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Preparation of high temperature resistant strong alkalinity anion exchange resin
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A technology of exchange resin and strong alkali, applied in the field of preparation technology of ion exchange resin, can solve the problems of limiting the application range of strong alkali anion exchange resin, and achieve the effect of improving durability and high chemical stability
Active Publication Date: 2009-07-15
KAIRUI ENVIRONMENTAL PROTECTION TECH
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[0002] Strong base anion exchange resins can be used in water treatment, substance purification, concentration, separation, transformation of ionic composition of substances, decolorization of substances and catalysts, etc., but the use temperature of strong base anion exchange resins, especially hydroxyl resins, is limited to 60°C Below, this limits the scope of application of strong base anion exchange resins
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[0059] First add the water phase to a 2000ml reaction kettle, stir for 1 hour, raise the temperature to the reaction temperature, add the components of the oil phase, heat up to 95°C after setting, keep it warm for 10 hours, lower the temperature, wash with water, dry, extract wax, and dry to obtain product 1.
[0061] Swell 150 grams of product 1 in dichloroethane. After swelling for 2 hours, add sulfurylchloride (molecular formula: S02Cl2) for acylation reaction. The molar ratio of white balls to sulfuryl chloride is 1:2, and the temperature is raised to 60°C , keep warm for 6h, cool down, wash with dichloroethane repeatedly for 3 times,...
Embodiment 2
[0069] Other steps are exactly the same as embodiment 1, only the amount of amine added in step 3 is different,
[0071] Swell 100 grams of product 2 with ethylene dichloride, add 10 grams of N,N'-dimethyl-1,6-hexanediamine, carry out amination reaction at 60°C, react for 40 hours, filter and wash , and dried to obtain the product 3.
[0076] Swell 100 grams of product 2 with ethylene dichloride, add 20 grams of N,N'-dimethyl-1,6-hexanediamine, carry out amination reaction at 60°C, react for 40 hours, filter and wash , and dried to obtain the product 3.
[0077] Finally, a quaternary ammonium salt type strongly basic anion exchange resin, sample number A3 was obtained.
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technical field [0001] The invention relates to a preparation process of an ion exchange resin, in particular to a preparation process of a high temperature resistant strong alkali anion exchange resin. technical background [0002] Strong base anion exchange resins can be used in water treatment, substance purification, concentration, separation, transformation of ionic composition of substances, decolorization of substances and catalysts, etc., but the use temperature of strong base anion exchange resins, especially hydroxyl resins, is limited to 60°C Below, this limits the scope of application of strong base anion exchange resins. [0003] There have been some announcements on the technology of developing high-temperature resistant strong basic anion exchange resins at home and abroad. In 1979, Soviet patent SU 675056 declared that 2% 2-mercaptobenzimidazole (antiaging agent B) was introduced into chloromethyl polystyrene resin. ), and then react with trimethylamine to p...
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