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Process for the recovery of gallium and germanium from coal fly ash
Process for the recovery of gallium and germanium from coal fly ash
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机译:从粉煤灰中回收镓和锗的方法
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摘要
A method is disclosed for recovering gallium and/or germanium from fly ash which comprises pelletizing the fly ash, treating the pellets in the presence of an oxidizing gas at a temperature of from about 900° C. to just below the fusion temperature of the pellets, treating the pellets in the presence of a reducing gas at the same temperature range, and recovering gallium and/or germanium suboxides from the gas.
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