序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
41 Conversion of alcohols to alkyl esters and carboxylic acids using heterogeneous palladium-based catalysts US14702266 2015-05-01 US09593064B2 2017-03-14 Shannon S. Stahl; Adam B. Powell; Thatcher W. Root; David S. Mannel; Maaz S. Ahmed
Disclosed are methods for synthesizing an ester or a carboxylic acid from an organic alcohol. To form the ester one reacts, in the presence of oxygen gas, the alcohol with methanol or ethanol. This reaction occurs in the presence of a catalyst comprising palladium and a co-catalyst comprising bismuth, tellurium, lead, cerium, titanium, zinc and/or niobium (most preferably at least bismuth and tellurium). Alternatively that catalyst can be used to generate an acid from that alcohol, when water is also added to the reaction mix.
42 Thermally stable nano-catalyst US14345739 2012-08-19 US09352300B2 2016-05-31 Dean Howard Barrett; Paul John Franklyn
This invention relates to a titanium dioxide catalyst particle, the catalyst particle comprising rutile nanorods having metal nanoparticles deposited at or near the free ends of the nanorods, which is suitable to catalyze reactions after exposure to temperatures above 550 deg C. The invention also provides for the use of a catalyst particle in catalyzing reactions and a method of catalyzing reactions, the catalyst particle being suitable to catalyze reactions after exposure to temperatures about 550 deg C.
43 PROCESS FOR TRANSFORMATION OF A FEEDSTOCK COMPRISING A LIGNOCELLULOSIC BIOMASS USING AN ACIDIC HOMOGENEOUS CATALYST IN COMBINATION WITH A HETEROGENEOUS CATALYST COMPRISING A SPECIFIC SUBSTRATE US14862296 2015-09-23 US20160090331A1 2016-03-31 Etienne GIRARD; Amandine CABIAC; Damien DELCROIX
Process for transformation of a feedstock of lignocellulosic biomass and/or the carbohydrates, into mono-oxidized or poly-oxidized compounds, wherein the feedstock is contacted, simultaneously, with a catalytic system that comprises one or more homogeneous catalysts selected from Brønsted acids and heterogeneous catalysts comprising at least one metal selected from groups 6 to 11 and 14 of the periodic table, and a substrate selected from perovskites of formula ABO3, in which A is Mg, Ca, Sr, Ba, and La, and B is selected from Fe, Mn, Ti and Zr, oxides of lanthanum, neodymium, yttrium, cerium, and niobium, or mixtures thereof, and mixed oxides of aluminates of zinc, copper, and cobalt, or mixtures thereof, in the same reaction chamber, with at least one solvent, being water or water with at least one other solvent, under reducing atmosphere, and temperature of 50° C. to 300° C., and pressure of 0.5 MPa to 20 MPa.
44 DISTRIBUTOR PLATE FOR A GAS-LIQUID MIXTURE, PROVIDED WITH DISTRIBUTION ELEMENTS HAVING LOW SENSITIVITY TO A LACK OF HORIZONTALITY US14356252 2012-10-09 US20140364650A1 2014-12-11 Yacine Haroun; Frederic Bazer-Bachi; Frederic Augier; Charly Rogeon; Christophe Boyer
The present invention describes a distributor plate provided with distribution elements having low sensitivity to a lack of horizontality, a distribution element being constituted by two substantially co-axial cylinders termed the inner cylinder (1) and the outer cylinder, the lower horizontal surface (5) separating the two cylinders being closed. The distributor plate is suitable for co-current downflows of gas and liquid, more particularly in “trickle bed” mode. The invention also concerns the application of the distributor plate to processes for the hydrotreatment or hydrogenation of various oil cuts.
45 Method for manufacturing ester US13881544 2011-10-11 US08853426B2 2014-10-07 Kazuaki Ishihara; Muhammet Uyanik
The present invention relates to a method for manufacturing an ester from a ketone or an aldehyde, which is a reactive substrate, by a Baeyer-Villiger oxidation reaction using hydrogen peroxide, and in this method, as a catalyst, M(BAr4)n, which is a metal borate, is used (M represents an alkali metal or an alkaline earth metal; Ar represents an aryl; and n is the same number as the valence of M). For example, when cyclohexanone was used as the reactive substrate, and Sr[B(3,5-CF3C6H3)4]2 was used as the catalyst, ε-caprolactone was obtained at an isolated yield of 82%.
46 METHOD OF OXIDIZING AN ORGANIC COMPOUND US14046853 2013-10-04 US20140171689A1 2014-06-19 Chintamani Nagesa Ramachandra Rao; Ujjal Kam Gautam; Srinivasa Rao Lingampalli
The disclosure relates to a method of oxidation of an aliphatic C—H bond in an organic compound using CdO2 or ZnO2 nanoparticles as oxidizing agents. The instant disclosure relates to a method of oxidizing toluene using metal peroxide nanoparticles such as CdO2, ZnO2 as oxidizing agents to obtain oxidized products predominantly comprising benzaldehyde.
47 BLEACH CATALYSTS US13992888 2011-12-08 US20130261041A1 2013-10-03 Hauke Rohwer; Barbara Wagner; Frederique Wendeborn; Katherina Misteli
The present invention relates to specific acylhydrazone compounds, their use as oxidation catalysts and to a process for removing stains and soil on textiles and hard surfaces. The compounds are substituted with a specific cyclic ammonium group adjacent to the acyl group. Further aspects of the invention are compositions or formulations comprising such compounds.
48 PROCESS FOR THE PREPARATION OF CU-CR OXIDES FOR SELECTIVE OXIDATION REACTIONS US13623618 2012-09-20 US20130085305A1 2013-04-04 Rajaram Bal; Bipul Sarkar; Shubhra Acharyya Shankha; Shilpi Ghosh; Chandrashekar Pendem; Kumar Jagdish
The present invention provides a process for the preparation of Cu—Cr oxides by hydrothermal synthesis method using hydrazine as a reducing agent and cetyltrimethylammonium bromide as a surfactant and these oxides are very active for selective oxidation of benzene, toluene and ethylbenzene to produce phenol, benzaldehyde and acetophenone, respectively.
49 RUTILE TITANIUM DIOXIDE NANOPARTICLES EACH HAVING NOVEL EXPOSED CRYSTAL FACE AND METHOD FOR PRODUCING SAME US13389097 2010-07-13 US20120132515A1 2012-05-31 Teruhisa Ohno
Provided are: novel rutile titanium dioxide nanoparticles each having a high photocatalytic activity; a photocatalyst including the rutile titanium dioxide nanoparticles; and a method for oxidizing an organic compound using the photocatalyst. The rutile titanium dioxide nanoparticles each have an exposed crystal face (001). The rutile titanium oxide nanoparticles may be produced by subjecting a titanium compound to a hydrothermal treatment in an aqueous medium in the presence of a hydrophilic polymer. A polyvinylpyrrolidone, for example, is used as the hydrophilic polymer. An organic compound having an oxidizable moiety can be oxidized with molecular oxygen or a peroxide under photoirradiation in the presence of the photocatalyst including the rutile titanium oxide nanoparticles.
50 COATED CATALYSTS COMPRISING A MULTIMETAL OXIDE COMPRISING MOLYBDENUM US12937210 2009-04-08 US20110034326A1 2011-02-10 Alexander Czaja; Martin Kraus
The invention relates to a coated catalyst comprising (a) a support body, (b) a first layer comprising a molybdenum oxide or a precursor compound which forms molybdenum oxide, (c) a second layer comprising a multimetal oxide comprising molybdenum and at least one further metal. The molybdenum oxide of the first layer is preferably MoO3. The multimetal oxide of the second layer is preferably a multimetal oxide of the general formula II Mo12BiaCrbX1cFedX2eX3fOy   (II).
51 TRIDENTATE (NNC) CATALYSTS FOR THE SELECTIVE OXIDATION OF HYDROCARBONS US12354409 2009-01-15 US20090234121A1 2009-09-17 Roy A. Periana; William A. Goddard, III; Jonas Oxgaard; Kenneth Young
The synthesis of discrete, air, protic, and thermally stable transition metal NNC complexes that catalyze the CH activation and functionalization of alkanes and arenes is disclosed. Methods for the selective conversion of methane to methanol or methyl esters in acidic and neutral media are disclosed.
52 Manganese oxides and their use in the oxidation of alkanes US12163393 2008-06-27 US20090023972A1 2009-01-22 Helge Jaensch; Wilfried J. Mortier
Catalytic structures are provided comprising octahedral tunnel lattice manganese oxides ion-exchanged with metal cations or mixtures thereof. The structures are useful as catalysts for the oxidation of alkanes and may be prepared by treating layered manganese oxide under highly acidic conditions, optionally drying the treated product, and subjecting it to ion exchange.
53 Modifying chemoselectivity during oxidation of nitrogen compounds US10240364 2001-03-22 US06878821B2 2005-04-12 Patrick Bernardelli
The invention concerns a method for chemoselective oxidation of an organic compound comprising several potentially oxidizable groups whereof at least one is a nitrogen group. Said method is characterised in that it consists in using at least a protic solvent, which is a good donor of hydrogen bonds, enabling to limit N-oxidation.
54 Process for catalyzing the oxidation of organic compounds US10049208 2002-02-08 US06815543B1 2004-11-09 Patrick Bernardelli
Oxidation of organic compounds is catalyzed by addition of a catalytic amount of a metalloporphyrin in a non-reactive aprotic solvent.
55 Modifying chemoselectivity during oxidation of nitrogen compounds US10240364 2003-02-27 US20030176723A1 2003-09-18 Patrick Bernadelli
The invent concerns a method for chemoselective oxidation of an organic compound comprising several potentially oxidizable groups whereof at least one is a nitrogen group. Said method is characterised in that it consists in using at least a protic solvent, which is a good donor of hydrogen bonds, enabling to limit N-oxidation.
56 Methods of preparing an intermediate oxidation product from a hydrocarbon by utilizing an activated initiator US104745 1998-06-25 US5980801A 1999-11-09 Mark W. Dassel; Eustathios Vassiliou; David C. DeCoster; Ader M. Rostami
Methods for oxidizing a hydrocarbon to an intermediate oxidation product by utilizing an activated initiator. The initiator is activated by partially oxidizing a first mixture of the initiator and a hydrocarbon, which mixture contains a rather large amount of initiator. The first mixture may even be just initiator. The first mixture, after the partial oxidation, is mixed with a second mixture containing hydrocarbon and a smaller amount of initiator. The second mixture may even contain no initiator at all. The oxidation is continued to a desired degree. Preferably, at least one of the two mixtures, and even more preferably both reaction mixtures contain an oxidation catalyst and an acidic solvent.
57 Oxidation and oxydehydrogenation of hydrocarbons in the fluidized bed US779840 1997-01-07 US5866737A 1999-02-02 Alfred Hagemeyer; Jurgen Schweinzer; Otto Watzenberger
A process for the oxidation and oxidative dehydrogenation of hydrocarbons, in particular ethylbenzene, to form corresponding oxidized or olefinically unsaturated compounds, in particular styrene, over an oxygen-conferring, oxygen-regenerable catalyst involving a working period, a time-displaced regenerating period and at least one intermediate rinsing period comprises effecting a partial regeneration during the working period by time-displaced addition of a substoichiometric amount of oxygen.
58 Methods of preparing an intermediate oxidation product from a hydrocarbon by utilizing an activated initiator US861176 1997-05-21 US5824819A 1998-10-20 Mark W. Dassel; Eustathios Vassiliou; David C. DeCoster; Ader M. Rostami
Methods for oxidizing a hydrocarbon to an intermediate oxidation product by utilizing an activated initiator. The initiator is activated by partially oxidizing a first mixture of the initiator and a hydrocarbon, which mixture contains a rather large amount of initiator. The first mixture may even be just initiator. The first mixture, after the partial oxidation, is mixed with a second mixture containing hydrocarbon and a smaller amount of initiator. The second mixture may even contain no initiator at all. The oxidation is continued to a desired degree. Preferably, at least one of the two mixtures, and even more preferably both reaction mixtures contain an oxidation catalyst and an acidic solvent.
59 Method and reaction pathway for selectively oxidizing organic compounds US678440 1996-07-03 US5786505A 1998-07-28 Donald M. Camaioni; Michael A. Lilga
A method of selectively oxidizing an organic compound in a single vessel comprises: a) combining an organic compound, an acid solution in which the organic compound is soluble, a compound containing two oxygen atoms bonded to one another, and a metal ion reducing agent capable of reducing one of such oxygen atoms, and thereby forming a mixture; b) reducing the compound containing the two oxygen atoms by reducing one of such oxygen atoms with the metal ion reducing agent to, 1) oxidize the metal ion reducing agent to a higher valence state, and 2) produce an oxygen containing intermediate capable of oxidizing the organic compound; c) reacting the oxygen containing intermediate with the organic compound to oxidize the organic compound into an oxidized organic intermediate, the oxidized organic intermediate having an oxidized carbon atom; d) reacting the oxidized organic intermediate with the acid counter ion and higher valence state metal ion to bond the acid counter ion to the oxidized carbon atom and thereby produce a quantity of an ester incorporating the organic intermediate and acid counter ion; and e) reacting the oxidized organic intermediate with the higher valence state metal ion and water to produce a quantity of alcohol which is less than the quantity of ester, the acid counter ion incorporated in the ester rendering the carbon atom bonded to the counter ion less reactive with the oxygen containing intermediate in the mixture than is the alcohol with the oxygen containing intermediate.
60 Use of synthetic metalloporphyrins for preparation and prediction of drug metabolites US520842 1995-09-12 US5760216A 1998-06-02 Mukund S. Chorghade; David H. Dolphin; David R. Hill; Fumio Hino; Elaine C. Lee
A method for the systematic and efficient synthetic preparation and identification of metabolites of a pharmaceutical product in order to study possible toxic and/or otherwise biologically-active metabolites of such pharmaceutical products as early and conveniently as possible in the very expensive drug development process, comprising adding samples of the pharmaceutical product to a series of combinations of a synthetic metalloporphyrin (SMP) with a synthetic metalloporphyrin-co-oxidizing reagent in the presence of a suitable solvent, under specified conditions, in a manner such that each sample of pharmaceutical product is reacted with a different combination of synthetic metalloporphyrin, SMP-co-oxidizing reagent and solvent, followed by separation and isolation of the resulting oxidative products, then confirmation of the identity of metabolites from the pre-identified oxidative products by appropriate animal model studies, and subjecting the actual metabolites prepared in larger quantities by the above method to toxicologic, pathologic, histopathologic, mechanistic or genotoxic testing in order to identify toxic and/or otherwise metabolically-active beneficial or detrimental individual metabolites.
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