A kind of method using phenol as raw material to prepare condensate oil-water emulsion demulsifier
A technology for demulsifier and condensate oil, which is applied in the field of preparation of condensate oil-water emulsion demulsifier, can solve the problems of wasting energy, affecting gas well productivity, sewage environmental protection and safety substandard, etc., and achieves the effect of reducing pollution and reducing the oil content of sewage
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[0026] (1) Add 200kg of phenol into the reaction kettle, heat up to 90°C, stir for 30 minutes after the product melts, add 2kg of dodecylbenzenesulfonic acid, add 50kg of 1500# solvent oil, and stir for 10 minutes. Lower the temperature to 80°C, and add 66kg of formaldehyde dropwise at 75°C to 80°C. After the dropwise addition, keep the reaction at this temperature for 1 hour. Then raise the temperature and reflux to divide the water, and the temperature is controlled between 125-155°C until no more water is precipitated; the phenolic resin is obtained.
[0027] (2) Cool down the phenolic resin to 90°C, vacuumize until the pressure in the reactor reaches -0.08MPa, the vacuum time should not be less than 30 minutes, and then check the moisture until the moisture is controlled below 0.05%, then stop the vacuum.
[0028] (3) Cool down to 58-60°C, add 160 kg of 10% potassium methoxide solution from the drip tank on the upper part of the reaction kettle, of which 10% potassium meth...
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