Abstract
The preparation of polymeric aluminum chloride(PAC) uses industrial waste coal gangue as raw materials was studied. The effects of reaction conditions such as roasting temperature, acid molar ratio, concentration of hydrochloric acid and acid leaching time were studied, the ideal reaction conditions for the preparation of PAC was determined. The result of the experiment for treating wastewater shows that the performance of PAC prepared from coal gangue is much better than that of commercial PAC.
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