181 |
METHOD FOR PRODUCING KETOXIME |
US14087511 |
2013-11-22 |
US20140179951A1 |
2014-06-26 |
Shih-Yao Chao; Cheng-Fa Hsieh; Chien-Chang Chiang; Pin-To Yao |
A method for producing a ketoxime is provided. The method includes the step of performing a reaction of a nitrogen-containing compound, ketone and an oxidant by using a titanium-silicon molecular sieve as a catalyst, so as to form the ketoxime, thereby increasing the yield and selectivity of the ketoxime. |
182 |
Method for preparing titanium-silicalite molecular sieve and method for preparing cyclohexanone oxime using the molecular sieve |
US13344995 |
2012-01-06 |
US08753998B2 |
2014-06-17 |
Chien-Chang Chiang; Cheng-Fa Hsieh; Pin-To Yao; Shih-Yao Chao |
The present invention provides a method for preparing a titanium-silicalite molecular sieve, and a method for preparing cyclohexanone oxime using the titanium-silicalite molecular sieve. The method for preparing a titanium-silicalite molecular sieve includes the steps of preparing a mixture of a titanium source, a silicon source and a template agent, wherein the titanium source has a structure of formula (I); heating the mixture to form a gel mixture; mixing the gel mixture with water; heating the gel mixture mixed with the water in a water bath; and calcining the gel mixture mixed with the water. The method using the titanium-silicalite molecular sieve for preparing cyclohexanone oxime results in high conversion rate and high selectivity. |
183 |
Oxidation Of Cyclohexylbenzene |
US13819951 |
2011-08-16 |
US20140148569A1 |
2014-05-29 |
Jihad Mohammed Dakka; Francisco Manuel Benitez; Bryan Amrutlal Patel; Edmund John Mozeleski |
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. |
184 |
DITERPENOID DERIVATIVES ENDOWED OF BIOLOGICAL PROPERTIES |
US13951736 |
2013-07-26 |
US20130310423A1 |
2013-11-21 |
Alberto Cerri; Mauro Gobbini; Marco Torri; Patrizia Ferrari; Mara Ferrandi; Giuseppe Bianchi |
The present invention relates to new diterpenoid derivatives of formula (I), processes for their preparation, and to pharmaceutical compositions containing them for the treatment of cardiovascular disorders, urinary incontinence, asthma, or Alzheimer's disease and/or to prevent obstructive vascular lesions consequently to arteriotomy and/or angioplasty, and to prevent organ damage in hypertensive patients. |
185 |
Ammoximation process |
US12666343 |
2008-07-02 |
US08450526B2 |
2013-05-28 |
Robert Raja; John Meurig Thomas |
A redox ammoximation process in which a ketone or aldehyde is reacted with ammonia and oxygen in the presence of a catalyst; wherein the catalyst is an aluminophosphate based redox catalyst having at least two different redox catalytic sites comprising different transition metal atoms. |
186 |
Ammoximation process |
US13139930 |
2010-01-06 |
US08444917B2 |
2013-05-21 |
Robert Raja; Alexander James Paterson |
A redox ammoximation process in which a ketone or aldehyde is reacted with ammonia and oxygen in the presence of a catalyst, wherein: the catalyst is an aluminophosphate based redox catalyst having the qualitative general formula (I) M1M2AlPO-5 (I) in which M1 is at least one transition metal atom having redox catalytic capability; M2 is at least one metal atom in the (IV) oxidation state; M1 and M2 are different from each other; and a proportion of the phosphorous atoms in the M1M2AlPO-5 type structure are replaced by M2 atoms. |
187 |
ORDERED MESOPOROUS TITANOSILICATE AND THE PROCESS FOR THE PREPARATION THEREOF |
US13811235 |
2011-07-20 |
US20130116453A1 |
2013-05-09 |
Srinivas Darbha; Anuj Kumar |
The invention discloses three-dimensional, ordered, mesoporous titanosilicates wherein the Ti is in a tetrahedral geometry and exclusively substituted for Si in the silica framework. Such titanosilicates find use as catalysts for epoxidation, hydroxylation, C—H bond oxidation, oxidation of sulfides, aminolysis of epoxide and amoximation, with approx. 100% selectivity towards the products. |
188 |
Process of racemisation of optically active alpha aminoacetals |
US12601067 |
2008-05-21 |
US08350092B2 |
2013-01-08 |
Muriel Albalat; Geraldine Primazot; Didier Wilhelm; Jean-Claude Vallejos |
The invention relates to a process for preparing α-aminoacetals substantially in racemic form, comprising a step of oxidizing optically enriched α-aminoacetals to the corresponding oximes, in the presence of a catalyst, and a step of reducing the oximes thus obtained. |
189 |
TITANIUM-SILICALITE MOLECULAR SIEVE, METHOD FOR PREPARING THE SAME AND METHOD FOR PREPARING CYCLOHEXANONE OXIME USING THE MOLECULAR SIEVE |
US13345089 |
2012-01-06 |
US20120277468A1 |
2012-11-01 |
Ya-Ping Chen; Cheng-Fa Hsieh; Pin-To Yao; Chien-Chang Chiang |
The present invention provides a titanium-silicalite molecular sieve and a method for preparing the same. The method includes the steps of preparing a mixture of a titanium source, a silicon source, a transition metal source, a template agent and water; heating the mixture to form a gel mixture; heating the gel mixture in a water bath; and calcining the gel mixture after the gel mixture in the water bath to form the titanium-silicalite molecular sieve. The present invention further provides a method for preparing cyclohexanone oxime by using the titanium-silicalite molecular sieve as the catalyst which results in high conversion rate, high selectivity and high usage efficiency of hydrogen peroxide. |
190 |
METHOD FOR PREPARING TITANIUM-SILICALITE MOLECULAR SIEVE AND METHOD FOR PREPARING CYCLOHEXANONE OXIME USING THE MOLECULAR SIEVE |
US13344995 |
2012-01-06 |
US20120271066A1 |
2012-10-25 |
Chien-Chang Chiang; Cheng-Fa Hsieh; Pin-To Yao; Shih-Yao Chao |
The present invention provides a method for preparing a titanium-silicalite molecular sieve, and a method for preparing cyclohexanone oxime using the titanium-silicalite molecular sieve. The method for preparing a titanium-silicalite molecular sieve includes the steps of preparing a mixture of a titanium source, a silicon source and a template agent, wherein the titanium source has a structure of formula (I); heating the mixture to form a gel mixture; mixing the gel mixture with water; heating the gel mixture mixed with the water in a water bathe; and calcining the gel mixture mixed with the water. The method using the titanium-silicalite molecular sieve for preparing cyclohexanone oxime results in high conversion rate and high selectivity. |
191 |
Oxidation catalyst |
US12591266 |
2009-11-13 |
US08133834B2 |
2012-03-13 |
Ken Suzuki |
An oxidation catalyst for use in the oxidation of a substrate with a molecular oxygen, comprising at least one member selected from the group consisting of a specific hydrazyl radical (such as 2,2-diphenyl-1-picrylhydrazyl) and a specific hydrazine compound (such as 2,2-diphenyl-1-picrylhydrazine). A method for producing a chemical compound, comprising contacting a substrate with a molecular oxygen in the presence of the above-mentioned oxidation catalyst. |
192 |
METHOD FOR PRODUCING OXIME |
US13181969 |
2011-07-13 |
US20120016161A1 |
2012-01-19 |
Sho TSUJIUCHI |
The present invention provides a method for producing an oxime, comprising the step of an ammoximation reaction of a ketone with an organic peroxide and ammonia in the presence of a catalyst containing titanium and silicon oxide, wherein the catalyst containing titanium and a silicon oxide is a mesoporous silicate, and is subjected to a contact treatment with a silicon compound. |
193 |
AMMOXIMATION PROCESS |
US13139930 |
2010-01-06 |
US20110257390A1 |
2011-10-20 |
Robert Raja; Alexander James Paterson |
A redox ammoximation process in which a ketone or aldehyde is reacted with ammonia and oxygen in the presence of a catalyst, wherein: the catalyst is an aluminophosphate based redox catalyst having the qualitative general formula (I) M1M2AlPO-5 (I) in which M1 is at least one transition metal atom having redox catalytic capability; M2 is at least one metal atom in the (IV) oxidation state; M1 and M2 are different from each other; and a proportion of the phosphorous atoms in the M1M2AlPO-5 type structure are replaced by M2 atoms. |
194 |
Process for producing cycloalkanone oximes |
US11408061 |
2006-04-21 |
US08003825B2 |
2011-08-23 |
Masami Fukao; Miyuki Oikawa |
The present invention provides a process for producing a cycloalkanone oxime by conducting a continuous ammoximation reaction in the presence of a titanosilicate catalyst with supplying a cycloalkanone, hydrogen peroxide, ammonia and an organic solvent into the reaction system, wherein the reaction temperature is from 90° C. to 120° C. and the supplying amount of the organic solvent is not more than 2 times by weight of that of the cycloalkanone. |
195 |
Oxidation catalyst |
US12591266 |
2009-11-13 |
US20100069670A1 |
2010-03-18 |
Ken Suzuki |
An oxidation catalyst for use in the oxidation of a substrate with a molecular oxygen, comprising at least one member selected from the group consisting of a specific hydrazyl radical (such as 2,2-diphenyl-1-picrylhydrazyl) and a specific hydrazine compound (such as 2,2-diphenyl-1-picrylhydrazine). A method for producing a chemical compound, comprising contacting a substrate with a molecular oxygen in the presence of the above-mentioned oxidation catalyst. |
196 |
Method for Producing Oxime |
US12501779 |
2009-07-13 |
US20100016637A1 |
2010-01-21 |
Miyuki OIKAWA; Masaru KITAMURA |
The present invention provides a method for producing an oxime by carrying out an ammoximation reaction of a ketone with an organic peroxide and ammonia in a solvent in the presence of a titanosilicate, characterized in that the reaction is carried out by feeding the ketone and ammonia to a reactor in which the solvent, the titanosilicate and the organic peroxide are charged. |
197 |
Process for producing oxime |
US11014812 |
2004-12-20 |
US07161036B2 |
2007-01-09 |
Miyuki Oikawa; Masami Fukao |
A process for producing an oxime is provided, wherein the process comprises the step of reacting a ketone, hydrogen peroxide and ammonia in the presence of a crystalline titanosilicate having MWW structure under the condition that the ammonia concentration in the liquid portion of the reaction mixture is about 1% by weight or more. By the process, an ammoximation reaction of the ketone can be carried out with a high conversion of the ketone and a high selectivity to the oxime corresponding to the ketone, thereby producing the oxime with a high yield. |
198 |
Oxidation catalyst |
US10565886 |
2004-07-22 |
US20060229471A1 |
2006-10-12 |
Ken Suzuki |
An oxidation catalyst for use in the oxidation of a substrate with a molecular oxygen, comprising at least one member selected from the group consisting of a specific hydrazyl radical (such as 2,2-diphenyl-1-picrylhydrazyl) and a specific hydrazine compound (such as 2,2-diphenyl-1-picrylhydrazine). A method for producing a chemical compound, comprising contacting a substrate with a molecular oxygen in the presence of the above-mentioned oxidation catalyst. |
199 |
Production of a zeolite-containing solid |
US11044195 |
2005-01-28 |
US20060183629A1 |
2006-08-17 |
Ulrich Muller; Hartwig Voss; Erich Schubert; Friedrich Hill; Hermann Petersen |
In a process for concentrating an at least partially crystalline solid containing at least one zeolite in a mixture comprising at least one auxiliary, for example a template compound, and said solid, the mixture is ultrafiltrated in a step (II) to divide the mixture into a retentate and a permeate, the solids content in the retentate being higher than that in the mixture and the solids content in the permeate being lower than that in the mixture. This procedure allows auxiliaries, in particular template compounds, present in the permeate to be recycled into a crystallizing step (I) upstream of step (II). |
200 |
Process for producing oxime |
US11014812 |
2004-12-20 |
US20050137423A1 |
2005-06-23 |
Miyuki Oikawa; Masami Fukao |
A process for producing an oxime is provided, wherein the process comprises the step of reacting a ketone, hydrogen peroxide and ammonia in the presence of a crystalline titanosilicate having MWW structure under the condition that the ammonia concentration in the liquid portion of the reaction mixture is about 1% by weight or more. By the process, an ammoximation reaction of the ketone can be carried out with a high conversion of the ketone and a high selectivity to the oxime corresponding to the ketone, thereby producing the oxime with a high yield. |