| 发明名称 |
PROCESS FOR THE PREPARATION OF FERROMAGNETIC CHROMIUM OXIDE BY REMOVING WATER BEFORE COOLING SYNTHESIS MIXTURE |
| 摘要 |
In the preparation of ferromagnetic chromium oxide in aqueous media the removal of water after reaction is complete, but before the reaction mixture is cooled below 225 DEG C.
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| 申请公布号 |
US3634030(A) |
申请公布日期 |
1972.01.11 |
| 申请号 |
USD3634030 |
申请日期 |
1969.09.18 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND CO. |
发明人 |
JOSEPH H. BALTHIS JR.;WALTER W. GILBERT |
| 分类号 |
C01G37/027;C01G37/02;G11B5/706;H01F1/11;(IPC1-7):C01G37/02;C04B35/00 |
主分类号 |
C01G37/027 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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