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| Number | Title | Issue Date |
| 7696387 | Method for preparing catalyst for partial oxidation of methylbenzenes The present invention relates to a novel method for preparing a catalyst for partial oxidation of methylbenzenes, comprising, (a) a step of preparing a solution or slurry of the compounds comprising tungsten; (b) a step of supporting the solution or slurry obtained ... | 04/13/2010 |
| 7538253 | Method for preparing catalyst for partial oxidation of methylbenzenes The present invention relates to a novel method for preparing a catalyst of the formula (1), WOx wherein, W represents tungsten atom, O represents oxygen atom x represents a value determined by oxidative state of W, for partial oxidation of methylb... | 05/26/2009 |
| 7429682 | Catalyst for partial oxidation of methylbenzenes, method for preparing the same, and method for producing aromatic aldehydes using the same A catalyst for gas phase oxidation of methylbenzenes in the presence of molecular oxygen to produce corresponding aromatic aldehydes, a method for preparing the catalyst, and a method for producing aromatic aldehydes from methylbenzenes by using the catalyst. The ca... | 09/30/2008 |
| 7423184 | Method of making carbonyl compounds A method of making a carbonyl compound comprises contacting a compound comprising a secondary hydroxyl group with a basic metal oxide catalyst at a temperature sufficient to maintain the compound comprising a secondary hydroxyl group in a vapor phase. ... | 09/09/2008 |
| 7417171 | Method for preparing an aromatic dialdehyde and manufacturing system for the same The present invention relates to a method for preparing an aromatic dialdehyde, comprising, a) a step of gas phase oxidation reaction for preparing aromatic dialdehyde from dimethyl benzene; b) a step of separation for selectively recovering crude aromatic dialdehyd... | 08/26/2008 |
| 7411099 | Process for the liquid phase oxidation of toluene to benzaldehyde The present invention provides a liquid phase oxidation of toluene by using catalyst containing manganese (Manganese II acetate) in presence of Lewis acid (Stannous (II) chloride) and a bromide promoter (NaBr), at a temperature of 120° C. and at a pressure of air i... | 08/12/2008 |
| 7338918 | Catalyst having a silver-vanadium oxide phase and a promoter phase A catalyst is described which has a catalytically active composition which contains a phase A and a phase B in the form of three-dimensional delimited regions, wherein phase A is a silver-vanadium oxide bronze and phase B a mixed oxide phase based on titanium dioxid... | 03/04/2008 |
| 7227049 | Ni catalysts and methods for alkane dehydrogenation Catalysts and methods for alkane oxydehydrogenation are disclosed. The catalysts of the invention generally comprise (i) nickel or a nickel-containing compound and (ii) at least one or more of titanium (Ti), tantalum (Ta), niobium (Nb), hafnium (Hf), tungsten (W), y... | 06/05/2007 |
| 7208634 | Oxidation method of primary or secondary alcohol A method for preparing an aldehyde or ketone by oxidizing a primary or secondary alcohol in the presence of a nitroxyl radical compound and a co-oxidant in an organic solvent, which process is characterized in using an organic N-bromoamide compound or a combination ... | 04/24/2007 |
| 7189882 | Selective liquid phase oxidation of toluene to benzaldehyde The present invention provides an improved process for the liquid phase oxidation of toluene to benzaldehyde with high selectivity and good activity in an organic acid medium using a catalyst system consisting of transition metal/metals and bromide as a promoter in ... | 03/13/2007 |
| 7183442 | Purification method of terephthal aldehyde The present invention relates to a method for preparing high-purity terephthalaldehyde from terephthalaldehyde crystal containing impurities by recrystallization using an antisolvent. Low-purity terephthalaldehyde prepared by a conventional method, which contains a ... | 02/27/2007 |
| 7166751 | Method for manufacturing cycloalkanol and/or cycloalkanone The object of the present invention is to provide a method for manufacturing cycloalkanol and/or cycloalkanone with favorable selectivity coefficient by oxidizing cycloalkane with favorable degree of conversion. In the present invention, cycloalkane is oxidiz... | 01/23/2007 |
| 7063982 | Process of vaporizing and reacting a liquid feed A process for evaporating a liquid feed and reacting said feed in the presence of catalyst to make product within a reactor having both an evaporation zone and a reaction zone comprises the steps of providing packing in the evaporation zone, providing catalyst in th... | 06/20/2006 |
| 7005542 | Catalyst for synthesis of unsaturated aldehyde, production process for said catalyst, and production process for unsaturated aldehyde using said catalyst The present invention provides: a production process for a catalyst for synthesis of an unsaturated aldehyde and/or an unsaturated carboxylic acid, which production process is suitable for producing the catalyst with good reproducibility, wherein the catalyst is exc... | 02/28/2006 |
| 6790997 | Preparation of carbonyl compounds from alcohols The invention relates to a process for the preparation of carbonyl compounds by the oxidation of alcohols in the presence of osmium compounds as catalysts in water or a solvent mixture containing water. ... | 09/14/2004 |
| 6759550 | Oxidation of alkyl aromatic compounds to aromatic acids in an aqueous medium The present invention pertains to an improved method of oxidizing substituted aromatic compounds (such as p xylene) to their corresponding aromatic acids (such as terephthalic acid). The improvement involves carrying out the oxidation reaction in an aqueous medium, ... | 07/06/2004 |
| 6743952 | Selective liquid phase air oxidation of toluene catalysed by composite catalytic system The present invention provides an improved process for the production of benzaldehyde with 40-50% selectivity by the catalytic liquid phase air oxidation of toluene using a composite catalytic system comprising salts of iron, cobalt, manganese, molybdenum or nickel ... | 06/01/2004 |
| 6670509 | Conversion of organic substrates to oxygenates or olefins using a bicyclo imide promoter A process for oxygenating organic substrates such as aliphatic hydrocarbons has been developed. The process involves contacting the organic substrate with oxygen in the presence of a bicyclo imide promoter and a metal co-catalyst. The process is preferabl... | 12/30/2003 |
| 6642419 | Oxidation method In the presence of (1) an oxidizing catalyst comprising an imide compound such as N-hydroxyphthalimide, or (2) an oxidizing catalyst comprising such imide compound and a transition metal element-containing compound as a co-oxidizing agent (e. g., oxides, ... | 11/04/2003 |
| 6590129 | Method for preparing aromatic carboxylic acids, aromatic aldehydes, and aromatic alcohols An aromatic carboxylic acid, aromatic aldehyde, and aromatic alcohol are simultaneously and efficiently prepared by liquid phase oxidizing an aromatic compound represented by formula (I) with a gas containing molecular oxygen, in a presence of a catalyst ... | 07/08/2003 |
| 6566557 | Process for the preparation of substituted trans-cinnamaldehyde, a natural yellow dye, from phenylpropane derivatives The present invention relates to the preparation of substituted trans-cinnamaldehyde, a natural yellow dye from Phenylpropane derivatives having R2 --R3 --R4 --R5 --R6 substitution, wherein R2 | 05/20/2003 |
| 6506943 | Process for producing aldehydes A process for producing an aldehyde of the invention allows a 1,2-diol (vic-diol) to react with oxygen in the presence of a ruthenium catalyst supported on a carrier to oxidatively cleave a bond between two carbon atoms, where hydroxyl groups are combined... | 01/14/2003 |
| 6506932 | Method for production of oxygen-containing aromatic compound A method for oxidizing an aromatic compound possesssing at least one alkyl substituent by using a catalyst avoids containing a corrosive bromine ion, remains stably without being decomposed even in an oxidizing atmospherfe, and permits reclamation is prov... | 01/14/2003 |
| 6495726 | Process for the production of benzaldehyde by the catalytic liquid phase air oxidation of toluene The present invention relates to an improved process for the production of benzaldehyde with 40-50% selectivity comprising by catalytic liquid phase air oxidation of toluene. The process involves providing a continuous flow of air in the presence of a cat... | 12/17/2002 |
| 6486357 | Catalytic oxidation of alcohols using manganese oxides A method of oxidizing an organic alcohol, wherein the organic alcohol is contacted with a stoichiometric excess of oxygen in the presence of an effective catalytic amount of a maganese-containing octahedral molecular sieve or octahedral layer. Primary alc... | 11/26/2002 |
| 6482991 | Method and apparatus for the preparation of aldehydes A method and an apparatus for producing aromatic aldehydes, including benzaldehyde and metatolualdehyde wherein the reaction occurs in the vapor phase. Raw materials and a source of oxygen are fed into a tube reactor. The raw materials may be in a liquid ... | 11/19/2002 |
| 6458737 | Catalyst for oxidizing methylbenzenes and method for producing aromatic aldehyde The present invention has for its object to provide a novel catalyst by use of which methylbenzenes can be oxidized in gaseous phase in the presence of molecular oxygen to give the corresponding aromatic aldehydes in high yields, a process for producing a... | 10/01/2002 |
| 6350918 | Alcohol conversion Preparing an aldehyde from an alcohol by contacting the alcohol in the presence of oxygen with a catalyst prepared by contacting an intimate mixture containing metal oxide support particles and particles of a catalytically active metal oxide from Groups V... | 02/26/2002 |
| 6297403 | Process for the preparation of aldehydes and ketones A process for the preparation of vinyl, alkynyl, aryl or heteroaryl aldehydes or vinyl, alkynyl, aryl or heteraoryl ketones includes reacting vinyl-, alkynyl-, aryl- and heteroarylmethyl and -methylene compounds with the aid of a mediator and an oxidant, ... | 10/02/2001 |
| 6281382 | Palladium phenanthroline acetate catalyst and a method of oxidizing side-chains of alkylbenzenes with catalyst The method of oxidizing the alkyl groups of alkylbenzenes using palladium phenanthroline acetate or a palladium acetate with modified phenanthroline ligand catalyst. The palladium acetate catalyst with modified phenanthroline has the following formula: ... | 08/28/2001 |
| 6252121 | Metal-ligand complex catalyzed processes This invention relates to a process for separating one or more cyclic products from a reaction product fluid comprising one or more cyclic reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, a non-polar so... | 06/26/2001 |
| 6242643 | Method for preparing aromatic carboxylic acids, aromatic aldehydes, and aromatic alcohols An aromatic carboxylic acid, aromatic aldehyde, and aromatic alcohol are simultaneously and efficiently prepared by liquid phase oxidizing an aromatic compound represented by formula (I) with a gas containing molecular oxygen, in a presence of a catalyst ... | 06/05/2001 |
| 6169213 | Process for the preparation of heteroaryl aldehydes and heteroaryl ketones Process for the preparation of heteroaryl aldehydes or heteroaryl ketones by reaction with heteroarylmethanols with the aid of a mediator and an oxidant, wherein the mediator is selected from the group of the aliphatic, cycloaliphatic, heterocyclic or aro... | 01/02/2001 |
| 6160162 | Methods of catalytic oxidation of propane to acrylic acid A mixed metal oxide Mo--V--Ga--Pd--Nb--X (where X=La, Te, Ge, Zn, Si, In or W) catalytic system providing a higher selectivity to acrylic acid in the low temperature partial oxidation of propane with a molecular oxygen-containing gas.... | 12/12/2000 |
| 6153779 | CuII and ZnII phenoxyl complexes and radical complexes thereof, methods for their preparation and use Quadridentate CuII and ZnII phenoxyl complexes and phenoxyl radical complexes thereof, in which one ligand L is bonded to each metal atom and H2 L stands for the general formula ##STR1## in which the bridge-unit Q sta... | 11/28/2000 |
| 6069282 | Process for the preparation of aldehydes and ketones A process for the preparation of vinyl, alkynyl or aryl aldehydes or vinyl, alkynyl or aryl ketones by reaction of vinyl-, alkynyl- or aryl- methanols with the aid of a mediator and an oxidant, wherein the mediator is selected from the group of the alipha... | 05/30/2000 |
| 6023000 | Process for the preparation of aldehydes and ketones A process for the preparation of vinyl, alkynyl or aryl aldehydes or vinyl, alkynyl or aryl ketones includes reacting vinyl-, alkynyl- and aryl- and -methylene compounds with the aid of a mediator and an oxidant, wherein the mediator is selected from the ... | 02/08/2000 |
| 5981420 | Oxidation catalytic system and oxidation process A substrate (e.g., a cycloalkane, a polycyclic hydrocarbon, an aromatic compound having a methyl group) is oxidized with oxygen in the presence of an oxidation catalytic system comprising an imide compound of the following formula (1) (e.g., N-hydroxyphth... | 11/09/1999 |
| 5912388 | Preparation of aldehydes or ketones from alcohols A process for preparing an aldehyde or ketone comprising reacting a primary or secondary alcohol with oxygen in the presence of a base, a catalytic amount of a copper salt and a suitable lignad under anhydrous conditions.... | 06/15/1999 |
| 5888787 | Selective enzymatic oxidation of aromatic methyl groups to aldehydes by oxygen in the presence of a laccase-mediator catalyst A method for oxidation of a pendant methyl moiety on an aromatic ring to the pendant aldehyde moiety is presented. The reaction employs laccase and the diammonium salt of 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid), and is carried out in the pre... | 03/30/1999 |
