| 发明名称 |
MODIFIED FERROMAGNETIC CHROMIUM DIOXIDE COMPOSITION AND METHOD OF PREPARING THE SAME |
| 摘要 |
<p>Modified ferromagnetic chromium dioxide composition containing minor amounts of La, Y, Sr, Ba, or mixtures thereof. Said chromium dioxide is made by heating a mixture of Cr2(CrO4).nH2O wherein n is from 1 to 8, and La, Y, Sr, and/or Ba to 250 DEG to 500 DEG C under a pressure of from about 80 to 1000 atmospheres of oxygen.</p> |
| 申请公布号 |
CA998240(A) |
申请公布日期 |
1976.10.12 |
| 申请号 |
CA19730169929 |
申请日期 |
1973.04.19 |
| 申请人 |
MONTECATINI EDISON S.P.A. |
发明人 |
MOTIGLIO, UGO;ASPES, PIERFRANCESCO;BASILE, GIAMPIERO |
| 分类号 |
C04B35/12;C01G37/02;C01G37/027;C04B35/42;G11B5/706;H01F1/10;H01F1/11 |
主分类号 |
C04B35/12 |
| 代理机构 |
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