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应用科学学报 ›› 1985, Vol. 3 ›› Issue (3): 267-273.

• 论文 • 上一篇    下一篇

Fe3O4生成过程的研究

都有为1, 陆怀先1, 顾新运2   

  1. 1. 南京大学固体物理研究所;
    2. 中国科学院南京土壤研究所
  • 收稿日期:1982-10-08 修回日期:1983-01-27 出版日期:1985-09-30 发布日期:1985-09-30

A STUDY ON FORMATION PROCESS OF Fe3O4

DU YOUWEI1, LU HUAIXIAN1, GU XINGYUN2   

  1. 1. Institute of Solid State Physics Nanjing University;
    2. Nanjing Institute of Soil Science, Academia Sinca
  • Received:1982-10-08 Revised:1983-01-27 Online:1985-09-30 Published:1985-09-30

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摘要： 化学共沉淀工艺制备Fe3O4的磁性与沉淀剂、混合方式、溶液浓度、Fe++与Fe+++、Fe++与OH-1离子的克分子比率等密切相关.当碱性溶液缓慢滴入Fe++,Fe+++混合溶液中时,Fe3O4的生成过程大致上分为两个阶段.

Abstract: The magnetic properties of magnetite prepared by chemical coprecipitation are closely related to the precipitator mixing method, concentration of solution and molar ratio of Fe2+/Fe3+ and Fe2+/OH- ions etc. When the alkaline solution is slowly added to the mixed aqueous solution containing ferric and ferrous ions, the process of formation of Fe3O4 consists of two steps.