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

Journal of Inorganic Materials

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

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

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

Abstract

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

CLC Number:

TF123

GU Xu-Peng,CHEN Tong-Yun,WU Peng-Sheng. Applying an Organic Phosphine Complex Additive to Preparing α-FeOOH by Alkaline Methods[J]. Journal of Inorganic Materials.

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

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