Production process of recycled Mn-Zn ferrite

摘要

The present invention provides a production process of a Mn-Zn ferrite that enables wastes of sintered cores to be recycled without serious difficulties in sintering. The production process comprises recycling a powder obtained by milling a sintered Mn-Zn ferrite, thereby obtaining a sintered core having a component composition including 44.0 to 49.8 mol% Fe2O3, 4.0 to 26.5 mol% ZnO, 1.0 to 3.0 mol% CoO, 0.02 to 1.00 mol% Mn2O3 and a remainder MnO.