Class 202/198 - Dephlegmator

Subclass of Class 202 - Distillation: apparatus
Definition: The vapors from the column or still pass through a condenser
No. of patents: 25
Last issue date: 11/20/2007

Number	Title	Issue Date
7297237	Method and device for separation and concentration by evaporation of mixture with separation factor of approx. 1 By using a dephlegmator which conducts distillation concurrently with heat exchange within at least one distillation column, or a portion of one distillation column, of a distillation cascade, the quantity of liquid holdup within the distillation apparatus is reduce...	11/20/2007
6960295	Water kettle, and particle catcher/filter assembly for said kettle A water kettle having a receptacle (1) with an inner space (2) for receiving water (3) therein and with a pouring spout (4) for pouring water from the inner space (2). The water kettle is further provided with a particle catcher (	11/01/2005
5824194	Fractionator system for delayed coking process An improved coker fractionator system which permits withdrawing, from selected ports in the fractionator, streams of selected boiling point ranges for recovery of thermal energy and for altering the liquid vapor loading within the column for more efficien...	10/20/1998
5670026	In-service cleaning of columns A method of in-service cleaning an operating column by inserting into the column a lance through which a compatible liquid is dispensed at a pressure of at least about 5000 psig. Also disclosed is apparatus which comprises a column through which a fluid c...	09/23/1997
5512140	In-service cleaning of columns This invention discloses a method of in-service cleaning an operating column by inserting into the column a lance through which a compatible liquid is dispensed at a pressure of at least about 5000 psig. Also disclosed is apparatus which comprises a colum...	04/30/1996
5336376	Distillation column with vaporous sidestream removal In a distillation column with vaporous sidestream removal, the vaporous product removed is condensed in a condenser. The vapor pipe provided for the removal of product opens into a dip tank of which the upper end is connected to the condenser while its lo...	08/09/1994
5207065	Separation of gas mixtures The present invention provises a method and apparatus for separating a gas mixture. In accordance therewith, the gas mixture is rectified in a dephlegmator. The dephlegmator has first and second sets of heat exchange passages which are in a heat exchange ...	05/04/1993
5167773	Distillation tower and sidestream stripper therefor A distillation tower (1) has a plurality of liquid sidestream lines (5, 6, 7) and a multi-stage sidestream stripper (13) which includes a respective stripping section (14, 15, 16) for each sidestream line housed in a common, upright, cylindrical shell (28...	12/01/1992
4986884	Process for the production of monomeric ଱-cyanoacrylates A process for the production of monomeric ଱-cyanoacrylates by pryrolysis of poly-଱-cyanoacrylates and subsequent distillation of the resulting monomeric ଱-cyanoacrylates....	01/22/1991
4828660	Method and apparatus for the continuous on-site chemical reprocessing of ultrapure liquids A continuous process and apparatus for the repurification of ultrapure liquids. An oxidant solution comprising ultrapure sulfuric acid, peroxydisulfuric acid, and ultrapure water is continuously withdrawn from a process after use. The withdrawn oxidant is...	05/09/1989
4778566	Energy-saving circuit for continuously operated distillation units The invention consists of an energy-saving circuit for rectification columns in continuously operated distillation plants and various embodiments of this circuit. Both the total dephlemation heat and the total waste heat of the depleted solution stream ca...	10/18/1988
4743343	Method of regenerating alcohol-based antifreezing liquid This invention relates to a method of regenerating an alcohol-based antifreezing liquid, and more particularly to a method of concentrating and regenerating an alcohol-based antifreezing liquid diluted through water absorption by removing water therefrom....	05/10/1988
4714525	Process for separating high purity water A process for purifying impure water, e.g. heavy water, which provides for the removal of dissolved inorganic and organic contaminants by distillation of the water and washed vapor withdrawal, and optional chemical pretreatment of oxidazable matter....	12/22/1987
4680092	Process for degassing, dehydrating and precut separation in straight-run distillation of crude fatty acids The invention concerns a process for the degassing, dehydrating and lower boiling component separation during straight-run distillation of crude fatty acids. The crude fatty acids are degassed in the degassing stage at such temperatures and pressures in c...	07/14/1987
4575403	Apparatus for distilling phosphorus A continuous process for reducing the arsenic content of phosphorus is described in which the impure phosphorus is continually passed through a heat exchanger and heated to vaporize a portion of the phosphorus at a temperature not above 200° C., separati...	03/11/1986
4556456	Multi-vapor level vapor generating and recovery apparatus An apparatus for generating at least two vapor zones, one above the other, by vaporizing a fluid mixture having at least two compounds therein having different vaporizing temperatures. The apparatus includes a chamber with vaporizing means, and vapor cond...	12/03/1985
4543165	Product separation and recovery system A closed cycle recovery system and apparatus for continuously recovering residual products which have been washed or flushed from tank trucks, tank cars, and other transportation or storage containers while simultaneously separating and recovering the wat...	09/24/1985
4412887	Evaporation process with liquid entrainment separation An improved evaporation process for accomplishing the separation of a solution into its volatile and non-volatile components. The improvement over conventional evaporation, according to which the solution is fed to a calandria where it is heated and parti...	11/01/1983
4406745	Device for high speed production of aromatic essential oils from perfume-generating plants or parts thereof This invention relates to a method and a device for high-speed production of aromatic essential oils from perfume-generating plants. The device comprises at least one enclosure 1 provided with means 2 for crushing said plants into a slurry, heating means ...	09/27/1983
4347321	Method and apparatus for producing alcohol A method and apparatus particularly suitable for the production of alcohol from fermentable substances such as grain. In this method, mash cooking, fermentation, and boiling are carried out sequentially in a single vessel. Boiling produces a first vapor r...	08/31/1982
4331513	Apparatus for purifying a vaporizable liquid An apparatus for purifying impure vaporizable liquid, e.g. heavy water, which provides for the removal of dissolved inorganic solid contaminants from such liquid to produce a high purity liquid product....	05/25/1982
4308107	Distillation process and apparatus for its realization A method and apparatus for distillation wherein the heat of partial condensation and the heat of evaporation are incrementally utilized as produced thus guiding the gaseous phase of the distillation along the dew-point line of the enthalpy-concentration d...	12/29/1981
4279703	Apparatus for the distillation of weak ammonia liquor The fouling of ammonia stills which results from the clogging, particularly of the lower plates of the stills, with sludge and precipitates is eliminated by use of combined apparatus in which a calcium compound precipitation step followed by a clarificati...	07/21/1981
4104112	Method and apparatus for concentrating aqueous solutions Apparatus for concentrating an aqueous solution of higher boiling point organic antifreeze medium includes a casing having a first and second upright legs connected by a third inclined leg. The first leg is open at the upper end to provide an ambient air ...	08/01/1978
4033617	Process for the purification of ethylene oxide Crude ethylene oxide present in the dilute aqueous solution resulting from the extraction with an aqueous solvent of ethylene oxide from the gaseous stream obtained by catalytic oxidation of ethylene is purified by desorption, liquefaction, distillation i...	07/05/1977

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Class 202/198 - Dephlegmator