Class 204/573 - Resolving emulsion or dispersion

Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Process which involves breaking an emulsion or dispersion
No. of patents: 35
Last issue date: 04/01/2008

Number	Title	Issue Date
7351320	Multiple frequency electrostatic coalescence A method of augmenting the separation of immiscible heavier and lighter components of an emulsion including the steps of conducting the emulsion into a treatment vessel, providing an AC voltage source, employing from the source an AC voltage of at least one selected...	04/01/2008
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
6860979	Dual frequency electrostatic coalescence A method of augmenting the separation of immiscible heavier and lighter components of an emulsion including the steps of passing the emulsion into a treatment vessel, establishing at least one dual frequency electric field within the vessel and selectably varying th...	03/01/2005
6692627	Electrical field flow fractionation (EFFF) using an electrically insulated flow channel The present invention is an apparatus and a process for separation and resolution of particles suspended in, or molecules dissolved in, a sample mixture or solution using electrical field flow fractionation (EFFF). Fractionation of individual components i...	02/17/2004
6428669	Method for separating the constituents of a dispersion In order to improve the efficiency of the separation of an insulating liquid from a dispersum, in particular of water dispersed in oil, the electric conductivity of a dispersion having the dispersion constituents is measured continuously or discontinuousl...	08/06/2002
6136178	Method and apparatus for separating oil from water in wastewater containing an emulsified oil Wastewater containing a surfactant and an oil content that has been emulsified by the action of the surfactant can be freed of the oil content by a method including feeding the wastewater into the anode compartment, for electrolysis, of a diaphragm electr...	10/24/2000
6036840	Method and a reactor for electrochemical conversion of a material e.g. soot particles being insoluble in a fluid A method and a reactor for electrochemical conversion of a material (21) being insoluble in a fluid into a material being soluble in the fluid, which method comprises that a flow of the fluid is passed to a reaction zone which comprises an internal circui...	03/14/2000
6017439	Method and apparatus for separating liquid mixtures using intermittent heating A liquid mixture is efficiently separated using a separating membrane against which the liquid is sprayed, the membrane being intermittently heated to increase separation without subjecting the liquid mixture to high heat. The method is suited to flammabl...	01/25/2000
6001266	Separation of small particles Small particles, of macromolecular size or the like, are separated in a liquid by size by applying electric fields of predetermined distributions in time and space to enhance the Brownian motion of the particles so as to favor motion of particles of a par...	12/14/1999
5876589	Method and apparatus for separating oil from water in wastewater containing an emulsified oil Wastewater containing a surfactant and an oil content that has been emulsified by the action of the surfactant can be freed of the oil content by a method including feeding the wastewater into the anode compartment, for electrolysis, of a diaphragm electr...	03/02/1999
5861089	Electric field enhanced coalescence of emulsions comprising a silicon containing compound or silicon containing polymer A process for separating an emulsion into separate and easily recoverable phases. The process comprises exposing an emulsion comprising a discontinuous phase and a non-conducting continuous phase to an electric field thereby effecting coalescence of the d...	01/19/1999
5693214	Apparatus for and method of separation to water and colloidal particles by agglomeration An apparatus for separating an aqueous colloidal solution into water and agglomerate of colloidal particles by applying a high frequency voltage to the aqueous colloidal solution comprises a tank accommodating the aqueous colloidal solution, and at least ...	12/02/1997
5643469	Process for separating phases of different densities and conductivities by electrocoalescence and centrifugation Device for separating a mixture consisting of at least a continuous phase (I) and of at least a conducting disperse phase (II) in the form of particles such as drops in the continuous phase, the two phases having different densities. The device includes a...	07/01/1997
5525201	Oxyalkylated phenol/formaldehyde resin for desalter applications in the refinery Industry Certain base catalyzed oxyalkylated-cardanol-alkylphenol-aldehyde resins may be utilized in refinery demulsification operations. These materials find particular utility in breaking water-in-oil emulsions resulting from the water wash of crude oils. The ma...	06/11/1996
5435920	Method of separating emulsions A process is disclosed for cleaving spent emulsions such as cooling lubricants by means of carbon dioxide under pressure, and if necessary, heat in an economic and environment-friendly manner. The emulsion of cooling lubricant is saturated under pressure ...	07/25/1995
5358614	Method and apparatus for the removal of bioconversion of constituents of organic liquids A method and apparatus for the removal or conversion of constituents from bulk organic liquids. A countercurrent biphasic bioreactor system is utilized to disperse and recoalesce a biocatalyst contained in the aqueous liquid phase into the organic liquid ...	10/25/1994
5352343	Separation of the components of liquid dispersions The invention provides a method of separating the components of a liquid/liquid dispersion or emulsion, comprising the step of applying simultaneously to the dispersion or emulsion both an electric field and an aligned centrifugal force, in such a way as ...	10/04/1994
5338421	Method of and apparatus for separation by agglomeration A method of separating an aqueous colloidal solution by agglomeration into water and agglomerate of colloidal particles by applying voltage to the aqueous colloidal solution to promote the agglomeration of colloidal particles. The frequency of the voltage...	08/16/1994
5244550	Two liquid separating methods and apparatuses for implementing them The present invention is conceived to provide methods for efficiently separating two liquids different in sp. gr. which are in a mixed state and apparatuses for implementing them. The present invention devised an arrangement such that between an outer cyl...	09/14/1993
4717480	Method for separation of liquid mixture A method for separation of a liquid mixture wherein a component, intended to be separated, in the liquid mixture is concentrated in the interiors of particles having an average size of 0.1 to 10 μm; the particles are then transported to the surface of a ...	01/05/1988
4661227	Apparatus and method for removal of inorganic aqueous solutions from organic solvents In the preferred and illustrated embodiment, a coalescer for separating an organic solvent from an aqueous solution (typically with an inorganic salt dissolved therein) is disclosed. In the preferred and illustrated embodiment, an upstanding housing havin...	04/28/1987
4624763	Separation of dispersed phase from phase mixture In order to separate dispersed contaminant phase from a phase mixture comprising the contaminant phase dispersed in a continuous background fluid phase (for example a water-in-oil emulsion), net unipolar charge is injected into the emulsion with an electr...	11/25/1986
4624765	Separation of dispersed liquid phase from continuous fluid phase Separation of dispersed liquid contaminant, for example removal of water droplets from oil, is achieved by introducing free charge into the mixture by means of charge injector (1) and discharging the charged mixture through a gas or vapor gap into a separ...	11/25/1986
4618432	Method and apparatus for charging a contaminant-laden liquid In order to inject a net unipolar charge, for example using a charge injector (1), into a liquid containing a dispersed contaminant without risk of blockage or arcing in the charge injector which could arise if the contaminated liquid were passed through ...	10/21/1986
4606801	Electrostatic mixer/separator Electrodes, in the form of plates, are held parallel to each other to form passageways in which electrostatic fields are generated when the plates are charged by a source of variable voltage. The variable voltage is programmed to establish an initial elec...	08/19/1986
4514272	Process and device for breaking stabilized emulsions, especially oil-water emulsions Process and device for breaking stabilized emulsions. Such a device is constituted by a tank divided into two compartments by a permeable membrane constituting a percolating electrode connected to a continuous or pseudo-continuous electric current supply, a fi...	04/30/1985
4419200	Electrical coalescense of liquid emulsions An improved process for electrically coalescing water-in-oil emulsions in an AC electrical field, wherein the improvement comprises using insulated electrodes having a dielectric constant which is at least about 3 and having a hydrophobic surface in conta...	12/06/1983
4226689	Apparatus and process for electrically resolving emulsions An electric treater and process for electrically resolving emulsions into organic and aqueous phases. The treater includes a horizontally positioned, planar, permeable electrode which is the only electrode means positioned in the treater. The interface be...	10/07/1980
4224124	Electrostatic coalescing system An electrode is fluid-coupled to the driven electrode, which is directly connected to either an AC or a DC source of potential. The driven electrode is provided with the usual ground electrode to establish the electrostatic field of a coalescing system. T...	09/23/1980
4204934	Process for application of electrostatic fields to mixing and separating fluids Flow paths for liquids are disclosed in vessels, the paths oriented with electrodes which are electrically energized to establish electrostatic fields through the paths, one of the liquids is more polar than the other liquids in the paths, one of the fiel...	05/27/1980
4200509	Method for dewaxing refined vegetable oils for refrigerator clarity stability A method of dewaxing an electrical high-resistivity refined vegetable oil, containing no more than 0.1% moisture, to provide a dewaxed clear liquid vegetable oil having excellent refrigerator clarity. The method comprises slowly tempering the oil at 25° ...	04/29/1980
4194956	Method for dewaxing high-resistivity oils A method for removing waxes from high-resistivity oils free of significant amounts of dispersed water by crystallizing said waxes and then passing the oil through interstitial spaces defined within a mass of substantially spherical ceramic beads of high e...	03/25/1980
4190510	Process for the electrophoretic breaking of emulsions A process for the electrophoretic breaking of electrically conductive emulsions of electrical conductivity greater than 2,000 μMhos is described which process comprises adjusting the conductivity of the emulsion so that it is in the range of 0.1 to 2,000...	02/26/1980
4155924	Quality improvement process for organic liquid A process for the quality improvement of a nonpetroleum organic liquid (fats, animal and vegetable oils) containing color bodies, moisture and alkali soaps as impurities. The organic liquid is subjected to (1) a refining step using an aqueous alkali reage...	05/22/1979

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Class 204/573 - Resolving emulsion or dispersion