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Preparation method for electro-geochemical adsorption material for uranium exploration

A technology of geoelectrochemistry and adsorption materials, which is applied in the field of uranium resource exploration, can solve the problems of low extraction efficiency of uranium elements, achieve the effects of highlighting the indication function, improving the adsorption capacity, and reducing the background

Inactive Publication Date: 2016-11-09
BEIJING RES INST OF URANIUM GEOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the existing polyurethane foam has not been specially treated, and there is still a technical problem of low extraction efficiency of uranium

Method used

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  • Preparation method for electro-geochemical adsorption material for uranium exploration
  • Preparation method for electro-geochemical adsorption material for uranium exploration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a method for preparing a geoelectrochemical adsorption material in uranium ore exploration, the steps are as follows:

[0026] 1), take polyurethane foam plastics, cut it and grow into polyurethane foam plastics with a width of 10 cm and a thickness of 0.8 cm.

[0027] 2), get 1) gained polyurethane foam and place in nitric acid aqueous solution and soak 48h, obtain the polyurethane foam after soaking; The volume fraction of nitric acid in the described nitric acid aqueous solution is 15%, and described nitric acid aqueous solution is made of high-purity nitric acid and deionized Water configuration; the volume of the polyurethane foam is 1 / 2 of the volume of nitric acid aqueous solution for soaking.

[0028] 3) Use deionized water to wash the soaked polyurethane foam obtained in 2) for 3 times, then twist and dehydrate, and then place it in a ventilated place to dry in the shade to obtain the background-removed polyurethane foam.

Embodiment 2

[0030] This embodiment provides a method for preparing a geoelectrochemical adsorption material in uranium ore exploration, the steps are as follows:

[0031] 1), take the polyurethane foam plastics, and cut it into polyurethane foam plastics with a width of 20 cm, a width of 15 cm, and a thickness of 1 cm.

[0032] 2), get 1) gained polyurethane foam and place in nitric acid aqueous solution and soak 24h, obtain the polyurethane foam after soaking, polyurethane foam is submerged below the liquid level of nitric acid aqueous solution completely in the soaking process; In described nitric acid aqueous solution, the volume fraction of nitric acid is 25%, the nitric acid aqueous solution is configured by high-purity nitric acid and deionized water; the volume of the polyurethane foam is 1 / 3 of the volume of the nitric acid aqueous solution for soaking.

[0033] 3) Use deionized water to wash the soaked polyurethane foam obtained in 2) 5 times, then twist and dehydrate, and then p...

Embodiment 3

[0035] This embodiment provides a method for preparing a geoelectrochemical adsorption material in uranium ore exploration, the steps are as follows:

[0036] 1), take polyurethane foam plastics, cut it and grow into polyurethane foam plastics with 18cm in width, 13cm in width and 0.9cm in thickness.

[0037] 2), get 1) gained polyurethane foam and place in nitric acid aqueous solution and soak 36h, obtain the polyurethane foam after soaking, in soaking process, polyurethane foam is submerged below the nitric acid aqueous solution liquid level completely; In the described nitric acid aqueous solution, the volume fraction of nitric acid is 20%, the nitric acid aqueous solution is configured by high-purity nitric acid and deionized water; the volume of the polyurethane foam is 1 / 4 of the volume of the nitric acid aqueous solution for soaking.

[0038] 3) Use deionized water to wash the soaked polyurethane foam obtained in 2) for 4 times, then twist and dehydrate, and then place ...

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Abstract

The invention belongs to the field of uranium ore resource prospection, and concretely provides a preparation method for an electro-geochemical adsorption material for uranium exploration. The preparation method comprises dipping in a nitric acid solution to remove background content of uranium element in polyurethane foam plastic, loading with an organic extraction agent possessing adsorption efficiency, and other steps. In the background-removed polyurethane foam plastic obtained through the preparation method, the background content of uranium element is effectively reduced, therefore influence of the background content of the polyurethane foam plastic on an analysis measurement result is reduced, and further the analysis measurement result is relatively accurate. Meanwhile, the background-removed polyurethane foam plastic is loaded with a proper organic extraction agent, the adsorption capability of the background-removed polyurethane foam plastic during electro-geochemical extraction is improved, and extraction efficiency of active-state uranium element is enhanced.

Description

technical field [0001] The invention belongs to the field of uranium ore resource exploration, and in particular relates to a preparation method of a geoelectrochemical adsorption material in uranium ore exploration. Background technique [0002] Under the action of the earth's natural electric field, elements can migrate from deep underground to the surface in the form of ions and accumulate in the surface soil. For example, uranium is usually present in soil as uranyl complex cation (UO 2 2+ ) and UO 2 (CO 3 ) 3 4- , UO 2 (OH) 3- , (UO 2 ) 2 CO 3 (OH) 3- Exist in the form of other anions. Most of these uranium ions migrated from deep underground ore bodies to near-surface soils under the action of various geological forces during a long geological period. Therefore, the content of active ions of uranium in surface soil is of great significance to the exploration of deep uranium deposits. [0003] The mobile uranium ions are captured by water-soluble salts, cl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26G01N1/40B01J20/30
CPCB01J20/265G01N1/405
Inventor 刘洪军柯丹吴国东王勇
Owner BEIJING RES INST OF URANIUM GEOLOGY
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