U-shaped structure uranium leaching device and method

Abstract

The invention discloses a U-shaped structure uranium leaching device. The U-shaped structure uranium leaching device comprises a U-shaped structure tower body and a resin storage tank, and a poor resin outlet and an eluting agent inlet are formed in the left end of the U-shaped structure tower body; the upper part of the right end of the U-shaped structure tower body is connected with a resin storage tank which is provided with a compressed air inlet, a primary saturated resin inlet and an overflow port, and the right end of the U-shaped structure is provided with a tail liquid outlet.

Description

technical field [0001] This technology belongs to the field of uranium ore in-situ leaching technology, and specifically relates to a technology and system for leaching primary saturated resin produced by acid-based in-situ leaching leachate adsorption, and to a U-shaped structure for high-efficiency leaching of acid-in-place in-situ leaching for adsorption The technology and system for producing primary saturated resin relate to a U-shaped leaching tower device. Background technique [0002] Domestic acid leaching uranium mines mainly use sulfuric acid as the leaching agent, and uranium mainly exists in the form of uranyl sulfate in the acid leaching solution. In-situ leaching mines and water smelting plants generally use ion exchange systems to recover uranium in the leach solution. Due to the low concentration of uranium in the acid-process in-situ leaching solution, the ratio of sulfate ion concentration to uranyl ion concentration is high, and the competition between th...

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Problems solved by technology

[0004] Using the saturated re-adsorption process, more than half of the eluting qualified liquid needs to be returned for re-adsorption, and the saturated re-adsorption tail liquid produced needs to be recovered and adsorbed, and the process is relatively complicated; between the adsorption tower and the transition tower, a saturated re-adsorption tower and a recovery adsorption tower are required , 3-tower series countercurrent leaching and corresponding resin lifting tank and other equipment, the equipment occupies a large area and investment, and the operation and control are not easy

[0005] The leaching process is to connect the extraction and stripping process after the saturated resin leaching, and then enrich and purify the uranium in the enrichment solution. If the raffinate water phase is not completely removed from the organic phase, resin poisoning may occur if the raffinate water phase is mixed into the ion exchange system. At the same time, organic extractants are flammable and non-environmentally friendly reagents, and there are certain safety and environmental protection pressures in their storage and operation.

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