序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
141 Conversion of alkanes to liquid oxygenates US10750984 2004-01-02 US20060009662A1 2006-01-12 John Waycuilis
A process is provided for converting an alkane to an oxygenated product by passing an alkane gas over a first fixed bed containing a higher valence bromide salt to produce an alkyl bromide, a hydrobromic acid, and a lower valence bromide salt. The alkyl bromide and hydrobromic acid are conveyed as a gas to a second fixed bed containing a metal oxide and are passed over the second fixed bed to produce the first bromide salt and the oxygenated product. The metal oxide in the second fixed bed is regenerated by passing oxygen over the second fixed bed producing the metal oxide and bromine. The bromine is conveyed as a gas from the second fixed bed to the first fixed bed. The first bromide salt of the first fixed bed is regenerated by passing the bromine over the first fixed bed producing the first bromide salt.
142 Long-term operation of a heterogeneously catalyzed gas phase partial oxidation of at least one organic compound US11121986 2005-05-05 US20050261517A1 2005-11-24 Martin Dieterle; Gerhard Laqua; Klaus Mueller-Engel
A process for the long-term operation of a heterogeneously catalyzed gas phase partial oxidation of at least one organic compound over a catalyst bed, in which, in order to counteract the deactivation of the catalyst bed, the working pressure in the gas phase is increased during the operating time of the catalyst bed.
143 Method for oxidizing hydrocarbons US10239215 2001-03-22 US06852893B2 2005-02-08 Adolf Kühnle; Mark Duda; Carsten Jost; Guido Fries; Jochen Kirchhoff; Thomas Schiffer; Roger Arthur Sheldon; Sasidharan Manickam; Isabella W. C. E. Arends
The invention relates to a method for oxidizing substrates such as hydrocarbons, waxes or soot. The method involves the use of a compound of formula (I) in which: R1 and R2 represent H, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, each having 1 to 20 hydrocarbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, whereby R1 and R2 designate identical or different radicals or R1 and R2 can be linked to one another via a covalent bonding; Q1 and Q2 represent C, CH, N, CR5, each being the same or different; X and Z represent C, S, CH2, each being the same or different; Y represents O and OH; k=0, 1, 2; l=0, 1, 2; m=1 to 3, and; R5 represents one of the meanings of R1. Said compound is used as a catalyst in the presence of a radical initiator, whereby the molar ratio of the catalyst to the hydrocarbon is less than 10 mol %. Peroxy compounds or azo compounds can be used as the radical initiator. Preferred substrates are aliphatic or aromatic hydrocarbons.
144 Method for producing organic compound by substituting halogen atoms US10864533 2004-06-10 US20040256743A1 2004-12-23 Setsuko Funaki; Yoshiteru Taniguchi; Tadahito Nobori; Yoshihiro Yamamoto; Isao Hara; Takaomi Hayashi; Kazumi Mizutani; Shinji Kiyono
A method for producing an organic compound having Q, the method including a step of reacting a compound represented by general formula (2) with an organic starting material having at least one halogen atom bonded to a carbon atom having four null bonds so as to replace the halogen atom in the organic starting material with Q: MQanullnull(2) wherein M, Q and a are defined in the presence of a compound represented by general formula (1) 1 wherein Znull and Rs are also defined.
145 Method for producing saturated alcohols, ketones, aldehydes and carboxylic acids US10482777 2004-06-25 US20040249197A1 2004-12-09 Adolf Kuhnle; Carsten Jost; Roger Arthur Sheldon; Sandrine M.M. Chatel; Isabella W.C.E. Arends
The invention relates to a method for catalytically oxidizing unsaturated hydrocarbons to form oxidation products, and to the production of saturated alcohols, ketones, aldehydes or carboxylic acids by subsequently hydrogenating the oxidation product. A compound of formula (I) is used as a catalyst during oxidizing in which: R1, R2nullH, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, each having 1 to 20 carbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, whereby R1 and R2 signify identical or different radicals or R1 and R2 can be coupled to one another via a covalent bond, with Q1, Q2nullthe same or different, C, CH, N; X, ZnullC, S or CH2; YnullO or OH; knull0, 1 or 2; 1null0, 1 or 2; mnull1 to 100 in the presence of a radical initiator. Peroxy compounds or azo compounds can be used as radical initiators. Preferred substrates are cyclic aliphatic or aromatic compounds.
146 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.
147 Process for producing oxide with higher oxidation than alcohol US09959844 2001-11-28 US06797830B2 2004-09-28 Hideo Tanaka; Yutaka Kameyama
The present invention provides a process for producing an oxide from an alcohol compound, the process comprising the steps of causing silica gel to carry the alcohol compound thereon and an oxidative catalyst thereon, and oxidizing the alcohol compound in the presence of an oxidizing agent, giving an oxide higher in oxidizing degree than the alcohol compound, and also provides a process for producing an oxide from an alcohol compound, the process comprising the steps of causing silica gel to carry the alcohol compound, and subjecting the alcohol compound to an electrolytic oxidation, giving an oxide higher in oxidizing degree than the alcohol compound.
148 Catalytic oxidation of organic substrates by transition metal complexes in organic solvent media expanded by supercritical or subcritical carbon dioxide US10205863 2002-07-26 US06740785B2 2004-05-25 Bala Subramaniam; Daryle H. Busch; Ghezai T. Musie; Ming Wei
Improved oxidation methods are provided wherein a reaction mixture comprising a substrate to be oxidized (e.g., phenols, alkenes) and an oxidation catalyst (typically dispersed in an organic solvent system) is supplemented with a compressed gas which expands the reaction mixture, thus accelerating the oxidation reaction. In preferred practice pressurized subcritical or supercritical carbon dioxide is used as the expanding gas, which is introduced into the reaction mixture together with an oxidizing agent. The inventive methods improve the substrate conversion and product selectivity by increasing the solubility of the oxidizing agent in the reaction mixture.
149 Oxidative reactions using membranes that selectively conduct oxygen US10130822 2002-05-23 US06730808B2 2004-05-04 Stefan Bitterlich; Hartwig Voss; Hartmut Hibst; Andreas Tenten; Ingolf Voigt; Ute Pippardt
Reactor membranes for used in oxidation reactions of hydrocarbons involving oxygen comprising a selective oxidation catalyst on a mixed conducting, oxide ion selective ceramic membrane of the composition (Sr1-xCax)1-yAyMn1-zBzO3-&dgr;, where A is Ba, Pb, Na, K, Y, an element of the lanthanide group or a combination thereof, B is Mg, Al, Ga, In, Sn, an element of the 3d or 4d period or a combination thereof, x is from 0.2 to 0.8, y is from 0 to 0.4, z is from 0 to 0.6, and &dgr; is a number, dependent on x, y and z, that renders the composition charge neutral.
150 Method for oxidizing hydrocarbons US10453754 2003-06-03 US20030204102A1 2003-10-30 Markus Weisbeck; Ernst Ulrich Dorf; Gerhard Wegener; Christoph Schild
The present invention relates to a catalyst for oxidizing hydrocarbons with a hydrogen/oxygen mixture. The catalyst contains a) a support material containing titanium and b) silver particles having an average particle size of from 0.3 to 100 nm.
151 Method for oxidizing hydrocarbons US10239215 2003-01-15 US20030176733A1 2003-09-18 Adolf Knullnhle; Mark Duda; Carsten Jost; Guido Fries; Jochen Kirchhoff; Thomas Schiffer
The invention relates to a method for oxidizing substrates such as hydrocarbons, waxes or soot. The method involves the use of a compound of formula (I) in which: R1 and R2 represent H, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, each having 1 to 20 hydrocarbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, whereby R1 and R2 designate identical or different radicals or R1 and R2 can be linked to one another via a covalent bonding; Q1 and Q2 represent C, CH, N, CR5, each being the same or different; X and Z represent C, S, CH2, each being the same or different; Y represents O and OH; knull0, 1, 2; lnull0, 1, 2; mnull1 to 3, and; R5 represents one of the meanings of R1. Said compound is used as a catalyst in the presence of a radical initiator, whereby the molar ratio of the catalyst to the hydrocarbon is less than 10 mol %. Peroxy compounds or azo compounds can be used as the radical initiator. Preferred substrates are aliphatic or aromatic hydrocarbons.
152 Process for producing oxide with higher oxidation than alcohol US09959844 2001-11-28 US20030114712A1 2003-06-19 Hideo Tanaka; Yutaka Kameyama
The present invention provides a process for producing an oxide from an alcohol compound, the process comprising the steps of causing silica gel to carry the alcohol compound thereon and an oxidative catalyst thereon, and oxidizing the alcohol compound in the presence of an oxidizing agent, giving an oxide higher in oxidizing degree than the alcohol compound, and also provides a process for producing an oxide from an alcohol compound, the process comprising the steps of causing silica gel to carry the alcohol compound, and subjecting the alcohol compound to an electrolytic oxidation, giving an oxide higher in oxidizing degree than the alcohol compound.
153 Catalytic oxidation of organic substrates by transition metal complexes in organic solvent media expanded by supercritical or subcritical carbon dioxide US09545214 2000-04-07 US06448454B1 2002-09-10 Bala Subramaniam; Daryle H. Busch; Ghezai T. Musie; Ming Wei
Improved oxidation methods are provided wherein a reaction mixture comprising a substrate to be oxidized (e.g., phenols, alkenes) and an oxidation catalyst (typically dispersed in an organic solvent system) is supplemented with a compressed gas which expands the reaction mixture, thus accelerating the oxidation reaction. In preferred practice pressurized subcritical or supercritical carbon dioxide is used as the expanding gas, which is introduced into the reaction mixture together with an oxidizing agent. The inventive methods improve the substrate conversion and product selectivity by increasing the solubility of the oxidizing agent in the reaction mixture.
154 Method for regenerating a zeolitic catalyst US10061282 2002-02-04 US20020082159A1 2002-06-27 Georg Heinrich Grosch; Ulrich Mueller; Andreas Walch; Norbert Rieber; Wolfgang Harder
A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600null C. in an atmosphere which contains less than 2% by volume of oxygen, (II) treating the catalyst at from 250 to 800null C., preferably from 350 to 600null C., with a gas stream which contains from 0.1 to 4% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof, and (III) treating the catalyst at from 250 to 800null C., preferably from 350 to 600null C., with a gas stream which contains from more than 4 to 100% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof.
155 Radioactive seeds for brachytherapy and a process for making the same US09191672 1998-11-13 US06391279B1 2002-05-21 Prahlad R. Singh; Gerald P. Tercho; Jack N. Wentz; Keith R. Olewine
Novel radioactive seeds for brachytherapy and a reproducible method of manufacturing the seeds is described, wherein the seeds contain either Pd-103 or I-125 disposed within a cured resin matrix.
156 Process for preparing alkylene oxide adducts US13208998 1998-08-10 US6372927B2 2002-04-16 TATSUMI NOBUHIRO; OGURA YOSHIKAZU; KATAYAMA TAKANOBU; TABATA OSAMU
The process for preparing an alkylene oxide adduct, including the steps of feeding an organic compound having active hydrogen and an alkylene oxide to a reaction column packed with a solid catalyst, and carrying out addition reaction of the organic compound having active hydrogen with an alkylene oxide in a gas-liquid fixed bed reaction, wherein the alkylene oxide is in a state of gas and the organic compound having active hydrogen is in a state of liquid.
157 Process for photo-induced partial oxidation of organic chemicals to alcohols, ketones, and aldehydes using flame deposited non-structured photocatalysts US09906810 2001-07-18 US20020029955A1 2002-03-14 Endalkachew Sahle-Demessie; Pratim Biswas; Michale A. Gonzalez; Zhong-Min Wang; Subhas K. Sikdar
Organic molecules are partially oxidized in that the gas phase on supported and immobilized photocatalysts deposited having a nanostructure. the photocatalysts are semiconductors such as titanium dioxide and are preferentially coated onto a substrate by flame aerosol coating.
158 PROCESS FOR PREPARING ALKYLENE OXIDE ADDUCTS US09132089 1998-08-10 US20020010350A1 2002-01-24 NOBUHIRO TATSUMI; YOSHIKAZU OGURA; TAKANOBU KATAYAMA; OSAMU TABATA
The process for preparing an alkylene oxide adduct, including the steps of feeding an organic compound having active hydrogen and an alkylene oxide to a reaction column packed with a solid catalyst, and carrying out addition reaction of the organic compound having active hydrogen with an alkylene oxide in a gas-liquid fixed bed reaction, wherein the alkylene oxide is in a state of gas and the organic compound having active hydrogen is in a state of liquid.
159 Addition reaction of hydroxyl-containing compounds with alkynes or allenes US92058 1998-06-05 US6060035A 2000-05-09 Joaquim Henrique Teles; Norbert Rieber; Klaus Breuer; Dirk Demuth; Hartmut Hibst; Alfred Hagemeyer
Compounds of the formulae I and II ##STR1## are prepared by an addition reaction of a compound of the formula IIIR.sup.1 OH IIIwith an acetylene or allene of the formula IV or V ##STR2## where R.sup.1 and R are as defined, in the gas phase at elevated temperatures in the presence of a heterogeneous, silicate-containing catalyst, by a process in which the catalyst used is one which contains or consists of, as the active component, a zinc silicate obtained by precipitation in aqueous solution from a soluble silicon compound and zinc compound, zinc silicate beinga) an essentially X-ray amorphous zinc silicate of the formula VIZn.sub.a Si.sub.c O.sub.a+2c-0.5e (OH).sub.e.fH.sub.2 O VI, where e is from 0 to 2a+4c and the ratio a:c is from 1 to 3.5, and the ratio f:a is from 0 to 200, and/orb) a crystalline zinc silicate having the structure of hemimorphite of the formula Zn.sub.4 Si.sub.2 O.sub.7 (OH).sub.2.H.sub.2 O.
160 Process for catalytic addition of nucleophiles to alkynes or allenes US91235 1998-06-15 US6037482A 2000-03-14 Michael Schulz; Joaquim Henrique Teles
A process for the catalytic addition of nucleophilic agents to alkynes or allenes to form alkenes substituted by the nucleophile which may further react with the nucleophile and/or isomerize comprises using a catalyst comprising a wholly or partly ionized complex of univalent gold.
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