Synthesis method and application of uranyl adsorbent material

A synthesis method and technology of adsorption materials, which are applied in the field of synthesis of uranyl adsorption materials, can solve the problems of low adsorption capacity, poor adsorption selectivity, and high manufacturing cost, and achieve the effects of high physical adsorption pores, improved performance, and large specific surface area

Active Publication Date: 2017-11-17
CGN DASHENG ELECTRON ACCELERATOR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these adsorbents generally have problems such as high manufacturing cost, low adsorption capacity, poor adsorption selectivity, and poor stability in use.

Method used

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  • Synthesis method and application of uranyl adsorbent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Put 17 parts by weight of straw fiber (fineness ≥ 30 mesh, ash content ≤ 2wt%) into a mixing tank, add 500 parts by weight of clear water, 130 parts by weight of polyvinyl alcohol (brand 1799), 20 parts by weight of styrene, propylene 0.9 parts by weight of nitrile, 0.5 parts by weight of fatty alcohol polyoxyethylene ether (brand AEO-3), 10 parts by weight of isopropanol, and stir evenly;

[0040] (2) Send the feed liquid prepared in (1) to irradiate under the electron beam, so that the absorbed dose of the feed liquid reaches 110kGy, and then the gel plate is obtained;

[0041] (3) cutting the gel plate obtained in (2) into rubber particles through a cutting machine;

[0042] (4) Add 10 parts by weight of the particles obtained in (3) into 1.5 parts by weight of acrylonitrile, mix uniformly, and the irradiation dose under the electron beam reaches 50kGy to obtain a grafted cross-linked body;

[0043] (5) Add 4 parts by weight of hydroxylamine hydrochloride to the...

Embodiment 2

[0047] (1) Put 13 parts by weight of wood pulp fibers (fineness ≥ 40 mesh, ash content ≤ 2wt%) into a mixing tank, add 500 parts by weight of clear water, 100 parts by weight of polyvinyl alcohol (brand 1788), polystyrene emulsion (solid 10 parts by weight, 1.2 parts by weight of acrylonitrile, 0.5 parts by weight of fatty alcohol polyoxyethylene ether (brand AEO-9), 10 parts by weight of isopropanol, and 0.2 parts by weight of divinylbenzene part, 4 parts by weight of styrene, stir evenly;

[0048] (2) Send the feed liquid prepared in (1) to irradiate under the electron beam, so that the absorbed dose of the feed liquid reaches 140kGy, and then the gel plate is obtained;

[0049] (3) cutting the gel plate obtained in (2) into rubber particles through a cutting machine;

[0050] (4) 10 parts by weight of the particles obtained in (3) were added to 1.2 parts by weight of acrylonitrile, mixed uniformly, and the irradiation dose reached 65kGy under the electron beam to obtain a ...

Embodiment 3

[0054] (1) Put 11 parts by weight of straw fiber (fineness ≥ 30 mesh, ash content ≤ 2wt%) into a mixing tank, add 600 parts by weight of clear water, 130 parts by weight of polyvinyl alcohol (brand 1799), 20 parts by weight of styrene, propylene 0.9 parts by weight of nitrile, 0.5 parts by weight of fatty alcohol polyoxyethylene ether (brand AEO-3), 12 parts by weight of isopropanol, and stir evenly;

[0055] (2) Send the feed liquid prepared in (1) to irradiate under the electron beam, so that the absorbed dose of the feed liquid reaches 100kGy, and then the gel plate is obtained;

[0056] (3) cutting the gel plate obtained in (2) into rubber particles through a cutting machine;

[0057] (4) Add 10 parts by weight of the particles obtained in (3) to 1.8 parts by weight of acrylonitrile, mix uniformly, and the irradiation dose reaches 60kGy under the electron beam to obtain a grafted cross-linked body;

[0058] (5) Add 4.8 parts by weight of hydroxylamine hydrochloride to the...

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Abstract

The invention belongs to the field of adsorbent materials, and particularly relates to a synthesis method and an application of a uranyl adsorbent material. The provided synthesis method comprises the following steps: a) fibers, a polymer, a double-bond monomer and water are mixed and subjected to electron beam irradiation, and a gel body is obtained, wherein the polymer comprises one or more of polyvinyl alcohol, polyvinylpyrrolidone, polystyrene and polyacrylonitrile; the double-bond monomer comprises one or more of acrylonitrile, divinyl benzene, styrene, acrylic acid, acrylamide, butadiene, pentadiene and 1,3,5-tri-2-propenyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione; b) the gel is mixed with acrylonitrile for electron beam irradiation, and a graft cross-linked body is obtained; c) the graft cross-linked body is mixed with the gel body for a reaction, and the uranyl adsorbent material is obtained. The provided synthesis method has the advantages that the cost is low, the adsorption capacity of the synthesized uranyl adsorbent material is high, the adsorptive selectivity for uranyl is good, and good use stability is realized.

Description

technical field [0001] The invention belongs to the field of adsorption materials, in particular to a synthesis method and application of uranyl adsorption materials. Background technique [0002] Uranium is an important raw material for nuclear power. Therefore, the development of uranium resources is an important demand for the development of nuclear power in my country. my country's terrestrial uranium resources are extremely scarce, while the total amount of uranium resources in seawater is about 4.5 billion tons, which is equivalent to 1000 times the uranium content in land ores. Therefore, uranium extraction from seawater has become a promising source of nuclear fuel supply and an inevitable trend in the future development of the nuclear industry. [0003] Uranium generally exists in the ocean in the form of uranyl ions. Since the 1960s, Japan, the United States, France and other countries have been engaged in the research of seawater uranium extraction projects, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C08F261/04C08F285/00C08F291/08C08F212/08C08F220/44C08F212/36C08F8/32D06M14/22D06M101/04C02F103/08
CPCB01J20/261C02F1/285C02F2103/08C08F8/32C08F257/02C08F261/04C08F285/00D06M14/22D06M2101/04C08F212/08C08F220/44C08F212/36
Inventor 王千宇朱南康郑庆信苏春肖峰
Owner CGN DASHENG ELECTRON ACCELERATOR TECH
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