METHOD OF PRODUCING NANOSTRUCTURED POWDER OF LITHIUM-ZINC-MANGANESE FERRITE Russian patent published in 2022 - IPC B22F9/24 B82Y30/00 C01G49/00 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to production of nanostructured powder of lithium-zinc-manganese ferrite. Method involves mixing initial reagents containing iron, Fe, manganese Mn, zinc Zn, lithium Li with deionised water to form a solution. Obtaining of nanostructured powder from it and its heating at temperature of 600–800 °C for 2–6 hours and further grinding. When mixing with deionised water, iron nitrate Fe(NO₃)_3, manganese nitrate Mn(NO₃)_2, zinc nitrate Zn(NO₃)₂, lithium nitrate LiNO₃ and additionally glycine H₂NCH₂COOH to form solution containing 0.012–0.016 mol/l of lithium nitrate, 0.018–0.022 mol/l of zinc nitrate, 0.004–0.005 mol/l of manganese nitrate, 0.048–0.052 mol/l iron nitrate and 0.075–0.26 mol/l of glycine. Nanostructured powder is obtained by evaporating the obtained solution to form a gel and heating it with continuous stirring to a flash point. Obtained nanostructured powder of lithium-zinc-manganese ferrite is ground for 2–8 hours.

EFFECT: obtaining magnetically soft ferrites with nanoparticles of uniform size, with developed specific surface area.

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