Magnetic acrylic acid series strongly basic anion exchange microballoon resin and preparation method thereof

An acrylic acid and anion technology, which is applied in the field of acrylic strong base anion exchange microsphere resin and its preparation, can solve the problems of uneven particle size of the resin, difficulty in controlling the synthesis process, difficulty in uniform dispersion of magnetic particles, etc., and achieve excellent adsorption and high strength. Effects of alkali exchange capacity and desorption kinetics

Active Publication Date: 2010-07-21
NANJING INNOVATION CENT FOR ENVIRONMENTAL PROTECTION IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the disadvantages of the existing magnetic resin and its preparation process that the magnetic particles are difficult to uniformly disperse in the monomer, and the particle size of the resin is not uniform, and the synthesis process is difficult to control, the present invention provides a magnetic acrylic strong base anion exchange microparticle The ball resin and its preparation method can realize the stable and uniform distribution of magnetic particles in the polymer by using low-cost raw materials and simple operation methods, and synthesize a magnetic acrylic system with high magnetic properties and high exchange capacity. Strong base anion exchange microsphere resin

Method used

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  • Magnetic acrylic acid series strongly basic anion exchange microballoon resin and preparation method thereof
  • Magnetic acrylic acid series strongly basic anion exchange microballoon resin and preparation method thereof
  • Magnetic acrylic acid series strongly basic anion exchange microballoon resin and preparation method thereof

Examples

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Effect test

Embodiment 1

[0036] Add 500 g of 3% gelatin by weight and 23% sodium chloride aqueous solution into a 2L three-necked flask, and control the stirring speed at 100-150 rpm. The mixed solution of 100g methyl acrylate, 2g trimethacrylic acid (trimethylolpropyl) ester, 1.0g azobisisobutyronitrile, 100g toluene, 53g ethyl acetate and 102g particle size of about 0.1μm four After the iron oxide magnetic particles are evenly mixed, add them to a three-necked flask and raise the temperature to 50°C, keep for 8 hours, then raise the temperature to 85°C, keep for 15 hours, and then discharge; wash with ethanol and dry, add 2 times the amount of resin The weight of ethylenediamine is kept at 100°C for 8 hours before discharge; after cleaning, add 300mL of 10% liquid caustic soda, add 40.8g of methyl iodide, react at 20°C for 10 hours, discharge, transform with NaCl and wash to obtain magnetic Strong base ion exchange microsphere resin.

[0037] The resulting strong base ion-exchange microsphere resin...

Embodiment 2

[0040]Add 500 g of polyvinyl alcohol with a weight ratio of 0.2% and 5% sodium chloride aqueous solution into a 2L three-necked flask, and control the stirring speed at 150-200 rpm. 90g methyl acrylate, 10g methacrylic acid, 15g trimethacrylic acid (trimethylolpropyl) ester, 5g triallyl cyanurate, 0.48g benzoyl peroxide, 10g toluene, 2g 200# The mixed solution of solvent oil and 6g ferroferric oxide magnetic particles with a particle size of about 0.1μm are uniformly mixed, then added to a three-necked flask and heated to 55°C, kept for 8 hours, heated to 85°C, kept for 10 hours, and then discharged . After cleaning the material with ethanol and drying it in the air, add N, N-dimethylpropylenediamine 2.5 times the weight of the resin, keep it at 150° C. for 30 hours, and then discharge the material. After cleaning, add 300 mL of 10% liquid caustic soda, add 63.0 g of methyl iodide, react at 40° C. for 2 hours, and then discharge. Transformation with NaCl and washing to obtai...

Embodiment 3

[0044] Add 500 g of 3% active calcium phosphate and 20% sodium chloride aqueous solution into a 2L three-necked flask, and control the stirring speed at 400-500 rpm. 90g methyl acrylate, 10g butyl methacrylate, 5g trimethacrylate (trimethylolpropyl) ester, 5g divinylbenzene, 0.4g azobisisobutyronitrile, 0.4g benzoyl peroxide, 22g 200 # The mixed solution of mineral spirits was uniformly mixed with 11 g of ferroferric oxide magnetic particles with a particle size of about 0.1 μm, then added to a three-necked flask and heated to 60° C., kept for 5 hours, then raised to 88° C. and kept for 12 hours. After washing with ethanol and drying the material, add N,N-dimethylbutylene diamine 4 times the weight of the resin and keep it at 200°C for 10 hours before discharging. After cleaning, add 300 mL of 10% liquid caustic soda, add 120 g of methyl iodide, react at 50° C. for 20 hours, and then discharge. Transformation with NaCl and washing to obtain magnetic strong base ion exchange ...

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Abstract

The invention discloses a magnetic acrylic acid series strongly basic anion exchange microballoon resin and a preparation method thereof. The microballoon resin has the following structure: the resin skeleton is internally provided with magnetic particles, wherein A stands for a radical containing quaternary ammonium salt. The preparation method comprises the following steps: acrylic acid series substances serve as a monomer, the monomer is mixed with cross-linking agent and pore-forming agent to form oil phase; the oil phase is uniformly mixed with the magnetic particles and then suspension polymerization is carried out on the mixture; after going through amination and alkylation reaction, the polymerized magnetic polymer particles form the quaternary ammonium salt, namely the magnetic acrylic acid series strongly basic anion exchange microballoon resin. Exchange capacity of the resin is higher than any magnetic acrylic acid series strongly basic anion exchange microballoon resin ever found in existing literatures and reports and domestic market as well as foreign markets and can replace the traditional strongly basic anion exchange resin, thus being capable of being used for separating and removing soluble organisms in various water bodies, especially disinfection by-product precursor and multiple negative ions such as nitrate and phosphate.

Description

technical field [0001] The invention discloses an acrylic strong base anion exchange microsphere resin and a preparation method thereof, more specifically an acrylic strong base anion exchange microsphere resin containing magnetic particles inside and a preparation method thereof. Background technique [0002] At present, magnetic strong base anion exchange resin has been used to remove some impurities in water. This kind of resin has a small particle size, usually 150-180 μm, and has a large specific surface area on the surface of the resin particle, so it performs well. dynamic performance. MIEX developed by Orica, Australia The resin is a macroporous acrylic structure with a strong base ion exchange group, so it is resistant to nitrate, sulfate, phosphate, arsenate and other anions in water, as well as dissolved organic pollutants, including some disinfection by-product precursors. Removal has good results. [0003] The preparation of magnetic resin usually involves i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/08C08L33/20C08K9/06C08K9/04C08K3/22C08K3/08C08F220/14C08F220/18C08F220/44C08F2/20C08F8/44C08J9/14B01J41/14
CPCH01F1/01C08F2/44C08L33/24Y10S428/90C08K2003/2265C22C2202/02
Inventor 李爱民双陈冬龙超刘福强王津南周庆薛玉志周友冬张满成杨维本朱兆连
Owner NANJING INNOVATION CENT FOR ENVIRONMENTAL PROTECTION IND
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