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A kind of imidazoline polymer material for extracting uranium and its preparation method

A polymer and imidazoline technology, which is applied in the field of imidazoline polymer uranium extraction materials and its preparation, can solve problems such as poor universality, and achieve the effects of broad market prospects, high-efficiency coordination performance, and large adsorption capacity

Active Publication Date: 2019-10-29
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have good separation effects for specific separation systems, but are not universally applicable.

Method used

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  • A kind of imidazoline polymer material for extracting uranium and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0022] 1. Weigh 0.01 g of 1-(2-N-allylaminoethyl)-2-oleyl imidazoline and 0.1 g of alkylphenol polyoxyethylene ether into a 250 mL three-necked flask, add 50 mL of distilled water and stir 0.5 h to dissolve completely. At room temperature, add 50 mL of distilled water, 4 g of acrylamide and 1 g of acrylonitrile into the three-necked flask, and stir to dissolve them completely. Place the three-necked flask in a water bath, and adjust the temperature of the water bath to 50 o C, access N 2 After stirring for 30 min, ammonium persulfate and sodium bisulfite with a molar ratio of 1:1 were added and reacted at constant temperature for 8 h to obtain a light yellow transparent copolymer product, which was repeatedly washed and purified with ethanol, and placed in 40 o C is vacuum-dried to obtain white granular product AM / AN / NIPA;

[0023] 2. Prepare a water and methanol solution with a volume ratio of 1:1, then add hydroxylamine hydrochloride, prepare a 1.5mol / L~2mol / L hydroxylam...

Embodiment 2

[0027] 1. Weigh 0.02g of 1-(2-N-allylaminoethyl)-2-oleyl imidazoline and 0.1g of alkylphenol polyoxyethylene ether into a 250 mL three-necked flask, add 50 mL of distilled water and stir 0.5 h to dissolve completely. At room temperature, add 50 mL of distilled water, 4 g of acrylamide and 1 g of acrylonitrile into the three-necked flask, and stir to dissolve them completely. Place the three-necked flask in a water bath, and adjust the temperature of the water bath to 50 o C, access N 2 After stirring for 30 min, ammonium persulfate and sodium bisulfite with a molar ratio of 1:1 were added and reacted at constant temperature for 8 h to obtain a light yellow transparent copolymer product, which was repeatedly washed and purified with ethanol, and placed in 40 o C is vacuum-dried to obtain white granular product AM / AN / NIPA;

[0028] 2. Prepare a water and methanol solution with a volume ratio of 1:1, then add hydroxylamine hydrochloride, prepare a 1.5mol / L~2mol / L hydroxylamin...

Embodiment 3

[0032] 1. Weigh 0.03g of 1-(2-N-allylaminoethyl)-2-oleyl imidazoline and 0.1g of alkylphenol polyoxyethylene ether into a 250 mL three-necked flask, add 50 mL of distilled water and stir 0.5 h to dissolve completely. At room temperature, add 50 mL of distilled water, 4 g of acrylamide and 1 g of acrylonitrile into the three-necked flask, and stir to dissolve them completely. Place the three-necked flask in a water bath, and adjust the temperature of the water bath to 50 o C, access N 2 After stirring for 30 min, ammonium persulfate and sodium bisulfite with a molar ratio of 1:1 were added and reacted at constant temperature for 8 h to obtain a light yellow transparent copolymer product, which was repeatedly washed and purified with ethanol, and placed in 40 o C is vacuum-dried to obtain white granular product AM / AN / NIPA;

[0033] 2. Prepare a water and methanol solution with a volume ratio of 1:1, then add hydroxylamine hydrochloride, prepare a 1.5mol / L~2mol / L hydroxylamin...

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Abstract

The invention discloses an imidazoline macromolecular uranium-extracting material and a preparation method thereof. The imidazoline macromolecular uranium-extracting material is prepared from the following raw material components: 78.9 to 79.4 percent of acrylamide, 19.8 percent of acrylonitrile, 0.2 to 0.7 percent of 1-(2-N-allyl aminoethyl)-2-oleic acid imidazoline and 0.6 percent of an initiator; and the initiator is ammonium persulfate and sodium hydrogen sulfite. The preparation method of the imidazoline macromolecular uranium-extracting material comprises the following steps: preparing a polymer AM / AN / NIPA by using the acrylamide, the acrylonitrile, and the 1-(2-N-allyl aminoethyl)-2-oleic acid imidazoline; and performing amidoximation reaction by using hydroxylamine hydrochloride to obtain the imidazoline macromolecular uranium-extracting material AM / AN / NIPA. The imidazoline macromolecular uranium-extracting material has efficient coordination performance, can effectively capture uranium ions and has the advantages of large adsorption capacity, high stability and high anti-jamming capability; and the preparation method is simple, convenient and high in efficiency.

Description

technical field [0001] The invention belongs to the technical field of uranium extraction from seawater and uranium-containing wastewater treatment, and specifically relates to an imidazoline polymer uranium extraction material and a preparation method thereof. Background technique [0002] The International Energy Agency predicts that the world's energy demand will increase by 65% ​​by 2020. At that time, the world's energy supply will be seriously insufficient, and traditional energy cannot meet human needs. Nuclear energy will play an important role in making up for the energy gap. With the development of the world's nuclear energy industry, the demand for uranium resources is increasing day by day. At the same time, the treatment of uranium-containing waste liquid in spent fuel has become a difficult problem that all nuclear energy countries must face. On the one hand, high-efficiency uranium extraction materials can be used to extract uranium from seawater. There are ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/56C08F220/44C08F226/02G21F9/08G21F9/06G21F9/12
CPCC08F220/56G21F9/06G21F9/08G21F9/12C08F220/44C08F226/02
Inventor 文君汪小琳李昊胡胜熊洁邵大冬
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF