Method for the depressing of hydrous silicates and iron sulfides with dihydroxyalkyl polysaccharides

摘要

A process for the recovery of mineral values from base metal and precious metal ores is disclosed. Specifically, a froth flotation process is disclosed which comprises contacting an aqueous ore slurry with an effective amount of a dihydroxyalkyl group containing polysaccharide, a mineral collector and a frothing agent.