发明授权
- 专利标题： Process for the selective separation of the bound sodium content of red mud
- 专利标题（中）： 选择性分离红泥结合钠含量的方法
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申请号： US846588申请日： 1977-10-28
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公开(公告)号： US4133866A公开(公告)日： 1979-01-09
- 发明人: Tamas Lakatos , Mihaly Miskei , Janos Szolnoki , Ferenc Toth , Laszlo Revesz
- 申请人： Tamas Lakatos , Mihaly Miskei , Janos Szolnoki , Ferenc Toth , Laszlo Revesz
- 申请人地址： HUX ALL OF HUX ALL OF HUX ALL OF
- 专利权人： Aluminiumipari Tervezo es Kutato Intezet,Almasfuzitoi Timfoldgyar,MTA Geokemiai Kutatolaboratorium
- 当前专利权人： Aluminiumipari Tervezo es Kutato Intezet,Almasfuzitoi Timfoldgyar,MTA Geokemiai Kutatolaboratorium
- 当前专利权人地址： HUX ALL OF HUX ALL OF HUX ALL OF
- 优先权： HUXAU364 19761029
- 主分类号： C01D5/00
- IPC分类号： C01D5/00 ; C01F7/26 ; C01G49/00 ; C01G49/14 ; C22B3/18 ; C22B3/20 ; C22B26/10
摘要：
The invention relates to a novel process for the selective recovery of the sodium content of red mud originating from alumina plants. According to the process of the invention red mud or a slurry thereof is admixed with a ferric sulfate solution, the resulting suspension is stirred intensively for 0.5 to 1 hour at 15 to 85.degree. C, thereafter, if necessary, the pH of the suspension is adjusted to 4.4 to 4.6 and the solid substance is removed from the suspension.Using the process of the invention the sodium oxide content of red mud can be reduced to below 1.5%.
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