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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

有机膦复合添加剂应用在碱法制备α-FeOOH过程中

古绪鹏; 陈同云; 吴鹏生   

  1. 华东冶金学院化学工程系 安徽马鞍山 243002
  • 收稿日期:2000-09-01 修回日期:2000-10-09 出版日期:2001-09-20 网络出版日期:2001-09-20

Applying an Organic Phosphine Complex Additive to Preparing α-FeOOH by Alkaline Methods

GU Xu-Peng; CHEN Tong-Yun; WU Peng-Sheng   

  1. Chemical Departmeot of East China Institute of Metallurgy; Anhui Maanshan 243002; China
  • Received:2000-09-01 Revised:2000-10-09 Published:2001-09-20 Online:2001-09-20

PDF (PC)

967

被引次数

40

摘要： 合成了一种以有机磷化合物为主的复合添加剂，应用到碱法制备α-ＦｅＯＯＨ过程中，发现反应的氧化速度有明显的提高、对α－ＦｅＯＯＨ形貌有明显的影响．实验发现，在Ｒ＝５．０时，复合添加剂用量为１．０×１０－３ｇ／Ｌ其晶形较佳．α－ＦｅＯＯＨ经脱水、还原、氧化制得γ－Ｆｅ２Ｏ３磁粉其性能优良，主要指标完全达到高性能磁记录材料的要求．

关键词: 添加剂, 羟基水合铁, γ-Fe2O3磁粉, 制备

Abstract: α-FeOOH was prepared by alkaline methods with an organic phosphine complex additive center. γ-Fe2O3 magnetic powders were made from α-FeOOH by releasing water, reducing, and oxidizing. It was found that the effects of the additives on the rate of oxidation and the topography of α-FeOOH are obvious. When the amount of the complex additive is 1.0×10-3g/L and R=5.0, magnetic-recording powders with high properties can be obtained.

Key words: additive, hydrated hydraferro, γ-Fe2O3 magnetic powder, preparation

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