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A fatty acid modified adsorption resin, its preparation method and its method for treating anionic surfactant wastewater

A fatty acid modification, adsorption resin technology, applied in the direction of adsorption water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of restricted application, insufficient adsorption capacity, high consumption of desorption liquid, etc. Desorption cost, improvement of desorption efficiency, and effect of reducing pollution

Active Publication Date: 2022-04-22
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of adsorption resins to treat wastewater containing anionic surfactants still has the problems of insufficient adsorption capacity and high consumption of desorption solution.
The above problems have restricted the application of the adsorption resin method in the treatment of washing, bleaching and dyeing wastewater containing anionic surfactants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] At room temperature, a premixed water phase was added, and the composition was 572.2 g of deionized water, 30.2 g of sodium chloride, 0.6 g of polyvinyl alcohol, and 0.6 mg of methylene blue. Add the premixed oil phase, and the composition is 30g of divinylbenzene, 25g of methyl methacrylate, 45g of oleic acid, 50g of toluene, 50g of 3# white oil, 0.5g of AIBN, and 0.5g of BPO. Start stirring, raise the temperature to 85° C., keep the temperature constant for 6 hours, wash with water, extract the porogen, and wash with water to obtain fatty acid-modified porous white balls.

[0049] Take 50.0 g of the fatty acid modified porous white balls and place them in 150 mL of calcium chloride solution (concentration: 1 mol / L), stir and soak at 60° C. for 4 hours, wash with water, and filter to obtain fatty acid modified adsorption resin. The calcium ion distribution density in the fatty acid modified adsorption resin is 10mmol / g, the particle size is 400-1200μm, and the specific...

Embodiment 2

[0055] At room temperature, add the premixed water phase, and the composition is 1507 g of deionized water, 3 g of gelatin, and 15 mg of methylene blue. Add the premixed oil phase, and the composition is 25g of trivinylbenzene, 15g of allyl itaconate, 60g of linoleic acid, 50g of xylene, 150g of 200# mineral spirits, 1g of ABVN, and 1g of TBCP. Start stirring, raise the temperature to 65°C, keep the temperature constant for 12 hours, wash with water, extract the porogen, and wash with water to obtain fatty acid-modified porous white balls.

[0056] Take 50.0 g of the fatty acid-modified porous white balls and place them in 250 mL of magnesium chloride solution (concentration: 5 mol / L), stir and soak at 80° C. for 2 h, wash with water, and filter to obtain the fatty acid-modified adsorption resin. The distribution density of magnesium ions in the fatty acid modified adsorption resin is 15mmol / g, the particle size is 300-1000μm, and the specific surface area is 200m 2 / g, the a...

Embodiment 3

[0060] At room temperature, the premixed water phase was added, and the composition was 270.7 g of deionized water, 30.1 g of sodium chloride, and 0.2 g of hydroxypropyl methylcellulose. Add the pre-mixed oil phase, the composition is 20g divinylbenzene, 25g trivinylbenzene, 10g methyl acrylate, 25g methyl methacrylate, 10g linolenic acid, 10g arachidonic acid, 10g ethylbenzene, cyclohexanol 20g, isooctyl alcohol 20g, LPO 0.5g. Start stirring, raise the temperature to 95° C., keep the temperature constant for 4 hours, wash with water, extract the porogen, and wash with water to obtain fatty acid-modified porous white balls.

[0061] Take the above 50.0g fatty acid modified porous white balls and place them in 150mL aluminum chloride and ferric chloride mixed solution (the concentration of aluminum chloride is 0.05mol / L, the concentration of ferric chloride is 0.05mol / L), stir and soak at 40°C for 6h, wash with water and filtering to obtain the fatty acid modified adsorption r...

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Abstract

The invention discloses a fatty acid modified adsorption resin and a preparation method thereof, comprising the following steps: 1) suspending and copolymerizing aromatic polyvinyl monomers, acrylate monomers and unsaturated fatty acid monomers to obtain fatty acid modified porous white balls ; 2) In step 1), the fatty acid-modified porous white ball is immersed in a cation exchange solution to obtain a fatty acid-modified adsorption resin. The resin of the invention is particularly suitable for the adsorption and recovery of wastewater containing anionic surfactants, and the treated wastewater is discharged up to the standard, providing a feasible solution for the treatment of civil, industrial washing, and bleaching and dyeing wastewater.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, specifically relates to a fatty acid modified adsorption resin and a preparation method thereof, and also relates to a method for using the resin to treat waste water, especially washing waste water containing anionic surfactants. Background technique [0002] Anionic surfactants are the products with the largest output and the most varieties among surfactants. Among them, the straight-chain sulfonic acid / sodium sulfate represented by sodium dodecylbenzenesulfonate and sodium dodecylsulfate is one of the most widely used washing and dyeing reagents in civil and industrial fields. Good sex, stable performance, low price and other advantages, its output accounts for more than 90% of the total output of synthetic detergents. At the same time, the above-mentioned substances are also an important harmful component in washing, bleaching and dyeing wastewater, and the direct discharge of a lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30B01J20/32C02F1/28C02F101/30
CPCB01J20/265B01J20/28019B01J20/28061B01J20/28064B01J20/28083B01J20/28073B01J20/28076B01J20/3085B01J20/3236C02F1/288C02F2101/301
Inventor 欧洋牛艳丽赵伟国孙家宽
Owner WANHUA CHEM GRP CO LTD
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