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A kind of macroporous cross-linked adsorption resin containing tertiary amine hydrochloride functional group and preparation method thereof

A technology containing tertiary amine hydrochloride and tertiary amine hydrochloride, which is applied in chemical instruments and methods, and other chemical processes, can solve the problems of strong fluidity and difficult removal of toxic oxyacid anions, and achieve low price , The effect of easy access to raw materials

Active Publication Date: 2022-05-13
GUANGXI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unlike organic pollutants, toxic oxyacid anions are highly mobile and not easily removed

Method used

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  • A kind of macroporous cross-linked adsorption resin containing tertiary amine hydrochloride functional group and preparation method thereof
  • A kind of macroporous cross-linked adsorption resin containing tertiary amine hydrochloride functional group and preparation method thereof
  • A kind of macroporous cross-linked adsorption resin containing tertiary amine hydrochloride functional group and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Preparation of trimethylolpropane trimethacrylate-dimethylaminoethyl methacrylate macroporous adsorption resin

[0039] In a three-neck round bottom flask, add 60mL distilled water, 0.04g polyvinyl alcohol, 0.04g sodium dodecylsulfonate dispersant and 0.05g bentonite, install a stirrer, water separator, reflux condenser and thermometer, and stir Under certain conditions, heat to 100°C to dissolve it completely, then cool to room temperature to form a homogeneous aqueous phase.

[0040]In addition, take 4g of trimethylolpropane trimethacrylate, 8g of dimethylaminoethyl methacrylate, 40mL of toluene and 4mL of liquid paraffin as porogens, ultrasonically dissolve them completely, and then add 1g of azobisisobutyl Nitrile is used as an initiator, and ultrasonic waves disperse it to form a uniform organic phase.

[0041] Slowly add the fully dissolved organic phase to the water phase at a constant stirring speed, pre-disperse for 5 minutes, then slowly raise the temperat...

Embodiment 2

[0047] 1. Preparation of trimethylolpropane trimethacrylate-dimethylaminoethyl methacrylate macroporous adsorption resin

[0048] In a three-neck round bottom flask, add 60mL distilled water, 0.05g polyvinyl alcohol, 0.05g sodium dodecylsulfonate dispersant and 0.06g bentonite, install a stirrer, a water separator, a reflux condenser and a thermometer, and stir Under certain conditions, heat to 100°C to dissolve it completely, then cool to room temperature to form a homogeneous aqueous phase.

[0049] In addition, take 6g of trimethylolpropane trimethacrylate, 6g of dimethylaminoethyl methacrylate, 40mL of toluene and 4mL of liquid paraffin as porogens, ultrasonically dissolve them completely, and then add 0.9g of azobisiso Butyronitrile is used as an initiator, and it is dispersed by ultrasonic waves to form a uniform organic phase.

[0050] Slowly add the fully dissolved organic phase to the water phase at a constant stirring speed, pre-disperse for 5 minutes, then slowly r...

Embodiment 3

[0055] 1. Preparation of trimethylolpropane trimethacrylate-dimethylaminoethyl methacrylate macroporous adsorption resin

[0056] In a three-neck round bottom flask, add 60mL distilled water, 0.06g polyvinyl alcohol, 0.06g sodium dodecylsulfonate dispersant and 0.07g bentonite, install a stirrer, water separator, reflux condenser and thermometer, and stir Under certain conditions, heat to 100°C to dissolve it completely, then cool to room temperature to form a homogeneous aqueous phase.

[0057] In addition, take 5g of trimethylolpropane trimethacrylate, 7g of dimethylaminoethyl methacrylate, 20mL of toluene and 2mL of liquid paraffin as porogens, ultrasonically dissolve them completely, and then add 1.1g of azobisiso Butyronitrile is used as an initiator, and it is dispersed by ultrasonic waves to form a uniform organic phase.

[0058] Slowly add the fully dissolved organic phase to the water phase at a constant stirring speed, pre-disperse for 5 minutes, then slowly raise t...

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Abstract

The invention discloses a macroporous cross-linked adsorption resin containing tertiary amine hydrochloride functional groups and a preparation method thereof. The present invention uses a trifunctional group crosslinking agent (trimethylolpropane trimethacrylate) and a functional monomer (dimethylaminoethyl methacrylate) as raw materials to prepare trimethylolpropane trimethacrylate through free radical suspension polymerization. Methacrylate tertiary amine resin, after soaking and modifying its tertiary amine group ‑N(CH3)2 with hydrochloric acid, a macroporous cross-linked resin containing tertiary amine hydrochloride functional groups can be obtained, which can be used for toxic and Adsorption removal of oxoacid anions (perchlorate, bromate, arsenite and arsenate). The novel adsorption resin developed by the present invention has the characteristics of environmental protection, high efficiency and wide adaptability, etc., and is used to solve the safety problem of drinking water, so as to realize the production of safe, environment-friendly and clean drinking water.

Description

technical field [0001] The invention belongs to the technical field of purification and pollutant treatment of drinking water sources, and in particular relates to a macroporous cross-linked adsorption resin containing tertiary amine hydrochloride functional groups and a preparation method thereof. Background technique [0002] At present, the safety of drinking water, especially the impact of micro-pollutants on human health has become one of the research hotspots in the field of environment. Unlike organic pollutants, toxic oxyacid anions are highly mobile and cannot be easily removed. Therefore, the removal of toxic oxoacid anions such as perchlorate, bromate, arsenite, and arsenate from water is essential for the protection of humans and the environment. [0003] Among them, perchlorate (Perchlorate, ClO 4 - ) is a new type of inorganic pollutant. Due to its high stability, high water solubility and strong oxidizing properties, it is often used as a safe oxidizing ag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/34C08F222/14C08J9/28B01J20/26B01J20/30C08L33/14C08L35/02
CPCC08F220/34C08F222/103C08J9/286B01J20/261C08J2335/02C08J2333/14
Inventor 刘绍刚刘雪虎刁开盛罗虎张丹丹刘苏妮谭学才
Owner GUANGXI UNIV FOR NATITIES
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