Polyelement composite heavy oil emulsion splitter and preparation method thereof
A technology of demulsifier and heavy oil, which is applied in the direction of dehydration/demulsification by chemical methods, water treatment and refining, etc. It can solve the problem that it is difficult for demulsifiers to purify impurities and high-efficiency demulsification, demulsifiers cannot meet the use requirements, and the difference of harmful impurities is very large Large and other problems, achieve good demulsification effect, clear oil-water interface, and low cost
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[0024] Example 1
[0025] Add the initiator polyethylene polyamine and catalyst KOH to the pressure reaction vessel, add propylene oxide (PO) dropwise, control the temperature at 120-140°C, and continue the reaction for 30 minutes after the pressure drops to less than 0.4MPa; open the pressure reaction vessel, Add ethylene oxide (EO) dropwise, continue the reaction for 30 minutes after the pressure drops to less than 0.4MPa, cool down, open the pressure reactor, adjust the pH of the reactant to neutral with glacial acetic acid to obtain polyethylene polyamine polyoxyethylene Polyoxypropylene ether.
[0026] The specific raw material ratio is shown in Table 1. The amount of KOH is 0.3% of the total raw material mass to obtain polyethylene polyamine polyoxyethylene polyoxypropylene ether D1 and polyethylene polyamine polyoxyethylene polyoxypropylene ether D2.
[0027] Table 1 Preparation raw materials of polyethylene polyamine polyoxyethylene polyoxypropylene ether
[0028] Polyeth...
Example Embodiment
[0029] Example 2
[0030] Add initiator and catalyst KOH into the pressure reaction vessel, add propylene oxide dropwise, control the temperature at 120-140°C, and continue the reaction for 30 minutes after the pressure drops to less than 0.4MPa; open the pressure reaction vessel and add ethylene oxide dropwise. After the pressure is reduced to less than 0.4 MPa, the reaction is continued for 30 minutes, the temperature is lowered, the pressure reactor is opened, and the pH value of the reactant is adjusted to neutral with glacial acetic acid to obtain fatty alcohol polyoxyethylene polyoxypropylene ether.
[0031] The specific raw material formulations are shown in Table 2. The amount of the initiator is 0.3% of the total raw material mass to obtain polyethylene polyamine polyoxyethylene polyoxypropylene ether Z1 and polyethylene polyamine polyoxyethylene polyoxypropylene ether Z2 respectively.
[0032] Table 2 Preparation raw materials of fatty alcohol polyoxyethylene polyoxypropyle...
Example Embodiment
[0034] Example 3
[0035] After uniformly mixing deionized water, acrylic acid, chain transfer agent isopropanol and initiator ammonium persulfate, they are placed in a 60-65° C. water bath to react for 3 to 4 hours to obtain polyacrylic acid.
[0036] The specific raw material ratios are shown in Table 3, and polyacrylic acid B1 and polyacrylic acid B2 are obtained respectively.
[0037] Table 3 Preparation materials of polyacrylic acid
[0038] Polyacrylic acid
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