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| Number | Title | Issue Date |
| 8168836 | Method of hydrogenating aldehydes and ketones Methods and systems for the hydrogenation of aldehydes and/or ketones are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and solubility of the hydrogen-containing gas (e.g. H2 gas) in the a... | 05/01/2012 |
| 7799958 | Process for the production of iso-propanol by liquid phase hydrogenation The present invention relates to a process for the production of iso-propanol by liquid phase hydrogenation of acetone to iso-propanol in at least two hydrogenation reaction stages, each reaction stage comprising a hydrogenation reaction zone, wherein the hydrogenat... | 09/21/2010 |
| 7663006 | Process for production of purified alcohols A process for producing a purified alcohol giving satisfactory results in a sulfuric acid coloring test is provided. A process for producing a purified alcohol which includes the following steps: a condensation step in which... | 02/16/2010 |
| 7659433 | Purification of 1,1,1,3,3,3-hexafluoroisopropanol 1,1,1,3,3,3-Hexafluoroisopropanol (HFIP) substantially free of 1,1,1-trifluoroacetone (TFA) can be separated from a mixture containing both compounds by A) catalytic reduction with hydrogen followed by fractional distillation; B) cooling to a temperature at which HF... | 02/09/2010 |
| 7479576 | Method of hydrogenating aldehydes and ketones Methods and systems for the hydrogenation of aldehydes and/or ketones are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and solubility of the hydrogen-containing gas (e.g. H2 gas) in the a... | 01/20/2009 |
| 7439406 | Method for hydrogenating methylol alkanals Disclosed is a method for the catalytic hydrogenation of methylol alkanals of general formula (I), where R1 and R2 independently represent an additional methylol group or an alkyl group having with 1 to 22 carbon atoms, or an alkyl group with 1... | 10/21/2008 |
| 7381852 | Process for hydrogenating an aldehyde The present invention relates to a process for hydrogenating an aldehyde. An aldehyde is contacted with a catalyst comprising a support containing at least 95% α-alumina and non-support metals dispersed on the surface of the support. The non-support metals comprise... | 06/03/2008 |
| 7378560 | Ruthenium complex and process for producing tert-alkyl alcohol therewith A tert-alkyl ketone, pinacolone was hydrogenated under pressurized hydrogen in the presence of a ruthenium complex (S)-1 and a base, and corresponding (S)-3,3,-dimethyl-2-butanol was thereby obtained in 100% yield and 97% ee ... | 05/27/2008 |
| 7365235 | Processes for producing branched compounds via condensation and hydrogenation Processes for producing branched compounds are described wherein a carbonyl compound is condensed in the presence of a catalyst selected from the group consisting of acids and bases, to form an α,β-unsaturated condensation product; and the α,β-unsaturated conden... | 04/29/2008 |
| 7335800 | Hydrogenation catalyst and hydrogenation method The present invention provides a hydrogenation catalyst effective for hydrogenating 3-hydroxypropionaldehyde to 1,3-propanediol. The hydrogenation catalyst comprises an α-alumina support, nickel, ruthenium, and a promoter. The nickel is deposited on the α-alumina ... | 02/26/2008 |
| 7329785 | Process for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal in the presence of a hydration co-catalyst A process for preparing 1,3-propanediol comprising the steps of: (a) preparing an aqueous mixture of 3-hydroxypropanal, (b) passing said aqueous 3-hydroxypropanal mixture to a hydrogenation zone wherein the hydrogenation zone is comprised of at least two stages wher... | 02/12/2008 |
| 7319178 | Molecular sieve compositions, catalysts thereof, their making and use in conversion processes The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene. The catalyst composition comprises a mole... | 01/15/2008 |
| 7317131 | Catalytic hydrogenation processes The catalysts of formula (II): [Ru(L)m(L′)wXY], wherein X and Y represent simultaneously or independently a hydrogen or halogen atom, a hydroxy group, or an alkoxy, carboxyl or other anionic radical, m is 1 or 2, w is 1 when m is 1 and w is 0... | 01/08/2008 |
| 7291753 | Transfer hydrogenation processes and catalysts The invention relates to a process for the reduction of compounds comprising a carbon-carbon (C═C), carbon-oxygen (C═O), or carbon-nitrogen (C═N) double bond, to a corresponding hydrogenated alkane, alcohol or amine, comprising contacting a compound comprising... | 11/06/2007 |
| 7288693 | Pulse flow reaction A method of operating a multi-phase downflow reactor so as to induce a pulsing flow regime is disclosed. The pulse may be induced by increasing the gas rate while maintaining the liquid rate until a pressure drop sufficient to induce the pulse flow is achieved. The ... | 10/30/2007 |
| 7262330 | Process of producing aldehydes A process of producing aldehydes in a continuous hydroformylation process of continuously reacting an olefinic unsaturated compound with carbon monoxide and hydrogen in the presence of a rhodium-phosphite based complex catalyst and continuously separating at least o... | 08/28/2007 |
| 7208646 | Selective hydrogenation of butadiene A process for the selective hydrogenation of dienes in mixed streams of olefin containing hydrocarbons, such as butadiene in a mixed C4 stream with minimum loss of monoolefins is disclosed wherein the reactor is operated at conditions which induce pulse f... | 04/24/2007 |
| 7186868 | Hydroformylation process for the conversion of an ethylenically unsaturated compound to an alcohol The invention pertains to a hydroformylation process for the conversion of an ethylenically unsaturated compound to an alcohol comprising a first step of reacting at an elevated temperature in a reactor the ethylenically unsaturated compound, carbon monoxide, hydrog... | 03/06/2007 |
| 7183443 | Process for the preparation of enantiomerically enriched compounds Process for the preparation of enantiomerically enriched amino aldehydes and amino alcohols, wherein a corresponding enantiomerically enriched amino nitrile is subjected to hydrogenation in the presence of hydrogen, a hydrogenation catalyst, preferably a Pd-catalyst... | 02/27/2007 |
| 7169749 | Method for producing alkyl-substituted butenols Alkyl-substituted butenols having the formula (I): R1—CH2—CH═CR2—CH2OH (I) wherein R1 is a saturated or olefinically unsaturated alkyl or cycloalkyl group having from 4 to 16 ca... | 01/30/2007 |
| 7154012 | Process for preparing alcohols from olefins by hydroformylation and hydrogenation A process for preparing aliphatic alcohols that includes cobalt-catalyzed hydroformylation of olefins, treatment of a hydroformylation mixture with oxygen-containing gases in the presence of acidic, aqueous cobalt(II) salt solutions, separation of a mixture into an ... | 12/26/2006 |
| 7138552 | Method for producing C-alcohol mixtures The present invention relates to a process for preparing a C13-alcohol mixture which is suitable, in particular, as precursor for the preparation of compounds having surfactant properties and of plasticizers. ... | 11/21/2006 |
| 7135582 | Transition metal complex having diphosphine compound as ligand A transition metal complex having 2,2′-bis[bis(3,5-di-tert-butyl-4-methoxyphenyl)phosphino]-1,1′-binaphthyl as a ligand. The presence of the transition metal complex in the reaction system of an asymmetric reaction system allows the preparation of an objective c... | 11/14/2006 |
| 7122702 | Catalytic hydrogenation of an aliphatically unsaturated group in an organic compound Process for the catalytic hydrogenation of an aliphatically unsaturated group in an organic compound in the presence of a catalyst whose preparation has involved precipitation of catalytically active components onto monoclinic, tetragonal or cubic zirconium dioxide.... | 10/17/2006 |
| 7098369 | Process for the production of primary alcohols A process for producing primary alcohols from secondary alcohols and/or tertiary alcohols and/or ketones, wherein the process comprises reacting a compound selected from a secondary alcohol, a tertiary alcohol, a ketone, or mixtures thereof, with carbon monoxide and... | 08/29/2006 |
| 7087548 | Preparation and use of a heterogeneous rhodium catalyst for the hydrogenation of a double bond of an α-β-unsaturated carbonyl compound A process for preparing an Rh-based catalytic system heterogenized on an organic or mineral support, characterized in that: a) a rhodium derivative with a valency state>0 is reduced in an ether or aromatic solvent and in the presence of a compound chosen from the gr... | 08/08/2006 |
| 7084312 | Catalyst and method for hydrogenating carbonyl compounds A process for the hydrogenation of an organic compound containing at least one carbonyl group comprises bringing the organic compound in the presence of hydrogen into contact with a shaped body which can be produced by a process in which ... | 08/01/2006 |
| 7074972 | Secondary C-Csurfactant alcohols The invention relates to secondary C10 to C18 surfactant alcohols of the general formula (I), wherein R represents methyl or ethyl and R′ represents a linear or branched alkyl group with 6–13 C atoms, excepting 5-ethyl-2-nonanol and 6-ethyl... | 07/11/2006 |
| 7071361 | Processes for the preparation of high molecular weight saturated ketones Continuous single-step processes for producing higher molecular weight ketones are disclosed that involve a liquid-phase crossed condensation of an aldehyde with a ketone in the presence of a hydrogenation catalyst and a small amount of a catalyst comprising a conce... | 07/04/2006 |
| 7064223 | Method for producing technical oleic acid methyl esters A process for making technical oleic acid methyl esters having a stearic acid methyl ester content of less than about 2% by weight, and a palmitic acid methyl ester content of less than about 5%, comprising: (a) providing a C8-18 palm kernel oil fatty aci... | 06/20/2006 |
| 7056485 | Continuous hydrogenation process The invention is directed to a continuous hydrogenation process in which a hydrogenable compound is dissolved in a working solution with hydrogen and a heterogeneous catalyst. At least part of the hydrogen-containing waste hydrogenation gas generated in the reaction... | 06/06/2006 |
| 7041857 | Hydrogenation of acetone This invention relates to an improvement in a liquid phase process for producing isopropanol by the hydrogenation of acetone in the presence of a hydrogenation catalyst; the improvement comprising; contacting acetone with hydrogen ... | 05/09/2006 |
| 7005525 | Recyclable catalysts methods of making and using the same Organometallic complexes are provided, which include a catalyst containing a transition metal, a ligand and a component having the formula GArF. ArF is an aromatic ring system selected from phenyl, naphthalenyl, anthracenyl, fluorenyl, or inden... | 02/28/2006 |
| 7005554 | Method for continuous hydrogenation of citronellal to form citronellol A process is described for selectively hydrogenating citronellal to citronellol in which a liquid phase, in which the citronellal is dissolved and particles of a catalyst are suspended which is capable of preferentially hydrogenating carbon-oxygen double bonds over ... | 02/28/2006 |
| 6995111 | Molecular sieve compositions, catalysts thereof, their making and use in conversion processes The invention relates to a catalyst composition, a method of making the same and its use in the conversion of a feedstock, preferably an oxygenated feedstock, into one or more olefin(s), preferably ethylene and/or propylene The catalyst composition comprises a molec... | 02/07/2006 |
| 6939995 | Process for the preparation of isopropanol Process for the preparation of isopropanol is provided, wherein a benzene-containing feed of acetone is hydrogenated to obtain isopropanol and hydrogenation products of benzene. Combination of such a process with a process for the preparation of phenol and co... | 09/06/2005 |
| 6939981 | Ruthenium complexes of phosphine-aminophosphine ligands Disclosed are ruthenium complexes of phosphine-aminophosphine ligands that may be used to catalyze large number of reactions of a wide variety of substrates such as asymmetric hydrogenations, asymmetric reductions, asymmetric hydroborations, asymmetric olefin isomer... | 09/06/2005 |
| 6930213 | Process for the hydrogenation of acetone Acetone is hydrogenated by a process comprising, conducting the liquid-phase hydrogenation of acetone in at least two hydrogenation process stages, thereby preparing isopropanol product with a high selectivity and in high purity. ... | 08/16/2005 |
| 6916964 | Selective hydrogenation of olefinically unsaturated carbonyl compounds The present invention relates to a continuous process for the selective hydrogenation of olefinically unsaturated carbonyl compounds to give unsaturated alcohols in particular of citral to give a mixture of geraniol and nerol, in a reactor containing a liquid phase,... | 07/12/2005 |
| 6911523 | Method to decrease the aldehyde content of polyesters A method to decrease an aldehyde content of a polyester. The method comprises incorporating an effective amount of an additive that is capable of catalyzing a hydride-transfer reaction between an organic donor molecule and an aldehyde in the polyester. ... | 06/28/2005 |
