Preparation method for grinding aid used for slag
A grinding aid and slag technology, applied in the production field of slag micropowder, can solve the problems of unpredictable grinding aid effect, high amount of grinding aid, single functional group, etc., so as to improve the grinding aid effect and storage stability. , good grinding effect and simple preparation method
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Embodiment 1
[0034] Weigh 144 parts of dimethyl maleate, add in the reactor, start stirring and circulating cooling water. Weigh 72 parts of ethylenediamine and transfer it to the high-level tank, drop it into the reactor at a certain flow rate, react under normal temperature and pressure until the addition of ethylenediamine is completed, and continue the heat preservation reaction for 2.0h. Then weigh 167 parts of ethylene oxide, drop it into the reactor at a certain flow rate, react at room temperature and under the pressure of the reaction system itself until the dropwise addition of ethylene oxide is completed, and continue the heat preservation reaction for 0.5h. The obtained polyamine monomer is A-1.
[0035] Weigh 1100 parts of A-1 and 150 parts of B-1, add water to dilute to a solid content of 40% to 50%, and use 30% liquid caustic soda to neutralize to a pH of 8 under stirring conditions to obtain a finished grinding aid, denoted as C -1.
Embodiment 2
[0037] Weigh 86 parts of diethyl maleate, add it into the reactor, start stirring and circulating cooling water. Weigh 48 parts of butanediamine and transfer it to the high level tank, drop it into the reactor at a certain flow rate, react under normal temperature and pressure until the addition of butanediamine is completed, and continue the heat preservation reaction for 4.0h. Then weigh 44 parts of ethylene oxide and 37 parts of propylene oxide, mix them uniformly and drop them into the reactor at a certain flow rate, react at room temperature and under the pressure of the reaction system itself until the addition of alkylene oxide is completed, and continue the heat preservation reaction 1.0h. The obtained polyamine monomer is A-2.
[0038] Weigh 100 parts of A-2 and 100 parts of B-2, add water to dilute to a solid content of 40% to 50%, and use 30% liquid caustic soda to neutralize to a pH of 10 under stirring conditions to obtain a finished grinding aid, denoted as C -...
Embodiment 3
[0040]Weigh 100 parts of dibutyl maleate, add it into the reactor, start stirring and circulating cooling water. Weigh 54 parts of 1,2-cyclohexanediamine and transfer it to the high-level tank, drop it into the reactor at a certain flow rate, and react under normal temperature and pressure until the addition of 1,2-cyclohexanediamine is completed, and continue to keep warm Reaction 6.0h. Then weigh 29 parts of ethylene oxide and 61 parts of epichlorohydrin, mix them uniformly and drop them into the reactor at a certain flow rate, react at room temperature and under the pressure of the reaction system itself until the addition of alkylene oxide is completed, and continue to keep warm Reaction 0.8h. The obtained polyamine monomer is A-3.
[0041] Weigh 350 parts of A-3 and 100 parts of B-3, add water to dilute to a solid content of 40% to 50%, and use 30% liquid caustic soda to neutralize to a pH of 12 under stirring conditions to obtain a finished grinding aid, denoted as C ...
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