this process includes esterification, neutralization and sieving.
Preparation of Glycerol Monosulfate 135kg of glycerol and a proper amount of water were put into a reaction kettle and cooled to 5°C. Under stirring, fuming sulfuric acid (SO3 content 20%)6 L was slowly added dropwise, and the temperature was kept at 20 ℃ for 2h, and the reaction was completed.
Preparation, neutralization and sieving of stearate 500kg of stearic acid is added in another kettle, heated to melt, fuming sulfuric acid (SO3 content 20%)30L is added under stirring, heated to about 70 ℃ after stirring, glycerol monosulfate is added in batches, and reacted at 70~75 ℃ for 4 hours after adding. Then speed up the stirring speed and add appropriate amount of water to emulsify it evenly. Drop 15% liquid alkali at 30 ℃ to neutralize to about pH 7. Heat preservation and stirring for 20min, if the pH value is still 7, the reaction is over. The finished product is screened through 120 mesh.