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PROCESS FOR RECOVERY OF FREE ALUMINUM FROM ALUMINUM DROSS ORALUMINUM SCRAP USING PLASMA ENERGY WITH OXYGEN SECOND STAGE TREATMENT
PROCESS FOR RECOVERY OF FREE ALUMINUM FROM ALUMINUM DROSS ORALUMINUM SCRAP USING PLASMA ENERGY WITH OXYGEN SECOND STAGE TREATMENT
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机译:等离子体能与氧第二阶段处理从氧化铝交叉废料中回收游离铝的方法
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摘要
PROCESS FOR RECOVERY OF FREE ALUMINUM FROM ALUMINUM DROSS OR ALUMINUM SCRAP USING PLASMA ENERGY WITH OXYGEN SECOND STAGE TREATMENT A process for recovering free aluminum and aluminum compounds such as aluminum oxide from aluminum dross and aluminum scrap in a furnace heated with a plasma arc torch followed by oxygen injection after significant aluminum separation has occurred is described. The injected oxygen reacts with aluminum nitrides and unrecoverable aluminum in the dross to provide processing energy. High aluminum recovery is obtained with greatly reduced cycle times at lower overall operating costs.
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