Carbon Monoxide Or Peroxy Containing Reactant Patents (Class 568/311)
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Patent number: 11357709Abstract: Radically polymerizable dental material, which contains a combination of a thiourea derivative and a hydroperoxide according to the following Formula (I) as initiator system for the radical polymerization:Type: GrantFiled: January 31, 2020Date of Patent: June 14, 2022Assignee: Ivoclar Vivadent AGInventors: Norbert Moszner, Thomas Köhler, Johannes Schädlich, Jörg Angermann
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Patent number: 10882806Abstract: The present invention provides a process for preparing 4-methyl-5-nonanone of the following formula (3), the process comprising at least a step of subjecting pentanoic anhydride of the following formula (1) and a 2-pentyl nucleophilic reagent of the following general formula (2), in which M represents Li, MgZ1, or ZnZ1, wherein Z1 represents a halogen atom or a 2-pentyl group, to a nucleophilic substitution reaction to produce 4-methyl-5-nonanone (3), as well as a process for preparing 4-methyl-5-nonanol of the following formula (7), the process comprising at least steps of preparing 4-methyl-5-nonanone and subjecting the obtained 4-methyl-5-nonanone and a reducing agent to a reduction reaction to produce 4-methyl-5-nonanol (7).Type: GrantFiled: December 20, 2019Date of Patent: January 5, 2021Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yuki Miyake, Takeshi Kinsho, Ryo Komatsu
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Patent number: 9890099Abstract: An improved method for the production of phenol. The method comprises (a) synthesizing phenol through a process that utilizes an acidic catalyst; (b) neutralizing the acidic catalyst after substantial completion of step (a) by addition thereto of a neutralization composition, wherein the neutralization composition contains an ethyleneamine derivative.Type: GrantFiled: April 23, 2014Date of Patent: February 13, 2018Assignee: Dow Global Technologies LLCInventors: Xin Jiang, Jianhai Mu
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Patent number: 9745239Abstract: The present invention concerns a method of oxidizing a cycloalkane to form a product mixture containing a corresponding alcohol and ketone, said method comprising contacting a cycloalkane with an oxidant agent in the presence of catalytic effective amount of metal triflates or metal triflimidates catalysts.Type: GrantFiled: April 17, 2014Date of Patent: August 29, 2017Assignees: Rhodia Operations, Ecole Normale Supericure De LyonInventors: Floryan Decampo, Wenjuan Zhou
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Patent number: 9707417Abstract: Described is the use of benzotropolone and their derivatives, especially the compounds of formula (1); wherein R2, R3, R4, R5 and R6 independently of one another are hydrogen; OH; C1-C30alkyl, C2-C30al-kenyl, C1-C30alkoxy, C3-C12cycloalkyl or C1C30hydroxyalkyl, which may be substituted by one or more E and/or interrupted by one or more D; C6-C20aryl, which may be substituted by one or more G; C4-C20heteroaryl, which may be substituted by one or more G, C2-C18alkenyl, C2-C18alkynyl, C7-C25aralkyl, CN, or —CO—R17; C1-C30mono- or dialkylamino; COR9; COOR9; CONR9R10; CN; SO2R9; OCOOR9; OCOR9; NHCOOR9; NR9COR10; NH2; *—(CO)—NH—(CH2)n1—(PO)—(OR11)2; —(CO)—O—(CH2)n1—(PO)—(OR11)2; sulphate; sulphonate; phosphate; phosphonate; —(CH2)n2—[O—(SO2)]n3—OR11; —O—(CH2)n4(CO)n5—R11; —(O)n6—(CH2)n7—(PO)—(OR9)2; —(O)n6—(CH2)n7—SO2—OR9; halogen; organosilanyl; organo-siloxanyl; or a sugar residue linked directly in an ?- or ?-mode via the anomeric oxygen to the benzotropolone system or via a linear or branched alkylene, alkenyleType: GrantFiled: June 18, 2009Date of Patent: July 18, 2017Assignee: BASF SEInventors: Barbara Wagner, Reinhold Öhrlein, Bernd Herzog, Kai Eichin, Gabriele Baisch, Stephanie Portmann
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Publication number: 20150126782Abstract: In a process for producing cyclohexylbenzene, hydrogen, and benzene are contacted in a first reaction zone under conditions effective to produce a product effluent containing residual benzene in the vapor phase and cyclohexylbenzene in the liquid phase. The product effluent is separated into a first stream that is rich in residual benzene in the vapor phase as compared to the product effluent and a second stream that is rich in cyclohexylbenzene in the liquid phase as compared to the product effluent. At least a portion of the first stream is cooled to condense at least a portion of the residual benzene in the vapor phase to the liquid phase and produce a condensate stream. At least a portion of the condensate stream is recycled to the first reaction zone.Type: ApplicationFiled: September 5, 2012Publication date: May 7, 2015Applicant: ExxonMobil Chemical Company - Law TechnologyInventors: Hari Nair, Christopher L. Becker, James R. Lattner, Jihad M. Dakka
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Publication number: 20150112098Abstract: Disclosed are a catalyst comprising (A) an aluminosilicate molecular sieve comprising a ferrierite phase and (B) a hydrogenation metal component, and a hydroalkylation process using the catalyst. The catalyst and the hydroalkylation process can be used in the production of phenol and/or cyclohexanone from benzene hydroalkylation.Type: ApplicationFiled: September 26, 2014Publication date: April 23, 2015Inventors: Gabor Kiss, Thomas E. Green, Terry E. Helton, Tan-Jen Chen
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Publication number: 20150094494Abstract: An alkylating process such as hydroalkylating process comprising feeding a gas material and a liquid material into the reactor, distributing the liquid material to the upper surface of a bed of a catalyst substantially uniformly. The substantial uniform distribution of the liquid material to the upper surface allows for substantially uniform distribution of liquid reaction medium in the bed, thereby preventing hot spot and undesirable continuous liquid zone, both of which can cause the production of undesired by-products. The invention is particularly useful for the hydroalkylation reaction of benzene in making cyclohexylbenzene, which can be used for making cyclohexanone and phenol.Type: ApplicationFiled: September 4, 2014Publication date: April 2, 2015Inventors: Gabor Kiss, Keith H. Kuechler
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Publication number: 20140323766Abstract: In a process for producing cyclohexylbenzene, benzene is reacted with cyclohexene in a first reaction zone under conditions effective to produce a reaction product comprising cyclohexylbenzene and at least one polycyclohexylbenzene. At least a portion of the reaction product and a stripping agent comprising at least one C1 to C11 hydrocarbon or hydrogen are then separately supplied to a separation device and separated into at least a first fraction rich in cyclohexylbenzene and a second fraction rich in the at least one polycyclohexylbenzene.Type: ApplicationFiled: November 21, 2011Publication date: October 30, 2014Inventors: Christopher L. Becker, James R. Lattner, Charles Morris Smith, Kun Wang
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Publication number: 20140148569Abstract: In a process for oxidizing a feed comprising cyclohexylbenzene, the feed is contacted with oxygen and an oxidation catalyst in a plurality of reaction zones connected in series, the contacting being conducted under conditions being effective to oxidize part of the cyclohexylbenzene in the feed to cyclohexylbenzene hydroperoxide in each reaction zone. At least one of the plurality of reaction zones has a reaction condition that is different from another of the plurality of reaction zones. The different reaction conditions may include one or more of (a) a progressively decreasing temperature and (b) a progressively increasing oxidation catalyst concentration as the feed flows from one reaction zone to subsequent reaction zones in the series.Type: ApplicationFiled: August 16, 2011Publication date: May 29, 2014Applicant: ExxonMobil Chemical Patents Inc.Inventors: Jihad Mohammed Dakka, Francisco Manuel Benitez, Bryan Amrutlal Patel, Edmund John Mozeleski
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Patent number: 8697916Abstract: 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.Type: GrantFiled: September 20, 2012Date of Patent: April 15, 2014Assignee: Council of Scientific & Industrial ResearchInventors: Rajaram Bal, Bipul Sarkar, Shubhra Acharyya Shankha, Shilpi Ghosh, Chandrashekar Pendem, Kumar Jagdish
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Patent number: 8686191Abstract: The present invention relates to the technical field of radiation curing photopolymerization initiator, and particularly to an environmentally-friendly new oxidation process for converting several specific aryl-1,2-diol compounds to corresponding arylhydroxyketones.Type: GrantFiled: December 29, 2011Date of Patent: April 1, 2014Assignee: Shenzhen Liv-Chemth Co., LtoInventors: Ting Chen, Yu Wang
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Publication number: 20130296611Abstract: The present invention relates to the technical field of radiation curing photopolymerization initiator, and particularly to an environmentally-friendly new oxidation process for converting several specific aryl-1,2-diol compounds to corresponding arylhydroxyketones.Type: ApplicationFiled: December 29, 2011Publication date: November 7, 2013Inventors: Ting Chen, Yu Wang
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Publication number: 20130197245Abstract: An organometallic molybdenum acetylide dioxo complex of formula (?5-C5H5)MoO2(—Cs?CPh) and provides a simple, short, efficient process for the synthesis of organometallic molybdenum dioxo complex which is used as catalyst for a number of oxidation reactions.Type: ApplicationFiled: March 14, 2013Publication date: August 1, 2013Inventors: Shubhangi Bhalchandra Umbarkar, Mohan Keraba Dongare, Ankush Biradar, Vaibhav Ravindrakumar Acham
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Publication number: 20130099170Abstract: A method and composition wherein carbonaceous nano-scaled filler material is subjected to atmospheric plasma treatment using carbon monoxide as the active gas. The treatment with carbon monoxide plasma has been found to significantly increase the incorporation of oxygen groups on the surface of the filler material without degrading the surface and thus serves to increase wettability and dispersion throughout the matrix. The composite that incorporates the treated filler material has enhanced mechanical and electrical properties.Type: ApplicationFiled: October 19, 2011Publication date: April 25, 2013Applicant: THE AEROSPACE CORPORATIONInventors: RAFAEL J. ZALDIVAR, James P. Nokes, Hyun I. Kim
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Publication number: 20130085305Abstract: 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.Type: ApplicationFiled: September 20, 2012Publication date: April 4, 2013Applicant: Council of Scientific & Industrial ResearchInventor: Council of Scientific & Industrial Research
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Patent number: 8338649Abstract: The invention relates to a method for the production of an aromatic carbonyl compound by the oxidation of a methyl group or methylene group bonded to the aromatic group in which the aromatic substance is reacted in the presence of an oxidizing agent and a sulphoxide, a sulphoxide being selected for the oxidation of a specific aromatic substance whose ionization potential, in terms of magnitude, differs from the ionization potential of the aromatic substance to be oxidized by a maximum of ±0.25 eV.Type: GrantFiled: September 2, 2008Date of Patent: December 25, 2012Assignee: Weylchem Frankfurt GmbHInventors: Klaus Forstinger, Thomas Sommer, Daniel Decker, Andreas Martin, Angela Köckritz, Michael Kant, Alexander Hofmann
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Publication number: 20120289749Abstract: Nanocatalysts and methods of synthesizing and using the same are provided.Type: ApplicationFiled: May 9, 2012Publication date: November 15, 2012Inventors: Tewodros Asefa, Ankush V. Biradar
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Publication number: 20120238549Abstract: The invention provides a compound of Formula (I) pharmaceutically acceptable salts, pro-drugs, biologically active metabolites, stereoisomers and isomers thereof wherein the variable are defined herein. The compounds of the invention are useful for treating immunological and oncological conditions.Type: ApplicationFiled: March 15, 2012Publication date: September 20, 2012Applicant: ABBOTT LABORATORIESInventors: Kevin P. Cusack, Thomas D. Gordon, David C. Ihle, Martin E. Hayes, Eric C. Breinlinger, Anna M. Ericsson, Bin Li, Lei Wang, Gloria Y. Martinez, Andrew Burchat, Adrian D. Hobson, Kelly D. Mullen, Michael Friedman, Michael J. Morytko
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Publication number: 20120197041Abstract: The present invention is directed to a novel method for preparing a synthetic intermediates for treprostinil. Also described are methods of preparing treprostinil comprising utilizing novel intermediates described herein as well as novel intermediates useful for synthesis prostacyclin derivatives, such as treprostinil.Type: ApplicationFiled: March 30, 2012Publication date: August 2, 2012Inventors: Hitesh BATRA, Raju PENMASTA, Vijay SHARMA, Sudersan M. TULADHAR, David A. WALSH
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Publication number: 20120107593Abstract: Disclosed are graphene oxide membrane materials of high surface area, which membranes suitably have a surface area of above about 200 ?m and exhibit electrical conductivity in excess of about 200 S/m. Also provided are methods of synthesizing such membranes, as well as devices and sensors that incorporate these novel grapheme materials.Type: ApplicationFiled: December 4, 2009Publication date: May 3, 2012Applicant: The Trustees of the University of PennsylvaniaInventors: Zhengtang Luo, Alan T. Johnson
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Publication number: 20100069661Abstract: The invention is directed a process of preparing a compound of formula (I), wherein R1, R2, R3 and z are as defined herein.Type: ApplicationFiled: July 24, 2009Publication date: March 18, 2010Applicant: SANOFI-AVENTIS DEUTSCHLAND GMBHInventors: Heiner JENDRALLA, Matthias BRAUN, Gerhard KORB
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Publication number: 20090005602Abstract: Methods and systems for preparing dialkyl ketones are described herein. The methods and systems incorporate the novel use of a high shear device to promote dispersion and solubility of carbon monoxide and hydrogen with the olefins (e.g. ethylene) in a liquid solvent. The high shear device may allow for lower reaction temperatures and pressures and may also reduce reaction time.Type: ApplicationFiled: June 19, 2008Publication date: January 1, 2009Applicant: H R D CORPORATIONInventors: Abbas HASSAN, Ebrahim BAGHERZADEH, Rayford G. ANTHONY, Gregory BORSINGER, Aziz HASSAN
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Patent number: 7288680Abstract: The present invention provides novel benzotropolone derivatives represented by the general formula: including neotheaflavate B and EGCGCa. The benzotropolone derivatives of the present invention are effective antioxidant and anti-inflammatory agents. The present invention also provides novel method of synthesizing benzotropolone compounds in high yields and method of treating inflammatory conditions using benzotropolone containing compounds.Type: GrantFiled: June 23, 2006Date of Patent: October 30, 2007Assignees: Wellgen, Inc., Rutgers, The State University of New JerseyInventors: Chi-Tang Ho, Geetha Ghai, Shengmin Sang, Jin-Woo Jhoo, Mou-Tuan Huang, Robert T. Rosen, Slavik Dushenkov
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Patent number: 7087790Abstract: The present invention provides novel benzotropolone derivatives represented by the general formula: including neotheaflavate B and EGCGCa. The benzotropolone derivatives of the present invention are effective antioxidant and anti-inflammatory agents. The present invention also provides novel method of synthesizing benzotropolone compounds in high yields and method of treating inflammatory conditions using benzotropolone containing compounds.Type: GrantFiled: August 29, 2003Date of Patent: August 8, 2006Assignee: Rutgers, The State University of New JerseyInventors: Chi-Tang Ho, Geetha Ghai, Shengmin Sang, Jin-Woo Jhoo, Mou-Tuan Huang, Robert T. Rosen, Slavik Dushenkov
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Patent number: 7074966Abstract: This application relates to a new process for the production of R-phenylacetylcarbinol by an enzymatic process in a liquid two-phase system.Type: GrantFiled: September 1, 2002Date of Patent: July 11, 2006Assignee: BASF AktiengesellschaftInventors: Bernhard Hauer, Michael Breuer, Peter Rogers, Vanessa Sandford, Bettina Rosche
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Patent number: 6864394Abstract: The invention relates to a method for producing ketones by reacting boric acid derivates with carbocylic acid anhydrides in the presence of a transition metal catalyst. The carboxylic acid anhydrides can either be used in isolated form or produced from carboxylic acids in a reaction mixture. This method enables the simple embodiment of a multitude of functionalized ketones in a single reaction step.Type: GrantFiled: May 8, 2002Date of Patent: March 8, 2005Assignee: Studiengesellschaft Kohle mbHInventors: Lukas Goossen, Keya Ghosh
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Patent number: 6331655Abstract: The present invention relates to a novel process for the preparation of aromatic carbonyl compounds by oxidative cleavage of styrenes using lipases and hydrogen peroxide or hydrogen peroxide donors in the presence of carboxylic acids or carboxylic esters.Type: GrantFiled: June 9, 2000Date of Patent: December 18, 2001Assignee: Haarmann & Reimer GmbHInventors: Ian-Lucas Gatfield, Jens-Michael Hilmer
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Patent number: 6201157Abstract: An improved method for production of phenol and acetone by decomposition of cumene hydroperoxide in the presence of an acidic catalyst to phenol and acetone, wherein the improvement comprises neutralization of the acidic catalyst after substantial completion of the decomposition by addition of a substituted amine.Type: GrantFiled: January 10, 2000Date of Patent: March 13, 2001Assignee: Sunoco, Inc. (R&M)Inventor: Scott R. Keenan
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Patent number: 6159988Abstract: Compounds of formula I, ##STR1## and the physiologically tolerable salts thereof, wherein the substituents R.sub.1 -R.sub.4 have the meanings given in the specifications and show an activity against inflammatory conditions.Type: GrantFiled: June 29, 1998Date of Patent: December 12, 2000Assignee: Hoeschst AktiengesellschaftInventors: Ramachandra Ganapati Naik, Vilas Narayan Mumbaikar, Ravishankar Vasumathy, Aftab Dawoodbhai Lakdawala, Mandakini Bipin Alreja, Bansi Lal, Jurgen Blumbach, Klaus Ulrich Weithmann, Robert Ryder Bartlett, Kalpana Sanjay Joshi, Swati Bal-Tembe, Sadagopan Raghavan
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Patent number: 6106803Abstract: Granulates which contain titanium silicalite-1 are composed of silicon dioxide, titanium dioxide and titanium silicalite-1 crystals. The granulates can be prepared by spray-drying or spray granulating the crystallization suspension. The granulates may be used as suspension catalysts, such as for the epoxidation of olefins using hydrogen peroxide.Type: GrantFiled: July 23, 1998Date of Patent: August 22, 2000Assignee: Degussa-Huls AGInventors: Steffen Hasenzahl, Georg Markowz, Mathias Viandt, Eckehart E. Roland, Georg Thiele, Gustaaf Goor, Alexander Moller
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Patent number: 5859301Abstract: An improved process for preparing alkanones and alkanols by oxidizing an alkane and/or alkene having from 3 to 30 carbon atoms to form an oxidation mixture containing alkylhydroperoxide. A basic, aqueous solution is added to the oxidation mixture so that a separate basic water phase with a pH higher than 8.5 is formed. The alkylhydroperoxide is then decomposed in the presence of a heterogeneous catalyst which contains a metal compound immobilized on a carrier material. The metal of the catalyst is selected from the group consisting of Mn, Fe, Co, Ni, and Cu. The carrier material is stable in the presence of the separate basic water phase.Type: GrantFiled: December 23, 1994Date of Patent: January 12, 1999Assignee: DSM N.V.Inventors: Ubaldus F. Kragten, Henricus A. C. Baur
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Patent number: 5763672Abstract: Catalyst compositions for preparing polyketones comprising(a) a Group VIII metal compound, containing at least one ligand capable of coordinating to the Group VIII metal, and(b) a boron hydrocarbyl compoundare disclosed, in particular catalyst compositions wherein the boron hydrocarbyl compound is a Lewis acid of the formula BXYZ where at least one of X, Y and Z is a monovalent hydrocarbyl group. A preferred catalyst composition comprises a palladium complex and B(C.sub.6 F.sub.5).sub.3.Type: GrantFiled: November 4, 1996Date of Patent: June 9, 1998Assignee: BP Chemical LimitedInventors: Neil Andrew Cooley, Adrian Peter Kirk
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Patent number: 5741939Abstract: A process for the copolymerization of carbon monoxide with an olefinically unsaturated compound comprising contacting the monomers in the presence of a liquid diluent with a catalyst composition which is based on(a) a source of a Group VIII metal,(b) a bidentate ligand of the general formulaR.sup.1 R.sup.2 M.sup.1 --R--M.sup.2 R.sup.3 R.sup.4 wherein M.sup.1 and M.sup.2 independently represent a phosphorus, arsenic or antimony atom, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent unsubstituted or substituted hydrocarbyl groups on the understanding that at least one of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represents a polar substituted aryl group and R represents a bivalent bridging group containing at least two carbon atoms in the bridge, and(c) a boron hydrocarbyl compound,with application of a stirring power transmitted to the polymerization mixture of at least 0.25 kW/m.sup.3.Type: GrantFiled: March 21, 1996Date of Patent: April 21, 1998Assignee: Shell Oil CompanyInventors: Frank Baardman, Arleen Marie Bradford, Jayne Jubb, Pieter Scheerman, Rudolf Jacobus Wijngaarden
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Patent number: 5736479Abstract: The invention concerns new oxidation catalysts, methods of producing them and their use. These catalysts consist of titanium silicalites crystallized in situ onto activated charcoal or metal oxides. The titanium silicalite content lies preferably in the range of 30 to 60% by wt. The atomic ratio of Si to Ti in the carrier-borne phase is 10 to 100. Such catalysts are particularly suitable for oxidation reactions with H.sub.2 O.sub.2 under mild conditions, such as temperatures of 20.degree. to 120.degree. C. and pressures equal to or higher than atmospheric.Type: GrantFiled: May 24, 1995Date of Patent: April 7, 1998Assignee: Leuna-Katalysatoren GmbHInventors: Rainer Schodel, Peter Birke, Reinhard Geyer, Peter Kraak, Willibald Muller, Hans-Dieter Neubauer, Rolf Pester, Fritz Vogt, Klaus-Peter Wendlandt
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Patent number: 5723677Abstract: The invention comprises a method for the oxidation of alkanes to alcohols and for decomposition of hydroperoxides to alcohols utilizing new compositions of matter, which are metal complexes of porphyrins. Preferred complexes have hydrogen, haloalkyl or haloaryl groups in meso positions, two of the opposed meso atoms or groups being hydrogen or haloaryl, and two of the opposed meso atoms or groups being hydrogen or haloalkyl, but not all four of the meso atoms or groups being hydrogen. Other preferred complexes are ones in which all four of the meso positions are substituted with haloalkyl groups and the beta positions are substituted with halogen atoms. A new method of synthesizing porphyrinogens is also disclosed.Type: GrantFiled: June 27, 1996Date of Patent: March 3, 1998Assignee: Sun Company, Inc. (R&M)Inventors: Tilak Wijesekera, James E. Lyons, Paul E. Ellis, Jr.
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Patent number: 5712402Abstract: A neutral templating route to mesoporous molecular sieves based on H-bonding and self-assembly between neutral primary amine or diamine surfactants (S.degree.) and neutral inorganic precursors (I.degree.) has been used to prepare hexagonal and lamellar mesoporous silicas with site isolated transition metal centers. This templating approach allows for the preparation of hexagonal or hexagonal-like mesoporous oxidation catalysts with large framework wall thickness of at least about 17 .ANG., small elementary particle size (.ltoreq.400 .ANG.), and unique combinations of framework-confined mesopores and textural mesopores while at the same time providing for facile recovery of the neutral template by simple solvent extraction.These new mesoporous metallosilicate molecular sieves exhibit exceptional catalytic activity for peroxide hydroxylation of benzene and oxidation of substituted aromatics with kinetic diameters that are too large (larger than 6 .ANG.Type: GrantFiled: March 23, 1995Date of Patent: January 27, 1998Assignee: Board of Trustees operating Michigan State UniversityInventors: Thomas J. Pinnavaia, Peter T. Tanev, Wenzhong Zhang, Jialiang Wang, Malama Chibwe
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Patent number: 5654487Abstract: Catalyst compositions for preparing polyketones comprising (a) a Group VIII metal compound, containing at least one ligand capable of coordinating to the Group VIII metal, and (b) a boron hydrocarbyl compound are disclosed, in particular catalyst compositions wherein the boron hydrocarbyl compound is a Lewis acid of the formula BXYZ where at least one of X, Y and Z is a monovalent hydrocarbyl group. A preferred catalyst composition comprises a palladium complex and B(C.sub.6 F.sub.5).sub.3.Type: GrantFiled: June 6, 1995Date of Patent: August 5, 1997Assignee: BP Chemicals LimitedInventors: Neil Andrew Cooley, Adrian Peter Kirk
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Patent number: 5585526Abstract: p-Dihydroxylated aromatic compounds are prepared via the oxidation of p-fuchsones, the latter advantageously being synthesized by reacting a phenolic compound having at least one hydrogen atom in the para-position to the hydroxyl function with a non-enolizable ketonic compound, in the presence of a catalytically effective amount of an acid catalyst and, optionally, a cocatalytically effective amount of an ionizable sulfur-containing compound.Type: GrantFiled: June 5, 1995Date of Patent: December 17, 1996Assignee: Rhone-Poulenc ChimieInventors: Michel Costantini, Daniel Manaut, Daniel Michelet
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Patent number: 5510537Abstract: A process for oxidizing silyl enone ethers to alpha, beta-unsaturated enodes having the formulas ##STR1## which comprises reacting the appropriate silyl enone ether with a radical generated by the metal catalyst decomposition of a peroxide composition.Type: GrantFiled: April 26, 1995Date of Patent: April 23, 1996Assignee: The Upjohn CompanyInventor: Paul M. Herrinton
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Patent number: 5406002Abstract: An organophosphine-treated titanium-containing zeolite is a catalyst for hydrocarbon oxidation.Type: GrantFiled: February 25, 1994Date of Patent: April 11, 1995Assignee: Exxon-Chemical Patents Inc.Inventors: Luc R. M. Martens, Georges M. K. Mathys
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Patent number: 5346873Abstract: A catalyst active in the preparation of alternating olefin/carbon monoxide (CO) copolymers is constituted by:(a) at least one salt of a metal of Group IB of the Periodic System,(b) a mono or bidentate ligand base containing one or two nitrogen or phosphorus atoms capable of linking to the metal atom by means of dative bonds,(c) a mineral or organic oxidizer agent.Also disclosed are the preparation of the catalyst and the use of said catalyst in alternated copolymerization of ethylene (C2) and/or other olefins with carbon monoxide (CO).Type: GrantFiled: March 11, 1993Date of Patent: September 13, 1994Assignee: Enichem S.p.A.Inventors: Anna Sommazzi, Gabriele Lugli, Fabio Garbassi, Fausto Calderazzo
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Patent number: 5298665Abstract: The invention relates to a process for preparing an alkanone and/or alkanol by oxidizing an alkane with 3-30 C-atoms, using oxygen, to form an alkyl hydroperoxide, followed by a decomposition of the resulting alkyl hydroperoxide in the presence of a metal compound immobilized on a carrier, which carrier carries aliphatic or aromatic amine groups or sulphide groups. The process is preferably applied to cycloalkanes.Type: GrantFiled: March 15, 1993Date of Patent: March 29, 1994Assignee: DSM N.V.Inventors: Ludovicus H. W. Janssen, Peter Hoogendoorn, Ubaldus F. Kragten, Henricus A. C. Baur
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Patent number: 5260486Abstract: Herein is disclosed a process for producing a .beta.-ketoalcohol by the oxidative ring-opening reaction of a 1,3-dioxane derivative, said .beta.-ketoalcohol being able to be a substrate for asymmetric reaction.Type: GrantFiled: August 4, 1992Date of Patent: November 9, 1993Assignee: Ajinomoto Co., Inc.Inventors: Kazuhiro Watanabe, Eiji Nakanishi, Takayuki Suzuki, Kunisuke Izawa
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Patent number: 5149880Abstract: Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxgen are disclosed. Processes whereby activated hydrogen peroxide or dioxygen are used to transform various organic substrates are also disclosed. In particular, processes for the conversion of methylenic carbons to carbonyls, for the dioxygenation of aryl olefins, acetylenes and aryl-.alpha.-diols, for the oxidation of alcohols and aldehydes and for the removal of mercaptans from gaseous streams and for the removal of hydrogen sulfide and/or mercaptans from liquid streams are disclosed.Type: GrantFiled: August 24, 1990Date of Patent: September 22, 1992Assignee: The Texas A & M University SystemInventors: Donald T. Sawyer, Ceshing Sheu, Andrzej Sobkowiak, Hui-Chan Tung
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Patent number: 5041680Abstract: Hydrogen peroxide and organic active oxygen-containing compounds in an organic stream, such as that from a methyl benzyl alcohol oxidate after hydrogen peroxide separation, are selectively decomposed by non-catalytic thermal treatment at 150.degree.-180.degree. C. for 20-60 minutes whereby the organic active oxygen materials selectively decompose to acetophenone and methyl benzyl alcohol.Type: GrantFiled: February 19, 1991Date of Patent: August 20, 1991Assignee: Arco Chemical Technology, Inc.Inventors: Rajendra S. Albal, Robert N. Cochran, Alan P. Woinsky
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Patent number: 5023390Abstract: A process for production of 2,6-dimethylnaphthalene is disclosed; comprising the steps: (1) an acylation step where 2,4-dimethylisobutyrophenone is produced from m-xylene, propylene and carbon monoxide: (2) a hydrogenation step where the carbonyl group of the above 2,4-dimethylisobutyrophenone is hydrogenated: and (3) a dehydrogenation and cyclization step where the above hydrogenated product is subjected to dehydrogenation and cyclization to produce the desired 2,6-dimethylnaphthalene. The process enables efficiently producing high quality or high purity 2,6-dimethylnaphthalene.Type: GrantFiled: September 12, 1989Date of Patent: June 11, 1991Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Takafumi Abe, Shuji Ebata, Hiroshi Machida, Koichi Kida
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Patent number: 5021607Abstract: Saturated hydrocarbon chains are oxidized using a titanium containing silicalite catalyst having an infra red absorption band around 950 cm.sup.-1 preferably in solutions, the chains may be alkanes or alkyl groups of alkyl cyclic compounds.Type: GrantFiled: September 10, 1990Date of Patent: June 4, 1991Assignee: Exxon Chemical Patents Inc.Inventor: Diana R. Huybrechts
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Patent number: 5008479Abstract: A process for production of 2,6-dimethylnaphthalene is disclosed, comprising the steps: (1) an acylation step where p-tolyl sec-butyl ketone is produced from toluene, n-butene and carbon monoxide: (2) a hydrogenation step where the carbonyl group of the p-tolyl sec-butyl ketone is hydrogenated: and (3) a dehydrogenation and cyclization step where the hydrogenated product obtained above is subjected to dehydrogenation and cyclization to produce the desired 2,6-dimethylnaphthalene. The process enables efficiently producing a high quality or high purity 2,6-dimethylnaphthalene.Type: GrantFiled: July 5, 1989Date of Patent: April 16, 1991Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Takafumi Abe, Seiji Uchiyama, Takahiro Ojima, Koichi Kida
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Patent number: 4994625Abstract: Hydrogen peroxide and organic active oxygen-containing compounds in an organic stream, such as that from a methyl benzyl alcohol oxidate after hydrogen peroxide separation, are selectively decomposed by contact with an alumina catalyst, the organic active oxygen materials selectively decomposing to acetophenone and methyl benzyl alcohol.Type: GrantFiled: December 27, 1989Date of Patent: February 19, 1991Assignee: Arco Chemical Technology, Inc.Inventors: Rajendra S. Albal, Robert N. Cochran