发明名称 |
WERKWIJZE VOOR HET OPWERKEN VAN ALUMINIUMZOUTSLAKKEN. |
摘要 |
<p>A process for the treatment of an aluminum-salt slag produced in the remelting of aluminum by the addition of salt to aluminum scrap wherein the aluminum salt slag is subjected to pressure and impact rolling to a thickness of about 0.2 mm to about 1 mm and the product is milled to an X80 value of about 130 to 150 microns. The milled product is classified in a plurality of stages to recover therefrom a large-particle fraction consisting at least predominantly of aluminum particles, and a fine-particle fraction. The fine-particle fraction is subjected to flotation in at least one flotation stage to which a base is added in an amount of 0.04 to 0.4 g of the base per ton of the material subjected to flotation to bring the pH to between 10 and 11, whereupon a cation active collector of the formula RO-(CH2)n-NH-(CH2)n-NH2 is added to recover an impurity-containing froth of low chloride level and a concentrate containing most of the chlorides of said slag.</p> |
申请公布号 |
NL7905466(A) |
申请公布日期 |
1980.01.15 |
申请号 |
NL19790005466 |
申请日期 |
1979.07.12 |
申请人 |
ALBERT BAHR TE CLAUSTHAL-ZELLERFELD, BONDSREPUBLIEK DUITSLAND. |
发明人 |
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分类号 |
C22B21/00;B02C19/00;B02C21/00;B03B9/04;B03D1/01;B03D1/02;C22B7/04;(IPC1-7):03D1/02;01F7/00 |
主分类号 |
C22B21/00 |
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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