Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7053241 | Acetic acid production methods incorporating at least one metal salt as a catalyst stabilizer Processes for the production of acetic acid by carbonylation of methanol, and reactive derivatives thereof, in a reaction mixture using a rhodium-based catalyst system with at least one metal salt catalyst stabilizer selected from the group of ruthenium salts, tin s... | 05/30/2006 |
| 6849763 | Process for preparing rac-bicalutamide and its intermediates The present invention relates to a new process for the synthesis of racemic and optically active bicalutamide starting from ethyl pyruvate and methyl methacrylate. The present invention discloses processes of preparing bicalutamide intermediates including ethyl-[2-{... | 02/01/2005 |
| 6617471 | Method 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 |
| 6613938 | Method for carbonylation of lower aliphatic alcohols using tin promoted platinum catalyst A vapor-phase carbonylation method for producing esters and carboxylic acids from reactants comprising lower alkyl alcohols, lower alkyl alcohol generating compositions and mixtures thereof. The method includes contacting the reactants and carbon monoxide... | 09/02/2003 |
| 6515172 | Process for the preparation of perfluorocarboxylic acids Process for the preparation of perfluorocarboxylic acids of the formula RF --COOH, salts thereof and esters thereof from perfluoroalkyl iodides of the formula RF '--I, in which RF and RF ' are cyclic, branched o... | 02/04/2003 |
| 6452058 | Oxidative halogenation of C1 hydrocarbons to halogenated C1 hydrocarbons and integrated processes related thereto An oxidative halogenation process involving contacting a reactant hydrocarbon selected from methane, a halogenated C1 hydrocarbon, or a mixture thereof with a source of halogen and, preferably, a source of oxygen in the presence of a rare earth... | 09/17/2002 |
| 6153792 | Carbonylation 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 |
| 6140535 | Iridium-catalyzed carbonylation process for the production of acetic acid A process as provided for producing an acetic acid process stream having less than 400 ppm propionic acid and less than 1500 ppm water. Methanol or a reactive derivative thereof and carbon monoxide is fed to a carbonylation reactor in which there is maint... | 10/31/2000 |
| 6114576 | Carbonylation process with integrated heat exchange A process for the production of a carboxylic acid in the presence of solid catalyst particles that uses the exothermic heat of reaction with high efficiency in recovering the carboxylic acid product is disclosed. This process uses indirect heat exchange t... | 09/05/2000 |
| 5990347 | Process for preparing a carboxylic acid A process for preparing a carboxylic acid having n+1 carbon atoms by contacting carbon monoxide with a liquid reaction composition comprising an alcohol of n carbon atoms or an ester derivative thereof; an iridium carbonylation catalyst and a hydrocarbyl ... | 11/23/1999 |
| 5932764 | Iridium-catalyzed carbonylation process for the production of a carboxylic acid A process for the production of a carboxylic acid having n+1 carbon atoms comprises (a) carbonylating with carbon monoxide in a first reaction zone at elevated temperature and pressure an alkyl alcohol having n carbon atoms and/or a reactive derivative th... | 08/03/1999 |
| 5883295 | Iridium catalyzed carbonylation process for the production of acetic acid A process for the production of acetic acid comprising carbonylating with carbon monoxide methanol and/or a reactive derivative thereof in the substantial absence of a metal promoter and/or ionic iodide co-promoter in a carbonylation reactor containing a ... | 03/16/1999 |
| 5883289 | Preparation of carboxylic acids or related esters by carbonylation in the presence of iridium A method for preparing carboxylic acids including (n+1) carbon atoms, or the related esters, by liquid phase carbonylation of an alcohol including (n) carbon atoms, in the presence of a uniform catalytic system based on at least one iridium compound and a... | 03/16/1999 |
| 5877347 | Iridium catalyzed carbonylation process for the production of acetic acid A process for the production of acetic acid comprises (1) continuously feeding methanol and/or a reactive derivative thereof and carbon monoxide to a carbonylation reactor containing a liquid reaction composition comprising an iridium carbonylation cataly... | 03/02/1999 |
| 5877348 | Iridium-catalyzed carbonylation process for the production of acetic acid A process for the production of acetic acid by carbonylating with carbon monoxide methanol and/or a reactive derivative thereof in a carbonylation reactor containing a liquid reaction composition comprising an iridium carbonylation catalyst, methyl iodide... | 03/02/1999 |
| 5874610 | Process for the recovery of a carbonylation product A process for the recovery of a carbonylation product from a liquid reaction composition of an iridium-catalysed carbonylation reaction of a carbonylatable reactant comprises subjecting the composition to a vaporization with or without the addition of hea... | 02/23/1999 |
| 5847204 | Process for producing an iridium solution and use of same as catalyst An iridium-based solution is prepared by contacting components in a liquid phase containing (a) a carbonylated iridium compound, (b) hydriodic acid, a precursor of such an acid, or mixture thereof, and (c) a solvent; under a total pressure of between 1 an... | 12/08/1998 |
| 5834622 | Process for the carbonylation of a carbonylatable reactant A process for the carbonylation of a carbonylatable reactant having a carbonylatable moiety having at least two carbon atoms and/or a reactive derivative thereof which process comprises contacting said carbonylatable reactant and/or a reactive derivative ... | 11/10/1998 |
| 5814193 | Process for the purification of a C2 to C4 carboxylic acid and/or anhydride having halide impurities A process for the purification of a C2 to C4 carboxylic acid and/or an anhydride thereof having halide impurities, which process comprises the steps of (a) exposing the impure acid and/or anhydride to electromagnetic radiation under ... | 09/29/1998 |
| 5808143 | Catalyst based on oxides of Fe, Co, Bi and Mo Catalysts of the formula I Aa Bb Ox !p Cc Dd Fee Cof Ei Fj Oy !q I, where A is bismuth, telluri... | 09/15/1998 |
| 5773642 | Process for the preparation of carboxylic acids or the corresponding esters in the presence of a soluble catalyst based on iridium and iodides Preparation of carboxylic acids or corresponding esters by reacting an alcohol with carbon monoxide in the presence of an iridium catalyst and a halogen promoter. The reaction involves a reaction mixture composed of more than 0% to 10% water, more than 0%... | 06/30/1998 |
| 5760279 | Process for the carbonylation of alkyl alcohols The use of manganese at a molar ratio of manganese:rhodium of (0.2 to 20):1 to stabilize the rhodium catalyst during the rhodium catalyzed carbonylation of alkyl alcohols and/or recovery of carbonylation product therefrom at low partial pressure of carbon... | 06/02/1998 |
| 5648527 | Saturated fluoroalkylamines and their derivatives, and mixtures thereof New saturated fluoroalkylamines and carboxyalkylbetaines and alkylsulfobetaines derived therefrom, and mixtures containing the new fluoroalkylamines and mixtures containing the new fluorobetaines are described. The saturated fluoroalkylamines conform to t... | 07/15/1997 |
| 5625094 | Rhodium/iridium catalyzed synthesis of carboxylic acids or esters thereof Process for the preparation of a carboxylic acid or ester thereof. The process includes reacting at least one alcohol, alkyl or aryl halide, ether or ester, with carbon monoxide, in the presence of a catalytically effective amount of at least one rhodium ... | 04/29/1997 |
| 5416237 | Process for the production of acetic acid In a process for the production of acetic acid by carbonylation of methanol in the presence of a rhodium carbonylation catalyst, methyl iodide and an iodide salt stabiliser the improvement resides in maintaining a finite concentration of water of up to ab... | 05/16/1995 |
| 5312969 | Linear dicarbonylation of difunctionalized butenes Difunctional butenes are linearly dicarbonylated into 3-hexene-1,6-dioic acid or alkyl diesters thereof, well suited for the ultimate production of, e.g., adipic acid, by reacting such difunctional butene with carbon monoxide and, if appropriate, an alcoh... | 05/17/1994 |
| 5214203 | Process for producing carboxylic acids Carboxylic acids are produced in the liquid phase carbonylation reaction from an alcohol or its derivative and carbon monoxide in the presence of a catalyst system containing a rhodium component and an alkyl halide and water, adding an iodide salt to the ... | 05/25/1993 |
| 5004567 | Process for producing fluorine-containing aliphatic carboxylic acids Process for producing fluorine-containing aliphatic carboxylic acids having the general formula of Y--Rf --Y' as defined herein by reaction of fluorine-containing aliphatic halogen compounds having the general formula of X--R4 --X' a... | 04/02/1991 |
| 5003104 | Carbonylation process and catalyst This invention involves a process for the carbonylation of a carbonylatable reactant, e.g., an alkyl ester, a dialkyl ether or mixtures thereof by reacting the same with carbon monoxide. The process comprises effecting the carbonylation in the presence of... | 03/26/1991 |
| 4981619 | Process for preparing alpha-hydroxy acids A process for preparing alpha-hydroxycarboxylic acids. An organic halide is reacted with carbon monoxide and a hydrogen donor compound, in the presence of a carbonylation catalyst and an inorganic base, at a temperature of at least 90° C.... | 01/01/1991 |
| 4855487 | Process for preparing fluorine-containing carboxylic acid ester An improved process for preparing a fluorine-containing carboxylic acid ester useful as an intermediate for producing a fluorine-containing carboxylic acid is disclosed. The process comprises reacting a fluorine-containing alkyl halide with carbon monoxid... | 08/08/1989 |
| 4820823 | Process of producing -keto acids In accordance with a process of the present invention, -keto acids of the general formula RCOCOOH wherein R is aryl, alkenyl or heterocyclic group, can be obtained through one-step carbonylation reaction of an organic halogenide of the general form... | 04/11/1989 |
| 4761499 | Carbonylation of vinyl dihalides High yields of olefinic esters and amides, and the like are derived from a process wherein vinyl dihalides are carbonylated in the presence of a palladium catalyst and a primary or secondary amine base or tertiary amine, depending on the desired product, ... | 08/02/1988 |
| 4738802 | Process for preparing alkyl -keto-carboxylic acids from alkyl halides A process for the production of an alkyl -keto-carboxylic acid of the general formula: ##STR1## wherein: R is a linear or branched alkyl radical having from 1 to about 20 carbon atoms which comprises reacting an alkyl halide of the formula: wh... | 04/19/1988 |
| 4733006 | Carbonylation process with an alkali metal acetate as catalyst stabilizer The present invention provides for an improved process wherein an olefin, an alcohol, or an ester, halide or ether derivative of said alcohol is reacted with carbon monoxide in a liquid phase in the presence of a catalyst system that contains (a) a rhodiu... | 03/22/1988 |
| 4713484 | Single phase carbonylation of aromatic halides to carboxylic acid salts A process for preparing carboxylic acid salts by the reaction of carbon monoxide with substituted or unsubstituted aromatic halides or an aliphatic organic halide. The process comprises the catalytic single phase carbonylation of the halide utilizing in a... | 12/15/1987 |
| 4642370 | Process for the production of carboxylic acid esters Carboxylic acid esters are produced by reacting (i) carbon monoxide, (ii) a compound of the formula M(OR)x wherein M is either boron, silicon, aluminum, titanium or zirconium, x is the valency of M and R is a hydrocarbyl group and (iii) a hydro... | 02/10/1987 |
| 4582929 | Method of recovering halide values from carbonylation reaction mixtures This invention is a process for the carbonylation of an organic halide to prepare a carbonyl-containing compound, and recovery of halogen values in a useful form which comprises (a) contacting an organic halide with carbon monoxide and an esterifying agen... | 04/15/1986 |
| 4544505 | Preparation of halo--keto-carboxylic acids Halo--keto-carboxylic acids are prepared by reacting a dihaloalkane in a liquid solvent medium with carbon monoxide at elevated temperature and pressure in the presence of a catalytic amount of a metal carbonyl compound and an alkali metal inorgani... | 10/01/1985 |
| 4473706 | Preparation of cyclic-keto-acids Cyclic-keto-acids of the general formula: ##STR1## wherein R is hydrogen or a monovalent alkyl radical which can be either straight chain or branched having from 1 to about 20 carbon atoms and X=1, 3, or 4, are prepared by reacting a functionalized 1... | 09/25/1984 |
