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| Number | Title | Issue Date |
| 8177985 | Methods for separating oil and water The present invention relates to methods for the separation of oil and water, in particular through the action of a polymeric material on oil/water emulsions (including oil-in-water and water-in-oil emulsions). ... | 05/15/2012 |
| 8101086 | Oil/water separation of full well stream by flocculation-demulsification process A process for the separation of production fluids is provided. The production fluids comprise an oil/water emulsion stabilized with fine solids. The emulsion may further comprise asphaltenes and naphthenic acids and resins. The process includes subjecting the emulsi... | 01/24/2012 |
| 7998351 | Tannin based polymeric coagulants composition and method of use Composition and method of use for tannin based environmentally benign polymeric coagulants are disclosed. Tannin based coagulants are copolymers of naturally occurring tannins and a cationic monomer. One embodiment of the present invention provides for a composition... | 08/16/2011 |
| 7988864 | Process and device for separation of liquids emulsified in mixtures of liquids and gases dissolved in mixtures of liquids and gases by localized pressure reduction A process and a device implementing the process, for separating fluids in emulsion and/or in solution, and/or for low pressure distillation, in particular of water and/or gaseous hydrocarbons dissolved in crude petroleum, and/or for separation of crude petroleum dro... | 08/02/2011 |
| 7935261 | Process for treating waste drilling mud A method is provided of recycling and cleaning up oil-based waste drilling mud and cuttings contaminated with oil-based waste drilling mud. A facility for performing the method is also provided. The method includes removing the coarse solids from the mud, breaking t... | 05/03/2011 |
| 7867399 | Method for treating waste drilling mud A method is provided of recycling and decontaminating oil-based waste drilling mud and cuttings contaminated with oil-based waste drilling mud. A facility for performing the method is also provided. The method includes removing the coarse solids from the mud, breaki... | 01/11/2011 |
| 7780854 | Methods for separating oil and water The present invention relates to methods for the separation of oil and water, in particular through the action of a polymeric material on oil/water emulsions (including oil-in-water and water-in-oil emulsions). ... | 08/24/2010 |
| 7736518 | Separating mixtures of oil and water A cavitation device is used to heat and facilitation the separation of mixtures and emulsions of oil and water. Waste heat from the power source for the cavitation device may be utilized to elevate the temperature of incoming mixtures or emulsions. The heated mixtur... | 06/15/2010 |
| 7678280 | Method for recycling of oil based drilling fluid contaminated with water and water contaminated with oil based drilling fluid A mobile apparatus and method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oleaginous component and an aqueous component. The apparatus includes an emulsion breaking tank, a water treatment tank... | 03/16/2010 |
| 7611633 | Method and device for separation of a fluid, in particular oil, gas and water A method for separation of fluid, in particular oil, gas and water, in connection with the extraction of such a fluid from formations under the surface of the earth or the sea bed. The fluid is transported in a supply pipe or transport pipe (4) to a separator... | 11/03/2009 |
| 7575690 | Recycling hydrocarbon hydraulic stimulation fluid Hydrocarbon stimulation fluids are often used to increase the permeability and productivity of oil and gas reservoirs. The fluid itself is made up of a mixture of hydrocarbons and various chemicals designed to induce gel formation and gel breaking. The successful re... | 08/18/2009 |
| 7572382 | Recycling hydrocarbon hydraulic stimulation fluid Hydrocarbon stimulation fluids are often used to increase the permeability and productivity of oil and gas reservoirs. The fluid itself is made up of a mixture of hydrocarbons and various chemicals designed to induce gel formation and gel breaking. The successful re... | 08/11/2009 |
| 7517458 | Process obtaining landfill disposable wasted from hydrocarbon containing sludge A method of processing oily sludge to remove a substantial proportion of the water and hydrocarbon content therefrom to form a solid cake of waste material that is suitable for disposal in land fill sites. The method involving, firstly promoting flocculation in a ba... | 04/14/2009 |
| 7514005 | Method of processing drilling fluid A method for processing drilling fluid comprising an oil and water emulsion and solid material includes breaking the emulsion into an oil phase and a water phase, increasing the surface area of the solid material, adsorbing at least some of the water phase to the in... | 04/07/2009 |
| 7507344 | Method for recycling of oil based drilling fluid contaminated with water and water contaminated with oil based drilling fluid A mobile apparatus and method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oleaginous component and an aqueous component. The apparatus includes an emulsion breaking tank, a water treatment tank... | 03/24/2009 |
| 7442311 | Emulsion and effluent treatment processes An emulsion and affluent process which treats and breaks very tight emulsions and separates dissolved solids from associated fluids produced in industry, whereby solids and fluids are separated into clean interfacial phases thus providing an improved quality saleabl... | 10/28/2008 |
| 7431845 | Method of clarifying oily waste water A method of clarifying oily waste water comprising adding to the waste water an effective clarifying amount of one or more demulsifiers selected from the group consisting of dendritic polyamines, dendritic polyamidoamines and hyperbranched polyethyleneimines and the... | 10/07/2008 |
| 7416671 | Separation and recovery of bitumen oil from tar sands A process for the separation of bitumen oil from tar sands and the like. Slurry is supplied to a mixing chamber of a jet pump at an input end of the process. The slurry is agitated within the jet pump to effect a partial to full phase separation of the oil fraction ... | 08/26/2008 |
| 7404903 | Drill cuttings treatment system A process for the separation of oil from invert mud drill cuttings. Invert mud drill cuttings are supplied to a mixing chamber of a jet pump. The invert mud drill cuttings are agitated within the jet pump to effect transformation of the solids-oil matrix of the inve... | 07/29/2008 |
| 7384562 | Treatment of brown grease The invention is a process for treatment of brown grease, where the brown grease comprises water, food solids and free-oil. This process starts with the collection of the brown grease into a container. The brown grease's pH is adjusted with a chemical treatment to p... | 06/10/2008 |
| 7374690 | Processes for removing oil from solid wellbore materials and produced water Processes for removing oil from a solid wellbore material such as drill cuttings or water such as produced by a subterranean formation include contacting the solid material/water with an amino-substituted polymer such as chitosan and a halogenating agent. The oil se... | 05/20/2008 |
| 7373276 | Quantitative evaluation of emulsion stability based on critical electric field measurements A method for quantitative evaluation of emulsion stability using Critical Electric Field (CEF) determinations over a range of conditions, such as a range of temperatures, demulsifier compositions, or demulsifier concentrations. The method includes determining the CE... | 05/13/2008 |
| 7367206 | Dry-cleaning machine The present invention provides a dry-cleaning machine capable of performing a water-repellent finishing process when necessary, while ensuring a high level of safety. When the water-repellent finishing process has been performed after the drying process (Step S2 | 05/06/2008 |
| 7363982 | Subsea well production flow system Methods and apparatus for flowing a subsea well. The method comprises the steps of: supplying a multi-phase medium from a subsea tree 18 to a removable separator package 10; separating the multi-phase flow into one or more phases at the desired pressur... | 04/29/2008 |
| 7364664 | Foreign matter removing mechanism, fluid flow processing equipment, and foreign matter removing method The present processing apparatus blocks off such a portion of a flow of a plating solution (17) that is other than a vicinity of a liquid surface, by using a first partition plate (15) whose lower end is in close contact with a bottom of a plating tank... | 04/29/2008 |
| 7351342 | Method for recovering fluorine-containing emulsifier An aqueous solution containing a fluorine-containing emulsifier in a low concentration of at least 1 ppm by mass and at most 1% by mass (e.g., coagulation waste water after an emulsion polymerization of a fluoropolymer and/or an aqueous solution obtained by washing ... | 04/01/2008 |
| 7347945 | Method and an installation for separating out multiphase effluents The invention relates to a method and to an installation for separating out an effluent made up of a multi-phase fluid mixture. According to the invention, said installation includes gravity separator means whose geometrical separation characteristics can be adjuste... | 03/25/2008 |
| 7341668 | Filter aid and method of using same for reclaiming water-based fluids used in metal working processes A filter aid and a method of using the same are disclosed that effectively removes contaminants from water-based metal forming liquids used in aluminum forming, rolling and other metal working processes. The filter aid includes a cellulosic material and a cationic p... | 03/11/2008 |
| 7338605 | Filter aid and method of using same for reclaiming water-based fluids used in metal working processes A filter aid and a method of using the same are disclosed that effectively removes contaminants from water-based metal forming liquids used in aluminum forming, rolling and other metal working processes. The filter aid includes a cellulosic material and a cationic p... | 03/04/2008 |
| 7331472 | Method and apparatus for separation of a mixture of non-miscible liquids A tank has an inlet opening mounted at an end wall at the beginning of an elongated horizontal path for supplying a mixture to be separated, and two outlet openings mounted at the end of the elongated horizontal path for separately draining the separated liquids. An... | 02/19/2008 |
| 7323342 | Method for improving oil desalting by forming unstable water-in-oil emulsions A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight fraction of the oil that is most strongly adsorbed on a silica gel column success... | 01/29/2008 |
| 7300578 | Apparatus for recycling of oil-based drilling fluid contaminated with water and water contaminated with oil based drilling fluid A mobile apparatus and method for recycling an invert emulsion based drilling fluid, in which the invert emulsion based drilling fluid includes an oleaginous component and an aqueous component. The apparatus includes an emulsion breaking tank, a water treatment tank... | 11/27/2007 |
| 7300545 | Water-soluble polymer dispersion, process for producing the same and method of use therefor A water-soluble polymer dispersion, process for producing the same and a method of use therefor. In particular, the water-soluble polymer dispersion is one comprising water-soluble polymer fine particles of 100 μm or less diameter having at least one ionic property... | 11/27/2007 |
| 7291275 | Method for clarifying industrial wastewater while minimizing sludge Methods are described for removing contaminates from aqueous industrial wastewater process streams, specifically industrial laundries to yield a less contaminated aqueous effluent for discharge to a sewer and reduce the sludge generated therefrom. A premixed medium/... | 11/06/2007 |
| 7282152 | Selenium removal method The present invention provides a method for removing selenium from an aqueous stream by passing the aqueous stream, in combination with a quaternary amine compound, through a filter and recovering a treated aqueous stream which is depleted in selenium content relati... | 10/16/2007 |
| 7279502 | Polyamine analog conjugates and quinone conjugates as therapies for cancers and prostate diseases Peptide conjugates in which cytocidal and cytostatic agents, such as polyamine analogs or naphthoquinones, are conjugated to a polypeptide recognized and cleaved by enzymes such as prostate-specific antigen (PSA) and cathepsin B are provided, as well as compositions... | 10/09/2007 |
| 7276151 | Gas turbine fuel oil and production method thereof and power generation method Feed oil is subject to atmospheric distillation, to thereby be separated into light oil or light distillate and atmospheric residue oil. The light distillate is catalytically contacted with pressurized hydrogen in the presence of a catalyst, resulting in a first hyd... | 10/02/2007 |
| 7267760 | Method of removing contaminants from used oil In a method of removing acidic compounds, color, and polynuclear aromatic hydrocarbons, and for removing or converting hydrocarbons containing heteroatoms from used oil distillate, phase transfer catalysts are employed to facilitate the transfer of inorganic or orga... | 09/11/2007 |
| 7264729 | Process for reducing contaminants in condensate resulting from the conversion of bauxite to alumina This invention relates to a process for reducing the contaminants in condensate resulting from the conversion of bauxite to alumina. ... | 09/04/2007 |
| 7250462 | Amphoteric water-soluble polymer dispersion and use thereof The invention relates to an amphoteric water-soluble polymer dispersion containing polymer particles with particle diameters of 100 μm or smaller and produced by dispersion-copolymerization of a monomer mixture comprising a methacrylate monomer containing a quatern... | 07/31/2007 |
