发明名称 |
PROCESSES FOR TREATING FLY ASHES |
摘要 |
There are provided processes for treating fly ash. For example, the processes can comprise leaching fly ash with HCl so as to obtain a leachate comprising aluminum ions and a solid, and separating the solid from the leachate; reacting the leachate with HCl so as to obtain a liquid and a precipitate comprising the aluminum ions in the form of AlCl3, and separating the precipitate from the liquid; and heating the precipitate under conditions effective for converting AlCl3 into Al2O3 and optionally recovering gaseous HCl so-produced. |
申请公布号 |
EP2838848(A4) |
申请公布日期 |
2016.01.20 |
申请号 |
EP20130769350 |
申请日期 |
2013.03.11 |
申请人 |
ORBITE ALUMINAE INC. |
发明人 |
BOUDREAULT, RICHARD;FOURNIER, JOËL;PRIMEAU, DENIS |
分类号 |
C01F7/22;A62D3/36;A62D3/40;A62D101/08;C01B7/00;C01B33/12;C01D1/04;C01F5/10;C01F5/30;C01F7/30;C01F7/56;C01F17/00;C01G49/06;C01G49/10;C22B3/44;C22B7/02;C22B21/00;C22B21/02 |
主分类号 |
C01F7/22 |
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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