ION-ADSORPTING LOCAL IMMERSION-EXTRACTION METHOD FOR MINING RARE-EARTH MINERALS

ION-ADSORPTING LOCAL IMMERSION-EXTRACTION METHOD FOR MINING RARE-EARTH MINERALS

  • CN 1,043,768 A
  • Filed: 12/18/1989
  • Published: 07/11/1990
  • Est. Priority Date: 12/18/1989
  • Status: Abandoned Application
First Claim
Patent Images

1. , a kind of mining methods, ion-adsorpting local immersion-extraction method for mining rare-earth minerals particularly, it is adopted technical measures such as standard, high-order water filling, fluid injection, cascade sealing, original place leaching, leaching mother liquor, oxalic acid precipitation, filtration drying, calcination and constitutes by division stope, stope, the stope system that it is characterized in that " with water system water, using water seal " is promptly:

  • A) unify the runoff system according to the face of land, underground water and divide stope, adopt standard;

    B) for improving the pre-water measure that the loss of mother liquor drainage highly minimizing mother liquor improves groundwater table of leaching;

    C) above stope, arrange that by design fluid injection shallow well (hole, ditch, groove) (5) net degree water filling shallow well (hole, ditch, groove) (6) prevents that fluid injection water filling simultaneously shape solution from sealing to the peripheral cascade of external diffusion with the left side, the right;

    D) intercepting gutter pond (9,10) excavation is below the underground latent water face of the foot of the hill, build the check dam (14) that improves the loss of groundwater table prevention mother liquor in collecting tank (10) below, be provided with the gutter (15) of natural water and sealing water at the last hypomere of another survey of intercepting gutter (9) and intercepting gutter;

    E) the saturated mother liquor in the stope is extruded in water filling immediately after the fluid injection of fluid injection well finishes (top water).

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