RECOVERY OF IMPORTANT METAL VALUES FROM THE TAILINGS GENERATED IN MINERAL BENEFICATION PLANT (CONCENTRATOR) OF LEAD-ZINC SULFIDE ORE

摘要

A Process for the recovery of important metal values from the tailings generated in Mineral Beneficiation Plant of Lead-Zinc sulfide ore. The Tailings stream 1 for a Pb-Zn Sulfide ore is conditioned in the first process stage A with the addition of reagents the conditioned slurry 2 is floated in Rougher Stage B to recover maximum Base Metals locked in the Tailings. The Rougher Tailings stream 4 is Scavenged in Single Scavenger Stage C to float residual base metals. The Final Tailing stream 5 is neutralized with Lime and disposed off. Rougher concentrate stream 3 is cleaned in Flotation stage D to produce final Bulk Concentrate stream 8. The Cleaner Tailings 7 and Scavenger Concentrate 6 are collected together in a Sump (Stage E) and recycled back (Stream 9) to Stage B. The Bulk Concentrate thus produced is amenable for metal extraction by any suitable hydrometallurgical process.