发明名称 |
METHOD FOR ENRICHING SILVER OR OTHER PRECIOUS METALS BY FLOTATION FROM A SUSPENSION, FOR EXAMPLE FROM ZINC-LEACHING RESIDUES |
摘要 |
<p>The invention relates to a method for enriching silver or other precious metals by means of flotation from a suspension, for example from zinc-leaching residues, a metal comprising the following steps: a metal which is baser than hydrogen is added; an acid up to a pH value of 2.0 to 5.0 is added, especially 3.5 to 4.5; an organic additive in a concentration of 50 ppm to 1000 ppm is added; the mixture is contacted; and the mixture is fed into a flotation device for separating off the part containing the precious metal. The method ensures good enrichment with an equally good yield of the valuable substance desired.</p> |
申请公布号 |
EP0966325(A1) |
申请公布日期 |
1999.12.29 |
申请号 |
EP19980904080 |
申请日期 |
1998.01.16 |
申请人 |
RUHR-ZINK GMBH |
发明人 |
SMYKALLA, GUENTER;MUELLER, FRIEDRICH-WILHELM;LANGHANS, MARCO |
分类号 |
B03D1/02;C22B3/04;C22B3/20;C22B3/44;C22B7/00;C22B11/00;(IPC1-7):B03D1/02 |
主分类号 |
B03D1/02 |
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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