Using method of recovery adsorption tower in in-situ leaching mining uranium water treatment technology

Abstract

The invention belongs to the technical field of mobile bed uranium water treatment, and more specifically relates to a using method of a recovery adsorption tower in in-situ leaching mining uranium water treatment technology. The using method is capable of solving problems in the prior art that in not only adsorption process resin saturation capacity is influenced by transformation tail liquid introduction adsorption process, adsorption resin saturation capacity fluctuation is relatively large, and after transformation, solution enters into underground ore bed with leaching solution, so that mine later stage underground water treatment difficulty is increased. The using method comprises following steps: feasibility test of transformation tail liquid introduction into the recovery adsorption tower, and transformation tail liquid introduction into the recovery adsorption tower. The using method is capable of realizing recovery adsorption tower innovation utilization, recycling uranium intransformation tail liquid, increasing water treatment recovery rate, recycling nitrate radicals in transformation tail liquid, reducing production cost, stabilizing adsorption process resin uraniumcapacity, achieving ion exchange mobile bed uranium mining technology liquid phase balance, achieving liquid phase closed circulation, reducing underground nitrate radical accumulation, and reducing mine later stage underground water treatment difficulty.

Description

technical field [0001] The invention belongs to the technical field of moving bed uranium hydrometallurgy, and in particular relates to a method for using a recovery adsorption tower in an in-situ leaching ore uranium hydrometallurgy treatment process. Background technique [0002] In 1952, South Africa's West Rand Company established the world's first plant to extract uranium using ion-exchange uranium hydrometallurgy. The uranium extracted by this method has the advantages of less impurities and high efficiency, so this process has been vigorously developed. [0003] The initial ion exchange adopts the fixed-bed uranium hydrometallurgy treatment process, mainly including adsorption, rinsing, transformation and other processes. The resin is fixed in the tower, and each process is completed by cutting the tower. With the continuous development of uranium mining technology, the fixed bed has the disadvantages of easy hardening, small processing capacity, many valves, and easy...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the transformation tail liquid entering the adsorption process not only affects the resin saturation capacity of the adsorption process, but also makes the adsorption resin saturation capacity fluctuate greatly, and the solution after transformation enters the underground mine layer with the leaching liquid, thereby increasing the difficulty of groundwater treatment in the later stage of the mine. question

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