A kind of highly stable hydrogen bond-containing hydrophilic macroporous adsorption resin and method for treating hydrogen peroxide tail gas waste gas

Abstract

The invention discloses a high-stability hydrogen-bond-containing hydrophilic macroporous adsorption resin and a method for treating hydrogen peroxide exhaust gas. The high-stability hydrogen-bond-containing hydrophilic macroporous adsorption resin is prepared by subjecting a styrene / divinyl benzene / methyl acrylate macroporous resin sphere synthesized by using a suspension polymerization method and having a cross-linking degree of 6% to 10% to chloromethylation so as to obtain a chlorine sphere and then subjecting the chlorine sphere and a phenol compound to a Friedel-Crafts crosslinking reaction. The resin is used for treating hydrogen peroxide exhaust gas and recovering xylene in the hydrogen peroxide exhaust gas, has remarkable recovery effect, greatly reduces the content of xylene in the exhaust gas, allows the content of xylene to meet national VOC emission standards in China, enhances the utilization rate of the exhaust gas and reduces pollution discharge.

Description

technical field

[0001] The invention belongs to the technical field of polymer separation materials, and specifically relates to a macroporous adsorption resin with hydrophilicity, high stability and high compressive strength, and the use of the macroporous adsorption resin to treat hydrogen peroxide tail gas and waste gas Methods. Background technique

[0002] Macroporous adsorption resin is a polymer separation material developed in the 1960s and 1970s. As a synthetic material, compared with traditional materials such as activated carbon, it has the characteristics of large adsorption capacity, easy analysis, high strength and long service life. . For decades, great achievements have been made in the research of adsorbent resins. The application of adsorbent resin has gradually expanded to more fields. In the study of adsorption resins, how to improve the selectivity of adsorption has always been the goal that people have been pursuing relentlessly. It has been prelimi...

Examples

Embodiment 1

[0032] 1. Synthesis of styrene / divinylbenzene / methyl acrylate macroporous resin balls

[0033] Dissolve 4g of magnesium sulfate, 5g of gelatin, and 0.2g of methylene blue in distilled water to prepare 1000mL of water phase.

[0034] Add 258g of styrene, 30g of divinylbenzene, and 12g of methyl acrylate into a mixture of 150g of gasoline and liquid wax with a volume ratio of 2:5, and mix well as the oil phase.

[0035] Add 1000mL water phase into 2000mL reactor, heat to 55°C, then add 550mL oil phase, stir to disperse the oil phase into the water phase, control the particle size to 0.3-1.0, raise the temperature to 75°C, react for 3h, continue to heat up to 90°C, reacted for 3h, raised the temperature to 95°C again for 5h, stopped the reaction, and cooled. After the cooled resin balls are discharged, they are washed with hot water above 90°C, extracted with 5 times the volume of resin in methylal, washed, boiled, and dried at 80-90°C for more than 10 hours to obtain benzene wi...

Embodiment 2

[0041] In step 2 of this example, 100 g of styrene / divinylbenzene / methyl acrylate macroporous resin balls with a crosslinking degree of 6% and 500 g of methyl chloride ether were added to the reaction kettle, and swelled at room temperature for 2 hours. After the swelling was completed, Add 50g of zinc chloride, raise the temperature to 45°C, keep it warm for 2 hours, then add 40g of zinc chloride, and continue the reaction for 12 hours; after the reaction, recover the chloromethyl ether mother liquor, wash with chlorine balls, and dry. The chlorine content in the obtained chlorine spheres was 19%. The other steps were the same as in Example 1 to obtain a hydrophilic macroporous adsorption resin containing hydrogen bonds.

Embodiment 3

[0043] In step 1 of this example, 255 g of styrene, 30 g of divinylbenzene, and 15 g of methyl acrylate were added to a mixture of 150 g of gasoline and liquid wax at a volume ratio of 2:5, and mixed well as the oil phase. The other steps were the same as in Example 1 to obtain a hydrophilic macroporous adsorption resin containing hydrogen bonds.

technical field

[0001] The invention belongs to the technical field of polymer separation materials, and specifically relates to a macroporous adsorption resin with hydrophilicity, high stability and high compressive strength, and the use of the macroporous adsorption resin to treat hydrogen peroxide tail gas and waste gas Methods. Background technique

[0002] Macroporous adsorption resin is a polymer separation material developed in the 1960s and 1970s. As a synthetic material, compared with traditional materials such as activated carbon, it has the characteristics of large adsorption capacity, easy analysis, high strength and long service life. . For decades, great achievements have been made in the research of adsorbent resins. The application of adsorbent resin has gradually expanded to more fields. In the study of adsorption resins, how to improve the selectivity of adsorption has always been the goal that people have been pursuing relentlessly. It has been prelimi...

Examples

Embodiment 1

[0032] 1. Synthesis of styrene / divinylbenzene / methyl acrylate macroporous resin balls

[0033] Dissolve 4g of magnesium sulfate, 5g of gelatin, and 0.2g of methylene blue in distilled water to prepare 1000mL of water phase.

[0034] Add 258g of styrene, 30g of divinylbenzene, and 12g of methyl acrylate into a mixture of 150g of gasoline and liquid wax with a volume ratio of 2:5, and mix well as the oil phase.

[0035] Add 1000mL water phase into 2000mL reactor, heat to 55°C, then add 550mL oil phase, stir to disperse the oil phase into the water phase, control the particle size to 0.3-1.0, raise the temperature to 75°C, react for 3h, continue to heat up to 90°C, reacted for 3h, raised the temperature to 95°C again for 5h, stopped the reaction, and cooled. After the cooled resin balls are discharged, they are washed with hot water above 90°C, extracted with 5 times the volume of resin in methylal, washed, boiled, and dried at 80-90°C for more than 10 hours to obtain benzene wi...

Embodiment 2

[0041] In step 2 of this example, 100 g of styrene / divinylbenzene / methyl acrylate macroporous resin balls with a crosslinking degree of 6% and 500 g of methyl chloride ether were added to the reaction kettle, and swelled at room temperature for 2 hours. After the swelling was completed, Add 50g of zinc chloride, raise the temperature to 45°C, keep it warm for 2 hours, then add 40g of zinc chloride, and continue the reaction for 12 hours; after the reaction, recover the chloromethyl ether mother liquor, wash with chlorine balls, and dry. The chlorine content in the obtained chlorine spheres was 19%. The other steps were the same as in Example 1 to obtain a hydrophilic macroporous adsorption resin containing hydrogen bonds.

Embodiment 3

[0043] In step 1 of this example, 255 g of styrene, 30 g of divinylbenzene, and 15 g of methyl acrylate were added to a mixture of 150 g of gasoline and liquid wax at a volume ratio of 2:5, and mixed well as the oil phase. The other steps were the same as in Example 1 to obtain a hydrophilic macroporous adsorption resin containing hydrogen bonds.

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