| 发明名称 |
Preparation of magnetite pigments: control of particle size |
| 摘要 |
Magnetite pigments are prepared from iron(II) salt solutions by a process in which the mean particle size can be brought to a value within the range from 0.06 to 0.5 mu m by means of a residence stage between the precipitation stage and the oxidation stage.
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| 申请公布号 |
US4702775(A) |
申请公布日期 |
1987.10.27 |
| 申请号 |
US19860878220 |
申请日期 |
1986.06.25 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
OSTERTAG, WERNER;WIENAND, HENNING;BAUER, ROLAND |
| 分类号 |
C01G49/02;C01G49/08;C09C1/24;H01F1/11;(IPC1-7):C01G49/08 |
主分类号 |
C01G49/02 |
| 代理机构 |
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代理人 |
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