发明名称 MEJORAS INTRODUCIDAS EN UN PROCEDIMIENTO DE PREPARACION DE UN POLVO MAGNETICAMENTE ESTABLE
摘要 <p>In the process for preparing a magnetically stable, powder comprising the steps of reducing an iron oxide or iron oxide hydrate with a gaseous reduction agent and stabilizing the metallic powder thus produced, the improvement which comprises enhancing its reduction by coating said iron oxide or iron oxide hydrate with an antimony compound at a level of up to about 7 weight percent antimony based on the weight of the iron oxide prior to said reduction.</p>
申请公布号 ES493819(D0) 申请公布日期 1981.08.01
申请号 ES19190004938 申请日期 1980.07.29
申请人 PFIZER INC. 发明人
分类号 B22F1/02;B22F9/22;H01F1/06;(IPC1-7):01G49/02;11B5/64 主分类号 B22F1/02
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