Device and method for rapidly separating actinide elements through four-column continuous color layer

Through the four-column continuous chromatic layer rapid separation device and method, the continuous adsorption, rinsing and desorption of actinide elements is achieved using a variety of chromatic layer adsorption columns, which solves the problems of interference and low accuracy in the separation process of actinide elements in the prior art. It achieves efficient and fast separation and high recovery.

CN119075381APending Publication Date: 2024-12-06NORTHWEST INST OF NUCLEAR TECH
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Patent Information

Application Number
CN202411227354.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2024-12-06

AI Technical Summary

Technical Problem

The prior art has problems such as interference, complex process and low accuracy in the separation process of actinide elements, especially in the rapid and high-precision test analysis of trace actinide isotopes, which are difficult to meet the requirements.

Method used

Using four-column continuous color layer rapid separation device and method, N263 or TEVA, TBP or UTEVA through the combination of liquid reservoir unit, color layer separation unit, waste liquid collector, product collection unit, valve, conveying pump and pipeline, N263 or TEVA, TBP or UTEVA, DN, TRU or RE chromolayer adsorption columns realize continuous adsorption, rinsing and desorption, automatically control the separation process, and reduce the impact of radionuclide radiation on the human body.

Benefits of technology

High selective separation and recovery of plutonium, uranium, americium and ulcer are achieved, with high chemical recovery rate and decontamination factor better than 104. The process is simple and fast, and the sample utilization rate is high, which significantly reduces the radiation exposure risk of operators.

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Abstract

The invention relates to a device and a method for rapidly separating actinide elements through a four-column continuous color layer, belongs to the technical field of actinide element separation, and solves the technical problems of interference, complex process and low precision in actinide element separation. The device comprises a liquid storage tank unit, a color layer separation unit, a waste liquid collector, a product collection unit, a valve and a delivery pump. Liquid in the uppermost liquid storage tank unit flows into the color layer separation unit through a valve and a conveying pump; the liquid flowing out of the color layer separation unit is controlled by a valve to flow into a waste liquid collector or flow into a product collection unit. The method comprises the following steps: preparing a radioactive sample, a water-based washing solution, a water-based leacheate, a water-based desorption solution and a chromatography adsorption column before separation; adsorbing plutonium, uranium, americium and neptunium; washing is performed; leaching is conducted; and desorption: separating out radioactive solutions of plutonium, uranium, americium and neptunium. The method is used for separating and purifying the actinide elements.
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