Preparation method of binary polymer wax oil pour point reducer
A technology of pour point depressant and polymer, which is applied in the field of preparation of chemical preparations to achieve superior pour point depressant effect, good pour point depressant effect and stable performance
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[0021] In a three-necked flask were added 4.903 g of maleic anhydride, 40.5735 g of stearyl alcohol, and toluene (9.0953 g) as the solvent and water-carrying agent. At the beginning of the reaction, preheat first to fully mix and dissolve the reactants. When the solution is clear, add 0.6821 g of catalyst at 80°C. Continue to increase the temperature until the solution boils, and the water produced by the reaction enters the water separator with the toluene. When the output water is equal to the theoretical value, stop heating. After the reaction is completed, vacuum distillation is performed, the solvent toluene is evaporated, and then washed with absolute ethanol three times to obtain octadecyl maleic anhydride.
[0022] Put the purified esterification reaction product maleic anhydride stearyl ester in a three-necked flask and heat it in a constant temperature water bath. Add 12.9135 g of vinyl acetate and 1.1678 g of initiator BPO into the three-necked flask....
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