METHOD FOR PREPARING MODIFIED RED MUD BY ADDING METAL OXIDE

摘要

The present invention relates to a method for preparing modified red mud, comprising the steps of: (a) preparing a red mud slurry by mixing red mud and water; (b) adding hydrochloric acid to the red mud slurry; (c) obtaining a precipitate by adding ammonia water to the red mud having passed through step (b) and filtering the same; and (d) obtaining a final product by adding a metal oxide to the precipitate of step (c).