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One-step-synthesized chelate resin with 8-hydroxyquinoline group and preparation method thereof

A technology of hydroxyquinoline and chelating resin, applied in chemical instruments and methods, other chemical processes, alkali metal compounds, etc., can solve problems such as difficult reaction conditions, cumbersome steps, complicated reaction process, etc., and achieve high chelating group Good effect on content and spherical shape

Active Publication Date: 2020-12-15
NANKAI CANGZHOU BOHAI NEW AREA GREENING CHEM RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reaction process is complicated, the steps are cumbersome, the reaction conditions are relatively difficult, and the energy consumption is large

Method used

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  • One-step-synthesized chelate resin with 8-hydroxyquinoline group and preparation method thereof
  • One-step-synthesized chelate resin with 8-hydroxyquinoline group and preparation method thereof
  • One-step-synthesized chelate resin with 8-hydroxyquinoline group and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Dissolve 0.9g of Span 80 and 0.1g of Tween 85 in 199g of 1,2-dichloroethane, add it to a 500ml three-necked flask equipped with a condensation device and a heating and temperature control device, stir to dissolve completely, and raise the temperature to 55°C , to obtain the dispersed phase. Weigh 8.4g of hydroquinone, 6.3g of 8-hydroxyquinoline, 18.8g of formaldehyde solution, 9mL of concentrated hydrochloric acid and 37.7g of ethylene glycol, mix them evenly, add them into a three-necked flask and stir, and slowly adjust the speed to the droplet size Between 0.3 and 0.5 mm, with a fixed speed, slowly raise the temperature to 75°C until the resin ball is shaped, and keep it warm for 5 hours. After the reaction is completed, the polymer product is obtained by filtering, washing and bottling.

[0024] The appearance characteristics and characterization parameters of the chelating resin with 8-hydroxyquinoline group that the present example obtains are: the appearance is ...

Embodiment 2

[0026] Dissolve 0.9g of Span 80 and 0.1g of Tween 85 in 199g of 1,2-dichloroethane, add it to a 500ml three-necked flask equipped with a condensation device and a heating and temperature control device, stir to dissolve completely, and raise the temperature to 55°C , to obtain the dispersed phase. Weigh 8.4g of hydroquinone, 6.3g of 8-hydroxyquinoline, 18.8g of formaldehyde solution, 9mL of concentrated hydrochloric acid and 29.9g of ethylene glycol, mix them evenly, add them into a three-necked flask and stir, slowly adjust the speed to the droplet size Between 0.3 and 0.5 mm, with a fixed speed, slowly raise the temperature to 75°C until the resin ball is shaped, and keep it warm for 5 hours. After the reaction is completed, the copolymer is obtained by filtering, washing and bottling.

[0027] The appearance characteristics and the characterization parameters of the chelating resin with 8-hydroxyquinoline group that the present example obtains are: the appearance is a brow...

Embodiment 3

[0029] Dissolve 1.8g of Span 80 and 0.2g of Tween 85 in 398g of 1,2-dichloroethane, add it to a 1L three-necked flask equipped with a condensing device and a heating and temperature control device, stir to dissolve completely, and raise the temperature to 55°C , to obtain the dispersed phase. Weigh 16.8g of hydroquinone, 12.6g of 8-hydroxyquinoline, 37.5g of formaldehyde solution, 18mL of concentrated hydrochloric acid and 75.4g of ethylene glycol, mix them evenly, add them into a three-necked flask and stir, slowly adjust the speed to the droplet size Between 0.3 and 0.5 mm, with a fixed speed, slowly raise the temperature to 73°C, the resin ball is shaped, raise the temperature to 75°C, and keep it warm for 5 hours. After the reaction is completed, the copolymer is obtained by filtering, washing and bottling.

[0030] The appearance characteristics and the characterization parameters of the chelating resin with 8-hydroxyquinoline group that the present example obtains are: ...

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Abstract

The invention provides one-step-synthesized chelate resin with 8-hydroxyquinoline group and a preparation method thereof. The spherical 8-hydroxyquinoline chelate resin is prepared by utilizing chemical reaction among 8-hydroxyquinoline, hydroquinone and formaldehyde through condensation polymerization and reverse suspension polymerization. The preparation method of the resin provided by the invention comprises the following steps: dissolving span 80 and Tween 85 in 1,2-dichloroethane and / or liquid paraffin to obtain a dispersion phase; uniformly mixing the 8-hydroxyquinoline, the hydroquinone, a formaldehyde solution and a pore-foaming agent to obtain a reaction phase; and under the action of mechanical stirring, dispersing the reaction phase into spherical liquid drops in the dispersionphase, and completing polymerization reaction to obtain the chelate resin with the 8-hydroxyquinoline group. Results of the embodiment show that the resin prepared by the method provided by the invention is good in spherical shape and is brown or black particles in appearance, the particle size range is 0.3-0.5 mm, the water content is 70-79%, and the nitrogen content is 0.56-1.55% (w%).

Description

technical field [0001] The invention belongs to the field of chelating resins, and relates to 8-hydroxyquinoline group-based chelating resins, in particular to a method for synthesizing 8-hydroxyquinoline chelating resins in one step by means of condensation polymerization and reverse suspension polymerization. Background technique [0002] Chelating resins are more and more widely used in the capture and separation of metal ions, the separation and analysis of metal ions in seawater or water samples, and the environment because of their large adsorption capacity and the advantages of releasing chelated metal ions under appropriate conditions. Baobao et al. (Zhang Huawen. Process application of chelating resin in resource treatment of heavy metal wastewater [J]. Green Technology, 2019(12): 84-87+90). At present, such resins mostly use macroporous resins such as polystyrene, polyacrylate, and polyacrylonitrile as the matrix, and introduce chelating groups through functional g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/20C08G8/08B01J20/26B01J20/28B01J20/30
CPCC08G8/20C08G8/08B01J20/262B01J20/28004B01J20/28019
Inventor 宋晓松王春红
Owner NANKAI CANGZHOU BOHAI NEW AREA GREENING CHEM RES CO LTD