发明名称 |
PROCESS FOR EXTRACTING ALUMINUM FROM ALUMINOUS ORES |
摘要 |
There is provided a method for extracting aluminum ions from aluminous ores, such as argillite. The process comprises leaching the argillite with an acid such as HCI so as to obtain a composition comprising the aluminum ions and iron ions; at least partially removing the iron ions from the composition by substantially selectively precipitating the iron at a pH of about 3 to about 6 by adding a base and at least partially removing the precipitated iron ions so as to obtain an Al-rich composition; and optionally purifying the Al-rich composition by adding a base for substantially selectively selectively precipitating the aluminum ions, by means of a hollow fiber membrane, or by a liquid-liquid extraction. |
申请公布号 |
CA2812309(C) |
申请公布日期 |
2014.12.09 |
申请号 |
CA20112812309 |
申请日期 |
2011.11.18 |
申请人 |
ORBITE ALUMINAE INC. |
发明人 |
BOUDREAULT, RICHARD;BIASOTTO, FABIENNE;FOURNIER, JOEL;ALEX, SERGE |
分类号 |
C22B21/00;C22B3/10;C22B3/22;C22B3/26 |
主分类号 |
C22B21/00 |
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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