| 摘要 |
<p>DEMULSIFICATION OF PETROLEUM EMULSIONS(D#73,500-RCA-31-F) A process for recovering oil from either waterbituminous petroleum emulsions or from crude petroleum emulsions having a pH of 10 or less by adding thereto an optimum amount of non-ionic, water soluble polyethylene oxide resins at a pH of 10 or less, and separating the oil from water. To resolve bituminous petroleum emulsions, the process is carried out at between 150.degree.F and 210.degree.F and a diluent is added to reduce the petroleum viscosity. The minimum effective concentration of the resins used decreases as their molecular weight increases. In a modification of the process, an effective amount of an alkaline earth metal halide such as calcium chloride is added to improve coagulation and separation of any clay present. I</p> |
