MINERAL PROCESSING TECHNOLOGY RESEARCH FOR RECYCLING OXIDIZED ZINC FROM TAILINGS OF LEAD-ZINC ORE

The zinc grade of the tailings that a lead-zinc mineral processing plant abandons is about 2%,of which Oxidized zinc one is about 90%.Because of the high slime containing,low grade,mineral processing is difficult and the zinc that can't be recycled is abandoned to tailings storage.As a result,the resource is largely wasted.This research employs spiral chute one-dressing to wipe of the slime,use tabling gravity to increase the grade of oxidized zinc to about 4.5% and flotation.By combining gravity concentration and flotation solves that hard question,getting oxidized zinc-concentrate of 33% grade of zinc and 86% flotation recovery.