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| aluminium dross recycling ： ウィキペディア英語版 |
aluminium dross recycling
Aluminium dross, a byproduct of the aluminium smelting process, can be mechanically recycled to separate the residual aluminium metal from the aluminium oxide.
==Thermo-mechanical metal extraction==
The mechanical process of recycling does not use any toxic chemicals previously used in the process of extracting the valuable aluminium in the dross.
Hot dross processing system whereby the majority of metal is recovered without chemically reducing the aluminium oxides. The dross is first crushed then separated into aluminium metal rich particles and aluminium oxide rich particles based on density. The metal rich particles are then melted in a furnace to remove the remaining oxide particles.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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