Method for intensive recovery of valuable components from rare earth tailings

The present invention relates to a method for intensive recovery of valuable components from rare earth tailings. The method includes the following steps: Si. magnetic separation and enrichment of a high-intensity magnetically separated concentrate and a high-intensity magnetically separated tailing; S2. leaching and recovery of molybdenum to obtain a molybdate solution and a leached residue; S3. gravity separation and flotation of the rare earth to obtain a rare earth concentrate and a flotation rare earth tailing; S4. leaching of lead to obtain a lead-containing solution; S5. flotation of barium to obtain a barite concentrate and a barite flotation tailing. The invention achieves effective enrichment and intensive recovery of useful components of rare earth, molybdenum, lead, and barium through a low-intensity magnetic separation and a high-intensity magnetic separation, laying a good foundation for subsequent centralized recovery; adopts the leaching to recover molybdenum, associates the gravity separation with the flotation, to achieve the effective recovery of rare earth minerals and to obtain rare earth concentrates with a high grade and recovery; adopts the leaching to recover lead, and the flotation to recover barium from the leached residue, to effectively comprehensively recover co-associated useful components of rare earth, lead, molybdenum, and barium in rare earth tailings, turning waste into treasure, having a good effect on emission reduction and realizing a change of solid waste into resources.