Class / Patent application number | Description | Number of patent applications / Date published |
568388000 | Aldehyde or ketone reactant | 23 |
20090112026 | Formation of hydroxycarbonyl compounds - Aldehyde and ketone reactants have been converted to hydroxyaldehydes, polyhydroxyaldehydes, hydroxyketones and/or polyhydroxyketones in aqueous liquid phase by an aldol condensation process where product carbon chain length was limited using specific dilute concentrations of soluble inorganic base. Reactions were reproducibly conducted at ambient pressure in a temperature range of −25° C. to 50° C. and completed in ten minutes or less following reactant addition. | 04-30-2009 |
20090253940 | Method and Apparatus for Producing Purified Methyl Isobutyl Ketone - This invention relates to a method of producing purified methyl isobutyl ketone (MIBK) comprising subjecting a feed stream containing MIBK and impurities to a first distillation procedure from which acetone is recovered. The bottom product of the first distillation procedure is fed to a liquid-liquid separator and an organic phase from the said liquid-liquid separator is fed to the top region of a second distillation column to produce an overhead product. The said overhead product is condensed and fed to the said liquid-liquid separator. A bottom product containing MIBK is withdrawn from the second distillation column. This bottom product is fed to a third distillation column, high boiling impurities are withdrawn as a bottom product, and purified MIBK is also withdrawn. The invention also relates to an apparatus used in such a method. | 10-08-2009 |
20090306434 | Method to make methyl isobutyl ketone and diisobutyl ketone - An improved method for the manufacture of MIBK and DIBK from DMK and/or IPA, by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture comprising hydrogen and DMK and/or IPA. The improvement is the use of a reaction pressure greater than 207 kPa (30 psig) to increase the ratio of MIBK to DIBK. In addition a method for the manufacture of MIBK and DIBK by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture consisting essentially of DMK and/or IPA and optionally water. | 12-10-2009 |
20100222612 | Method and Apparatus for Producing Purified Methyl Isobutyl Ketone - This invention relates to a method of producing purified methyl isobutyl ketone (MIBK) comprising subjecting a feed stream containing MIBK and impurities to a first distillation procedure from which acetone is recovered and a bottom product containing MIBK and impurities is withdrawn. This bottom product is fed to a second distillation column, where a vapour overhead product is withdrawn, condensed and fed to an overhead liquid-liquid separator. Part of an organic phase from the overhead liquid-liquid separator is fed to the second distillation column and part is fed to a third distillation column. A vapour overhead product is withdrawn from the third column which is condensed in the same said condensor. The condensed product is fed to the same said overhead liquid-liquid separator, and purified MIBK is withdrawn from the third distillation column. This invention also relates to an apparatus used in such a method. | 09-02-2010 |
20100317897 | Process for the Production of MIBC and /or IBHKI Plus TMN Using Copper-Based Catalysts - MIBC and/or a mixture of IBHK and TMN is produced from MIBK by a process comprising the step of contacting MIBK with hydrogen under condensation/hydrogenation/dehydration reactive conditions and in the presence of a catalytic amount of a Cu-based condensation/hydrogenation/dehydration catalyst. The relative amounts of MIBC and the mixture of IBHK and TMN are controlled by the reaction temperature, a lower temperature, e.g., 130 C, favoring MIBC alone, and a higher temperature, e.g., 200 C, favoring a mixture of MIBC and IBHK plus TMN. | 12-16-2010 |
20100317898 | NOVEL CATALYST FOR ALDOL CONDENSATION REACTIONS - Present invention presents catalytic systems for aldol condensation reactions. The efficiency of the catalytic systems of the present invention is comparable to those of the classical strong acid or strong base catalysts. | 12-16-2010 |
20110040128 | OPTIMIZED PRODUCTION OF KETONES/ALDEHYDES - Production of a ketone or aldehyde prepared by condensation is optimized by dehydration and hydrogenation of a starting acetone/ketone or aldehyde in a reaction zone and wherein water is partially eliminated from such reaction product by at least one membrane pervaporation module, the pervaporation module being fed tangentially and situated laterally to the reaction zone and operating in a loop, and wherein a fraction of reaction product exiting the reaction zone is thus partially dehydrated and recycling such dehydrated concentrate to the reaction zone. | 02-17-2011 |
20110124922 | Metal Alloy Catalyst Composition - This invention relates to the composition of metal alloy-doped heterogeneous catalysts and their method of use. In particular the present invention relates to the composition and use of cost-effective metal alloy-doped ion exchange resin catalysts which provide for comparable yield and selectivity compared to the catalysts previously used. | 05-26-2011 |
568390000 | Aldehyde reacted with ketone | 2 |
20130310607 | PROCESS FOR PREPARING PSEUDOIONONE - Use of pure lanthanum oxide which is obtained by calcination of oxygen-containing lanthanum salts at temperatures of at least 700° C. as heterogeneous catalyst in the aldol condensation of citral and acetone to give pseudoionone, and process for the preparation of pseudoionone by aldol condensation of citral and acetone in the liquid phase using pure lanthanum oxide. | 11-21-2013 |
20150133694 | GREEN PROCESS FOR PRODUCING 3-METHYL-3-PENTENE-2-ONE - The present invention relates to an improved and sustainable process for producing 3-methyl-3-pentene-2-one which is used in the synthesis of fragrance ingredients for perfumery applications. | 05-14-2015 |
568391000 | Oxy containing reactant | 5 |
20120116127 | Process for the manufacture of alkenones - Process for preparing an alkenone, which comprises the following steps: (a) providing a halogenated precursor of the alkenone; and (b) eliminating the hydrogen halide from said precursor to form the alkenone by a thermolysis treatment selected from the group consisting of flash thermolysis, vacuum thermolysis, and thermolysis under stripping with inert gas. | 05-10-2012 |
20140343325 | METHOD FOR THE PURPOSE OF A CATALYTIC CONDENSATION OR COUPLING - The invention relates to a method for catalytically condensing organic compounds containing at least one oxo and/or hydroxyl function into CH acidic compounds and/or coupling said organic compounds to the CH acidic compounds in the presence of a catalyst which comprises an active carbon substrate provided with a metal. The method is suitable in particular for generating higher alcohols, aldehydes, ketones, and/or alkanes as well as mixtures thereof. | 11-20-2014 |
568392000 | The oxy and the aldehyde or ketone are in the same reactant | 3 |
20120101305 | Process For The Manufacture Of Halogenated Precursors Of Alkenones Under Specific Conditions - A process for preparing a halogenated precursor of an alkenone, which comprises reacting a carboxylic acid halide with a vinyl ether in a liquid reaction medium under turbulent conditions and a process for preparing an alkenone, by eliminating hydrogen halide from said precursor to form the alkenone. | 04-26-2012 |
20120116128 | Process For The Manufacture Of Halogenated Precursors Of Alkenones In The Presence Of A Solvent - A process for preparing a halogenated precursor of an alkenone, which comprises reacting a carboxylic acid halide with a vinyl ether in a liquid reaction medium comprising an alkenone or a halogenated precursor of the alkenone, and a process for preparing an alkenone, which comprises (a) reacting a carboxylic acid halide with a vinyl ether by introducing vinyl ether into a liquid reaction medium containing carboxylic acid halide to form a halogenated precursor of the alkenone and (b) eliminating hydrogen halide from said precursor to form the alkenone. | 05-10-2012 |
20130245326 | PROCESS FOR PRODUCING DIBK - A process for producing diisobutyl ketone (DIBK) which includes bringing together triacetone dialcohol (TDA) and a bifunctional catalyst that can perform a dehydration and hydrogenation reaction is described. | 09-19-2013 |
568393000 | Halogen containing reactant | 2 |
20120095265 | CHEMICAL PROCESS FOR THE PRODUCTION OF HALOALKENONE ETHERS - The present invention relates to a continuous process for producing a haloalkenone ether of the Formula (I) wherein R | 04-19-2012 |
568394000 | The halogen and the aldehyde or ketone are in the same reactant | 1 |
20100217049 | Process for Dehydration of Hexafluoroacetone Hydrate - [Task] To provide a process for producing anhydrous hexafluoroacetone from hexafluoroacetone hydrate. To provide a process taking environment into consideration, that does not require a treatment of wastes, such as waste sulfuric acid, containing organic substances, which is inevitable in processes conducted hitherto using concentrated sulfuric acid, fuming sulfuric acid, and the like. | 08-26-2010 |
568395000 | Acyclic unsaturated hydrocarbon reactant | 1 |
20120123168 | PRODUCTION OF FUEL FROM CHEMICALS DERIVED FROM BIOMASS - Hydrocarbons may be formed from six carbon sugars. This process involves obtaining a quantity of a hexose sugar. The hexose sugar may be derived from biomass. The hexose sugar is reacted to form an alkali metal levulinate, an alkali metal valerate, an alkali metal 5-hydroxy pentanoate, or an alkali metal 5-alkoxy pentanoate. An anolyte is then prepared for use in a electrolytic cell. The anolyte contains the alkali metal levulinate, the alkali metal valerate, the alkali metal 5-hydroxy pentanoate, or the alkali metal 5-alkoxy pentanoate. The anolyte is then decarboxylated. This decarboxylating operates to decarboxylate the alkali metal levulinate, the alkali metal valerate, the alkali metal 5-hydroxy pentanoate, or the alkali metal 5-alkoxy pentanoate to form radicals, wherein the radicals react to form a hydrocarbon fuel compound. | 05-17-2012 |
568396000 | Gaseous hydrogen reactant or Group IA or IIA light metal containing material utilized | 5 |
20110237837 | LOW PRESSURE ONE-STEP GAS-PHASE PROCESS FOR PRODUCTION OF METHYL ISOBUTYL KETONE - A low-pressure one-step gas-phase process for the production and recovery of methyl isobutyl ketone (MIBK) is disclosed. One-step gas-phase synthesis of MIBK from acetone and hydrogen over nano-Pd/nano-ZnCr | 09-29-2011 |
20120004468 | METHOD FOR MAKING HETEROGENOUS CATALYSTS - A method of making a heterogeneous catalyst, the catalyst produced therefrom, and the use of the catalyst, comprising mixing a dried ion exchange resin with a solution of a ketone and a metal, swelling the ion exchange resin, distributing the metal in the resin, and transforming without reducing agents the metal to zero valent at a temperature below 120° C. | 01-05-2012 |
20120004469 | Multireaction Bifunctional Polymeric Catalyst - A polymeric catalyst, and methods of using the catalyst, comprising at least one of a monosulfonated ion exchange resin, monosulfonated gel, and macroreticular resin having a particle size of less than 560 μm and metal impregnated within the resin, where the metal is palladium, platinum, iridium, rhodium, ruthenium, copper, gold, and/or silver. | 01-05-2012 |
20150025277 | Two-Step System And Method For The Production Of Methyl Isobutyl Ketone - Embodiments of the present invention describe systems and methods for production of methyl isobutyl ketone (MIBK) from acetone and hydrogen in a two-step process. In a first step, acetone is converted to a product stream containing mesityl oxide (MO) at a temperature in the range of about 0-120° C. and a pressure in the range of about 1-3 atm. The composition of the product stream from the first reaction step is adjusted so that the resulting stream can undergo a favorable liquid-liquid separation in a decanter, and an MO rich product stream can be recovered. The composition of the feed to the decanter is controlled by choosing the number of reactor stages for the first reaction step and their operating temperatures, and/or by recycling some MIBK to the decanter feed. The method does not require a substantially complete conversion of acetone in the first reaction step, nor does it require a removal of DAA from the product of the first reaction step by separation. | 01-22-2015 |
20150051425 | Catalyst for Aldol Condensation - In one embodiment, the invention is to a catalyst composition comprising lime and cement. Preferably, the catalyst composition comprises the lime and the cement in a weight ratio of at least 3.5:1 respectively. | 02-19-2015 |