Me=aMn+bNi+cZn+dCo+eFe(II), and the atomic weight ratios a, b, c, d and e are each from 0 to 1 and their sum is 1, or M12Me12Fe12O22 (II) where M1 is barium, strontium, calcium and/or lead, and Me1 is divalent manganese, copper, iron, cobalt, nickel, zinc, magnesium and/or equimolar amounts of lithium and trivalent iron, or M2(Me2Ti)xFe12-2xO19 (III) where M2 is barium or strontium, Me2 is zinc, nickel and/or cobalt and x is from 0 to 2.0, wherein the salts required for the particular composition are mixed with sodium carbonate and/or potassium carbonate, the mixture obtained is heated at 700 DEG to 1200 DEG C., and the resulting ferrite is then isolated by leaching with water.
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