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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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....
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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...
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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.
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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...
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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...
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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...
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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....
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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,...
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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...
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3766017 |
SYNTHETIC SOLVENT STILL
An Apparatus for the continuous distillation and recovery of cleaning fluid from a source of contaminated fluid has a chamber, a still within said chamber and a means to prevent "boil over" of the...
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3763021 |
DISTILLATION PROCESS OF MONOMERS WITH THE ADDITION OF AN ANTIFOAM COMPOSITION
An antifoam composition is disclosed which consists essentially of (1) 1 to 20 percent by weight of a silicone-glycol copolymer, (2) 65 to 98 percent by weight of a propylene glycol, and (3) 1 to...
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3676307 |
PERCOLATOR DISTILLATION SYSTEM
A system is disclosed wherein a liquid solvent, susceptible of foaming, is heated within a confined volume and thereby raised to a high pressure, causing same to rise through a vertical stand pipe...
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3506543 |
URINE RECOVERY PROCESS BY THERMOELECTRIC DISTILLATION AND FILTRATION
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3467581 |
METHOD FOR IMPROVING DISTILLATION EFFICIENCY OF AN AQUEOUS MIXTURE BY ADDITION OF A SILICON-CONTAINING MATERIAL
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3458567 |
USE OF GLYCERIN AS AN ANTIFOAM AGENT
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3456428 |
REMOVAL OF BUBBLES FROM ADIPIC ACID-NITROGEN VAPOR
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3417001 |
Plural stage distillation process and system with foam control
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3409510 |
Process for distilling ethyl alcohol by the addition of a blend of siloxanes
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3355366 |
Process for inhibiting foaming of hexachlorobutadiene-1, 3 by addition of diatomaceous earth
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3354051 |
Apparatus for preventing foaming in a fractionator
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3347019 |
Method of and apparatus for drying a fluid stream and reconcentrating the absorbent
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3306341 |
Falling film evaporator for stripping latex solutions
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3282801 |
Extractive distillation of tetrafluoroethylene with an oxygenated hydrocarbon
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3264365 |
Foam control in separation of hydrocarbons
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3249566 |
Collapsing of diene latex cement foam
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3238144 |
Sonic foam suppressor
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