Class 203/20 - INCLUDING DEFOAMING OR INHIBITING FOAM

Subclass of Class 203 - Distillation: processes, separatory
Definition: Processes directed to defoaming or inhibiting the formation
No. of patents: 38
Last issue date: 09/06/2005

Number	Title	Issue Date
6939656	Method for producing polymerized toner Methods for producing a polymerized toners are provided, where, a dispersion including colored polymer particles obtained by polymerizing a polymerizable composition is treated stably in the process of reducing the remaining monomer, the resultant polymerized toners...	09/06/2005
6464838	Process for the recovery of compounds present in the heavy products after their preparation A process for the recovery of compounds present in a mixture containing residues of heavy products is provided. The process includes conducting a reaction and distillation to obtain the compounds and residues and macerating the residues before they can se...	10/15/2002
6379507	Process for producing methylal A process for producing methylal that involves feeding a liquid containing methanol, formaldehyde and water to an uppermost reactor of at least four solid acid catalyst-filled reactors which are each externally connected to an intermediate portion of a di...	04/30/2002
6254734	Barometric evaporation process and evaporator A process for the evaporation of an available warm or hot liquid under a vacuum by applying a pressure drop thereon initiating flash-down evaporation, and followed by further flash-down evaporation under an applied pressure gradient whereby the residual l...	07/03/2001
6086723	Process for cooling dispersions and liquids A process for deodorizing and subsequently cooling dispersions or liquids comprising a) passing steam through the dispersion or liquid to be cooled and held in a vessel (1), said dispersion or liquid being caused to foam up as a result, b) discharging the...	07/11/2000
6080320	Method and apparatus for removing foaming contaminants from hydrocarbon processing solvents A column of solvent containing foaming contaminants is provided. Gas is injected into the solvent in the column so as to generate foam in the column. Foam generation continues so as to push the foam up in the column, wherein much of the solvent that is in...	06/27/2000
5993608	Process for recovering processing liquids A process for recovering processing liquids such as gas-treating liquids wherein a feed mixture containing the processing liquid and components or impurities that are more volatile and less volatile than the processing liquid is initially heated in a firs...	11/30/1999
5922191	Foam control using a fluidized bed of particles A process for suppressing foam formation in a vessel includes the steps of feeding a liquid and a gas to a vessel at a liquid velocity and a gas velocity respectively; adding particles of a solid material to the liquid, the particles having a particle siz...	07/13/1999
5922190	Process for suppressing foam formation in a bubble column reactor A process for suppressing foam formation in a bubble column reactor includes the steps of feeding a liquid and a gas to a reactor at a liquid velocity and a gas velocity respectively; and adding particles of a solid material to the liquid, wherein the par...	07/13/1999
5800738	Methods for inhibiting foam in crude oils Methods for inhibiting foam in crude oil or its fractions undergoing processing are disclosed. Low molecular weight polyisobutylene, preferably of about 320 daltons, is added to the crude oil or fraction experiencing foaming....	09/01/1998
5756866	Process for obtaining separate streams of methanol and ethanol, n-propanol and isobutanol The process claimed enables three separate streams to be obtained, from mixtures containing methanol, ethanol, n-propanol, isobutanol, water and other both low- and high-boiling compounds, of which one is anhydrous basically consisting of methanol and eth...	05/26/1998
5750052	Foam control method Methods for controlling foam in hydrocarbon liquids within hydrocracking unit separator systems utilizing alkylphenolformaldehyde resin alkoxylates with a propylene oxide/ethylene oxide block copolymer having a molecular weight of from about 2000 to 6000 ...	05/12/1998
5667669	Methods for inhibiting foam Methods for inhibiting the carryover of foam in a delayed coker unit processing hydrocarbon liquids are disclosed. A non-silicone defoamer compound is added to the hydrocarbon until the foam height surpasses a predetermined value. A silicone defoamer comp...	09/16/1997
5662779	Portable water purification apparatus A water purification apparatus positionable on an existing dispenser has a valve control member positionable in the water plenum of the dispenser to control release of purified water from the apparatus to the dispenser. A feedwater tank receives supply wa...	09/02/1997
5632864	Splash shield for distillation unit A splash shield for the boiler of a distillation type water purification apparatus includes at least two grades of porous media which cooperatively inhibit bubble formation and splashing, thereby preventing transfer of contaminants from the boiler water t...	05/27/1997
5476573	Apparatus for defoaming and controlling aerobic culture fermentation An apparatus and method for defoaming aerobic fermentation cultures is provided, where the amount of liquid culture medium used is greater than that in conventional aerobic cultures (70% or more of the total capacity of the culture tank) without lowering ...	12/19/1995
5472637	Control of foam in hydrocarbon fluids A method and composition for foam control in non-aqueous systems utilizing polyisobutylene compounds. The method is especially well adapted for use in oil distillation units and coking of crude oil residues....	12/05/1995
5454979	Fluorosilicone antifoam A fluorosilicone antifoam having excellent and persistent anti foam activity against foaming in aqueous or organic solvent solutions in which a silicone surfactant or fluorosurfactant is dissolved. The fluorosilcione antifoam includes (A) (a) a fluorosili...	10/03/1995
5449440	Process for separating alcohols from mixtures of alcohols, water and other compounds From a mixture containing methanol, ethanol, n-propanol, isobutanol water and other high-boiling and low-boiling compounds, the claimed process enables three separate streams to be obtained, one an anhydrous stream of methanol or methanol and ethanol (I),...	09/12/1995
5389299	High temperature hydrocarbon defoamer composition and method Methods and compositions for controlling foam in high temperature hydrocarbons during processing animal oils, exemplified by mink oil, are added to the hydrocarbon to control foam....	02/14/1995
5332477	Method for reducing pressure drop in a packed column This invention relates to a method for decreasing the pressure drop in a column used for contacting at least one gaseous stream and at least one liquid stream, wherein a portion of the pressure drop across the column is caused by foam. The method comprise...	07/26/1994
5262013	Coolant recycling method and apparatus A coolant recycling apparatus has a boiler and condenser for distilling a glycol and water from a used coolant. The glycol and water are recombined in a mixing tank to form a mixture having a desired ratio of water to glycol, and an inhibitor is added to ...	11/16/1993
5236558	Method to recycle spent ethylene glycol A method to recycle spent ethylene glycol in a continuous process for the manufacture of polyethylene terephthalate in at least one reactor vessel which includes: a. condensing the overhead vapor of spent ethylene glycol, water and other byproducts from t...	08/17/1993
5169560	Control of foam in hydrocarbon fluids A method and composition for foam control in non-aqueous systems utilizing sulfonate or phosphinate compounds. The method is especially well adapted for use in oil distillation units and coking of crude oil residues....	12/08/1992
5139683	Method of organic solvent removal The invention provides a method of removing organic solvent from a solution containing an emulsifier capable of foaming. The pressure in a chamber, in which the solution is disposed, is reduced. The foaming condition of the solution in the chamber is dete...	08/18/1992
4877489	Electronic control and dosing system for desalinators An electronic control and dosing system for desalinators (10) has a baffle, disposed between the evaporation and condensation chambers, fitted with probes (70, 71) which detect the presence of liquid created by entrained bubbles, that pass through the hol...	10/31/1989
4762593	Distilling apparatus Distilling equipment comprising evaporation apparatus (2) including a boiling chamber (6) and equipment and conduits (46-59, 62, 63, 65-71) for supplying raw liquid to the boiling chamber at a predetermined level (43), a plurality of serial condensation s...	08/09/1988
4750975	Vapor/liquid contact column structure Vapor and liquid contact structure for distillation, fractionation, rectification, absorption, and the refining, in a column, of various liquid materials such as petroleum, chemical, and alcohol solutions. Provision is made for the inclusion of vertically...	06/14/1988
4612090	Water degasification and distillation apparatus Water degasification and distillation apparatus having a container for water to be degasified and distilled, a relatively small boiler adjoining said container and having a first conduit extending into the container so that a selected water level in the c...	09/16/1986
4473465	Eliminating foaming in hydrocarbon distillations A method for eliminating foam in hydrocarbon distillation systems where the foaming is caused by an ionic surface-active substance is involved. Foam is eliminated by the addition of an effective amount of a surfactant electrolytically opposite to the surf...	09/25/1984
4434142	Method for treatment of aluminum dross oxides There is disclosed a method for the treatment of aluminum dross oxides which contain aluminum metal, aluminum carbide, aluminum nitride and salts such as potassium and sodium chloride. The method comprises the thermal treatment of an aqueous suspension of...	02/28/1984
4329528	Method of defoaming crude hydrocarbon stocks with fluorosilicone compounds A method of defoaming crude hydrocarbon stocks comprising adding to the hydrocarbon stock at least 1 part per million of a fluorosilicone copolymer having from 20 to 70 mole percent of fluorosilicone siloxy units....	05/11/1982
4318782	Process for distilling ammoniacal solutions A process for distilling ammoniacal solutions is disclosed comprising the utilization of two distillation columns operating at different pressures, the ammoniacal solution to be distilled being sent--after being mixed with the ammoniacal vapors flowing fr...	03/09/1982
4217176	Evaporator A vapor compression distiller has a vertically oriented cylindrical tank and a heat exchanger having a plurality of groups of heat exchange tubes disposed one above the other. Internal baffling channels vapor through the groups of heat exchange tubes in a...	08/12/1980
4194952	Process for regenerating waste sulfuric acid In the regeneration of aqueous waste sulfuric acid by distilling off water often foam is formed which severely interferes with the work-up of the acid. This formation of foam is suppressed by adding alkylsulfonic and/or alkylarylsulfonic acids....	03/25/1980
4168211	Distillation apparatus and method A vapor compression type distillation unit is provided for distilling brackish water or seawater wherein high heat transfer rates are achieved in a vertical shell and tube type vaporizer while avoiding carry-over normally resulting from excessive foaming ...	09/18/1979
4083939	Use of tributoxyethylphosphate to control foam in the production of soda ash from trona Tributoxyethylphosphate is useful in controlling foam produced during the evaporative crystallization of calcined trona solutions. The chemical is effective at low concentrations, i.e. 1 to 30 ppm, and does not significantly alter the crystal habit of the...	04/11/1978
4045293	Water purification apparatus and method A water purification apparatus capable of treating water having impurities producing substantial foaming includes a boiler tank having a water inlet and heater, and a stack portion thereabove containing contact surface means and a heater for heating the c...	08/30/1977

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Class 203/20 - INCLUDING DEFOAMING OR INHIBITING FOAM