Liquid grinding aid capable of promoting coagulating, and preparation method thereof
A grinding aid and liquid technology, which is applied in the field of coagulation-accelerating liquid grinding aid and its preparation, can solve the problems of restricting the popularization and application of cement grinding aid, unstable quality of grinding aid, fluctuation of cement quality, etc., and achieve adaptability Good performance, reasonable proportion, change the effect of hardness and strength
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Embodiment 1
[0025] A coagulation-promoting liquid grinding aid, which is made of the following components and mass fractions of raw materials: 5% aluminum sulfate, 5% magnesium sulfate, 40% modified alcohol amine organic small molecules, 3% sodium lignosulfonate %, calcium formate 1.5%, the rest is deionized water;
[0026] The modified small organic molecules of alcohol amines are prepared by the following method: the polyamines and the small organic molecules of epoxy are placed in a reaction vessel, the temperature is raised to 30° C., and after reacting for 1 hour under the action of a catalyst, the obtained Then add an organic acid to the solution and react for 0.5h to obtain a modified alcohol amine organic small molecule; the molar ratio of the polyamine, epoxy organic small molecule, catalyst and organic acid is: 1:2:0.001:2 .
[0027] The polyamines are ethylenediamine.
[0028] The epoxy organic small molecule is ethylene oxide.
[0029] The catalyst is ferric chloride.
[0...
Embodiment 2
[0039] A coagulation-promoting liquid grinding aid, which is made of the following components and mass fractions of raw materials: 7% aluminum sulfate, 7% magnesium sulfate, 42% modified alcohol amine small organic molecules, 5% sodium lignosulfonate %, calcium formate 2%, the rest is deionized water;
[0040] The modified small organic molecules of alcohol amines are prepared by the following method: the polyamines and the small organic molecules of epoxy are placed in a reaction vessel, the temperature is raised to 35° C., and after reacting for 1.5 hours under the action of a catalyst, the Add an organic acid to the obtained solution and react for 1 hour to obtain a modified alcohol amine organic small molecule; the molar ratio of the polyamine, epoxy organic small molecule, catalyst and organic acid is: 1.5:3:0.0015:3 .
[0041] The polyamines are p-phenylenediamine.
[0042] The epoxy organic small molecule is propylene oxide.
[0043] The catalyst is aluminum chloride...
Embodiment 3
[0053] A coagulation-promoting liquid grinding aid, which is made of the following components and mass fractions of raw materials: 8% aluminum sulfate, 8% magnesium sulfate, 43% modified alcohol amine small organic molecules, 6% sodium lignosulfonate %, calcium formate 2%, the rest is deionized water;
[0054] The modified small organic molecules of alcohol amines are prepared by the following method: the polyamines and the small organic molecules of epoxy are placed in a reaction vessel, the temperature is raised to 45° C., and after reacting for 2 hours under the action of a catalyst, the obtained Then add an organic acid to the solution and react for 1.5h to obtain a modified alcohol amine organic small molecule; the molar ratio of the polyamine, epoxy organic small molecule, catalyst and organic acid is: 2:4:0.002:3 .
[0055] The polyamines are 1,4-butanediamine.
[0056] The epoxy organic small molecule is 1,2-epoxybutane.
[0057] The catalyst is tin chloride.
[00...
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