| 发明名称 |
HEAVY METAL SEPARATION FROM COPPER-BEARING WASTES |
| 摘要 |
<p>Copper-bearing waste, e.g. brass works flue dust (71% Zn, 31/2% Pb, 14% Cu) was mixed with dendritic zinc, and 80 g of the mixture was leached in 1 liter of 10M hot NaOH for 20 minutes. Dissolution of the copper was successfully held down to under 1%, while all the lead and most of the zinc were dissolved. The dendritic zinc was added as 2 parts by mass per 98 parts of the dust, and had a surface area of 5-10 m2/g; it was made by electrolysing a zincate solution.</p> |
| 申请公布号 |
EP0113580(B1) |
申请公布日期 |
1987.06.10 |
| 申请号 |
EP19830307858 |
申请日期 |
1983.12.22 |
| 申请人 |
NATIONAL RESEARCH DEVELOPMENT CORPORATION |
发明人 |
POOLEY, FREDERICK DAVID;JONES, HUW ONLLWYN;WHEATLEY, BARRY IVAN |
| 分类号 |
C22B13/00;C22B7/00;C22B7/02;C22B15/00;C22B19/00;C22B19/20;C22B19/30;C23G1/36;C25C1/16;(IPC1-7):C22B7/00;C22B19/24;C22B15/14;C22B13/04 |
主分类号 |
C22B13/00 |
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