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Nanoparticle structure magnetic water purifier and preparation method thereof

A nanoparticle and water purifying agent technology, which is applied in the preparation of water purifying agent, magnetic water purifying agent with nanoparticle structure, and magnetic water purifying agent with nanoparticle structure. problem, to achieve the effect of simple preparation method, easy industrial production, and large specific surface area

Inactive Publication Date: 2018-09-04
广州小众环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are physical methods, chemical methods, biological treatment methods and other methods for sewage treatment. Although there are many types of treatment methods, the following problems generally exist in many treatment methods: high economic cost, complicated treatment process, and inability to treat harmful substances at one time , especially heavy metals that require multiple repeated treatments; due to incomplete sewage treatment, the treated water sources still cause varying degrees of harm to the human body
Guar gum has low cost, good water solubility and high molecular weight, but it cannot quickly swell and hydrate, has a slow dissolution rate, small surface area, is easily decomposed by microorganisms and cannot be stored for a long time, and is not easy to separate from the liquid phase. and other characteristics, so its application has been greatly restricted

Method used

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  • Nanoparticle structure magnetic water purifier and preparation method thereof
  • Nanoparticle structure magnetic water purifier and preparation method thereof

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Effect test

Embodiment 1

[0025] A magnetic water purifying agent with a nanoparticle structure provided by the present invention is iron ferric oxide nanoparticles wrapped in carboxymethyl guar gum epichlorohydrin polymer, which is prepared sequentially through the following steps:

[0026] Weigh 50g of guar gum powder, add to 250ml of ethanol and mix, and add 150ml (50g / L) KOH solution and stir for 10min, then add 50ml of epichlorohydrin, stir and react for 5h at room temperature, then add 50ml of epoxy chloride The reaction was stirred with propane at room temperature for 8h. Add 500 mL of ethanol pre-cooled with ice for precipitation to obtain a precipitate, then wash the precipitate repeatedly with ethanol and acetone, and vacuum dry to collect the crude product.

[0027] Take 50g of the above dried product, add it to 500mL (50g / L) NaOH solution, add 35g monochloroacetic acid, stir for 5h, neutralize it with 2M hydrochloric acid solution, and cool to 4°C. After NaCl was filtered off, 500 ml was a...

Embodiment 2

[0030] Another magnetic water purifying agent with a nanoparticle structure provided by the present invention is iron ferric oxide nanoparticles wrapped by carboxymethyl guar gum epichlorohydrin polymer, which is prepared sequentially through the following steps:

[0031] Weigh 50g of guar gum powder, add 100ml of isopropanol, add 50ml (50g / L) NaOH solution and stir for 10min, then add 100ml of epichlorohydrin, stir and react for 8h at room temperature, then add 50ml of epoxy Chloropropane was stirred at room temperature for 8h. Add 500 mL of ethanol pre-cooled with ice for precipitation to obtain a precipitate, then wash the precipitate repeatedly with ethanol and acetone, and vacuum dry to collect the crude product.

[0032] Take 50g of the above dried product and dissolve it in 500mL (50g / L) NaOH solution, add 50g of monochloroacetic acid, stir for 8h, neutralize with 2M hydrochloric acid solution, and cool to 4°C. After NaCl was filtered off, 500 ml was added to wash with...

Embodiment 3

[0035] Another magnetic water purifying agent with a nanoparticle structure provided by the present invention is iron ferric oxide nanoparticles wrapped by carboxymethyl guar gum epichlorohydrin polymer, which is prepared sequentially through the following steps:

[0036]Take by weighing the guar gum powder of 50g, add the sherwood oil and acetone mixture (the sherwood oil and acetone mixture volume ratio are 1:1) that measure 150ml, and add 100ml (50g / L) NaOH solution and stir 10min, add 100ml ring subsequently Oxychloropropane, stirred and reacted at room temperature for 8 hours, then added 50ml of epichlorohydrin and stirred and reacted at room temperature for 8 hours. Add 500 mL of ethanol pre-cooled with ice for precipitation to obtain a precipitate, then wash the precipitate repeatedly with ethanol and acetone (volume ratio 1:1), and dry the crude product in vacuo.

[0037] Take 50g of the above dried product and dissolve it in 500mL (50g / L) NaOH solution, add 40g of mon...

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Abstract

The invention discloses a nanoparticle structure magnetic water purifier and a preparation method thereof. The nanoparticle structure magnetic water purifier is high in treatment speed and good in water purification effect. According to the technical scheme, guar gum is modified, carboxyl methyl guar gum epoxy chloropropane polymer is synthesized, ferrous, ferric iron and the polymer are placed into the same reaction system and grafted to the surface of a nanometer ferroferric oxide particle through a coprecipitation method, and the magnetic nano-particle wrapped by the carboxyl methyl guar gum epoxy chloropropane polymer is manufactured, and the water purifier is applicable to the field of industrial wastewater treatment.

Description

technical field [0001] The invention discloses a water purifying agent, specifically, a magnetic water purifying agent with a nanoparticle structure. The invention also discloses a preparation method of the magnetic water purifying agent with a nanoparticle structure, which belongs to the technical field of fine chemicals. Background technique [0002] With the rapid development of industry, the pollution of water resources is becoming more and more serious. Rivers, rivers, and streams in the natural environment are constantly polluted by domestic sewage and wastewater discharged from various industrial productions. There are more and more organic substances, heavy metals and other substances in the water. Polluted water quality causes water degradation and aging, and many diseases of the human body, animals and plants are directly related to water quality degradation and aging. Therefore, coupled with the fact that my country is a country that is extremely short of water re...

Claims

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Application Information

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IPC IPC(8): C02F1/28C08B37/00C02F101/20
CPCC02F1/288C02F2101/20C08B37/0096
Inventor 王文杰饶丹叶涛
Owner 广州小众环保科技有限公司
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