一种铜渣回收制备铜锌铁氧体软磁材料的方法

Method for preparing copper zinc ferrite soft magnetic materials by copper slag recovery

Abstract

The invention discloses a method for preparing copper zinc ferrite soft magnetic materials by copper slag recovery, and belongs to the technical field of preparation of ferrite soft magnetic materials. The method comprises the following steps: milling and performing reduction calcination on waste copper slag containing 2% zinc, and preparing a magnetic alloy; dissolving a copper and iron alloy into sulfuric acid, precipitating through sodium hydroxide, and preparing ion-scale ferrite powders; and after that, mixing and calcining the ion-scale ferrite powders with a magnetic gel intermediate, and then soft magnetic composite materials can be prepared; and finally, entering a soft magnetic material lattice by a small amount of copper ions, making saturation magnetization to be increased continuously, and then the copper zinc ferrite soft magnetic materials with saturation magnetization can be prepared. The method for preparing copper zinc ferrite soft magnetic materials by the copper slag recovery provided by the invention has the following beneficial effects: the preparation steps are simple, the permeability and the Curie temperature of the obtained product are high, and compared with other similar products, the permeability and the Curie temperature are increased by 10% to 15%; besides, in a forming process, the dispersity is good, the material density distribution is uniform and the saturation field strength is as high as 32,000A/m.
本发明公开了一种铜渣回收制备铜锌铁氧体软磁材料的方法,属于铁氧体软磁材料制备技术领域领域。本发明通过将含锌量2%的废弃铜渣碾磨并还原煅烧,制备磁性合金,将铜铁合金溶于硫酸,通过氢氧化钠进行沉淀,制备离子级铁氧体粉末,随后将其与磁性凝胶中间体混合煅烧制备软磁复合材料,通过少量铜离子进入软磁材料晶格,使饱和磁化强度不断增加,制备得一种高饱和磁化强度铜锌铁氧体软磁材料。本发明的有益效果是:本发明制备步骤简单,所得产品磁导率和居里温度高较其他同类产品提高10~15%;在成型过程中分散性好,材料密度分布均匀,饱和场强度高达32000A/m。

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