Non-reagent ground dipping uranium extracting process flow

Abstract

The invention relates to a reagent-free in-situ leaching uranium mining technological process which is additionally provided with a set of ion interchange unit consisting of an ion exchanger, a blast blower, a sand filtering tank, a regenerant tank and a waste liquid pool before a medium entering an absorption tower on the basis of the conventional reagent-free in-situ leaching uranium mining technological process. Leaching solution containing an oxidizing agent is injected into an ore bed through an injection hole so that the uranium in the ore bed is changed into the form of uranyl ions or other complex icons which are dissolved in leaching solution groundwater, then leaching solution containing uranium components is extracted to ground through an extracting hole, the leaching solution is injected back to the ore bed for recycling after carrying out sedimentation, icon exchange treatment and adsorption, and a uranate product is obtained after carrying out the procedures of analyzing, sedimentation, filter pressing and the like to saturated resin containing uranium. The method has the advantages of little investment, mature operative technique, obvious anti-blocking effect and the like. The utilizing of the process method can guarantee the continuous and stable running of uranium mining wells and a production system, and improve the production time efficiency and the product output.

Description

Technical field: [0001] The invention relates to a technological process used in the mining and production process of sandstone-type uranium ore deposits, which belongs to the uranium mining technology category. Background technique: [0002] Reagent-free in-situ leaching uranium mining is currently a leading mining method for uranium mining. In the process of mining uranium in this way, the extracted liquid and reinjected liquid are usually purified by simple sedimentation and sand filtration. Generally, only mechanical impurities and some microorganisms in the water can be removed, but the chemical impurities produced by metal cations cannot be removed. Sediments, thus unable to eliminate chemical blockages in mine seams and production systems. In this way, it is not only necessary to frequently adopt methods such as well flushing and gas lift to remove plugs, which increases the production cost, but also affects the normal mining of uranium mines, reducing the production...

AI Technical Summary

Problems solved by technology

In the process of mining uranium in this way, the extracted liquid and reinjected liquid are usually purified by simple sedimentation and sand filtration. Generally, only mechanical impurities and some microorganisms in the water can be removed, but the chemical impurities produced by metal cations cannot be removed. Sediments, thus unable to eliminate chemical blockages in mine seams and production systems

In this way, it is not only necessary to frequently adopt methods such as well washing and gas lift to remove plugs, which increases the production cost, but also affects the normal mining of uranium mines, reducing the production time rate and product output of uranium wells.

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