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Fly Ash Ultrafine Powder Production Technology

Fly Ash Ultrafine Powder Production Technology

NH42SO4 roasting technology was used for extract alumina from fly ash which is located in Shandong Zibo power plant. The roasting temperature the molar ratio of NH42SO4Al2O3 and roasting time on the effect of the extract rate of alumina was studied. The optimal roasting technology condition is 380aC for 120min with a molar ratio of NH42SO4Al2O3 to 61

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