Method for separating oil and water emulsions
Patent 4938876 Issued on July 3, 1990. Estimated Expiration Date: 
March 2, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 2, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorApplicationNo. 318176 filed on 03/02/1989US Classes:210/708, Including emulsion breaking210/177, With treating fluid addition210/178, With mechanical agitator or movable separator210/182, Diverse separators210/195.1, Serially connected distinct treating or storage units210/202, Diverse type210/712, Including recycling210/723, Utilizing precipitant, flocculant, or coagulant, each with accelerator or with each other or plural precipitants, flocculants, or coagulants210/728, Including organic agent210/734, Nitrogen containing (e.g., amine, azo, etc.)210/737, Including temperature change210/738Including agitationExaminersPrimary: Hruskoci, Peter A.Assistant: Shideler, Krisanne Attorney, Agent or FirmForeign Patent References
International ClassesB01D 017/04738 747 177 199 AbstractThe present invention provides a process and apparatus for separating oil water and solids from emulsions. More particularly, the present invention provides a process and apparatus for continuously separating oil, water and solids from stable mixtures thereof, comprising heating the mixture to at least about 115° C., rapidly cooling the mixture to below 100° C., separating the solids from the liquids and separating the water from the oil. Preferably, the invention also includes the step of adding a flocculant prior to cooling the mixture.Field of SearchIncluding emulsion breakingUtilizing precipitant, flocculant, or coagulant, each with accelerator or with each other or plural precipitants, flocculants, or coagulants Including temperature change Including temperature change Nitrogen containing (e.g., amine, azo, etc.) With mechanical agitator or movable separator Heavy metal WITH HEATER OR HEAT EXCHANGER Including recycling Including organic agent Including temperature change Cyclonic, or centrifugal (e.g., whirling or helical motion or by vortex, etc.) Flow line connected in series with distinct separator Diverse separators Serially connected distinct treating or storage units TANGENTIAL FLOW OR CENTRIFUGAL FLUID ACTION Diverse type With treating agent With acid Organic acid | |
