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Class 203/95 - INCLUDING ADDITION OF WATER OR STEAM


Subclass of Class 203 - Distillation: processes, separatory
Definition: Processes directed to adding water or steam to the distillation
No. of patents: 101
Last issue date: 10/28/2008


1      
NumberTitleIssue Date
7442348Sulfur-bearing residue treatment system
A sulfur-bearing residue treatment system is provided for the recovery of valuable organic components and the reduction of capital costs and operating costs. The treatment system involves the use of a stripping vessel in conjunction with a heating apparatus. All ele...
10/28/2008
7435317Desalination 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 a gas-phase and then condensed to the liquid-phase again to get a pur...
10/14/2008
7425247Method 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 the HA by distillation and reconcentrating the aqueous HA solution in...
09/16/2008
7416644Method and device for stripping ammonia from liquids
The present invention provides a method and a system for stripping volatile compounds such as ammonia from liquids. Part of the ammonia is stripped from the liquid in a system having a shunt through which liquid such as e.g. fermented biomass can be diverted in the ...
08/26/2008
7364668Process for producing an amino composition
The present invention provides a process for producing an amino composition by addition reaction between a polyamine and an unsaturated hydrocarbon compound in the presence of a strongly basic alkali metal catalyst to obtain an amino composition containing not more ...
04/29/2008
7358413Process for reducing fouling from flash/separation apparatus during cracking of hydrocarbon feedstocks
Hydrocarbon feedstock containing resid is cracked by a process comprising: (a) heating the hydrocarbon feedstock; (b) mixing the heated hydrocarbon feedstock with steam and optionally water to form a mixture stream; (c) introducing the mixture stream to a flash/sepa...
04/15/2008
7285697Reduction of total sulfur in crude and condensate cracking
A process for cracking hydrocarbon feedstock comprising at least one sulfur-containing compound comprising: heating the feedstock and a peroxide-containing compound, mixing the heated feedstock and peroxide-containing compound with a fluid and/or a primary dilution ...
10/23/2007
7247765Cracking 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 a mixture, optionally further heating the mixture, flashing the mixtu...
07/24/2007
7244871Process and apparatus for removing coke formed during steam cracking of hydrocarbon feedstocks containing resids
A process for decoking of a process that cracks hydrocarbon feedstock containing resid and coke precursors, wherein steam is added to the feedstock to form a mixture which is thereafter separated into a vapor phase and a liquid phase by flashing in a flash/separatio...
07/17/2007
7235705Process for reducing vapor condensation in flash/separation apparatus overhead during steam cracking of hydrocarbon feedstocks
A process for reducing fouling during cracking of a hydrocarbon feedstock containing resid is provided which comprises: introducing a mixture stream of heated hydrocarbon feedstock mixed with steam to a flash/separation apparatus to form i) a vapor phase at its dew ...
06/26/2007
7220887Process and apparatus for cracking hydrocarbon feedstock containing resid
A process 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 a mixture, flashing the mixture to form a vapor phase and a liquid phase which co...
05/22/2007
7193123Process and apparatus for cracking hydrocarbon feedstock containing resid to improve vapor yield from vapor/liquid separation
A process 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 a mixture, flashing the mixture to form a vapor phase and a liquid phase which co...
03/20/2007
7060787Extraction of impurities from grafted polyolefins
A process for purifying grafted polyolefins by extraction is disclosed. The purified grafted polyolefins have improved color and adhesion properties. The extraction is performed with an azeotropic solvent that is strong enough to extract impurities but does not caus...
06/13/2006
6982026Azeotropic 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 organic acid and/or organic acid amide. The feed stream is mixed with at ...
01/03/2006
6926810Process 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 ammonium salt, or an alkylamine-organic acid complex. The feed stream is mix...
08/09/2005
6852199Method for separating pentenenitrile isomers
A process is provided for the distillative separation of pentene nitrile isomers which have a relative volatility alpha ranging from 1.0 to 1.3 in the pressure range from 1 to 500 kPa, wherein the distillation is carried out in the presence of a liquid diluent which...
02/08/2005
6844480Method of separating dimethyl ether from an olefin stream
This invention is directed to a method of removing dimethyl ether from an olefin stream. Dimethyl ether is removed from the olefin stream by first separating the olefin stream into a first stream comprising dimethyl ether and lighter boiling point compounds, and a s...
01/18/2005
6833057Pure ethylene oxide distillation process
In a process for purification of ethylene oxide by distillation an aqueous mixture comprising ethylene oxide, formaldehyde and at least 5% by weight of water is introduced via a feed into a distillation apparatus comprising at least one distillation column, the mixt...
12/21/2004
6787001Method for distilling (meth) acrylic acid solution
A method for distilling a raw material liquid containing (meth)acrylic acid substantially free from azeotropic solvents, collected with a collection agent from a mixed gas obtained by gas phase catalytic oxidation reactions which includes feeding to a distillation c...
09/07/2004
6613197Method for isolation of barely volatile organic compounds
A method and apparatus for isolation of a barely volatile organic compound in a sample suspected to contain the same, e.g. a dioxin, which includes continuously adding superheated steam and a volatile and hardly water-soluble/water-insoluble solvent to a ...
09/02/2003
6559248Process of removing contaminants from an olefin stream using extractive distillation
Disclosed is a method of purifying olefin containing oxygenate contaminants. The method incorporates the use of extractive distillation. Under the appropriate conditions, olefins containing very low levels of oxygenate contaminants can be recovered....
05/06/2003
6554967Method of refining dihydroxyaryl compound
A refined dihydroxyaryl compound, for example, catechol, having a high degree of purity and a very low metal content is produced by evaporating a starting dihydroxyaryl compound in a distillation column, condensing the vapor fraction in a condenser connec...
04/29/2003
6468399Process for isolating cyclopentane and/or cyclopentene
Cyclopentane and/or cyclopentene and, if desired, isopentane can be obtained by distillative separation from a pre-benzene fraction or a C5 fraction which has in each case being partially hydrogenated to remove acetylene compounds and diolefins...
10/22/2002
6436244Process for the elution of fluorinated emulsifiers
Fluorinated emulsifier acids bound to an anion exchanger resin can be eluted using a mixture of water, a compound of the formula M--X, in which M is an alkali metal or an alkylammonium ion, and X is hydroxyl, fluoride or chloride, and at least one organic...
08/20/2002
6358373Production of polyamides by reactive distillation
The preparation of polyamides, their oligomers or mixtures thereof, where appropriate with other reaction products, takes place by reacting amino nitrites (A) and, where appropriate, other polyamide-forming monomers and/or oligomers with water (D) in a re...
03/19/2002
6332949Method for upgrading used sulfuric acids
A process for concentrating spent sulphuric acids particularly sulphuric acids which arise during the nitration of hydrocarbons with nitric acid in the presence of sulphuric acid, wherein single- or multi-stage concentration is effected under vacuum....
12/25/2001
6306263Impurities separation by distillation
A distillation procedure is provided for the separation of impurities from organic materials such as glycols and glycol ethers whereby a liquid stripping component is interfaced into a distillation column with or below the organic material introduction, h...
10/23/2001
6143136Method and apparatus for physical and chemical separation and reaction
A method and apparatus for separating volatile from nonvolatile substances, separation of volatile substances, one from the other, and for performing various chemical reactions. In particular, an apparatus which performs these functions utilizing a combin...
11/07/2000
6086723Process 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
5902587Camomile oils having a high natural poly-ynes content and process for their production
Camomile oil having a high cis- and trans-spiroether content is produced in a process which includes steam distillation or aqueous distillation of fresh camomile or an extraction residue of camomile....
05/11/1999
5824196Decontamination of RPET by steam distillation
Organic contaminants are removed from RPET flakes by a process that includes steam-stripping the contaminants out from the matrix of the RPET flakes. In an alternative embodiment, the RPET flakes are first comminuted to prepare RPET particles, and the RPE...
10/20/1998
5738762Separating oil and water from emulsions containing toxic light ends
An improved process for separating oil and water from an emulsion containing toxic light ends by flashing the heated and pressurized emulsion, condensing and separating the vaporized water and light ends, recovering the light ends, and recycling the conde...
04/14/1998
5723433Sovent removal process
A method of removing solvents from a paste includes introducing a heated paste into a channel of a dryer under pressure selected so as to avoid flashing of any of the components of the paste. At the inlet of the channel, the pressure is dropped, resulting...
03/03/1998
5620567Process for the removal of aldehydes and acetals from industrially prepared acetic acid
A process for the removal of aldehydes and acetals from industrially prepared acetic acid, wherein the contaminated acetic acid is reacted in the presence of a Bronstedt acid and 0.05 to 1% by weight of water and, if required, of 3 to 10 equivalents, calc...
04/15/1997
5597454Process for producing urea
A urea production process combining lower pressure urea concentration and carbamate recovery steps into a single non-vacuum operation. Following high pressure stripping wherein a bulk of unreacted carbamate is recovered from the reaction effluent, remaini...
01/28/1997
5591311Process for purifying a 2,6-dialkylphenol
A process for purifying impure 2,6-diisopropylphenol (DIP) mixtures having lower and higher boiling phenolic impurities is described. The process involves washing the mixture with aqueous alkali metal hydroxide solution in an inert atmosphere and separati...
01/07/1997
5540818Process for the production of high purity methanesulphonyl fluoride at an improved yield
A process for producing methanesulfonyl fluoride involves reacting methanesulfonyl chloride, a metal fluoride and water to obtain a reaction product, subjecting the reaction product to distillation in the presence of water in an amount of 0.7 times or mor...
07/30/1996
5536376Method for production of 2-chloropyridine and 2,6-dichloropyridine
A method for producing 2-chloropyridine and 2,6-dichloropyridine by the steps of mixing vaporized chlorine and vaporized water to obtain dilute chlorine; introducing the dilute chlorine and vaporized pyridine into a reactor; and reacting the vaporized pyr...
07/16/1996
5522971Dry neutralization of olefinically reactive organic liquid phases
Pure, substantially neutral, low-volatile organic compounds including reactive double bonds are advantageously isolated from a liquid feedstock which contains said compounds in combination with acidic reaction components or auxiliary materials by (i) addi...
06/04/1996
5500098Process for regeneration of volatile acids
Volatile acids containing metal salt impurities, such as metal pickling solutions-are regenerated by a process in which the acid is subjected to sulfuric acid distillation. Resulting volatile acid vapor is condensed and recycled to the pickle tank, while ...
03/19/1996
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