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

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

Active Publication Date: 2012-07-04
NANJING INNOVATION CENT FOR ENVIRONMENTAL PROTECTION IND
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  • Summary
  • 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

Experimental program
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Effect test

Embodiment 1

[0036] 500 g of an aqueous solution containing 3% by weight of gelatin and 23% of sodium chloride was added to a 2L three-necked flask, and the stirring speed was controlled at 100-150 rpm. A mixed solution of 100g methyl acrylate, 2g trimethacrylate (trimethylolpropyl) ester, 1.0g azobisisobutyronitrile, 100g toluene, 53g ethyl acetate and 102g tetrafluoroethylene with a particle size of about 0.1μm were prepared. After the ferric oxide magnetic particles are uniformly mixed, put into a three-necked flask and heat up to 50 ° C, hold for 8 hours, heat up to 85 ° C, hold for 15 hours and then discharge; after washing with ethanol and drying, add 2 times the amount of resin The weight of ethylenediamine was kept at 100 ° C for 8 hours and then discharged; after cleaning, 300 mL of 10% liquid caustic soda was added, 40.8 g of methyl iodide was added, and the material was discharged after reacting at 20 ° C for 10 hours. Strong base ion exchange microsphere resin.

[0037] The ob...

Embodiment 2

[0040]500 g of an aqueous solution containing polyvinyl alcohol with a weight ratio of 0.2% and 5% of sodium chloride was added to a 2L three-necked flask, and the stirring speed was controlled at 150-200 rpm. 90g methyl acrylate, 10g methacrylic acid, 15g trimethacrylate (trimethylolpropyl), 5g triallyl cyanurate, 0.48g benzoyl peroxide, 10g toluene, 2g 200# The mixed solution of solvent oil and 6g of ferric oxide magnetic particles with a particle size of about 0.1 μm were uniformly mixed, then added to a three-necked flask and heated to 55 ° C, kept for 8 hours, heated to 85 ° C, and discharged after 10 hours . After washing and drying with ethanol, N,N-dimethylpropanediamine, which is 2.5 times the weight of the resin, was added and kept at 150° C. for 30 hours before discharging. After cleaning, 300 mL of 10% liquid caustic soda was added, 63.0 g of methyl iodide was added, and the mixture was reacted at 40° C. for 2 hours and then discharged. The magnetic strong alkali...

Embodiment 3

[0044] 500 g of active calcium phosphate and 20% sodium chloride aqueous solution with a weight ratio of 3% were added to a 2L three-necked flask, and the stirring speed was controlled at 400-500 rpm. 90g methyl acrylate, 10g butyl methacrylate, 5g trimethacrylate (trimethylolpropyl), 5g divinylbenzene, 0.4g azobisisobutyronitrile, 0.4g benzoyl peroxide, 22g 200 # The mixed solution of solvent oil 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 for 5 hours, then heated to 88°C and kept for 12 hours. After washing and drying with ethanol, N,N-dimethylbutanediamine, which is 4 times the weight of the resin, was added and kept at 200° C. for 10 hours before discharging. After cleaning, 300 mL of 10% liquid caustic soda was added, 120 g of methyl iodide was added, and the mixture was reacted at 50° C. for 20 hours and then discharged. The magnetic strong alkali ion e...

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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 and a preparation method thereof. Background technique [0002] At present, magnetic strong base anion exchange resins have been used to remove some impurities in water bodies. Due to the small particle size of this resin, usually 150-180 μm, it has a large specific surface area on the surface of the resin particles, so it shows good performance. dynamic performance. MIEX developed by Orica, Australia The resin is a macroporous acrylic structure with a strong base ion exchange group, so it is very sensitive to nitrate, sulfate, phosphate, arsenate and other anions in water, as well as dissolved organic pollutants, including some disinfection by-product precursors. Removal with good results. [0003] The preparation of magnetic resin u...

Claims

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Application Information

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Patent Type & Authority Patents(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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