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Granular adsorbent used for adsorbing nitrobenzene and preparing method thereof

A particle adsorbent, nitrobenzene technology, applied in chemical instruments and methods, adsorbed water/sewage treatment, other chemical processes, etc., can solve problems such as lack of adsorbent materials, and achieve fast adsorption speed, strong adsorption capacity, and adsorption capacity. high effect

Inactive Publication Date: 2017-02-01
北京益净环保设备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a lack of adsorbent materials for the treatment of organic industrial wastewater containing nitrobenzene

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Mix 164.23 grams of 4-hydroxybutyraldehyde and 356.81 grams of 4-acetamido-3-nitrobenzoic acid evenly, place them in a 250 mL reagent bottle with a stopper, add 500 mL of N,N-dimethyl Formamide was stirred for 5 minutes at 1000r / min to obtain mixed solution A;

[0027] (1) Add 14.26g of polypropylene and 18.23g of dibenzothiazole disulfide to the mixed solution A, and stir for 5 minutes at 1000r / min to obtain the mixed solution B;

[0028] (2) Put 12.61g of polyacrylonitrile into a 250mL narrow-mouth reagent bottle with stopper, add 250ml of N,N-dimethylformamide, stir for 1h at 1000r / min, shake well and divide into 5 equal parts , to obtain mixed solution C1, mixed solution C2, mixed solution C3, mixed solution C4, mixed solution C5;

[0029] (3) 10 mL of Na with a concentration of 0.95 mol / L 2 HPO 4 The solution was added to the mixed solution C1, and stirred at 1000r / min for 5 minutes to obtain the mixed solution D1;

[0030] (4) Mix 5mL of mixed liquid D1 an...

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PUM

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Abstract

The invention discloses a granular adsorbent used for adsorbing nitrobenzene and a preparing method thereof. The preparing method comprises the steps of preparing mixed liquor B from 4-hydroxybutanal, 4-acetyl amino group 3-nitrobenzoic acid, N,N-Dimethylformamide, polypropylene, and dibenzothiazyl disulfide; preparing mixed liquor D from polyacrylonitrile, N,N-Dimethylformamide, Disodium hydrogen phosphate and magnesium nitrate; preparing mixed liquor F from acetonyl acetate, chloroform and ferric chloride; preparing mixed liquor H from the mixed liquor B, the mixed liquor D, the mixed liquor F, Methyl isobutyrate, polyethylene glycol, and chloroform; obtaining mixed liquor I by dropwise adding the mixed liquor H into the polyvinyl alcohol solution with the mass fraction of 6.9%; adding the polyvinyl alcohol solution with the mass fraction of 0.8% into the mixed liquor I, after stirring the mixture for 7-8 hours, carrying out separation, washing, and freeze drying, and finally obtaining the granular adsorbent used for adsorbing nitrobenzene.

Description

technical field [0001] The invention belongs to the technical field of organic industrial wastewater treatment, in particular to a particle adsorbent for adsorbing nitrobenzene and a preparation method thereof. Background technique [0002] The adsorption method is to mix the adsorbent with the wastewater to be treated, one or several pollutants in the wastewater are adsorbed, and some pollutants can be recovered or removed, so that the wastewater can be purified. This method is suitable for high-concentration organic wastewater. It has a good treatment effect and plays an important role in the organic industrial wastewater treatment technology. The general characteristics of the adsorbent with excellent performance in the adsorption method: good pore structure, excellent surface chemical properties; strong adsorption capacity for adsorbate; easy analysis, strong reusability; good mechanical strength, etc. At present, the most commonly used adsorption materials for adsorbin...

Claims

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Application Information

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IPC IPC(8): B01J20/26C02F1/28B01J20/30C02F101/38
CPCB01J20/04B01J20/048B01J20/06B01J20/22B01J20/261C02F1/288C02F2101/38
Inventor 不公告发明人
Owner 北京益净环保设备科技有限公司
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