Treatment of cement kiln flue dust
作者： Frank Henry Singleton , Jack William Bruce
DOI:
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摘要: This invention concerns a cement kiln flue dust treatment process comprising: in first stage treating the with fresh water at an elevated temperature for such time as to dissolve alkali metal chlorides, simultaneously carbonating convert calcium hydroxide solution insoluble carbonate, then slurry thus formed second additional and substantially all remaining sulphates, again filtering from stage, recovering potassium chloride sulphate desired filtrate.
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