Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing magnetic strong-basicity ion exchange resin for removing organic matters in water

A technology of exchange resin and magnetic resin, which is applied in anion exchanger materials, ion exchange water/sewage treatment, magnetic field/electric field water/sewage treatment, etc., can solve the problem of high cost and complicated process of magnetic strong basic anion exchange resin, etc. problems, to achieve the effect of easy operation, simple process and large exchange capacity

Active Publication Date: 2014-04-16
HOHAI UNIV
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem to be solved: In order to solve the defects of high cost and complicated process of traditional preparation of magnetic strong basic anion exchange resin, the present invention provides a kind of Fe with large particle size 3 o 4 Method for preparing magnetic strong basic anion exchange resin with modified particle as core

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing magnetic strong-basicity ion exchange resin for removing organic matters in water
  • Method for preparing magnetic strong-basicity ion exchange resin for removing organic matters in water
  • Method for preparing magnetic strong-basicity ion exchange resin for removing organic matters in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of magnetic strongly basic anion exchange resin mPGMA:

[0028] a) Fe 3 o 4 Surface modification of particles: 31.3g of Fe 3 o 4 The powder was added to 78.2 g of a 3% oleic acid-ethanol mixed solution, stirred at a constant temperature of 50°C at a speed of 1800r / min for 5h, filtered, and dried at a constant temperature of 40°C. Fe modified by oleic acid 3 o 4 Powder, add 78.2g polyethylene glycol-water solution with a mass fraction of 50%, and ultrasonically disperse for 1h to obtain Fe 3 o 4 - suspension in polyethylene glycol.

[0029] b) Preparation of magnetic resin microspheres: Pour the mixed solution of magnetic powder-polyethylene glycol suspension, 40mL ethanol and 60mL deionized water into a 500mL three-necked flask equipped with a stirring paddle and a condenser tube, and keep the temperature at 65°C at 1800r / min Stir at a rotating speed for 10 min. Then add 25 mL of methylcellulose-water solution (MC) with a mass fraction of 0.1%, 25 m...

Embodiment 2

[0032] a) Fe 3 o 4 Surface modification of particles: 15.6g of Fe 3 o 4 The powder was added to 31.3g of oleic acid-ethanol mixed solution with a mass fraction of 2%, stirred at a constant temperature of 55°C at a speed of 1800r / min for 6h, filtered, and dried at a constant temperature of 40°C. Fe modified by oleic acid 3 o 4 Powder, add 31.3g polyethylene glycol aqueous solution with a mass fraction of 50%, and ultrasonically disperse for 1h to obtain Fe 3 o 4 - suspension in polyethylene glycol.

[0033] b) Preparation of magnetic resin microspheres: Pour the mixed solution of magnetic powder-polyethylene glycol suspension, 40mL ethanol and 60mL deionized water into a 500mL three-necked flask equipped with a stirring paddle and a condenser tube, and keep the temperature at 65°C at 1800r / min Stir at high speed for 15 minutes. Then add 25 mL of methylcellulose-water solution (MC) with a mass fraction of 0.1%, 25 mL of NaCl-water solution with a mass fraction of 5%, 50 ...

Embodiment 3

[0036] a) Fe 3 o 4 Surface modification of particles: 36.5g of Fe 3 o 4 The powder was added to 109.4 g of oleic acid-ethanol mixed solution with a mass fraction of 4%, stirred at a constant temperature of 45°C at a speed of 1800r / min for 3h, filtered, and dried at a constant temperature of 40°C. Fe modified by oleic acid 3 o 4 Powder, add 109.4g polyethylene glycol aqueous solution with a mass fraction of 50%, and ultrasonically disperse for 1h to obtain Fe 3 o 4 - suspension in polyethylene glycol.

[0037] b) Preparation of magnetic resin microspheres: Pour the mixed solution of magnetic powder-polyethylene glycol suspension, 40mL ethanol and 60mL deionized water into a 500mL three-necked flask equipped with a stirring paddle and a condenser tube, and keep the temperature at 65°C at 1800r / min Stir at a rotating speed for 10 min. Then add 25 mL of methylcellulose-water solution (MC) with a mass fraction of 0.1%, 25 mL of NaCl-water solution with a mass fraction of 5%...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a magnetic strong-basicity ion exchange resin for removing organic matters in water. The invention discloses a method for preparing a magnetic strong-basicity ion exchange resin for water treatment. The method comprises the following steps of: preparing a Fe3O4-polyethylene glycol suspension which is stably dispersible and easy to be compatible with a glycidyl methacrylate monomer by modifying the surfaces of Fe3O4 particles; and then synthesizing the magnetic strong-basicity ion exchange resin with the Fe3O4 particle as the kernel thereof and an ion exchange resin as the shell thereof by a suspension polymerization method, wherein the prepared magnetic strong-basicity ion exchange resin has excellent magnetic separation property and high ion exchange speed. The preparation method disclosed in the invention is simple, and easy to be controlled in preparation process; and the prepared magnetic strong-basicity ion exchange resin is stable in quality.

Description

technical field [0001] The invention relates to a preparation method of a magnetic strong basic ion exchange resin, in particular to a preparation method of a magnetic strong basic ion exchange resin used for removing organic matter in water. Background technique [0002] In recent years, the content of organic matter in source water has gradually increased, and its composition has become more and more complex. Organic matter pollution in source water will lead to poor water quality, and organic matter in source water is the precursor of disinfection by-products, which poses a certain threat to human health. The current methods of organic matter removal mainly include enhanced coagulation, activated carbon adsorption, biological pretreatment and advanced oxidation. Among them, activated carbon adsorption is widely used, but its cost is high and the existing technology is difficult to achieve satisfactory regeneration, which limits its development to a certain extent. [00...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J41/08C02F1/42C02F1/48
Inventor 陈卫刘成刘煜
Owner HOHAI UNIV