U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 203/29 - Including step of adding catalyst or reacting material


Subclass of Class 203 - Distillation: processes, separatory
Definition: Processes directed to adding a catalyst or a material which
No. of patents: 207
Last issue date: 07/26/2011


1            
NumberTitleIssue Date
7985323Purification process
Purification process for the preparation of the allylamine pharmaceutical terbinafine of formula I in free base form or acid addition salt form, by distilling crude terbinafine base, preferably by short path distillation, e...
07/26/2011
7959766Method for obtaining cyclododecatriene by evaporation
Process for recovering cyclododecatriene (CDT) from a solution containing CDT and high boilers such as deactivated catalyst and polymers, which includes feeding the solution into a preheater and heating it, subsequently depressurizing it through a downstream pressur...
06/14/2011
7879198Processes for the purification of trichlorosilane and silicon tetrachloride
The present disclosure relates to processes and systems for purifying technical grade trichlorosilane and/or technical grade silicon tetrachloride into electronic grade trichlorosilane and/or electronic grade silicon tetrachloride. ...
02/01/2011
7550064Method for continuously operated pure distillation of oxiranes, especially propylene oxide
The invention relates to a continuously operated process for the purification by distillation of the oxirane formed in the oxirane synthesis by reaction of a hydroperoxide with an organic compound, wherein the crude oxirane is separated in a dividing wall column int...
06/23/2009
7527712Method for the continuous purification by distillation of the solvent methanol, used in the synthesis of propylene oxide
Process for the continuously operated purification by distillation of the methanol used as solvent in the synthesis of propylene oxide by reaction of a hydroperoxide with propylene, with the methoxypropanols being separated off simultaneously, wherein the solvent mi...
05/05/2009
7416645Continuous process for recovering acetone from a waste stream resulting from acetone purification
The present invention provides a continuous process for recovering acetone from a waste stream from an acetone purification stage. The waste stream contains mesityl oxide and optionally acetone. The process for recovering acetone includes separating the waste stream...
08/26/2008
7410555Process and apparatus for catalytic distillations
A process for reacting a first component with itself or a second component to produce a third component in which a first material comprising a first component or said first component and a second component is fed to divided wall column having a catalytic distillatio...
08/12/2008
7384519Process for the purification of pharmaceutical grade HFC-134a and polymer grade HCFC-22
A method for the purification of pharmaceutical grade 1,1,1,2-tetrafluoroethane (HFC-134a) and polymer grade chlorodifluoromethane (HCFC-22) by contacting a mixture containing 1,1,1,2-tetrafluoroethane or chlorodifluoromethane and methyl chloride with a zeoli...
06/10/2008
7358388Method for the purification of isocyanates
Isocyanates are prepared by a process in which a product stream from the isocyanate synthesis is purified. ...
04/15/2008
7355087Production of 1-alkenes from mixed olefin streams using catalytic distillation
A catalytic distillation process for isomerizing and separating 1-alkenes from a mixed alkene stream. The process comprises contacting a mixed alkene stream comprising the 1-alkene and homologs thereof with a supported isomerization catalyst under isomerization/dist...
04/08/2008
7351327Process for the selective desulfurization of a mid range gasoline cut
A process for concurrently fractionating and treating a full range naphtha stream. The full boiling range naphtha stream is first subjected to simultaneous thioetherification and splitting into a light boiling range naphtha, an intermediate boiling range naphtha and...
04/01/2008
7342141Process for the preparation of alkanediol
The invention provides a process for the preparation of alkanediol comprising the steps: (i) contacting alkylene oxide with carbon dioxide in the presence of a carbonation catalyst to obtain a reaction mixture containing alkylene c...
03/11/2008
7338681Process to prepare a premium formulated fried egg
The present invention relates to the formulation and process for preparation of a fried egg product which may be frozen for future heating within a microwave or other oven for consumption by an individual. Various ingredients are added and mixed to each of the liqui...
03/04/2008
7320745Energy efficient method for exothermic reactions
An energy efficient process scheme for a highly exothermic reaction-distillation system in which the reactor is external to the distillation column and the feed to the reactor is a mixture of at least one liquid product stream from the distillation column with or wi...
01/22/2008
7319176Selective hydrogenation of acetylenes
A process for removing acetylenic compounds using unsulfided metallic nickel or unsulfided metallic nickel modified with metallic Mo, Re, Bi or mixtures in which the catalyst is used alone or is used in combination with other acetylenic selective catalysts. The unsu...
01/15/2008
7294240Method for producing (meth)acrylic acid esters
Basic (meth)acrylates IV are prepared by transesterification of alkyl (meth)acrylates I in the presence of a catalyst and working-up of the reaction mixture by distillation, by a process in which a gas or gas mixture which is inert under the reaction conditions is p...
11/13/2007
7288279Formulated fried egg product
The present invention relates to the formulation and process for preparation of a fried egg product which may be frozen for future heating within a microwave or other oven for consumption by an individual. Various ingredients are added and mixed to each of the liqui...
10/30/2007
7282119Process and apparatus for the isolation of pure, or substantially pure, organometallic compounds
A process and apparatus to enable the continuous isolation of an organometallic compound, such as trimethylindium from a liquid feedstock. The liquid feedstock is delivered to a distillation column having two heating zones to effect dissociation of the feed stock th...
10/16/2007
7282120UV-activated chlorination process
A method of producing alkanes containing chlorine by addition of chlorine to C—C double bonds or C—C triple bonds or by exchange of hydrogen for chlorine by contacting the starting compound in the gas or liquid phase with elemental chlorine and irradiating the r...
10/16/2007
7273957Process for the production of gasoline stocks
A process for the production of gasoline stocks wherein lower molecular weight olefins are first oligomerized and the oligomers then hydrogenated. In the first instance the oligomerization is carried out in a single pass fixed bed boiling point reactor. The oligomer...
09/25/2007
7258766Method 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 vapor-phase oxidation of propane, propylene, and/or acrolein, the step bein...
08/21/2007
7255777Distillation 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 component having at least 50 volume % open space, preferably at least 7...
08/14/2007
7241469Formulation and process to prepare a pre-formed filing unit
The present process relates to a formulation for a food product and preparation of a pre-formed filling unit for the provision of a consumable food product containing eggs, which may be refrigerated and/or frozen for future heating within a microwave oven for consum...
07/10/2007
7214400Flavor enhancing oils
Disclosed are flavor enhancing oils comprising at least one edible liquid oil and at least one water soluble flavor enhancer. The water soluble flavor enhancer is uniformly dispersed throughout the edible liquid oil. Delivery of water soluble flavor enhancers via a ...
05/08/2007
7182840Method and device for exploiting heat resulting from the production of 1,2-dichloroethane
The invention relates to a method and a device for the optimal use of reaction heat resulting from the production of 1,2-dichloroethane from ethene and chlorine. The aim of the invention is achieved by extracting reaction heat liberated during the reaction of chlori...
02/27/2007
7183449Process for the treatment of the by-products from a reaction for the production of organic compounds
Process for the treatment of by-products from a reaction for the production of organic compounds comprising a stage of evaporation of a liquid phase comprising heavy by-products on a surface, in order to form a concentrated phase comprising the bulk of the heavy by-...
02/27/2007
7179388Method for removing formic acid from aqueous solutions
Formic acid is at least partly removed from an aqueous solution comprising formic acid, cyclohexanone and cyclohexanol by decomposition over certain decomposition catalysts. The method is preferably used for processing reaction products from the oxidation of ...
02/20/2007
7175754Process for the production of low benzene gasoline
A process for the production of low benzene content gasoline is disclosed wherein a full boiling range naphtha is fractionated to produce a light naphtha, a medium naphtha and a heavy naphtha. The benzene is contained in the medium naphtha and this stream is subject...
02/13/2007
7169268Color stabilization of amines
The present invention concerns a process for providing tertiary amine products which are color-stable, and have a greatly reduced tendency to take on color during their storage. According to the invention, an ethyleneamine derivative is added to the distillation pot...
01/30/2007
7160524Process and apparatus for the production of butylacetate and isobutylacetate
The invention relates to an apparatus for the production of butylacetate by esterification of acetic acid with butanol in the presence of a solid acidic catalyst in which distillatory separation of components runs simultaneously with esterification. Thus, acetic aci...
01/09/2007
7125484Downflow process for hydrotreating naphtha
A process for the treatment of light naphtha hydrocarbon streams is disclosed wherein the mercaptans contained therein are reacted with diolefins simultaneous with fractionation into a light stream and a heavy stream. The heavy stream is then simultaneously treated ...
10/24/2006
7118653Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column
Process for the purification of toluenediisocyanate from a crude distillation feed which includes toluenediisocyanate, an organic solvent and less than 2% by weight phosgene by separating the crude distillation feed in a dividing-wall distillation column into at lea...
10/10/2006
7108770Process for the purification of toluene diisocyanate incorporating a dividing-wall distillation column for the final purification
Toluene diisocyanate is recovered from a crude distillation feed containing less than 2% by weight of phosgene by (a) fractionating the crude distillation feed containing less than 2% by weight of phosgene to remove the solvent and optionally the reaction res...
09/19/2006
7087803Method for the recovery of perfluorinated sulphonic acid
Method for the recovery of a perfluorinated sulphonic acid from a viscous organic residue by aqueous extraction of the acid from the residue in presence of a solvent containing aromatic compounds. ...
08/08/2006
7074304Process for purifying alicyclic alcohols
A process for purifying alicyclic alcohols by distillation, wherein the alicyclic alcohols are distilled in the presence of from 1 to 550 ppm of acidic compounds. ...
07/11/2006
7060165Processes for purification and production of fluorocarbons
The present invention involves processes that utilize an olefinic compound, in particular, hexafluoropropene (HFP) or chlorotrifluoroethene (CFC-1113) as extracting agents in the purification of pentafluoroethane (HFC-125). These processes can utilize recovered HFP ...
06/13/2006
7060232Polyfunctional sub-assembly for contact, material distribution and heat and/or material exchange of at least one gas phase and at least one liquid phase
A sub-assembly is described that ensures contact, material distribution and heat and/or material exchange of at least one gas phase, at least a portion of which is hydrogen, and at least one liquid phase, for a vessel containing at least one bed of granular solid, s...
06/13/2006
7052656Column for carrying out an isotope exchange between a liquid substance and a gaseous substance
The column is provided for carrying out an isotope exchange (EM) between a liquid substance (L) and a gaseous substance (G) using a catalytic reaction (EK). In this reaction the isotope exchange between molecules of the vaporized liquid substance (V) and molecules o...
05/30/2006
7045480Treatment of a titanium tetrachloride-containing waste stream
The invention relates to a process to increase the amount of TiCI4 that is retrieved from a waste stream comprising one or more titanium (halo) (alk) oxides while also reducing the quantity and/or hazard of the resulting waste. Valuable solvents/diluents ...
05/16/2006
7041199Process and device for hydrolytically obtaining a carboxylic acid alcohol from the corresponding carboxylate
A process and a device for the catalytic hydrolysis of a carboxylate, e.g., methyl acetate, ethyl acetate, i- or n-propyl acetate, i- or n-butyl acetate, allyl acetate and methyl formate, into the corresponding carboxylic acid and alcohol, by a combination of a pre-...
05/09/2006
1            
 
Sign InRegister
Username  
Password   
forgot password?