Selective Polysaccharide Flocculants for Bauxite Ore Beneficiation

摘要

Selective flocculants for beneficiation of bauxite ore comprise one or more types of polysaccharides comprising one or more types of pentosan units. Also disclosed are processes for enriching aluminum hydroxide and alumina from bauxite ore comprising the aluminum hydroxide and alumina and clay materials and and/or siliceous gangue, wherein the process comprises carrying out a selective flocculation process in the presence of one or more of the selective flocculants.