Chinalco Researches New Method for Alkali Removal from Red Mud
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It is reported that this method can not only reduce the alkali content in the red mud, recover the combined alkali in it to reduce the alkali consumption of alumina production, but also make the dealkalized red mud become an inorganic raw material with stable physical and chemical properties and a wider range of uses. Mud utilization, reducing the amount of effluent red mud and its environmental pollution, reducing the investment in red mud control, and ultimately reducing alumina production costs.