Preparation of high temperature resistant strong alkalinity anion exchange resin
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
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[0055] Example 1:
[0056] 1). Suspension polymerization product 1
[0057] The following table (unit: grams)
[0058] Styrene 330 Divinylbenzene (content 55.4%) 70 Benzoyl peroxide 3 Liquid wax 150 gelatin 5 Sodium chloride 10 Pure water 1000
[0059] First add the water phase to a 2000ml reactor, stir for 1 hour, heat up to the reaction temperature, add the oil phase components, heat up to 95°C after shaping, keep for 10 hours, cool down, wash with water, dry, remove wax, and dry to obtain product 1.
[0060] 2). Acylation reaction produces product 2
[0061] Swell 150 grams of product 1 in dichloroethane. After swelling for 2 hours, add sulfuryl chloride (molecular formula: S02Cl2) for acylation reaction. The molar ratio of white ball to sulfuryl chloride is 1:2, and the temperature is raised to 60℃ , Keep for 6h, cool down, wash 3 times with dichloroethane, filter to obtain product 2.
[0062] 3). Amination to produce product 3...
Example Embodiment
[0068] Example 2:
[0069] The other steps are exactly the same as in Example 1, except that the amount of amine added in step 3 is different.
[0070] 3). Amination to produce product 3
[0071] Swell 100 grams of product 2 with dichloroethane, add 10 grams of N,N'-dimethyl-1,6-hexamethylenediamine, and carry out amination reaction at 60°C. After reacting for 40 hours, filter and wash , Dry to obtain product 3.
[0072] Finally, a quaternary ammonium salt type strongly basic anion exchange resin was obtained, sample number A2.
Example Embodiment
[0073] Example 3:
[0074] The other steps are exactly the same as in Example 1, except that the amount of amine added in step 3 is different.
[0075] 3). Amination to produce product 3
[0076] Swell 100 grams of product 2 with dichloroethane, add 20 grams of N,N'-dimethyl-1,6-hexamethylene diamine, and conduct amination reaction at 60°C. After reacting for 40 hours, filter and wash , Dry to obtain product 3.
[0077] Finally, a quaternary ammonium salt type strongly basic anion exchange resin was obtained, sample number A3.
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