Preparation method for biomass anti-lyolysis desiccant
A desiccant and biomass technology, which is applied in the field of preparation of biomass anti-liquid hydrolysis desiccant, can solve the problems of reverse adsorption of moisture, affecting the use time of products, liquid hydrolysis phenomenon, etc., to achieve high regeneration, improve liquid hydrolysis problems, Good hygroscopic effect
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example 1
[0017] Weigh 500g of corn dregs left over from a starch factory, soak them in absolute ethanol at room temperature for 24 hours, then transfer them to a Buchner funnel, wash and filter them with deionized water for 3 times until the filtrate is clear, and put the filter residues in a vacuum dryer to dry. Standby; put the above-mentioned dried filter residue into a 2L beaker, add 1000mL of hydrochloric acid solution with a concentration of 3mol / L, place it on a magnetic stirrer, stir at a speed of 300r / min for 10min, then transfer it to a water bath, and heat up to 40°C. After hydrolysis for 1 hour, suction filter and dry; take 200 g of hydrolyzed corn dregs and pour them into a three-necked flask, add 50 g of monochloroacetic acid and 30 g of sodium hydroxide, mix well, and continue to pour 500 mL of ethanol solution with a mass concentration of 70%. Stir and react at a constant temperature at 60°C for 1 hour to obtain corn dregs derivatives; soak the derivatives obtained above...
example 2
[0020] Weigh 550g of corn dregs left over from a starch factory, soak them in absolute ethanol at room temperature for 30 hours, then transfer them to a Buchner funnel, wash them with deionized water and filter them 4 times until the filtrate is clear, put the filter residues in a vacuum dryer and dry them. Standby; put the above-mentioned dried filter residue into a 2L beaker, add 1100mL of hydrochloric acid solution with a concentration of 3mol / L, place it on a magnetic stirrer, stir at a speed of 350r / min for 15min, then transfer it to a water bath, and heat up to 45°C. After hydrolysis for 1 hour, suction filter and dry; take 250 g of hydrolyzed corn dregs and pour them into a three-necked flask, add 80 g of monochloroacetic acid and 35 g of sodium hydroxide, mix well, and continue to pour 550 mL of ethanol solution with a mass concentration of 70%. Stir and react at a constant temperature of 65°C for 1 hour to obtain a derivative product of corn dregs; soak the derivative ...
example 3
[0023] Weigh 600g of corn dregs left over from a starch factory, soak them in absolute ethanol at room temperature for 36 hours, then transfer them into a Buchner funnel, wash them with deionized water and filter them 5 times until the filtrate is clear, then put the filter residues in a vacuum dryer to dry. Standby; put the above-mentioned dried filter residue into a 2L beaker, add 1200mL of hydrochloric acid solution with a concentration of 3mol / L, place it on a magnetic stirrer, stir at a speed of 400r / min for 20min, then transfer it to a water bath, and heat up to 50°C. After hydrolysis for 2 hours, suction filter and dry; take 300g of hydrolyzed corn dregs and pour them into a three-necked flask, add 100g of monochloroacetic acid and 40g of sodium hydroxide, mix well and continue to pour 600mL of ethanol solution with a mass concentration of 70%. Stir and react at a constant temperature of 70°C for 2 hours to obtain a derivative product of corn dregs; soak the derivative p...
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