METHOD FOR COLLECTING SILVER
To efficiently collect a silver anode.SOLUTION: The method for collecting silver comprises: the melting step of inserting reduced silver in an oxidation furnace to melt it; the crush step of crushing litharge obtained in the melting step; the separation step of separating the crushed material obtain...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To efficiently collect a silver anode.SOLUTION: The method for collecting silver comprises: the melting step of inserting reduced silver in an oxidation furnace to melt it; the crush step of crushing litharge obtained in the melting step; the separation step of separating the crushed material obtained in the crush step into silver metal and demetallized litharge; and the step of inserting the silver metal separated in the separation step into the oxidation furnace. The separation step includes supplying the crushed material to a specific gravity sorter to separate it into the silver metal and the demetallized litharge. The specific gravity sorter uses an air table, for example, a biaxial air table.SELECTED DRAWING: Figure 1
【課題】銀アノードを効率よく回収することを目的とする。【解決手段】銀の回収方法は、酸化炉に還元銀を装入し、溶融する溶融工程と、前記溶融工程で得られた密陀を破砕する破砕工程と、前記破砕工程において得られた破砕物を銀メタルと脱メタル密陀とに分離する分離工程と、前記分離工程において分離した銀メタルを前記酸化炉に装入する工程と、を含む。前記分離工程は、前記破砕物を比重選別機に供給して前記銀メタルと前記脱メタル密陀と、に分離する。前記比重選別機は、エアテーブル、例えば、２軸エアテーブルを用いる。【選択図】図１ |
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