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A kind of superabsorbent resin and preparation method thereof

A super absorbent resin, adsorption process technology, applied in chemical instruments and methods, adsorption water/sewage treatment, water pollutants, etc., can solve problems such as waste of resources, achieve good adsorption, remove or reduce residues, and reduce water pollution. Effect

Active Publication Date: 2017-02-22
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the branch chaff powder is directly discarded or burned, resulting in a great waste of resources

Method used

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  • A kind of superabsorbent resin and preparation method thereof
  • A kind of superabsorbent resin and preparation method thereof
  • A kind of superabsorbent resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1 Preparation of superabsorbent resin of the present invention

[0040] Seabuckthorn branches were washed and dried at 105°C for 12 hours. After the dried seabuckthorn branches are crushed, pass through a 110-mesh sieve, add 2% sodium hydroxide solution at a mass ratio of 1:12, put the mixture in a water bath at 100°C, centrifuge after 2 hours, and pour off the supernatant , wash the filtrate three times repeatedly with absolute ethanol, and finally dry the filtrate at 105°C for later use.

[0041] Weigh 9g of acrylic acid into a three-necked flask, and use N a OH aqueous solution (6M) for neutralization, then 3g of acrylamide, 0.12g of ammonium persulfate, 0.03g of N,N-methylenebisacryloyl, 2.4g of pretreated seabuckthorn branches and 5.0mL of distilled water were sequentially added to the above in solution. Finally, put the flask equipped with an electric stirrer, a thermometer and a nitrogen gas introduction tube into a water bath, and slowly heat to 70°C ...

Embodiment 2

[0042] Example 2 Preparation of super absorbent resin of the present invention

[0043] Seabuckthorn branches were washed and dried at 105°C for 12 hours. After the dried seabuckthorn branches are crushed, pass through a 110-mesh sieve, add 10% sodium hydroxide solution at a mass ratio of 1:10, put the mixture in a water bath at 100°C, centrifuge after 2 hours, and pour off the supernatant , wash the filtrate three times repeatedly with absolute ethanol, and finally dry the filtrate at 105°C for later use.

[0044] Weigh 9g of acrylic acid into a three-necked flask, and use N a OH aqueous solution (6M) for neutralization, then 3g of acrylamide, 0.12g of ammonium persulfate, 0.03g of N,N-methylenebisacryloyl, 2.4g of pretreated seabuckthorn branches and 5.0mL of distilled water were sequentially added to the above in solution. Finally, put the flask equipped with an electric stirrer, a thermometer and a nitrogen gas introduction tube into a water bath, and slowly heat to 70°...

Embodiment 3

[0045] Example 3 Investigation of the superabsorbent resin of the present invention

[0046] ■1 Experimental part

[0047] ■1.1 Experimental Instruments

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Abstract

The invention provides super absorbent resin which is prepared from 2-3 parts of sea-buckthorn branches, 10-15 parts of a grafting monomer, 0.10-0.15 part of an initiator and 0.01-0.05 part of a cross-linking agent. The invention further provides a preparation method of the super absorbent resin. The prepared sea-buckthorn branch-based super absorbent resin is capable of adsorbing methylene blue with good effect and effectively removing or reducing residue of methylene blue in dye wastewater; therefore, with application of the sea-buckthorn branch-based super absorbent resin, water pollution is possibly reduced.

Description

technical field [0001] The invention relates to a superabsorbent resin and a preparation method thereof. Background technique [0002] Dyes are mainly divided into two categories: natural dyes and synthetic dyes. Dye wastewater pollution is mainly caused by synthetic dyes, because of their complex structure, biodegradability, and certain toxicity [1] , Large discharge and other characteristics have brought certain difficulties to the treatment of dye wastewater. Methylene blue is an important synthetic dye, widely used in the dyeing of hemp, silk fabrics, paper and the coloring of bamboo and wood. In the process of production and use, the residual methylene blue not only pollutes the water environment, but also causes certain harm to human health [2] . [0003] In recent years, in order to treat industrial wastewater, people have studied some wastewater treatment methods, such as solvent extraction [3] , Electrochemical reduction method [4] , Biosorption [5] , Dialysi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/02C08F220/06C08F220/56C08F222/38B01J20/26B01J20/30C02F1/28C02F101/38
Inventor 白波张学文索有瑞王洪伦丁晨旭
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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