39results about How to "Increase floatability difference" patented technology

The present application relates to a kind of weak magnetic lepidolite pre-elution waste-flotation enrichment method, belong to mineral processing technical field.The present application carries out coarse grinding, slurry conditioning to low-grade weak magnetic lepidolite, is pre-elution waste by high gradient magnetic separation, obtains coarse-grained high-grade lithium-containing magnetic product, again by concentration, fine grinding treatment, adds composite regulator and composite collector to carry out the selective regulation of slurry environment and mineral surface characteristics, using two roughing, once scavenging, once concentration can obtain high-quality lithium concentrate.The present application removes most of the gangue in the ore by magnetic separation, and once enrichment of weak magnetic lepidolite greatly reduces the ore processing capacity of subsequent process;Adopting fine grinding realizes that lithium mica is fully dissociated, and the new composite reagent developed is used to carry out selective hydrophobic flotation to lithium-containing magnetic product, which can realize secondary enrichment of weak magnetic lepidolite, and provides a new method for clean separation and efficient recovery of low-grade complex and difficult-to-select lithium ore.