Preparation method of ethidene diamine type polyether demulsifying agent
An ethylenediamine type, polyether technology, applied in the field of preparation of demulsifier, to achieve the effect of good broad-spectrum and ideal dehydration effect
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[0017] The following further describes the present invention through specific embodiments, but the embodiments are not a limitation of the present invention.
[0018] A preparation method of ethylenediamine type polyether demulsifier includes the following steps:
[0019] ①Synthesis of polyether demulsifier A: 50 grams of ethylenediamine and 35 grams of potassium hydroxide are added to the reactor, heated to increase the temperature, and 5063 grams of propylene oxide are introduced, the temperature is controlled at 115~165℃, and the pressure is maintained below 0.6MPa , And make the first stage fully react, vacuum for 1 hour. Then 3200 grams of ethylene oxide was introduced, the temperature was controlled at 115-165°C, the pressure was maintained below 0.3 MPa, and the reaction was fully carried out, and vacuum was applied for 1 hour. Then pass in 1687 propylene oxide, control the temperature at 115-165°C, maintain the pressure below 0.3 MPa, and make it undergo the second stage f...
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