| 发明名称 |
EXTRACTION OF ALUMINA FROM BAUXITE |
| 摘要 |
<p>In the production of alumina by the Bayer process from bauxite containing gibbsite and boehmite and having an iron content below 5% (calculated as Fe2O3) the extraction of boehmite is improved by introducing lime during, preferably at the beginning of, the digestion stage which is carried out at a temperature of 225-270.degree.C.</p> |
| 申请公布号 |
CA1047230(A) |
申请公布日期 |
1979.01.30 |
| 申请号 |
CA19750227579 |
申请日期 |
1975.05.22 |
| 申请人 |
ALCAN RESEARCH AND DEVELOPMENT LIMITED |
发明人 |
O'CALLAGHAN, WILFRID B.;OSTAP, STEPHEN |
| 分类号 |
C01F;C01F7/02;C01F7/06;(IPC1-7):01F7/02 |
主分类号 |
C01F |
| 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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