| 发明名称 |
Process for preparing alpha-FeOOH |
| 摘要 |
The invention relates to a process for preparing acicular (needle-shaped) alpha-FeOOH by addition of alkali and oxidants (oxidising agents) to an aqueous iron(II) sulphate solution at a pH of from 5.0 to 6.0, and the use thereof as starting material for the preparation of magnetic materials suitable for magnetic recording media.
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| 申请公布号 |
DE3640245(A1) |
申请公布日期 |
1988.05.26 |
| 申请号 |
DE19863640245 |
申请日期 |
1986.11.25 |
| 申请人 |
BASF AG |
发明人 |
KOPPE,KLAUS-DIETER,DR.;SCHWAB,EKKEHARD,DR.;STECK,WERNER,DR. |
| 分类号 |
C01G49/06;C09C1/24;G11B5/706;(IPC1-7):C01G49/02;B05D5/12;C04B35/26;H01F1/09;H01F10/14 |
主分类号 |
C01G49/06 |
| 代理机构 |
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