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Uranium-removing aluminum powder and method for removing uranium based on aluminum cans as raw material

The technology of cans and aluminum powder is applied in the field of uranium ore metallurgy, which can solve the problems of reducing the grade of secondary aluminum, wasting resources, destroying alloy components, etc., and achieves the effects of simple operation, easy availability of raw materials and high efficiency.

Active Publication Date: 2021-06-29
NANHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used recycling method for aluminum pop cans is to collect waste pop cans and then smelt them into remelted aluminum ingots containing more alloy components. This method will not only destroy the alloy components, but also reduce the grade of recycled aluminum and waste resources, obviously this kind of resource utilization is unreasonable

Method used

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  • Uranium-removing aluminum powder and method for removing uranium based on aluminum cans as raw material
  • Uranium-removing aluminum powder and method for removing uranium based on aluminum cans as raw material
  • Uranium-removing aluminum powder and method for removing uranium based on aluminum cans as raw material

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Comparison scheme
Effect test

Embodiment 1

[0020] Example 1. The aluminum powder for removing uranium based on aluminum pop cans as raw material, its main components are Al-Mg-Mn alloy and a small amount of metal impurities, the mass fraction of each element is: Al 95.7%~96.7%, Mg 0.8%~1.3%, Mn 1.0%~1.5%, Fe 0.70%, Zn 0.25%, Si 0.30%, Cu0.25%.

[0021] Its concrete preparation steps are as follows:

[0022] Collect the discarded aluminum pop cans, wash them with water, dry them, break open the body of the aluminum pop cans, remove the lid and the bottom of the cans, then use sandpaper to remove the paint on the cans, clean them repeatedly with distilled water, and put them in the oven The drying temperature is 105°C, the drying time is 0.5h, and then the dried can body is cut into pieces, and then crushed and ground into a powder with a mesh size of 80 or less by a ball mill to obtain aluminum powder for removing uranium.

Embodiment 2

[0023] Embodiment 2. A method for removing uranium in uranium-containing wastewater based on aluminum pop cans as raw material for removing uranium from uranium-containing aluminum powder. The initial concentration of uranium in uranium-containing wastewater is 10 mg / L, and the pH value is 3 to 8. The specific operation steps are as follows:

[0024] The pH value of the uranium-containing wastewater was adjusted to 3, 4, 5, 6, 7, and 8 respectively, and the uranium-containing wastewater with different pH values ​​was treated by adding aluminum powder for removing uranium. The dosage of aluminum powder for removing uranium was 6g / L. The reaction was oscillated by a constant temperature shaker, the rotation speed of the constant temperature shaker was 160r / min, the reaction temperature was 30°C, the reaction oscillation time was 120min, and solid-liquid separation was carried out after the reaction was completed.

[0025] After solid-liquid separation, filter, take the supernatan...

Embodiment 3

[0027] Embodiment 3. A method for removing uranium in uranium-containing wastewater by using aluminum pop cans as raw material for removing uranium in uranium-containing wastewater. The initial concentration of uranium in uranium-containing wastewater is 10 mg / L, and the pH value is 3 to 8. The specific operation steps are as follows:

[0028] The pH value of uranium-containing wastewater was adjusted to 5, and the dosage of aluminum powder for removing uranium was 2g / L, 4g / L, 6g / L, 8g / L, 10g / L, and 12g / L. The uranium-containing wastewater is treated, and the reaction is oscillated by a constant temperature shaker. The rotation speed of the constant temperature shaker is 160r / min, the reaction temperature is 30°C, and the reaction oscillation time is 120min. After the reaction, the solid-liquid separation is carried out.

[0029] After solid-liquid separation, filter, take the supernatant, and use a spectrophotometer to measure the residual uranium concentration in the uranium-...

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Abstract

Based on aluminum pop cans as raw materials for removing uranium and aluminum powder and the method of removing uranium, the waste aluminum pop cans are collected, washed with water, dried, the body of the aluminum pop cans is broken, the lid and the bottom of the can are removed, and then sandpaper Grind and remove the paint on the can body, wash it repeatedly with distilled water, put it in an oven for drying, the drying temperature is 105°C, and the drying time is 0.5h, then cut the dried can body into pieces, and then use a ball mill to crush and grind it into 80 The powder below the mesh is prepared to remove uranium and aluminum powder. When using uranium-removing aluminum powder to remove uranium in uranium-containing wastewater, adjust the pH value of uranium-containing wastewater to 4-7, and then add uranium-removing aluminum powder to treat uranium-containing wastewater. The dosage of uranium-removing aluminum powder is 2g / L~ 12g / L, the reaction is oscillated by a constant temperature shaker, the speed of the constant temperature shaker is 160r / min, the reaction temperature is 10°C-50°C, the reaction oscillation time is 30min-180min, and the solid-liquid separation is carried out after the reaction.

Description

technical field [0001] The invention relates to the technical field of uranium ore metallurgy, in particular to a uranium-removing aluminum powder based on an aluminum pop can as a raw material and a method for removing uranium in uranium-containing wastewater by using the uranium-removing aluminum powder. Background technique [0002] In recent years, with the rapid development of the nuclear industry, the demand for uranium as an important nuclear industry raw material is increasing day by day. At the same time, the water pollution caused by uranium has been paid more and more attention. The sources of uranium in water mainly include uranium mining, smelting and processing, uranium leakage caused by abnormal accidents in nuclear power plants, production and testing of nuclear weapons, and the use of depleted uranium weapons. How to effectively treat uranium-containing wastewater and recover uranium has become an urgent nuclear environmental problem to be solved. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F9/04C22C21/00C22C21/08G21F9/06
CPCB22F1/0003B22F9/04C22C21/00C22C21/08G21F9/06
Inventor 杨金辉黎传书戴漾泓杨斌康四军谢水波王劲松
Owner NANHUA UNIV
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