| 发明名称 |
PROCEDEU PENTRU PREPARAREA FLURURII DE CALCIU |
| 摘要 |
<p>Disclosed is a process for the preparation of calcium fluoride comprising reacting hexafluoro silicic acid with calcium carbonate in the presence of sulfate or aluminum ions within a pH range of between about 2 and 6 and separating the calcium fluoride precipitate from the resulting aqueous silica sol.</p> |
| 申请公布号 |
RO65917(A) |
申请公布日期 |
1980.06.15 |
| 申请号 |
RO19750081409 |
申请日期 |
1975.02.14 |
| 申请人 |
KALI-CHEMIE AG,DE |
发明人 |
BECHER,WILFRIED,DE;MASSONNE,JOACHIM,DE |
| 分类号 |
C01B33/18;C01B33/141;C01B33/152;C01B33/22;C01F11/22;(IPC1-7):01F11/22 |
主分类号 |
C01B33/18 |
| 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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