| 发明名称 |
Method for producing coarsely crystalline alumina |
| 摘要 |
Coarsely crystalline aluminum oxide is provided which contains the following trace elements: V2O5 > 0.005 percent by weight, P2O5 > 0.005 percent by weight, Na2O > 0.8 percent by weight.
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| 申请公布号 |
US4130402(A) |
申请公布日期 |
1978.12.19 |
| 申请号 |
US19770800046 |
申请日期 |
1977.05.24 |
| 申请人 |
GUILINI CHEMIE G.M.B.H. |
发明人 |
SCHEPERS, BERNHARD;HELLINGHAUSEN, HEINZ;KRAMER, ALOIS |
| 分类号 |
C30B29/20;C01F7/02;C01F7/44;C04B35/10;C09K3/14;(IPC1-7):C04B31/02 |
主分类号 |
C30B29/20 |
| 代理机构 |
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代理人 |
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