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Copper alginate/copper ferrocyanide blend fiber and preparation method thereof

A technology of copper ferrocyanide and copper alginate, which is applied in the fields of fiber chemical characteristics, spinning solution preparation, alginate artificial filament, etc. Small copper particle size and other problems, to achieve high cesium removal efficiency, small particle size, and improve the effect of adsorption capacity

Active Publication Date: 2021-07-13
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The copper ferrocyanide used in the existing adsorption method has a small particle size and is in powder form, so it can only adsorb radioactively polluted seawater in small areas, but cannot be applied to large-scale seawater radioactive pollution treatment.

Method used

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  • Copper alginate/copper ferrocyanide blend fiber and preparation method thereof
  • Copper alginate/copper ferrocyanide blend fiber and preparation method thereof
  • Copper alginate/copper ferrocyanide blend fiber and preparation method thereof

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preparation example Construction

[0026] in, figure 2 It is a method flow chart of a method for preparing a copper alginate / copper ferrocyanide blend fiber shown according to an exemplary embodiment of the present invention. Such as figure 2 As shown, the method includes:

[0027] In step 100, sodium ferrocyanide is added to the sodium alginate solution and evenly stirred, and then the sodium alginate / sodium ferrocyanide spinning stock solution is obtained by standing for defoaming and filtering.

[0028] The mass fraction of sodium alginate in the sodium alginate solution is 4.5-5.5%, and the mass fraction of sodium ferrocyanide in the sodium alginate / sodium ferrocyanide spinning stock solution is 3-8%.

[0029] In step 200, copper sulfate solution is used as a coagulation bath, and the sodium alginate / sodium ferrocyanide spinning stock solution is subjected to wet spinning to prepare copper alginate / copper ferrocyanide blended fibers.

[0030] The mass fraction of copper sulfate in the copper sulfate so...

Embodiment 1

[0041] (1) After adding sodium ferrocyanide to the sodium alginate solution and stirring evenly, the sodium alginate / sodium ferrocyanide spinning stock solution was obtained by standing for defoaming and filtering.

[0042] The mass fraction of sodium alginate in the sodium alginate solution is 4.5%, and the mass fraction of sodium ferrocyanide in the sodium alginate / sodium ferrocyanide spinning stock solution is 3%.

[0043] (2) Copper sulfate solution is used as a coagulation bath, and the sodium alginate / sodium ferrocyanide spinning stock solution is wet-spun to prepare copper alginate / copper ferrocyanide blend fibers.

[0044] The massfraction of copper sulfate in described copper sulfate solution is 5%.

Embodiment 2

[0046] (1) After adding sodium ferrocyanide to the sodium alginate solution and stirring evenly, the sodium alginate / sodium ferrocyanide spinning stock solution was obtained by standing for defoaming and filtering.

[0047] The mass fraction of sodium alginate in the sodium alginate solution is 5%, and the mass fraction of sodium ferrocyanide in the sodium alginate / sodium ferrocyanide spinning stock solution is 5%.

[0048] (2) Copper sulfate solution is used as a coagulation bath, and the sodium alginate / sodium ferrocyanide spinning stock solution is wet-spun to prepare copper alginate / copper ferrocyanide blend fibers.

[0049] The massfraction of copper sulfate in described copper sulfate solution is 10%.

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Abstract

The invention discloses a copper alginate / copper ferrocyanide blend fiber and a preparation method thereof, and relates to the technical field of radionuclide purification materials. According to the copper alginate / copper ferrocyanide blend fiber and the preparation method thereof provided by the invention, sodium ferrocyanide is added into a sodium alginate solution to prepare a sodium alginate / sodium ferrocyanide spinning solution; a copper sulfate solution is adopted as a coagulating bath, the sodium alginate / sodium ferrocyanide spinning solution is subjected to wet spinning forming to form the copper alginate fiber, and meanwhile copper ferrocyanide particles are separated out in situ in the copper alginate fiber to obtain the copper alginate / copper ferrocyanide blend fiber. According to the copper alginate / copper ferrocyanide blend fiber, copper alginate serves as a dispersion medium of copper ferrocyanide, the technical problem that powdered copper ferrocyanide has relatively poor adsorption capacity on radionuclide cesium can be solved, and the technical effect of improving the adsorption capacity of copper ferrocyanide on radionuclide cesium is achieved.

Description

technical field [0001] The invention relates to the technical field of radionuclide purification materials, in particular to a copper alginate / copper ferrocyanide blend fiber and a preparation method thereof. Background technique [0002] The problem of radioactive pollution in the ocean has become the focus of attention. 137 Cs and 135Cs have become the main sources of artificial radionuclides in the marine environment. Although with the decay of 137 Cs and 135 Cs and the dilution of seawater, Its impact on the marine environment will gradually weaken, but it has a long half-life, strong radioactivity and high mobility, which will cause great harm to human health. [0003] Artificial radionuclides such as 137 Cs and 135 Cs in the ocean are the nuclear fission products of nuclear bombs, nuclear weapons tests and nuclear reactors. Artificial radionuclides such as 137 Cs and 135 Cs in the marine environment mainly come from nuclear explosions and nuclear power plants. With th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/04D01F1/10D01D5/06D01D1/02
CPCD01F9/04D01F1/10D01D5/06D01D1/02
Inventor 兰平朱凌凯吕佳朱洪敏唐源
Owner JIAXING UNIV
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