| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for inexpensively recovering metal from waste such as residue containing various metal oxides and ores.SOLUTION: Metal oxide and fine powder silicon or/and fine powder silicon carbide are mixed, and the mixture is layed in a slag ladle, and thereafter, slag is poured-melted-reduced to form contained metal as a bullion.</p> |
