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Preparation method of intelligent gel phenol adsorption separation agent with environmental response performance

An intelligent gel phenol, adsorption and separation technology, applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal oxides/hydroxides, etc., to achieve the effect of enhancing the adsorption area

Inactive Publication Date: 2015-12-23
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few research reports on the application of environment-responsive gels in the separation of organic matter in water

Method used

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  • Preparation method of intelligent gel phenol adsorption separation agent with environmental response performance
  • Preparation method of intelligent gel phenol adsorption separation agent with environmental response performance

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Dissolve 1 g of N-isopropylacrylamide (NIPAm) and 5 g of tributylphosphate (TBP) in 30 mL of anhydrous methanol, add 0.01 g of benzimide peroxide (BPO) and 0.01 g of N,N-methylene Bisacrylamide (Bis), reacted in a constant temperature water bath at 60°C for 24 hours, cooled to room temperature, soaked in anhydrous ethanol solution for three days to remove unreacted monomers, and then placed in 100mL volume ratio: 7 :3, 6:4, 5:5, 4:6, 3:7 mixed solution of ethanol and water, change it once a day, and finally soak it in distilled water for a week. The resulting gel was cut into pieces and dried to constant weight to prepare an intelligent gel phenolic adsorption separation agent with environmental responsiveness, namely PNIPAm / TBP.

Embodiment 2

[0018] Dissolve 1 g of N-isopropylacrylamide (NIPAm) and 5 g of cyclohexane diisocyanate (HDI) in 40 mL of anhydrous methanol solution, add 0.01 g of benzimide peroxide (BPO) and 0.01 g of N,N - Methylenebisacrylamide (Bis), reacted in a constant temperature water bath at 60°C for 24 hours, cooled to room temperature and soaked in anhydrous ethanol solution for three days to remove unreacted monomers, and then placed in 100mL volume ratio respectively For: 7:3, 6:4, 5:5, 4:6, 3:7 mixed solution of ethanol and water, change it once a day, and finally soak it in distilled water for a week. The resulting gel was cut into pieces and dried to constant weight to prepare an intelligent gel phenolic adsorption separation agent with environmental responsiveness, namely PNIPAm / HDI.

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Abstract

The invention discloses a preparation method of an intelligent gel phenol adsorption separation agent with environmental response performance. The method includes the steps that 1 g of temperature-sensitive gel monomers and 2-8 g of adsorbent are dissolved in 20-40 mL of absolute methanol solution, 0.01-0.05 g of crosslinker is added, the mixture is subjected to a reaction for 24 h at 50-80 DEG C under the constant-temperature water bath condition and then cooled to room temperature, the product is soaked in an absolute ethyl alcohol solution for 3 days so as to remove unreacted monomers, the product is sequentially put into 100 mL of mixed solution of ethyl alcohol and water with the volume ratio of 7:3, 100 mL of mixed solution of ethyl alcohol and water with the volume ratio of 6:4, 100 mL of mixed solution of ethyl alcohol and water with the volume ratio of 5:5, 100 mL of mixed solution of ethyl alcohol and water with the volume ratio of 4:6 and 100 mL of mixed solution of ethyl alcohol and water with the volume ratio of 3:7, the mixed solutions are replaced once every day, and finally the product is soaked in distilled water for one week; obtained gel is diced and dried to constant weight, and then the intelligent gel phenol adsorption separation agent with the environmental response performance is obtained. The prepared intelligent gel phenol adsorption separation agent with the environmental response performance has adsorption separation performance for phenols in water and temperature sensitivity of gel and is large in adsorption area, high in mechanical performance and good in processibility.

Description

technical field [0001] The invention relates to a preparation method of an intelligent gel phenolic adsorption and separation agent with environmental response performance. Background technique [0002] At present, the treatment technologies for industrial phenol-containing wastewater mainly include chemical oxidation, incineration, steam, adsorption, biochemical, solvent extraction, and emulsion liquid membrane methods. The phenolic substances are adsorbed, and after the adsorption is saturated, the lye, steam or organic solvent is used for desorption and desorption. Common adsorbents include activated carbon, sulfonated coal, and macroporous resins. Activated carbon has a large adsorption capacity and is difficult to regenerate. The effect of regenerating activated carbon by electricity is acceptable. Although sulfonated coal is easy to regenerate, its small adsorption capacity limits its wide application. Compared with the other two kinds of adsorbents, macroporous res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/54C08F222/38B01J20/26B01J20/28C02F1/28C02F101/34
Inventor 谭海军丘志安肖玉赐黎小凤冉艾灵陈宗满蔡大莹姚强文
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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