发明名称 |
A METHOD FOR TREATING LIQUID EFFLUENTS AND RECOVERING METALS |
摘要 |
Process for treating liquid effluents and recovering metals, comprising the steps of a) equalizing the liquid effluent; b) ) adding sulfides and metal precipitation in the form of metal sulfides; c) separating solid/liquid from the metal sulfides obtained in step (b) and forming a liquid phase (10) free of metals; the process for treating liquid effluents and recovering metals further comprising the following steps: d) adding amine solution in a ratio of 50 to 250 g/L to the liquid phase (10) with magnesium precipitation in the form of magnesium hydroxide Mg(OH)2; and e) recovering the amine by depletion and rectification. |
申请公布号 |
KR20130136972(A) |
申请公布日期 |
2013.12.13 |
申请号 |
KR20137005206 |
申请日期 |
2011.08.09 |
申请人 |
VALE S.A. |
发明人 |
EVELIN SALOMAO SOLINO;SILVA ROBERTO MATTIOLI;DA SILVA GERALDO LUIZ;DE SOUZA CLAUSON |
分类号 |
C22B3/20;C02F1/62;C02F103/10;C22B26/22 |
主分类号 |
C22B3/20 |
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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