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Method for exploiting rare earth ore by electrification

A rare earth ore and rare earth technology, applied in the mining field, can solve the problems of mother liquor loss, reduce leaching rate, ammonia and nitrogen environmental pollution, etc., and achieve the effects of simple construction, speeding up transportation and improving mining efficiency.

Active Publication Date: 2019-03-01
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, during the mining process, due to the long-term liquid injection and the abundant precipitation in the south, it is easy to cause the loss of mother liquor, reduce the leaching rate, and also cause serious environmental pollution of ammonia and nitrogen, and geological disasters such as landslides and landslides

Method used

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  • Method for exploiting rare earth ore by electrification
  • Method for exploiting rare earth ore by electrification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Drill anode liquid injection holes on the rare earth mine body in the stope, and there are twenty anode liquid injection holes. After the anode liquid injection hole is drilled through, an anode liquid injection pipe made of EKG is inserted into the vertical slope; then two cathode liquid collection holes are drilled at the foot of the mountain perpendicular to the surface of the mine body, and then EKG cathode liquid collection pipes are inserted into the holes. And arrange filter cloth around, excavate the liquid collection ditch below the cathode liquid collection hole, and set a liquid collection pool at both ends of the liquid collection ditch, the position of the liquid collection pool is 3 meters below the liquid collection ditch, and the cathode liquid collection hole It is arranged above the liquid collection ditch, and the liquid outlet end of the cathode liquid collection pipe is connected to the liquid collection ditch. Among them, the anode liquid injec...

Embodiment 2

[0053] (1) Drill anode liquid injection holes on the rare earth mine body in the stope, and there are twenty anode liquid injection holes. After the anode liquid injection hole is drilled through, an anode liquid injection pipe made of EKG is inserted into the vertical slope; then two cathode liquid collection holes are drilled at the foot of the mountain perpendicular to the surface of the mine body, and then EKG cathode liquid collection pipes are inserted into the holes. And arrange the filter cloth around, excavate the liquid collection ditch below the cathode liquid collection hole, and set the liquid collection pool at both ends of the liquid collection ditch, the position of the liquid collection pool is 3 meters below the liquid collection ditch, and the cathode liquid collection hole It is arranged above the liquid collection ditch, and the liquid outlet end of the cathode liquid collection pipe is connected to the liquid collection ditch. Among them, the anode liquid...

Embodiment 3

[0058] (1) Drill anode liquid injection holes on the rare earth mine body in the stope, and there are twenty anode liquid injection holes. After the anode liquid injection hole is drilled through, an anode liquid injection pipe made of EKG is inserted into the vertical slope; then two cathode liquid collection holes are drilled at the foot of the mountain perpendicular to the surface of the mine body, and then EKG cathode liquid collection pipes are inserted into the holes. A filter cloth can be attached around it, and a collecting ditch is excavated under the cathode liquid collecting hole, and a collecting pool is arranged at both ends of the collecting ditch, and the position of the collecting pool is 3 meters below the collecting ditch, and the cathode collecting The hole is arranged above the liquid collection ditch, and the liquid outlet end of the cathode liquid collection pipe is connected to the liquid collection ditch. Among them, the anode liquid injection pipe has ...

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Abstract

The invention discloses a method for exploiting rare earth ore by electrification. The method comprises inserting an anode injection pipe and a cathode collection pipe respectively in a rare earth mine body, wherein the insertion position of the cathode collection pipe is lower than that of the anode injection pipe; opening a collection ditch communicated with the cathode collection pipe in the rare earth mine body; after injecting rare earth leaching liquid into the anode injection pipe, applying voltage to the anode injection pipe and the cathode collection pipe, electrifying the pipes withdirect current and collecting a mother solution through the collection ditch. By connecting the direct current with the anode injection pipe and the cathode collection pipe as two poles, the leachingliquid for leaching the rare earth in the soil moves to the cathode due to the polarity under the effect of an electric field by means of electric osmosis, the mother solution moving speed is increased, the mother solution collection time is reduced, and the system exploiting efficiency is improved accordingly. In addition, the method is simple in construction and short in cycle, thereby effectively reducing environmental pollution and geological disasters.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a method for electrifying rare earth mines. Background technique [0002] Rare earths are a type of strategic resource and key raw materials for cutting-edge weapons, aerospace, information technology, medicine and medical equipment, high-end equipment manufacturing, new materials, and new energy vehicles. They are called "industrial vitamins." my country is a country with large rare earth resources, and its reserves account for about 75% of the world's total reserves. Among them, the ion-adsorption rare earth deposits in South China (also known as weathering crust leaching rare earth deposits) have high content of medium and heavy rare earths, large reserves, and distributed It is the main resource base of heavy rare earths in the world, providing more than 90% of the world's heavy rare earths. [0003] The rare earth elements in this kind of deposits exist on the weathered clay ...

Claims

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Application Information

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IPC IPC(8): C22B59/00C22B3/04
CPCC22B3/045C22B59/00Y02P10/20
Inventor 何宏平朱建喜陈情泽王迎亚邢介奇黄健王园园
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI