A kind of preparation method of porous polyquaternium salt gel adsorbent

A polyquaternary ammonium salt and adsorbent technology, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, can solve the problems of printing and dyeing wastewater adsorption and decolorization, achieve strong adsorption and capture capabilities, and improve reaction efficiency Effect

Inactive Publication Date: 2020-09-22
JIANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of preparation method of novel porous polyquaternium salt gel adsorbent, to overcome the deficiency of existing adsorbent to printing and dyeing wastewater adsorption and decolorization

Method used

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  • A kind of preparation method of porous polyquaternium salt gel adsorbent
  • A kind of preparation method of porous polyquaternium salt gel adsorbent

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Step 1: Take the measured cross-linking quaternary ammonium salt monomer TAMAC and the large molecular volume quaternary ammonium salt monomer CDMAAC [the molar ratio of the two monomers is n (TAMAC) / n (CDMAC) =95 / 5] join in the reactor that reflux condensing device is housed and be made into the reaction solution that initial monomer solution mass fraction is 55%;

[0026] Step 2: Weigh the initiator ammonium persulfate APS accounting for 1% of the total monomer mass (the sum of TAMAC and CDMAC mass), add it to the reaction solution, stir and mix evenly;

[0027] Step 3: First pass through the three-way ventilation system, with inert protective gas N 2 Replace the air in the reaction system, and then add N 2 The introduction tube is inserted into the reaction mixture for bubbling, and under mechanical stirring, the temperature is raised to 50°C for bubbling cross-linking copolymerization reaction for 0.5h, and the reaction material is viscous and flowing;

[0028]...

Embodiment 2

[0033] Step 1: Take the measured cross-linking quaternary ammonium salt monomer TAMAC and the large molecular volume quaternary ammonium salt monomer CDMAAC [the molar ratio of the two monomers is n (TAMAC) / n (CDMAC) =50 / 50] join in the reactor that reflux condensing device is housed and be made into the reaction solution that initial monomer solution mass fraction is 60%;

[0034] Step: 2: take by weighing the initiator ammonium persulfate APS accounting for 2% of the total monomer mass (TAMAC and CDMAC mass sum), join in the reaction solution, stir and mix;

[0035] Step 3: First pass through the three-way ventilation system, with inert protective gas N 2 Replace the air in the reaction system, and then add N 2 The introduction tube is inserted into the reaction mixture for bubbling, and under mechanical stirring, the temperature is raised to 50-55°C for bubbling cross-linking copolymerization reaction for 1.0h, and the reaction material is viscous and flowing;

[0036] ...

Embodiment 3

[0041] Step 1: Take the measured cross-linking quaternary ammonium salt monomer TAMAC and the large molecular volume quaternary ammonium salt monomer CDMAC [the molar ratio of the two monomers is n(TAMAC) / n(CDMAC)=5 / 95] and join in In the reactor equipped with reflux condensing device and be made into the reaction solution that initial monomer solution mass fraction is 65%;

[0042] Step 2: Weigh the initiator ammonium persulfate APS accounting for 1-3% of the total monomer mass (the sum of TAMAC and CDMAC mass), add it to the reaction solution, stir and mix evenly;

[0043] Step 3: First pass through the three-way ventilation system, with inert protective gas N 2 Replace the air in the reaction system, and then add N 2 The introduction tube is inserted into the reaction mixture for bubbling, and under mechanical stirring, the temperature is raised to 55°C for bubbling cross-linking copolymerization reaction for 1.0h, and the reaction material is viscous and flowing;

[0044...

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Abstract

The preparation method of a porous polycation gel adsorbent of the present invention comprises the use of cross-linking quaternary ammonium salt monomer triallyl methyl ammonium chloride (TAMAC) and large molecular volume quaternary ammonium salt monomer hexadecane Dimethallyl ammonium chloride (CDMAC) was used as raw material, and the porous polyquaternium gel adsorbent was prepared through the reaction processes of cross-linking copolymerization, acidification strengthening, and evaporation aging. Composed of polyquaternium cationic units, it has more "electrostatic attraction points" and can produce stronger dye "adsorption and capture" capabilities; at the same time, the porous internal structure has the ability to intercept and adsorb dyes in water; in addition, as a gel material, in After swelling in water, more space can be provided to absorb and accommodate anionic dyes, so that the adsorption and purification performance of the porous polycation gel adsorbent for printing and dyeing wastewater is significantly better than that of the existing similar adsorbents, and the application performance is stable and the application prospect is good.

Description

technical field [0001] The invention relates to a preparation method of a porous polyquaternium salt gel adsorbent, and specifically belongs to the technical field of adsorbents for wastewater treatment. Background technique [0002] The textile industry is a traditional pillar industry of my country's national economy and an important livelihood industry, as well as an industry with obvious international competitive advantages. In order to meet people's needs for different colors of textile fabrics, it is necessary to dye them; but when dyeing, especially when dyeing deep and thick colors, due to the insufficient dyeing rate, some dyes cannot be fixed on the fabric, resulting in raw materials waste, which in turn leads to the generation of a large amount of colored wastewater. First of all, printing and dyeing wastewater has a large amount of pollution, and the pollution to the environment is very serious. Its chroma COD value is generally 8000-40000mg / kg, and the COD valu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28C02F1/28B01J20/30C08F226/02C02F101/30C02F103/30
CPCB01J20/264B01J20/28047C02F1/285C02F2101/308C02F2103/30C08F226/02
Inventor 余义开李红艳白钰
Owner JIANGXI NORMAL UNIV
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