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Method for extracting and purifying natural uranium by using vibrating ring-shaped traverse baffle extracting tower

A vibrating ring and baffle technology, which is applied in the field of extraction, can solve the problems of energy input and operation difficulties, uneven material-liquid pulse action, large energy consumption, etc., and achieve stable and reliable operation, low noise, and energy saving effects.

Inactive Publication Date: 2012-10-03
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when a pulse tower with a large specification (tower diameter) is used for the extraction and purification of natural uranium, it consumes a lot of energy, and the pulse effect on the feed liquid is not easy to be uniform, so energy input and operation are relatively difficult.

Method used

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  • Method for extracting and purifying natural uranium by using vibrating ring-shaped traverse baffle extracting tower
  • Method for extracting and purifying natural uranium by using vibrating ring-shaped traverse baffle extracting tower
  • Method for extracting and purifying natural uranium by using vibrating ring-shaped traverse baffle extracting tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] system such as figure 1 As shown, when the upper interface is used and the water phase is continuous, firstly, the water phase inlet 4 is used to fill the tower, and after the tower body containing the baffle plate string is filled with materials, the water phase stops feeding; turn on the motor 8. The frequency is adjusted to 80 / min. According to the organic phase:water phase flow ratio (i.e. volume ratio) of 1.5, the extraction agent is fed into the tower from the organic phase inlet 2, and the raffinate is discharged from the water phase outlet 3 after the interface is established. Water phase; after the organic phase begins to overflow from the organic phase outlet 1, the complete extraction process begins (the inlet and outlet of the organic phase and the water phase have extraction agent and material in and out according to the flow ratio, and the baffle plate string vibration). Under the action of the vibration of the baffle plate series, the aqueous phase and t...

Embodiment 2

[0031] The operation steps are the same as in Example 1, except that the frequency is 240 / min; the flow ratio of organic phase:water phase is 3, and the organic phase is prepared from TBP and sulfonated kerosene at a ratio of 3.6:6.4.

Embodiment 3

[0033] The operation steps are the same as in Example 1, except that the frequency is 160 / min; the flow ratio of organic phase:water phase is 2, and the organic phase is prepared by TBP and sulfonated kerosene in a ratio of 3:7.

[0034] Compared with the tower diameter and tower height of the vibrating annular baffle extraction tower with the same tower diameter and tower height, the vibration intensity of the vibrating annular baffle extraction tower for achieving the same purity effect The wider the parameter range, the greater the flooding velocity. Vibration intensity is used as a parameter to measure the energy input, and the wide range of parameters indicates that the equipment has great flexibility. The flooding speed is a parameter to measure the processing capacity of the equipment. The greater the flooding speed, the greater the processing capacity of the equipment.

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Abstract

The invention discloses a vibrating ring-shaped traverse baffle extracting tower belonging to the field of extraction and a method for extracting and purifying natural uranium by using the extracting tower. The extracting tower comprises a central shaft arranged at the center in a tower body, and an internal ring plate, one pipe spacer, an external ring plate and the other pipe spacer are sleeved on the central shaft one by one at intervals, so that a traverse baffle string can be formed; a motor fixedly arranged on the upper part of the upper expansion end at the upper end of the tower body drives the traverse baffle string to move up and down by a cam; and the upper expansion end and a lower expansion end arranged on the lower part of the tower body are respectively provided with a light / heavy phase inlet and a light / heavy phase outlet. The method for extracting and purifying the natural uranium by the extracting tower comprises the following steps of: charging a material into the tower from the heavy phase inlet of the upper end; and turning on a motor, and charging an extracting agent into the tower from the light phase inlet of the lower end in a flow ratio of organic phase to water phase of 0.5-10, so that the countercurrent extraction of downward water phase and upward organic phase can be formed. The extracting tower disclosed by the invention is simple in structure, large in flux and high in efficiency; and the method disclosed by the invention is environment-friendly and energy-saving, and is low in cost.

Description

technical field [0001] The invention belongs to the field of extraction, and in particular relates to a vibrating annular baffle extraction tower and a method for extracting and purifying natural uranium using the extraction tower. Background technique [0002] The pulse sieve plate column (PL) was invented by Van Dijk in 1935 and has the following characteristics: ①Simple structure; ②Short residence time of the two phases in the column, good flow and mass transfer performance; ③Small size, easy to operate; ④No transmission Components, easy to realize remote control to ensure critical safety; ⑤Compared with the extraction tower with energy input to the tower, the degree of axial backmixing is low and does not change much with the diameter of the tower. Editor-in-Chief: Wang Jiading, Chen Jiayong, Handbook of Solvent Extraction, Chemical Industry Press, 237. [0003] Vibrating sieve plate column (RPC), proposed by Van Dijk in 1935, later by Karr A.E and Lo T.C [0004] It h...

Claims

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Application Information

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IPC IPC(8): B01D11/04C22B60/02C22B3/26
Inventor 王学军徐盛明
Owner TSINGHUA UNIV
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