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Class 562/517 - Preparation by carbonylation


Subclass of Class 562 - Organic compounds -- part of the class 532-570 series
Definition: Processes wherein the acyclic carboxylic acid is produced
No. of patents: 169
Last issue date: 12/13/2011


1          
NumberTitleIssue Date
8076506Process for the reduction of aldehyde concentration in a target stream
A process for reducing the aldehyde concentration in a target stream of a carbonylation process is disclosed. More specifically, a process for reducing the aldehyde concentration in an internal process stream or feed stream of a carbonylation process is disclosed. I...
12/13/2011
7902397Method and apparatus for making acetic acid with improved productivity
An improved apparatus and method of producing acetic acid includes recovering product from the residue of a light ends column and feeding the acid so recovered forward in order to increase system productivity. Load on the light ends column is reduced and load on a d...
03/08/2011
7381838Preparation of tertiary carboxylic acids
Process for carrying out catalytic multiphase reactions in a tubular reactor, in which at least three reactants are present in three different phases, wherein the process is carried out in at least one tubular reactor, and the catalyst is present in a continuous pha...
06/03/2008
7368597Carbonylation process using metal-polydentate ligand catalysts
A process for the liquid phase carbonylation of an alcohol and/or a reactive derivative thereof in the presence of hydrogen in which there is employed a catalyst comprising rhodium of iridium coordinated with a polydentate ligand. ...
05/06/2008
7348454Process for the hydrocarboxylation of ethylenically unsaturated carboxylic acids
A process for the hydrocarboxylation of an ethylenically unsaturated carboxylic acid, by reacting it with carbon monoxide and a co-reactant selected from the group of water and carboxylic acids in the presence of a catalyst system including: (a) a source of palladiu...
03/25/2008
7335799Hydroxyl compounds and compositions for cholesterol management and related uses
The present invention relates to novel hydroxyl compounds, compositions comprising hydroxyl compounds, and methods useful for treating and preventing a variety of diseases and conditions such as, but not limited to aging, Alzheimer's Disease, cancer, cardiovascular ...
02/26/2008
7282475Compositions and methods employing zwitterionic detergent combinations
The present invention provides lysis reagents, containers, methods and kits relating to the extraction or the extraction and isolation of a cellular component from a host cell. More specifically, the invention provides combinations of zwitterionic compounds that may...
10/16/2007
7276626Carbonylation process using metal-tridentate ligand catalysts
A process for the production of a carboxylic acid and/or the alcohol ester of a carboxylic acid by carbonylating an alcohol and/or a reactive derivative thereof with carbon monoxide employing as the carbonylation catalyst, cobalt, rhodium or iridium coordinated with...
10/02/2007
7265242Process for the carbonylation of ethylenically or acetylenically unsaturated compounds
A process for the carbonylation of unsaturated compounds by contacting the unsaturated compound with carbon monoxide in the presence of a catalyst system comprising: (a) a source of palladium and/or platinum; and (...
09/04/2007
7253304Carbonylation process
Disclosed is a carbonylation process wherein a mixture of a dialkyl carbonate and halide compound is contacted with carbon monoxide in the presence of a metal selected from Group VIII of the Periodic Table to co-produce carbon dioxide and a carbonyl compound selecte...
08/07/2007
7227147Process for monitoring and controlling nitrating processes with the aid of an online spectrometer
A process for monitoring and/or controlling a nitrating process, having the following steps: measuring inline infrared spectra of nitric acid content in a reaction mixture stream downstream of the nitration reaction, preferably nea...
06/05/2007
7223883Removal of permanganate reducing compounds from methanol carbonylation process stream
An improvement of the methanol carbonylation process for manufacturing acetic acid is disclosed. Specifically disclosed is a method for removing permanganate reducing compounds (“PRC's”) from the condensed light ends overhead stream, including (a) distilling at ...
05/29/2007
7191037Method for controlling production process
A method for controlling production process by performing near-infrared absorptiometric analysis by simple procedures in an accurate manner, in which control of production process step can be realized at a high accuracy by simple operation based on the thereby obtai...
03/13/2007
7115791Method and apparatus for controlling effluent composition in oxygenates to olefins conversion
A process for controlling an oxygenates to olefin reactor is disclosed which comprises: contacting oxygenate-containing feedstock, e.g., methanol, in a reaction zone in the presence of a molecular sieve oxygenate to olefins conversion catalyst under conditions suffi...
10/03/2006
7115774Process for carbonylating alcohols, employing a catalyst based on rhodium or iridium in a non-aqueous ionic liquid, with efficient catalyst recycling
In a process for liquid phase carbonylation of alcohols by carbon monoxide, the carbonylation reaction is carried out in a reaction zone at a temperature of 50° C. to 150° C. at a pressure in the range 0.5 MPa to 20 MPa in the presence of at least one catalyst com...
10/03/2006
6916954Catalyst system and method for carbonylation
The invention relates to a catalyst system for carbonylating olefinically or acetylenically unsaturated compounds with carbon monoxide and a nucleophile compound, containing (a) palladium; (b) a phosphine and (c) a polymer containing nitrogen which is soluble in the...
07/12/2005
6916951Continuous carbonylation process
Disclosed is a continuous process wherein carbon monoxide, a carbonylatable reactant, and a halide in the gas phase are contacted with a non-volatile catalyst solution comprising an ionic liquid and a Group VIII metal to produce a carbonylation product in the gas ph...
07/12/2005
6858753Process for the preparation of carboxylic acids from aliphatic alcohols
The present invention provides an improved process for the production of carboxylic acids by the carbonylation of alcohol. The process involves contacting an alcohol with carbon monoxide in the presence of a nickel compound, a heterocyclic organic compound and an io...
02/22/2005
6784313Process for producing carboxylic acids
A process for producing a carboxylic acid having (n+1) carbon atoms, which includes carbonylating an alcohol having n carbon atoms, and/or an ester of the alcohol and the carboxylic acid in each alkyl group with carbon monoxide in the presence of a catalytic system ...
08/31/2004
6706912Process for the carbonylation of ethylenically unsaturated compounds
Process for the carbonylation of ethylenically unsaturated compounds having 3 or more carbon atoms by reaction with carbon monoxide and an hydroxyl group containing compound in the presence of a catalyst system. The catalyst system includes (a) a source of pa...
03/16/2004
6686500Process for the production of acetic acid
A process for the production of acetic acid by reacting carbon monoxide with methanol and/or a reactive derivative thereof in a liquid reaction composition comprising an iridium carbonylation catalyst, methyl iodide, methyl acetate, water and acetic acid ...
02/03/2004
6677480Process control in production of acetic acid via use of heavy phase density measurement
A process for monitoring and controlling reactor conditions during the production of acetic acid by the catalyzed carbonylation of methanol is provided. The process of the present invention comprises measuring the density of the heavy phase of the light e...
01/13/2004
6646154Method for carbonylation of lower alkyl alcohols using tungsten promoted group VIII catalyst
A vapor-phase carbonylation method for producing esters and carboxylic acids from reactants comprising lower alkyl alcohols, lower alkyl alcohol generating compounds, and mixtures thereof. The method includes contacting the reactants and carbon monoxide i...
11/11/2003
6642413Process for monitoring a continuous acetic acid and/or methyl acetate production
A continuous preparative process, including monitoring production, for acetic acid, methyl acetate or a mixture thereof, by carbonylation, in an industrial installation, of methanol or a carbonylatable derivative of methanol with carbon monoxide in a liqu...
11/04/2003
6617471Method for carbonylation of lower aliphatic alcohols using tin promoted iridium catalyst
A vapor-phase carbonylation method for producing esters and carboxylic acids from reactants comprising lower alkyl alcohols, lower alkyl alcohol generating compounds, and mixtures thereof. The method includes contacting the reactants and carbon monoxide i...
09/09/2003
6552221Process control for acetic acid manufacture
A method of real time process control in a reaction system for the production of acetic acid from the carbonylation of methanol. Reaction system samples are collected from columns and/or transfer lines downstream of a reactor vessel, and the concentration...
04/22/2003
6521783Processes for preparing oxygenates
This invention relates in part to a processes for the conversion of a feedstock stream comprising carbon monoxide and hydrogen to a product stream comprising at least one of an ester, acid, acid anhydride and mixtures thereof. This invention also relates ...
02/18/2003
6472558Process for the production of acetic acid
A process for the production of acetic acid by reacting carbon monoxide with methanol and/or a reactive derivative thereof in a liquid reaction composition comprising an iridium carbonylation catalyst, methyl iodide, methyl acetate, water and acetic acid ...
10/29/2002
6465680Process for preparing malonate derivatives or ଲ-keto esters from epoxide derivatives
A process for preparing a malonic acid monoester or ଲ-ketoester from an epoxide includes the steps of reacting an epoxide with carbon monoxide and an alcohol in the presence of a catalytic amount of a cobalt compound and at least one promoter to pro...
10/15/2002
6452043Carbonylation of lower alkyl alcohols and their derivatives using metals supported on carbonized polysulfonated divinylbenzene-styrene copolymers
A method for producing esters, carboxylic acids and mixtures thereof includes contacting, under carbonylation conditions, lower alkyl alcohols, ethers, lower alkyl alcohol derivatives and mixtures thereof and carbon monoxide with a catalyst having a catal...
09/17/2002
6420304Polymer-supported carbonylation catalyst and its use
The invention relates to a polymer-supported carbonylation catalyst and its use in a process for preparing organic carboxylic acid or anhydride having n+1 carbon atoms. The invention relates also to a process for preparing organic carboxylic acid or anhyd...
07/16/2002
6395927Method for preparing acetic acid and/or methyl acetate by isomerization and carbonylation
A method for preparing acetic acid and/or methyl acetate by simultaneous isomerization and carbonylation reactions. A reaction mixture is provided containing at least one reagent which provides formyl radicals and at least one further reagent which provid...
05/28/2002
6362366Manufacturing and process control methods
There is provided a process control method for the production of acetic acid by the catalyzed carbonylation of methanol and a process for the manufacture of acetic acid using the process control method. The process control method comprises measuring vario...
03/26/2002
6355837Vapor phase carbonylation process using group 4 metal promoted iridium catalyst
A method for producing esters and carboxylic acids from lower alkyl alcohols, ethers, esters and ester-alcohol reactant mixtures and includes the step of contacting a vaporous mixture of the reactants, carbon monoxide and a halide with a supported catalys...
03/12/2002
6355595Group 5 metal promoted iridium carbonylation catalyst
A solid supported catalyst suitable for the vapor phase carbonylation of lower aliphatic alcohols, ethers, ester, and ester-alcohol mixtures, and desirably, methanol, to produce acetic acid, methyl acetate and mixtures thereof. The solid supported catalys...
03/12/2002
6353132Vapor phase carbonylation process using group 5 metal promoted iridium catalyst
A method for producing esters and carboxylic acids from lower alkyl alcohols, ethers, esters and ester-alcohol reactant mixtures and includes the step of contacting a vaporous mixture of the reactants, carbon monoxide and a halide with a supported catalys...
03/05/2002
6323364Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile
The method of the present invention provides an improvement upon prior art methanol carbonylation methods which substantially reduces the production of carbonyl impurities. The production of carbonyl impurities, particularly acetaldehyde, crotonaldehyde, ...
11/27/2001
6268530Process to prepare 5-formylvaleric acid
Process to separate linear 5-formylvaleric acid from a mixture of 5- and 3- and 4-formylvaleric acids, wherein the separation is performed by fractional extraction with two immiscible solvents of which one solvent is an aqueous solvent and the other solve...
07/31/2001
6160163Method for the vapor-phase carbonylation of lower aliphatic alcohols using a supported platinum catalyst and halide promoter
A method for the vapor-phase carbonylation of lower alkyl alcohols to esters and optionally, carboxylic acids using a catalyst having a platinum on a solid support material as a first component and a vaporous halide as a second component. Desirably, the c...
12/12/2000
6153792Carbonylation process using a flash step with washing
A process for the production of a carboxylic acid in the presence of solid catalyst particles that employs a flash step with a liquid wash is disclosed. This process helps prevent the buildup of deposits of solid catalyst particles, attrited solid catalys...
11/28/2000
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