METHOD FOR CLEANING BLINDED FILTER MEDIA AND PREVENTING FILTER BLINDING

摘要

Reducing the blinding of mineral processing filters blinded with metallic ore fines by treating the blinded filters with an aqueous solution of an unblinding agent which solubilizes at least a portion of the ore fines. Preventing blinding of the filters by metallic ore fines, by adding to the aqueous metallic ore concentrate an effective amount of an unblinding agent which solubilizes at least a portion of the metallic ore fines. Preferred unblinding agents are selected from the group consisting of water soluble organophosphonic acids, or water soluble salts thereof, and C4-C7 dicarboxylic acids.