发明名称 |
PROCESSES FOR TREATING FLY ASHES |
摘要 |
<p>There are provided processes for treating fly ash. For example, the processes can comprise leaching fly ash with HCI so as to obtain a Ieachate comprising aluminum ions and a solid, and separating the solid from the Ieachate; reacting the Ieachate with HCI so as to obtain a liquid and a precipitate comprising the aluminum ions in the form of AICI3, and separating the precipitate from the liquid; and heating the precipitate under conditions effective for converting AICI3 into AI2O3 and optionally recovering gaseous HCI so-produced.</p> |
申请公布号 |
WO2013142957(A1) |
申请公布日期 |
2013.10.03 |
申请号 |
WO2013CA00218 |
申请日期 |
2013.03.11 |
申请人 |
ORBITE ALUMINAE INC. |
发明人 |
BOUDREAULT, RICHARD;FOURNIER, JOEL;PRIMEAU, DENIS |
分类号 |
C01F7/38;A62D3/36;A62D3/40;B01D53/14;B01D53/46;C01B7/00;C01F7/56;C22B3/10;C22B3/44;C22B7/02;C22B21/02 |
主分类号 |
C01F7/38 |
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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