A hyperbranched polymer flocculation demulsifier for treating oily and high-salt industrial wastewater and its preparation method and use method
A technology of hyperbranched polymer and flocculation demulsifier, applied in chemical instruments and methods, special compound water treatment, water/sludge/sewage treatment, etc. The single function of the flocculant and the reduction of the hydrodynamic radius can achieve the effect of good demulsification effect, strong flocculation ability and large hydrodynamic radius.
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[0033] The present invention also provides a preparation method of the above-mentioned hyperbranched polymer flocculation demulsifier for treating oil-containing high-salt industrial wastewater, which is characterized in that it comprises the following steps:
[0034] Add the aqueous solution of the first hyperbranched polyacryloyl ethylenediamine hydrochloride macromonomer dropwise to the mixed aqueous solution formed by the water-soluble monomer and the second hyperbranched polyacryloyl ethylenediamine hydrochloride macromonomer , carry out copolymerization reaction under the existence condition of initiator, obtain hyperbranched macromolecule flocculation demulsifier;
[0035] The preparation method of the first hyperbranched polyacryloyl ethylenediamine hydrochloride macromer or the second hyperbranched polyacryloyl ethylenediamine hydrochloride macromer is:
[0036] In an inert gas environment, acryloylethylenediamine hydrochloride undergoes an addition reaction to obtain...
Embodiment 1
[0062] 4g of acryloylethylenediamine hydrochloride was placed in a three-necked flask, and under the protection of nitrogen, the reaction device was placed in high-temperature silicone oil. The temperature was raised to 210° C., the reaction was carried out at this temperature for 4 hours, and then cooled to room temperature. The reaction product was dissolved in 5 ml of deionized water, filtered, and freeze-dried to obtain 3.1 g of polyacryloylethylenediamine hydrochloride as a brown-yellow solid.
[0063] Dissolve 0.1mol methacrylamide and 0.002mol polyacryloylethylenediamine hydrochloride in deionized water, and 0.008mol polyacryloylethylenediamine hydrochloride into a four-necked reaction flask equipped with a condenser, mechanical stirrer, and nitrogen gas inlet. The amine hydrochloride was dissolved in deionized water, and added dropwise into the reaction flask through a constant pressure titration funnel to obtain a mixed solution. Nitrogen gas was passed into the mixe...
Embodiment 2
[0068] 4g of acryloylethylenediamine hydrochloride was placed in a three-necked flask, and under the protection of nitrogen, the reaction device was placed in high-temperature silicone oil. The temperature was raised to 230° C., the reaction was carried out at this temperature for 8 hours, and then cooled to room temperature. The reaction product was dissolved in 5 ml of deionized water, filtered, and freeze-dried to obtain brown-yellow solid polyacryloylethylenediamine hydrochloride.
[0069] Dissolve 0.1mol of acrylamide and 0.1mol of polyacryloylethylenediamine hydrochloride in deionized water, and 0.1mol of polyacryloylethylenediamine hydrochloride into a four-necked reaction flask equipped with a condenser, mechanical stirrer, and nitrogen inlet. The acid salt was dissolved in deionized water, and added dropwise into the reaction flask through a constant pressure titration funnel to obtain a mixed solution. Nitrogen gas was blown into the mixed solution for 30 minutes, t...
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