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METHOD OF PREPARING SUPERFINE IRON POWDERS
METHOD OF PREPARING SUPERFINE IRON POWDERS
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机译:制备超细铁粉的方法
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摘要
FIELD: iron powders. SUBSTANCE: invention relates to iron powders useful as magnetic materials, catalysts, adsorbents, reinforcing additives, and drug fillers. Mixed are iron ion-containing solutions, polysaccharides, and, as precipitator, oxalic acid aqueous solution, acetic acid, and one-, two-, three-, or polyatomic alcohol. Iron oxalate precipitate is dried in air and then thermally decomposed under hydrogen atmosphere at 300-400 C. Iron powders with particle size 0.05 to 0.3 mcm can be additionally magnetized to enhance their bactericide activity in magnetic fields 130-200 kA/m. EFFECT: improved preparation procedure. 4 cl
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机译:领域:铁粉。物质本发明涉及用作磁性材料,催化剂,吸附剂,增强添加剂和药物填充剂的铁粉。混合的是含铁离子的溶液,多糖,以及作为沉淀剂的草酸水溶液,乙酸和一元,二元,三元或多元原子的醇。将草酸铁沉淀物在空气中干燥,然后在氢气气氛下于300-400 C进行热分解。可以另外磁化粒径为0.05至0.3 mcm的铁粉,以增强其在130-200 kA / m磁场中的杀菌活性。效果:改进了制备程序。 4厘升
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