A system for improving the recovery rate of rare earths and a liquid collection system for rare earth mines using the same

Abstract

The invention discloses a system for improving a rare earth recovery rate and a rare earth mine liquid collection system applying the same. The system for improving the rare earth recovery rate comprises a water avoidance ditch around a mountain; the water avoidance ditch is arranged along the lower part of a weathered layer and above a liquid collection roadway, and is used for intercepting and separating non-rare-earth leachate. By the system for improving the rare earth recovery rate, the non-rare-earth leachate such as rainwater can be intercepted and separated, and is prevented from entering the liquid collection roadway and mixing with rare earth leachate. Compared with the prior art, the operation has the advantages of increasing the concentration of the rare earth leachate, reducing the content of impurities therein, reducing the difficulty of separating rare earth from the rare earth leachate, and accordingly helping to improve the rare earth recovery rate.

Description

technical field [0001] The invention belongs to the technical field of rare earth extraction and recovery, and specifically relates to a system for improving the recovery rate of rare earths and a liquid collection system for rare earth mines using the system, in particular to a system for improving the recovery rate of rare earths in full-cover ion-adsorption rare earth mines and its application Liquid collection system for rare earth mines. Background technique [0002] China's rare earths account for 80% of the world's total, and are important mineral resources and strategic resources in my country. Among them, the ion-adsorption rare earth deposits in the south are weathered crust type, and the original rocks are mostly rare earth-containing granite and volcanic rocks. The cutting depth of the mountain is generally small, and the water level is generally high. The weathering of the original rocks forms clays such as kaolin and montmorillonite. Minerals, rare earth ions ...

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Problems solved by technology

[0006] For this reason, when mining ion-adsorption type rare earth mines, especially full-cover ion-adsorption type rare earth mines, the rare earth leachate is easily affected by unfavorable environments such as external rainwater and streams, resulting in low concentration and low impurity content. High, the defects that affect the recovery rate of rare earths, and then improve a rare earth leach solution with high concentration, low impurity content and high recovery rate of rare earths to improve the recovery rate of rare earths and the rare earth mine liquid collection system using it

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