Preparation method of methacryloxyethyltrimethyl ammonium chloride based anionic dye absorbent

A technology of methacryloyloxyethyltrimethylammonium chloride and anionic dyes, applied in chemical instruments and methods, adsorption water/sewage treatment, water pollutants, etc., can solve the problem of poor adsorption capacity, many raw materials, and water quality Secondary pollution and other issues

Active Publication Date: 2015-03-25
甘肃融万科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this modification method involves many raw materials, complicated process, and the adsorbent does not form a single whole, which is easy to bring secondary pollution to water quality, and the adsorption capacity is poor, so it cannot be applied well.

Method used

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  • Preparation method of methacryloxyethyltrimethyl ammonium chloride based anionic dye absorbent
  • Preparation method of methacryloxyethyltrimethyl ammonium chloride based anionic dye absorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Acidizing treatment of palygorskite clay: add a certain amount of palygorskite clay ore into a 1000 mL beaker, add water to 600 mL, and mechanically stir (1000 rpm) for 8 h. The obtained suspension was diluted with water, and after standing for a period of time, the supernatant liquid and the bottom sand layer were poured out, the middle layer mud suspension was washed three times, dried, pulverized, acidified with 1 M hydrochloric acid and washed with water until neutral, dried and pulverized , passed through a 200-mesh sieve to obtain acidified palygorskite clay (PGS).

[0026] 2. Preparation of composite adsorbent: 7.5 g of acrylic acid amine (AM) and 5 ml of deionized water were added to a three-necked flask, and after mechanical stirring for 10 min at room temperature, 0.75 g of PGS was added, and rapid stirring was performed ultrasonically for 30 min; Slowly add 7.5 g of methacryloyloxyethyltrimethylammonium chloride (DMC) dropwise to the system, and add 0.167 ...

Embodiment 2

[0029] 1. Same as Example 1.

[0030] 2. Preparation of composite adsorbent: 7.5 g of acrylic acid amine (AM) and 3 ml of deionized water were added to a three-necked flask, and after mechanical stirring for 10 min at room temperature, 0.3 g of PGS was added, and sonicated for 30 min with rapid stirring; Slowly add 7.5 g of methacryloyloxyethyltrimethylammonium chloride (DMC) dropwise to the system, and add 0.125 g of cross-linking agent N,N'-methylenebisacrylamide (MBA), continue to stir for 30 min, add 0.075 g of initiator ammonium persulfate, heat up to 75 °C, slowly stir until the polymer is formed, stop stirring, and continue the reaction for 2 h. The product is cut into pieces, washed three times with absolute ethanol (to neutrality), and dried at 75 °C to constant weight. The product is crushed, ground, passed through a 90-160 mesh sieve, and dried.

[0031] 3. Adsorption performance for anions: After testing, the adsorption capacity of the adsorbent for methyl orange ...

Embodiment 3

[0033] 1. Same as Example 1.

[0034]2. Preparation of composite adsorbent: 7.5 g of acrylic acid amine (AM) and 5 ml of deionized water were added to a three-necked flask, and after mechanical stirring for 10 min at room temperature, 2.25 g of PGS was added, and sonication was rapidly stirred for 30 min; Slowly add 22.5 g of methacryloyloxyethyltrimethylammonium chloride (DMC) dropwise to the system, and add 0.5 g of cross-linking agent N,N'-methylenebisacrylamide (MBA), continue to stir for 30 min, add 0.28125 g initiator ammonium persulfate, heat up to 75 °C, slowly stir until the polymer is formed, stop stirring, and continue the reaction for 2 h. The product is cut into pieces, washed three times with absolute ethanol (to neutrality), and dried at 75 °C to constant weight. The product is crushed, ground, passed through a 90-160 mesh sieve, and dried.

[0035] 3. Adsorption performance for anions: After testing, the adsorption capacity of the adsorbent for methyl orange i...

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Abstract

The invention provides a preparation method of a methacryloxyethyltrimethyl ammonium chloride based anionic dye absorbent, and belongs to the technical field of a composite. Acrylamide and methacryloxyethyltrimethyl ammonium chloride are taken as polymerization monomers, palygorskite clay is taken as inorganic filler, and the methacryloxyethyltrimethyl ammonium chloride based anionic dye absorbent is prepared through free radical polymerization under the existence of a crosslinking agent and an initiator. According to the preparation method, formation of a polymer and a spatial network structure of the polymer are adjusted through a special structure on the surface of the palygorskite clay, so that gaps among molecules are effectively enlarged, and the absorption property is improved. An experiment proves that the prepared absorbent has a good absorption property on anionic dye.

Description

[0001] The invention belongs to the technical field of sewage treatment, and relates to an anionic dye adsorbent, in particular to a preparation method of a methacryloyloxyethyltrimethylammonium chloride-based anionic dye adsorbent. Background technique [0002] Anionic dye wastewater is a kind of industrial wastewater that is very common and difficult to treat at present. Due to its high chroma, high toxicity, and difficulty in biodegradation and decolorization, the treatment of dye wastewater has always been a difficulty and hot spot in water treatment. . The main methods of dye wastewater treatment include membrane filtration method, precipitation method, coagulation method, electrochemical method, ion exchange method, chemical oxidation method, adsorption method, among which the adsorption method is exceptional in all these methods due to its good water quality and stability after treatment received attention. [0003] Composite adsorbent is a kind of adsorbent with econo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F103/30
CPCB01J20/12B01J20/262C02F1/281C02F1/285C02F1/286C02F2101/308C02F2103/30
Inventor 赵睿雷蕾张哲王小亮杨彩霞蔡文婧周鹏鑫雷自强
Owner 甘肃融万科技有限公司
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