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| Number | Title | Issue Date |
| 7026363 | Alkoxylated polyglycerols and their use as demulsifiers The present invention relates to the use of alkoxylated polyglycerols preparable by polycondensation of glycerol and subsequent alkoxylation for demulsifying water-oil emulsions, in particular in the production of crude oil from crude oil/water emulsions. The invent... | 04/11/2006 |
| 7014773 | Demulsification of emulsions by socillatory mixing The invention includes a method for demulsification of water-in-oil emulsions, oil-in-water emulsions, and mixtures of water-in-oil and oil-in-water emulsions by oscillatory mixing of the emulsions. ... | 03/21/2006 |
| 6989103 | Method for separating fluids Methods of treatment of fluids produced by an oil or gas well following a stimulation operation, allowing separation from the fluids and re-injection of oil and gas hydrocarbons in a production pipeline under pressure, and allowing achievement of suitable quality fo... | 01/24/2006 |
| 6716358 | Demulsification of water-in-oil emulsions The invention includes a method for demulsification of water-in-oil emulsions. ... | 04/06/2004 |
| 6555009 | Demulsification of water-in-oil emulsions The invention includes a method for demulsification of water-in-oil emulsions.... | 04/29/2003 |
| 6509041 | Compositions for plants containing phosphonate and phosphate salts, and derivatives thereof A fungicidal composition for plants containing phosphonate (PO3) and phosphate (PO4) salts, and derivatives thereof is disclosed. The composition provides a single product which may be employed to control a Phytophthora infestans inf... | 01/21/2003 |
| 6130258 | Polyvalent metal cations in combination with dithiocarbamic acid compositions as board spectrum demulsifiers A method for resolving an oil-and-water emulsion is disclosed. The method comprises adding to the emulsion (1) if the emulsion does not contain a desirably high concentration of polyvalent metal cations of at least one part per million by weight, an amoun... | 10/10/2000 |
| 5769567 | Process and machine for the implementation of a bonding layer and road type coating comprising such a layer A process and a machine for forming a bonding layer for bonding a bituminous coated material layer on a support. The process includes application of a surface-active agent on the support, application of a bituminous emulsion on the surface-active agent on... | 06/23/1998 |
| 5195847 | Process for cleaning drilling mud contaminated with hydrocarbons A process for recovering hydrocarbon contaminants from a drilling mud by adding a hydrocarbon diluent along with a wash water to create an emulsion. The wash water having a surfactant dissolved therein. The resultant emulsion is subjected to centrifugatio... | 03/23/1993 |
| 5110443 | Converting heavy hydrocarbons into lighter hydrocarbons using ultrasonic reactor A process for converting heavy hydrocarbons into lighter hydrocarbons. The process comprises forming an oil-in-aqueous phase emulsion and feeding the formed emulsion into an ultrasonic reactor wherein heavy hydrocarbons are converted into lighter hydrocar... | 05/05/1992 |
| 5000857 | Water-oil separation method A method is shown for separating water from an oil-water system. A separator composition is blended from cactus extract, and activator and a carrier liquid. The separator composition causes separation of the oil and water into distinct layers which allows... | 03/19/1991 |
| 4826625 | Methods for treating hydrocarbon recovery operations and industrial waters Use of nitrogen-containing tridithiocarbamic acid compositions as reverse demulsifiers.... | 05/02/1989 |
| 4824580 | Method for removing waste oil particles from a waste water fluid stream A method for removing waste oil particles having a particle size generally in the range of 1-97 microns from a waste water stream includes first transmitting seed oil particles having a particle size of at least 20 microns into the waste water stream. The... | 04/25/1989 |
| 4795478 | Viscous hydrocarbon-in-water emulsions Method for the formation, processing, transportation and end use of a hydrocarbon-in-water emulsion.... | 01/03/1989 |
| 4689177 | Use of tridithiocarbamic acid compositions as demulsifiers Use of nitrogen-containing tridithiocarbamic acid compositions as reverse demulsifiers.... | 08/25/1987 |
| 4582629 | Use of microwave radiation in separating emulsions and dispersions of hydrocarbons and water Oil and water emulsions can be more rapidly separated when exposed to electromagnetic radiation in the range of from 1 to 300 millimeters, commonly called microwaves. The microwave treatment can be in conjunction with other separating and heating devices ... | 04/15/1986 |
| 4569785 | Thioureylenes and uses thereof This invention relates to Thioureylene prepared by reacting an oxyalkylated polyamine with thiourea and to uses of such Thioureylene for example in removing oils, solids, and combinations thereof from aqueous systems, etc.... | 02/11/1986 |
| 4342657 | Method for breaking petroleum emulsions and the like using thin film spreading agents comprising a polyether polyol The invention relates to a method of breaking petroleum emulsions, by utilization of a homogeneous, micellar solution of a water-insoluble thin film spreading agent comprising: (a) from between about 5% and about 75% by weight of a polyether polyol; (b) f... | 08/03/1982 |
| 4326968 | Method for breaking petroleum emulsions and the like using micellar solutions of thin film spreading agents comprising polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols The invention relates to the use of a homogeneous, micellar solution of a water-insoluble thin film spreading agent comprising polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols for the breaking of petroleum emulsions, an... | 04/27/1982 |
| 4326983 | Micellar solutions of thin film spreading agents comprising a polyether polyol The invention provides a homogeneous, micellar solution of a water-insoluble thin film spreading agent comprising: (a) from between about 5% and about 75% by weight of a polyether polyol; (b) from between about 2% and about 30% by weight of a hydrotropic ... | 04/27/1982 |
| 4326984 | Micellar solutions of thin film spreading agents comprising polyepoxide condensates or resinous polyalkylene oxide adducts and polyether polyols The invention provides a homogeneous, micellar solution of a water-insoluble thin film spreading agent comprising polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols comprising: (a) from between about 5% and about 75% by w... | 04/27/1982 |
| 4316808 | Method for breaking petroleum emulsions and the like using micellar solutions of thin film spreading agents comprising an acylated polyether polyol The invention relates to the use of a homogeneous, micellar solution of a water-insoluble thin film spreading agent for the breaking of petroleum emulsions, and the like, comprising: (a) from between about 5% and about 75% by weight of an acylated polyeth... | 02/23/1982 |
| 4309306 | Micellar solutions of thin film spreading agents comprising resinous polyalkylene oxide adducts The invention provides a homogeneous, micellar solution of a water-insoluble thin film spreading agent, comprising: (a) from between about 5% and about 75% by weight of resinous polyalkylene oxide adducts; (b) from between about 2% and about 30% by weight... | 01/05/1982 |
| 4306981 | Method for breaking petroleum emulsions and the like comprising resinous polyalkylene oxide adducts The invention relates to a method of breaking petroleum emulsions by utilization of a micellar solution of a water-insoluble thin film spreading agent, comprising: (a) from between about 5% and about 75% by weight of resinous polyalkylene oxide adducts; (... | 12/22/1981 |
| 4273191 | Simultaneous oil recovery and waste disposal process A process for recovering oil from oil containing masses and formations by contacting such oil bearing masses with waste foul condensates, known as black liquor, from paper and pulping operations, thereby to free the oil present or bound up in such masses ... | 06/16/1981 |
