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Alumina extraction from acid-treated fly ash

2015-08-31View Original

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Is there anyone who understands the process involved in extracting alumina from acid-treated fly ash, as well as the related calculations? I need this information urgently. The general process is as follows: after being treated with sulfuric acid three times, the ash enters the leaching stage, where it is filtered and separated; the filtrate is then evaporated to increase its concentration, and the resulting concentrated ammonium aluminum sulfate is dried to remove water. If anyone knows, please help me calculate it; the benchmark can be set arbitrarily.

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