Preparation method of ultralarge-particle macroporous strong-acid styrene-series cation exchange resin
A strong acid styrene, cation exchange technology, applied in the direction of cation exchange materials, can solve the problem of waste of raw materials, etc., to achieve the effect of good adsorption effect
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Embodiment 1
[0026] (1) Preparation of water phase: Stir 360g of demineralized water and heat up to 60°C, add 1.4g of gelatin to dissolve, then add 0.7g of sodium carbonate, 4.2g of magnesium sulfate and 0.3g of lignin in sequence, after fully dissolving, heat up to 78°C, spare;
[0027] (2) Prepare the organic phase: weigh 158g of styrene in a beaker, then add 57g of solid paraffin, heat up to 60°C and stir for 30min, after dissolving, add 32g of divinylbenzene, and add 2g of initiator, stir for 5min to obtain the organic phase ;
[0028] (3) Polymerization operation: Add the organic phase prepared in step (2) to the aqueous phase prepared in step (1) to obtain a mixed solution, wherein the mass ratio of the organic phase to the aqueous phase is 0.65:1; the mixed solution is heated to 75 ℃, maintain the reaction for 1h, then raise the temperature to 95°C, keep the temperature for 4h, stop the reaction, rinse with water for several times, get the white ball after polymerization, add tolue...
Embodiment 2
[0032] (1) Preparation of water phase: Stir 370g of demineralized water and heat up to 60°C, add 1.6g of gelatin to dissolve, then add 0.8g of sodium carbonate, 4.3g of magnesium sulfate, and 0.5g of lignin to fully dissolve, heat up to 80°C, and set aside;
[0033] (2) Preparation of organic phase: Weigh 162g of styrene in a beaker, then add 61g of solid paraffin, heat up to 60°C and stir for 30min, after dissolving, add 36g of divinylbenzene, and add 2g of initiator, stir for 8min to obtain the organic phase ;
[0034] (3) Polymerization operation: Add the organic phase prepared in step (2) to the aqueous phase prepared in step (1) to obtain a mixed solution, wherein the mass ratio of the organic phase to the aqueous phase is 0.69:1; the mixed solution is heated to 78 ℃, maintain the reaction for 1h, then raise the temperature to 95°C, keep the temperature for 4h, stop the reaction, rinse with water for several times, get the white ball after polymerization, add toluene as e...
Embodiment 3
[0038] (1) Preparation of water phase: Add 380g of demineralized water into a wide-mouth glass bottle, start stirring and heat up to 60°C, add 1.8g of gelatin to dissolve, then add 0.9g of sodium carbonate, 4.4g of magnesium sulfate, and 0.7g of lignin to fully dissolve , heat up to 78°C to 80°C, and set aside;
[0039] (2) Preparation of the organic phase: Weigh 166g of styrene in a beaker, then add 65g of solid paraffin, heat up to 60°C and stir for 30min, after dissolving, add 40g of divinylbenzene and 3g of initiator, stir for 5-10min to obtain Organic phase, standby;
[0040](3) Polymerization operation: Add the organic phase prepared in step (2) to the water phase prepared in step (1) to obtain a mixed solution, wherein the mass ratio of the organic phase to the aqueous phase is 0.7:1; the mixed solution is heated to 75 ~80°C, maintain the reaction for 1 hour, then raise the temperature to 95°C, keep the temperature for 4 hours, stop the reaction, rinse with water for s...
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