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8123913 |
Process for separating diisopropylbenzene (DIPB) and triisoproplybenzene (TIPB) from a feed comprising DIPB, TIBP, and polyalkylate heavies
Processes and apparatuses for separating diisopropylbenzene (DIPB) and triisopropylbenzene (TIPB) from a feed including DIPB, TIPB, and polyalkylate heavies are disclosed. The disclosed processes...
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8062482 |
Acetaldehyde removal from methyl acetate by distillation at elevated pressure
A method for removing acetaldehyde from a mixture of methyl acetate, methanol and acetaldehyde includes: (a) feeding the mixture of methyl acetate, methanol and acetaldehyde to a distillation...
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8034217 |
Liquid condensation system
A liquid condensation system heats a liquid raw material under a decompressed circumstance and evaporates a volatile component from a liquid surface to condense the liquid raw material. Therefore,...
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8016977 |
Dry pond water evaporation system and method of evaporating water
Dry pond water evaporation systems and methods are used to evaporate large quantities of water from industrial waste water sources, such as water produced by oil and gas wells. Dry pond systems...
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8002953 |
Low-energy extractive distillation process for dehydration of aqueous ethanol
An energy-efficient extractive distillation process for producing anhydrous ethanol from aqueous/ethanol feeds containing any range of ethanol employs an extractive distillation column (EDC) that...
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7981255 |
Method for producing (meth)acrylic acid and (meth)acrylic esters
There is provided a method for rectifying a vinyl compound liquor. The method includes the steps of a) providing a rectification column operated at a temperature and pressure and b) feeding the...
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7955476 |
Multiple application purification and recycling device
A multiple application recycling and purification device has a coaxial core that is horizontally oriented, non-rotating, cylindrical distillation chamber. The enhanced, completely coaxial...
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7931782 |
Method for recovering a liquid medium and system for recover a liquid medium
A method of recovering a liquid medium from a mixture containing the liquid medium, the method including: (a) blowing a first gas into the mixture containing the liquid medium to vaporize the...
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7846304 |
Process for purification of 2-chloro-5-chloromethyl-1,3-thiazole
The present invention provides a process for purifying 2-chloro-5-chloromethyl-1,3-thiazole represented by the formula (I): characterized in that a crude 2-chloro-5-chloromethyl-1,3-thiazole...
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7811420 |
Isothermal gas-free water distillation
A method of and apparatus is disclosed for water desalination including steps of transferring water vapor from salt-water in a vaporization zone 7, via a water vapor transfer zone 12, to a...
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7767170 |
Cracking hydrocarbon feedstock containing resid utilizing partial condensation of vapor phase from vapor/liquid separation to mitigate fouling in a flash/separation vessel
A process is provided for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form...
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7754053 |
Distillation of ionic liquids
The invention relates to a process for the distillation of ionic liquids, in which a pressure not higher than ambient pressure is set in a first step and the ionic liquid is heated to a temperature...
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7695594 |
Method for separating volatile components by dilutive distillation
A distillation process for separating a target component from a mixture containing a solvent and the target includes the steps of flashing off a vapor mixture of said solvent and said target in an...
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7691239 |
Distillation systems
A differential vapor pressure (DYP) cell is disposed in a divided wall column that receives a feed comprising a first, second, and third component. A separation section on the feed side of the...
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7641772 |
Distiller with pressure-difference maintenance
A distillation unit (10) employs a fluid circuit (FIG. 8) in which a counterflow heat exchanger (102, 104, 106, 108, 110) transfers heat from condensate and concentrate to feed liquid to be...
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7628893 |
Apparatus and method for separation
A method and an apparatus is provided for the separation of liquid-liquid and liquid-solids compositions by flash evaporation in a heated vacuum chamber. The compositions are injected through an...
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7556716 |
Method for recording the boiling curve of liquids and device for carrying out the method
Described is a method for recording the boiling curve of liquids, in particular petroleum products and/or solvents, in which a sample amount of the liquid to be analyzed is evaporated and...
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7557257 |
Method for the separation of a crude C4 cut
A process for fractionating a crude C4 fraction comprising butanes, butenes, 1,3-butadiene and small amounts of other hydrocarbons including C4-acetylenes, by extractive distillation using a...
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7547378 |
Method for the purification of dimethylacetamide (DMAc)
The invention relates to a process for distillatively purifying crude dimethylacetamide (crude DMAc) comprising DMAc, low boilers and high boilers 5 by removing the low boilers and the high boilers...
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7531066 |
Method for the purification of acrolein
A process for purifying an aqueous solution to obtain purified gaseous acrolein by introducing the aqueous solution into a distillation column equipped at its base with at least one boiler and at...
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7497931 |
Distillative preparation of IPDA having a high cis/trans isomer ratio
The invention relates to a process for recovering 3-aminomethyl-3,5,5-trim-ethylcyclohexylamine (isophoronediamine, IPDA) having a fractionally distilled cis/trans isomer ratio of at least 73/27....
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7465376 |
Method and device for treating liquids
The invention provides for the removal of impurities from treatment fluid including a base liquid and a variety of impurities contained in the base liquid by conveying the treatment fluid to at...
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7435317 |
Desalination of ocean water
An improved distillation of water. involves distilling significant quantities of water at temperatures well below the boiling point. During distillation, a compound is taken from a liquid-phase to...
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7429312 |
Method for processing multi-component liquid mixtures and device for carrying out said method
The present group of inventions relates to processing of multi-component liquid mixtures (MCLM) employing reforming process, preferably for vacuum distillation of hydrocarbon mixtures and in...
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7425247 |
Method for producing an aqueous solution hydroxylamine
This invention relates to a method for producing an aqueous solution of free hydroxylamine (HA) by simultaneous countercurrent treatment of a HA salt with ammonia or ammonia water, then separating...
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7393436 |
Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers
A thermal separating process for removing a stream containing enriched (meth)acrylic monomers from a mixture containing (meth)acrylic monomers, in which the liquid phases retained in the separating...
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7390380 |
Processing of shipboard wastewater
Incoming wastewater is preheated in a heat exchanger before delivery to a flash chamber through an orifice for flashing into water vapor rising into an upper section of the flash chamber which also...
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7347918 |
Energy efficient evaporation system
An evaporation system uses the weight of condensed liquid as an energy source. An inlet feed is introduced into an enclosure through an inlet. The inlet feed is vaporized in an evaporation region...
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7332057 |
Method of vaporizing liquids by microwave heating
This invention is directed to a method for vaporizing a liquid by slowly evaporating the liquid from a liquid phase to a vapor phase below the boiling point of the liquid; and applying an effective...
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7329330 |
Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone
A process for working up by distillation the crude products obtained in the process according to DE-A 196 07 954 and containing 1,6-hexanediol (HDO), 1,5-pentanediol (PDO) or caprolactone (CLO) in...
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7276139 |
Method for concentrating solution
An low concentration dope is fed through a nozzle into a concentrating apparatus, and flash evaporation of the low concentration dope is performed at an end of the nozzle. The low concentration...
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7267746 |
Dividing wall distillation column control apparatus
A control apparatus and control method for controlling the separation in a dividing wall distillation column of at least two feeds into at least three products is disclosed. The apparatus uses a...
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7258766 |
Method for collecting acrylic acid
A method for collecting acrylic acid is provided, which includes the step of collecting acrylic acid using an aqueous medium from a reaction gas containing acrylic acid obtained by catalytic...
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7255777 |
Distillation system
Improved HETP is obtained in the operation of a distillation column containing trays with a packing of a porous container containing a particulate material intimately associated with a resilient...
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7241928 |
Process for the manufacture of halocarbons and selected compounds and azeotropes with HF
A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR1R2CBR3R4 (where A, B, R1, R2, R3, and R4 are as defined in the specification) which involves...
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7226527 |
Method for recovering crude 1,3-butadiene by extractive distillation from a C4 cut
A process for recovering crude 1,3-butadiene from a C4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the...
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7169267 |
Method and device for carrying out the distillative separation of C5+ cuts
A process is proposed for the separation of C5+ cuts by distillation into a low-boiler (A), a medium-boiler (B) and a high-boiler fraction (C) in one or more dividing-wall columns (TK), in which a...
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7163606 |
Process for recovering methylene chloride
A system for recovering methylene chloride from an aqueous waste stream is disclosed. The system includes a distillation unit, at least one heat transfer unit, receptacles for methylene chloride...
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7147757 |
Method for separating an azepine derivative out of a mixture containing an amine an azepine derivative
The invention relates to a method for separating by distillation a portion or the entirety of an azeptine derivative (III), which is selected from the group consisting of aminohexylidene imine,...
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7132038 |
Method and device for obtaining 1,3 pure butadiene from 1,3 raw butadiene by distillation
A process for obtaining pure 1,3-butadiene from crude 1,3-butadiene by distillation is carried out in a dividing wall column in which a dividing wall is located in the longitudinal direction of the...
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7128814 |
Process for separating 2-butanol from tert-butanol/water mixtures
The present invention relates to a process for separating 2-butanol from tert-butanol/water by adding of tert-butanol such that the water concentration lowers to less than the limit concentration...
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7125474 |
Process for removing 2-butanol from tert-butanol/water mixtures
The invention relates to a process for separating 2-butanol from an industrial mixture which includes 2-butanol, tert-butanol and water by separating water from the industrial mixture by...
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7048835 |
System and method for acetic acid recovery during terephthalic acid production
A distillation system and method for recovering acetic acid from a feed stream containing acetic acid and water stream generated during terephthalic acid production. The invention includes a...
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7041198 |
Distillation system
A distillation system is provided having an evaporation conduit and a condensing conduit connected by a transfer system for transferring distillate vapour from the evaporation conduit to the...
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7001490 |
Purification of ammonia by distillation
Crude ammonia is separated into a low boiler fraction, a high boiler fraction and an intermediate-boiling pure fraction by continuous fractional distillation in a distillation apparatus configured...
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6982026 |
Azeotropic distillation process for producing organic acids or organic acid amides
Disclosed herein are methods for the recovery of at least one of an organic acid or an organic acid amide, such as a heat stable lactic acid or lactamide, from a feed stream which contains the...
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6946060 |
Purification of N,N-dimethylacetamide
A method to purify N,N-dimethylacetamide (DMAc) from an aqueous solution containing acetic acid as a contaminant. Two fractional distillation columns are arranged in a series. The solution...
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6936140 |
Water distillation system
A distillation system is provided for recovering water from sea water and other polluted water source. The system has a heat engine embodying Carnot cycle and a Rankine cycle formed by heat...
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6926810 |
Process for obtaining an organic acid from an organic acid ammonium salt, an organic acid amide, or an alkylamine organic acid complex
Disclosed herein are methods for the recovery of an organic acid, such as a heat stable lactic acid, from a feed stream which contains at least one of an organic acid amide, an organic acid...
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6926809 |
Device and process for the purification of cyanuric chloride
The present invention relates to a device and method for the production of cyanuric chloride. The device has three units for the production, purification and isolation of cyanuric chloride, the...
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