Oxirane Ring Formed Patents (Class 549/518)
  • Patent number: 11358923
    Abstract: The present invention relates to a method of preparing cyclododecanone. According to the present invention, a method of preparing cyclododecanone which allows implementation of a high conversion rate and minimization of production of unreacted materials and reaction by-products may be provided. In addition, the present invention implements a high conversion rate and a high selectivity even by a simplified process configuration, and thus may be usefully utilized in an economical method of preparing laurolactam, allowing commercially easy mass production.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: June 14, 2022
    Inventors: Jiyeon Kim, Jeongseok Park, Jinho Park, Kyuho Song
  • Patent number: 10800809
    Abstract: The present invention relates to an improved process for the preparation of carfilzomib or a pharmaceutically acceptable salt thereof. The present invention also relates to a process for the preparation of amorphous form of carfilzomib.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: October 13, 2020
    Assignee: Laurus Labs Limited
    Inventors: Sanjay Kumar Dehury, Nagaraju Mekala, Jahangeer Baba Shaik, Srinivasa Rao Buddepu, Lakshmi Kanth Kola, Venkata Sunil Kumar Indukuri, Seeta Rama Anjaneyulu Gorantla, Satyanarayana Chava
  • Patent number: 10766021
    Abstract: Disclosed is a propylene direct oxidation reaction catalyst capable of preparing a propylene oxide from propylene and oxygen at a higher yield than catalysts prepared by conventional methods, by applying a specific transition metal oxide promoter in preparation of a catalyst containing silver, a transition metal oxide promoter and a carrier through a slurry process. The present invention provides a propylene direct oxidation reaction catalyst, which is a supported silver catalyst used for preparing a propylene oxide from the propylene direct oxidation reaction, the catalyst including a molybdenum oxide and a tungsten oxide as a catalyst promoter.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: September 8, 2020
    Assignees: Lotte Chemical Corporation, Seoul National University R&DB Foundation
    Inventors: Joong Won Lee, Hyung Ki Min, Young Jong Seo, In Kyu Song, Eo Jin Lee, Jong Heop Yi
  • Patent number: 10625244
    Abstract: An oxidative coupling of methane (OCM) catalyst composition comprising one or more oxides doped with Ag; wherein one or more oxides comprises a single metal oxide, mixtures of single metal oxides, a mixed metal oxide, mixtures of mixed metal oxides, or combinations thereof; and wherein one or more oxides is not La2O3 alone. A method of making an OCM catalyst composition comprising calcining one or more oxides and/or oxide precursors to form one or more calcined oxides, wherein the one or more oxides comprises a single metal oxide, mixtures of single metal oxides, a mixed metal oxide, mixtures of mixed metal oxides, or combinations thereof, wherein the one or more oxides is not La2O3 alone, and wherein the oxide precursors comprise oxides, nitrates, carbonates, hydroxides, or combinations thereof; doping the one or more calcined oxides with Ag to form the OCM catalyst composition; and thermally treating the OCM catalyst composition.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: April 21, 2020
    Assignee: Sabic Global Technologies, B.V.
    Inventors: Wugeng Liang, Vidya Sagar Reddy Sarsani, David West, Hector Perez, Aghaddin Mamedov, Istvan Lengyel, James Lowrey
  • Patent number: 10597374
    Abstract: The integrated process comprises a step a) of dehydrogenating propane providing a stream S1 comprising propane and propene; a step b) of separating stream S1 in at least one rectification column, providing an overhead product stream S2 comprising more than 99% by weight propene, a side stream S3 comprising from 90 to 98% by weight propene and a bottoms product stream S4 enriched in propane; a step c) of reacting propene with hydrogen peroxide in the presence of an epoxidation catalyst using propene in molar excess; and a step d) of separating non-reacted propene and propene oxide from the reaction mixture of step c) providing a propene oxide product and a stream S5 comprising propene and propane; wherein stream S3 is passed to step c), stream S5 is recycled to step b) and stream S4 is recycled to step a).
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 24, 2020
    Assignees: Evonik Operations GmbH, thyssenkrupp Industrial Solutions AG
    Inventors: Holger Wiederhold, David Bolz, Georg Friedrich Thiele
  • Patent number: 10183900
    Abstract: Integrated systems are provided for the production of higher hydrocarbon compositions, for example liquid hydrocarbon compositions, from methane using an oxidative coupling of methane system to convert methane to ethylene, followed by conversion of ethylene to selectable higher hydrocarbon products. Integrated systems and processes are provided that process methane through to these higher hydrocarbon products.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: January 22, 2019
    Assignee: SILURIA TECHNOLOGIES, INC.
    Inventors: Greg Nyce, Erik C. Scher, Ajay Madgavkar, Samuel Weinberger, Rahul Iyer, Lawrence Peck, Joel Herger, Benjamin Saydah
  • Patent number: 10106417
    Abstract: Provided is a method of manufacturing graphene by unzipping doped carbon materials by an external stimulus and a graphene manufactured therefrom.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: October 23, 2018
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sang Ouk Kim, Joonwon Lim, Ho Jin Lee
  • Patent number: 9676737
    Abstract: The present invention concerns a process for converting biomass into useful organic building blocks for the chemical industry. The process involves the use of molybdenum catalysts of the formula Aa+a(MovXxR1yR2zR3e)a*3?, which may be readily prepared from industrial molybdenum compounds.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: June 13, 2017
    Assignee: Danmarks Tekniska Universitet
    Inventors: Johannes Rytter Dethlefsen, Peter Fristrup
  • Patent number: 9643153
    Abstract: A homogeneous catalyst system is removed from a reaction mixture of two liquid phases by separating the two liquid phases with a membrane having at least one separation-active layer in such a way that the homogeneous catalyst system is at least partially concentrated in a membrane retentate; wherein the reaction mixture contains at least one partially epoxidized cyclic unsaturated compound having twelve carbon atoms; and wherein the membrane separation-active layer contains crosslinked a silicone acrylate and/or polydimethylsiloxane and/or polyimide.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: May 9, 2017
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Ralf Meier, Kévin Micoine, Peter Kreis, Frederik Gluth, Markus Priske
  • Patent number: 9518035
    Abstract: A method for preparing glycidol using glycerol includes mixing glycerol with urea in the presence of at least one zinc-based catalyst selected from the group consisting of Zn(NO3)2, ZnCl2, ZnO and Zn(OAc)2 under a pressure of 0.5-10 kPa at a temperature of 100-170° C. to obtain glycerol carbonate; filtering the glycerol carbonate mixed with the zinc-based catalyst through an adsorbent including a polymer resin coordinated with amine groups to separate the zinc-based catalyst and glycerol carbonate from each other; and carrying out reaction of the glycerol carbonate separated from the zinc-based catalyst in the presence of an anion alkali metal salt catalyst that is Na, K, Rb, Cs or a mixture thereof containing at least one anion selected from the group consisting of Cl?, Br?, I?, NO3?, NO2? and acetate under a pressure of 0.13-6.67 kPa at a temperature of 140-250° C. to obtain glycidol.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: December 13, 2016
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Joo Lee, Byoung Sung Ahn, Sang Deuk Lee, Ji Sik Choi, Hyejeong Lee, Hye Jin Lee
  • Patent number: 9447061
    Abstract: The present invention pertains to a process for preparing a product rich in epichlorohydrin, comprising the steps of: a) reacting a mixture of dichlorohydrin and a base at a temperature in the range of 0-40° C. during a period of time in the range from 1 second to 180 minutes, wherein the base is present in a less than stoichiometric amount, to obtain a reaction mixture comprising epichlorohydrin and brine; b) subjecting at least part of the reaction mixture to a separation step to form a product fraction which is rich in epichlorohydrin and a brine fraction which is lean in epichlorohydrin; c) subjecting at least part of the brine fraction to a purification step to yield a purified brine. It has been found that the process according to the invention allows the manufacture of epichlorohydrin from dichlorohydrin on an industrial scale at high yield, while at the same time providing a brine with a low total organic carbon content without extensive separation being necessary.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: September 20, 2016
    Assignee: Akzo Nobel Chemicals International B.V.
    Inventors: Carolina Anna Maria Christina Dirix, André Michiel Koolaard, Antoon Jacob Berend Ten Kate, Eilertdina Henderika Renkema
  • Patent number: 9199950
    Abstract: Disclosed is a method for producing glycidol by successive catalytic reactions. The method includes a series of reactions for the preparation of glycerol carbonate from glycerol and the decarboxylation of the glycerol carbonate. Specifically, the method includes i) reacting glycerol with a dialkyl carbonate to prepare glycerol carbonate, and ii) subjecting the glycerol carbonate to decarboxylation wherein a base is added as a catalyst in step i) and is allowed to react with an acid to form a metal salt after step i), and the salt is used as a catalyst in step ii). According to the method, inexpensive and easy-to-purchase acid and base catalysts can be used to produce glycidol from glycerol, a by-product of biodiesel production, as a starting material in high yield with high selectivity in a convenient, simple, and environmentally friendly way. In addition, the method eliminates the need to separate the base catalyst.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: December 1, 2015
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Joo Lee, Byoung Sung Ahn, Sang Deuk Lee, Jungho Jae, Ji Sik Choi
  • Patent number: 9035108
    Abstract: Provided are a method of preparing a chlorohydrin composition and a method of preparing epichlorohydrin by using a chlorohydrin composition prepared by using the method. The method of preparing chlorohydrins in which polyhydroxy aliphatic hydrocarbon is reacted with a chlorination agent in the presence of a catalyst includes performing at least one combination of a series of unit operations comprising a first reaction step, a water removal step, and a second reaction step in this stated order, wherein the method further includes mixing a chlorohydrin concentrate obtained by purifying the reaction mixture discharged from the final reaction step from among the reaction steps and a water-rich layer discharged from the water-removal step and diluting the mixture with water. The method of preparing epichlorohydrin includes contacting the chlorohydrin composition prepared by using the method of preparing a chlorohydrin composition with an alkaline agent.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG FINE CHEMICALS CO., LTD.
    Inventors: Won Seob Song, Sung Yul Woo, Boo Weon Song, Seong Han Park, Myoung Suk Kwon
  • Patent number: 9006465
    Abstract: An epoxy group-containing a fluorene compound has a methallyl group at the end thereof and is represented by the following general formula (1): wherein R represents a hydrogen atom or a methyl group. The compound gives a compound excellent in regioselectivity at the time of hydrosilylation with a Si—H containing organosilicon compound, with a less formed amount of an internally added ? adduct, as compared with the conventionally known fluorene compound having an allyl group, so that heat resistance of the resulting organosilicon compound is expected to be improved whereby it is a useful compound.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: April 14, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Hideyoshi Yanagisawa
  • Publication number: 20150099876
    Abstract: This invention relates to molecular catalysts and chemical reactions utilizing the same, and particularly to molecular catalysts for efficient catalytic oxidation of hydrocarbons, such as hydrocarbons from natural gas. The molecular catalytic platform provided herein is capable of the facile oxidation of hydrocarbons, for example, under ambient conditions such as near room temperature and atmospheric pressure.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 9, 2015
    Inventors: Sunney Ignatius CHAN, Sheng-Fa YU, Penumaka NAGABABU, Suman MAJI, Ping-Yu CHEN, Ravirala RAMU, Chung-Yuan MOU, Chih-Cheng LIU
  • Patent number: 8969600
    Abstract: Disclosed is a method for producing glycidol by decarboxylation of glycerol carbonate. In the method, an ionic liquid catalyst is added for the reaction. According to the method glycidol can be produced in high yield and selectivity. The method enables the production of glycidol in an easy, simple and environmentally friendly way.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: March 3, 2015
    Assignee: Korea Institute of Science and Technology
    Inventors: Hyun Joo Lee, Sang Deuk Lee, Byoung Sung Ahn, Chang Soo Kim, Ji Sik Choi
  • Patent number: 8969630
    Abstract: A method of preparing chlorohydrins and a method of preparing epichlorohydrin by using chlorohydrins prepared using the method are provided. The method of preparing chlorohydrins by reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst includes at least one combination of a series of unit operations including a first reaction step, a water removal step, and a second reaction step, in that respective order, wherein the method further includes purifying chlorohydrins from a reaction mixture discharged from a final reaction step of the plurality of reaction steps. The method of preparing epichlorohydrin includes reacting chlorohydrins prepared using the method of preparing chlorohydrins, with an alkaline agent.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: March 3, 2015
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Won Seob Song, Sung Yul Woo, Boo Weon Song, Seong Han Park, Myoung Suk Kwon
  • Patent number: 8921584
    Abstract: A composition is provided that contains an intermediate for a water-soluble monomer, wherein this intermediate is suitable for producing a water-soluble polyalkylene glycol-type monomer that has a polymerizable terminal double bond, and suitable for the production of water-soluble polymer, and moreover allows the high-yield production of water-soluble polymer. A process of producing this composition and a water-soluble monomer-containing composition obtained therefrom are also provided. A water-soluble monomer is also provided that can be used as a starting material for a water-soluble polymer that even at high hardnesses exhibits an excellent capacity to capture metal ions such as the calcium ion and magnesium ion, an excellent anti-gelation performance, an excellent anti-soil redeposition performance, a better anti-dye transfer performance than in the past, and also an excellent compatibility with surfactants.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: December 30, 2014
    Assignee: Nippon Shokubai Co, Ltd
    Inventors: Atsuro Yoneda, Makoto Saito, Aki Tsukajima, Daisuke Michitaka, Mitsuaki Makino
  • Patent number: 8916732
    Abstract: A method of preparing chlorohydrins and a method of preparing epichlorohydrin using chlorohydrins prepared by using the same method are provided. The method is to prepare chlorohydrins by reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst, and the method includes at least one combination of a series of unit operations including the following steps in the following stated order: a first reaction step; a water removal step; and a second reaction step, wherein the water removing step is performed by distillation operation based on a boiling point difference between constituents of a reaction mixture. The method of preparing epichlorohydrin includes reacting chlorohydrins prepared by using the method of preparing chlorohydrins with an alkaline agent.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: December 23, 2014
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Won Seob Song, Sung Yul Woo, Boo Weon Song, Seong Han Park, Myoung Suk Kwon
  • Publication number: 20140275584
    Abstract: Methods, catalysts, and reactor systems for producing in high yield aromatic chemicals and liquid fuels from a mixture of oxygenates comprising di- and polyoxygenates are disclosed. Also disclosed are methods, catalysts, and reactor systems for producing aromatic chemicals and liquid fuels from oxygenated hydrocarbons such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like; and methods, catalysts, and reactor systems for producing the mixture of oxygenates from oxygenated hydrocarbons such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like. The disclosed catalysts for preparing the mixture of oxygenates comprise a NinSnm alloy and a crystalline alumina support.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Virent, Inc.
    Inventors: Taylor Beck, Brian Blank, Casey Jones, Elizabeth Woods, Randy Cortright
  • Patent number: 8822710
    Abstract: The invention relates to an integrated process for preparing an epoxide from an oxygenate, wherein the production of a lower olefin from the oxygenate and the subsequent epoxidation of the lower olefin is combined and wherein isobutene, a by-product of the lower olefin production, is converted into a hydroperoxide that is used for the conversion of the lower olefin into the corresponding epoxide.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: September 2, 2014
    Assignee: Shell Oil Company
    Inventors: Leslie Andrew Chewter, Hervé Henry, Pieter Oldenhove, Rajaram Ramesh, Jeroen Van Westrenen
  • Patent number: 8791280
    Abstract: This invention relates to catalyst carriers to be used as supports for metal and metal oxide catalyst components of use in a variety of chemical reactions. More specifically, the invention provides a process of formulating an alpha alumina carrier that is suitable as a support for silver and the use of such catalyst in chemical reactions, especially the epoxidation of ethylene to ethylene oxide. The composition comprises at least one hydrated precursor of alpha alumina; an optional alpha alumina; and a binder. The composition is substantially free of seeding particles.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: July 29, 2014
    Assignee: SD Lizenzverwertungsgesellschaft mbH & Co. KG
    Inventor: Nabil Rizkalla
  • Patent number: 8759553
    Abstract: Provided is a safe and simple method for producing an epoxy compound, wherein a compound with a carbon-carbon double bond is epoxidized by using hydrogen peroxide as an oxidizing agent in the presence of acetonitrile, wherein there is no need for concentration of a reaction mixture that contains residual hydrogen peroxide. A method for producing an epoxy compound wherein a compound with a carbon-carbon double bond is epoxidized by using hydrogen peroxide as an oxidizing agent, in the presence of acetonitrile, comprises a first step of adding water and an organic solvent that is incompatible with water and does not dissolve an acetamide by-product of the epoxidation reaction to a reaction mixture, upon completion of the epoxidation reaction, to dissolve the acetamide in the water, a second step of separating an organic layer and an aqueous layer, and a third step of subjecting the organic layer to reduction treatment, and then rinsing and concentrating it to provide an epoxy compound.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: June 24, 2014
    Assignee: Showa Denko K.K.
    Inventors: Yoshikazu Arai, Hiroshi Uchida
  • Patent number: 8759551
    Abstract: The invention provides a process for continuously producing a urethane (meth)acrylate, containing causing a mixed liquid of a compound (A) having a hydroxyl group and a (meth) acryloyl group and a compound (B) having an isocyanate group to pass continuously and densely through a tubular microchannel formed in a heat-conducting reaction device, and reacting the hydroxyl group of the compound (A) with the isocyanate group of the compound (B).
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: June 24, 2014
    Assignee: DIC Corporation
    Inventors: Fumihiko Ishiyama, Takeshi Hizawa, Hideki Watanabe
  • Publication number: 20140155638
    Abstract: The present invention provides an efficient method of synthesizing and purifying dianhydrohexitols such as dianhydrogalactitol. In general, as applied to dianhydrogalactitol, the method comprises: (1) reacting dulcitol with a concentrated solution of hydrobromic acid at a temperature of about 80° C. to produce dibromogalactitol; (2) reacting the dibromogalactitol with potassium carbonate in t-butanol to produce dianhydrogalactitol; and (3) purifying the dianhydrogalactitol using a slurry of ethyl ether to produce purified dianhydrogalactitol. Another method produces dianhydrogalactitol from dulcitol; this method comprises: (1) reacting dulcitol with a reactant to convert the 1,6-hydroxy groups of dulcitol to an effective leaving group to generate an intermediate; and (2) reacting the intermediate with an inorganic weak base to produce dianhydrogalactitol through an intramolecular SN2 reaction. Other methods for the synthesis of dianhydrogalactitol from dulcitol are described.
    Type: Application
    Filed: July 2, 2013
    Publication date: June 5, 2014
    Inventor: DENNIS M. BROWN
  • Patent number: 8741255
    Abstract: Peroxo-carbonates derived from molten alkali and/or Group II metal salts, particularly carbonate salts are used as catalysts in oxidation and epoxidation reactions. Transition metal compounds may be included to improve the selectivity of the reactions.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: June 3, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Helge Jaensch, Gary David Mohr
  • Publication number: 20140135512
    Abstract: Disclosed is a method for producing glycidol by decarboxylation of glycerol carbonate. In the method, an ionic liquid catalyst is added for the reaction. According to the method glycidol can be produced in high yield and selectivity. The method enables the production of glycidol in an easy, simple and environmentally friendly way.
    Type: Application
    Filed: February 5, 2013
    Publication date: May 15, 2014
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Joo LEE, Sang Deuk LEE, Byoung Sung AHN, Chang Soo KIM, Ji Sik CHOI
  • Patent number: 8722881
    Abstract: A tetradendate amide based macrocyclic ligand and its Fe(III) complex which act as activators of hydrogen peroxide. The synthetic methodology to develop the ligands is new, simple and provides better yield for each step of the ligand synthesis. The Fe(III)-complexes and hydrogen peroxide together are can perform several environmentally benign oxidation reactions. Organic dye bleaching, bleaching of pulp and paper effluent and N-oxide synthesis may be performed using the newly developed catalyst and hydrogen peroxide. Alcohol oxidation and alkene epoxidation may also be performed using the catalysts and hydrogen peroxide.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 13, 2014
    Assignee: Board of Trustees of the University of Arkansas
    Inventors: Anindya Ghosh, Shane Z. Sullivan, Samuel L. Collom, Sharon Pulla
  • Publication number: 20140121346
    Abstract: A novel process and apparatus is disclosed for performing chemical reactions. Highly compressed gaseous streams such as H2, CO, CO2, H2O, O2, or CH4 are raised to Mach speeds to form supersonic jets incorporating shockwaves. Two or more such jets are physically collided together to form a localized reaction zone where the energy from the shockwaves causes endothermic reactions wherein the chemical bonds of the reactant gases are broken. Between and among reactants molecular surface interaction and molecular surface chemistry take place. In the ensuing exothermic reactions a desired new chemical product is formed and this product is locked into a lower state of enthalpy (state of energy of formation) through adiabatic cooling by means of a free jet expansion.
    Type: Application
    Filed: October 11, 2013
    Publication date: May 1, 2014
    Applicant: PHYSICAL SHOCKWAVE INDUSTRIAL APPLICATIONS, LLC
    Inventor: Robert E. Tang
  • Patent number: 8703849
    Abstract: Presently disclosed are high purity unsaturated fatty acid esters with an ester moiety characterized by having from five to seven members in a ring structure, which esters when epoxidized find particular utility as primary plasticizers in flexible polyvinyl halide applications. Also disclosed are processes for making the high purity esters.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: April 22, 2014
    Assignee: Archer Daniels Midland Company
    Inventors: Erik Hagberg, Stephen Howard, George Poppe, Stephen D. Horton
  • Patent number: 8686166
    Abstract: A 2,2-bis(fluoroalkyl)oxirane (A) is prepared by reacting a fluorinated alcohol (1) with a chlorinating, brominating or sulfonylating agent under basic conditions to form an oxirane precursor (2) and subjecting the oxirane precursor to ring closure under basic conditions. R1 and R2 are fluoroalkyl groups, R3 and R4 are hydrogen or monovalent hydrocarbon groups, X is chlorine, bromine or —OSO2R5 group, and R5 is alkyl or aryl.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: April 1, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masayoshi Sagehashi, Takeru Watanabe, Youichi Ohsawa, Koji Hasegawa, Masaki Ohashi
  • Patent number: 8664412
    Abstract: The present invention relates to an epoxidation process for the preparation of alkylene oxide comprising contacting a hydroperoxide with an olefin in the presence of a catalyst, wherein the catalyst is a titanium containing catalyst obtainable by a method comprising the steps of (a) making a support by a method comprising reacting a silicate with water in the presence of a surfactant selected from block copolymers based on ethylene oxide (EO) and propylene oxide (PO), and calcining the obtained reaction product; and (b) impregnating the support of step (a) with a titanium containing agent.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 4, 2014
    Assignee: Shell Oil Company
    Inventor: Jan-Karel Frederik Buijink
  • Publication number: 20130310581
    Abstract: Process for the manufacture of 1,2-epoxy-3-chloropropane by reaction between allyl chloride and hydrogen peroxide in the presence of a solid catalyst and in the possible presence of at least one solvent in an epoxidation medium comprising at least two liquid phases under the conditions of reaction, comprising feeding continuously a reaction zone comprising the catalyst with at least allyl chloride, hydrogen peroxide and possibly at least one solvent at a total liquid linear velocity higher than or equal to 0.01 m/s and lower than or equal to 1 m/s, wherein the pressure drop across the reaction zone is lower than or equal to 25 kPa/m.
    Type: Application
    Filed: January 25, 2012
    Publication date: November 21, 2013
    Applicant: SOLVAY SA
    Inventors: Patrick Gilbeau, Frederic Gillin
  • Publication number: 20130310582
    Abstract: Embodiments of the present disclosure include a process for removing iron ions from an organic stream by contacting the organic stream with an ion exchange resin prior to contacting the organic stream with a peroxide solution including a stabilizer.
    Type: Application
    Filed: February 3, 2012
    Publication date: November 21, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: Philip J. Carlberg, Hannah L. Crampton, Harlan R. Goltz, Joe J. Longoria
  • Publication number: 20130274389
    Abstract: Improved processes are described for making trialkyl esters and acylated trialkyl esters of carboxylic acids, as well as epoxidized trialkyl esters and acylated trialkyl carboxylate esters, such as are used in developing plasticized PVC compositions. In particular, processes are described for conducting the esterification and acylation steps involved in making the acylated trialkyl esters in a single vessel without an intermediate purification step, by means of a Lewis acid metal triflate catalyst.
    Type: Application
    Filed: July 21, 2011
    Publication date: October 17, 2013
    Applicant: ARCHER DANIELS MIDLAND COMPANY
    Inventor: Stephen Howard
  • Patent number: 8558020
    Abstract: The present invention refers to an aqueous hydrogen peroxide solution having a hydrogen peroxide concentration [H2O2] expressed as % by weight of the solution and an apparent pH of from pHmin to pHmax, such that pHmin=3.45?0.0377×[H2O2], and pHmax=3.76?0.0379×[H2O2]. The present invention also relates to a process for the preparation of said hydrogen peroxide solution and the use of said solution in a process for the epoxidation of olefins.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: October 15, 2013
    Assignee: Solvay (Societe Anonyme)
    Inventors: Armin T. Liebens, Jean-Pierre Ganhy, Jean-Pierre Catinat, Koen Vermeiren
  • Publication number: 20130225843
    Abstract: A process for manufacturing dichloropropanol in which glycerol and/or monochloropropanediol are reacted with hydrogen chloride, in a liquid reaction medium, which is in contact with a gaseous phase, in at least two reactors arranged in a loop, and under a partial pressure of hydrogen chloride in the first reactor which is greater than the partial pressure of hydrogen chloride in the second reactor. This process is suitable for recovering dichloropropanol free from hydrogen chloride and the recovered dichloropropanol may be used in subsequent reactions while avoiding overconsumption of basic agent and loss of recoverable hydrogen chloride, and corrosion during transfer and storage of dichloropropanol will be limited.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 29, 2013
    Applicant: SOLVAY SA
    Inventor: SOLVAY SA
  • Publication number: 20130190474
    Abstract: A method for the manufacture of a material selected from epoxy resins, glycidyl esters, glycidyl ethers, glycidyl amides, glycidyl imides, epichlorohydrin elastomers, coagulants, wet-strength resins, cationization agents, flame retardants and detergent ingredients by subjecting a product containing epichlorohydrin and trichloropropane to a reaction in order to obtain the material, wherein the product contains a positive amount of trichloropropane in an amount of up to less than 0.01 g of trichloropropane per kg of product.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 25, 2013
    Applicant: SOLVAY SA
    Inventor: SOLVAY SA
  • Patent number: 8430948
    Abstract: The present invention relates to a condensation and washing device with which in particular the process vapors which occur during the production of polylactide can be processed and cleaned. Furthermore, the present invention relates to a polymerization device for the production of polylactide and also to a method for processing process vapors which occur during the production of polylactide; possibilities for use of both the condensation and washing devices and of the method are likewise mentioned.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: April 30, 2013
    Assignee: Uhde Inventa-Fischer GmbH
    Inventors: Rainer Hagen, Udo Muhlbauer
  • Publication number: 20130102801
    Abstract: Provided are a method of preparing a chlorohydrin composition and a method of preparing epichlorohydrin by using a chlorohydrin composition prepared by using the method. The method of preparing chlorohydrins in which polyhydroxy aliphatic hydrocarbon is reacted with a chlorination agent in the presence of a catalyst includes performing at least one combination of a series of unit operations comprising a first reaction step, a water removal step, and a second reaction step in this stated order, wherein the method further includes mixing a chlorohydrin concentrate obtained by purifying the reaction mixture discharged from the final reaction step from among the reaction steps and a water-rich layer discharged from the water-removal step and diluting the mixture with water. The method of preparing epichlorohydrin includes contacting the chlorohydrin composition prepared by using the method of preparing a chlorohydrin composition with an alkaline agent.
    Type: Application
    Filed: June 8, 2011
    Publication date: April 25, 2013
    Inventors: Won Seob Song, Sung Yul Woo, Boo Weon Song, Seong Han Park, Myoung Suk Kwon
  • Publication number: 20130096327
    Abstract: A method of preparing chlorohydrins and a method of preparing epichlorohydrin by using chlorohydrins prepared using the method are provided. The method of preparing chlorohydrins by reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst includes at least one combination of a series of unit operations including a first reaction step, a water removal step, and a second reaction step, in that respective order, wherein the method further includes purifying chlorohydrins from a reaction mixture discharged from a final reaction step of the plurality of reaction steps. The method of preparing epichlorohydrin includes reacting chlorohydrins prepared using the method of preparing chlorohydrins, with an alkaline agent.
    Type: Application
    Filed: June 8, 2011
    Publication date: April 18, 2013
    Inventors: Won Seob Song, Sung Yul Woo, Boo Weon Song, Seong Han Park, Myoung Suk Kwon
  • Publication number: 20130091760
    Abstract: A method of production of value-added, biobased chemicals, derivative products, and/or purified glycerin from animal-based bioglycerin is described herein. A method of purification of animal-based bioglycerin is also described herein. The method of purification of animal-based bioglycerin described provides methods for desalinating, decolorizing, and/or concentrating animal-based bioglycerin for the production of biobased chemicals, derivative products, and/or purified glycerin.
    Type: Application
    Filed: January 12, 2012
    Publication date: April 18, 2013
    Applicant: Thesis Chemistry, LLC
    Inventors: John R. Peterson, Christopher M. Yost
  • Publication number: 20130091759
    Abstract: A method of production of value-added, biobased chemicals, derivative products, and/or purified glycerin from plant-based bioglycerin is described herein. A method of purification of plant-based bioglycerin is also described herein. The method of purification of plant-based bioglycerin described provides methods for desalinating, decolorizing, and/or concentrating plant-based bioglycerin for the production of biobased chemicals, derivative products, and/or purified glycerin.
    Type: Application
    Filed: January 12, 2012
    Publication date: April 18, 2013
    Applicant: THESIS CHEMISTRY, LLC
    Inventors: John R. Peterson, Christopher M. Yost
  • Publication number: 20130096326
    Abstract: A method of purification and production of value-added, biobased chemicals and derivative products from crude bioglycerin is described herein. The present method provides methods for desalinating, decolorizing, and concentrating bioglycerin for the production of biobased chemicals or purified bioglycerin.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Applicant: THESIS CHEMISTRY, LLC
    Inventors: John R. Peterson, Christopher M. Yost
  • Publication number: 20130085286
    Abstract: A process for preparing amines of the formula (II) R1—NH—CH2—CH2—NH2??(II) in which R1 is hydrogen or radicals of the formula x is integers from zero to two, by reacting nitriles of the formula (I) R2—NH—CH2—CN??(I) in which R2 is hydrogen or radicals of the formula and R3 is the NC— or H2N—CH2- radicals and x is integers from zero to two, with hydrogen in the presence of a catalyst in suspension mode or in a fixed bed, wherein the space velocity on the catalyst, based on the catalyst surface area, is 10?6 to 10?4 kg of nitrile of the formula (I) per m2 of catalyst surface area and hour, the catalyst surface area being determined by the BET method.
    Type: Application
    Filed: August 31, 2012
    Publication date: April 4, 2013
    Applicant: BASF SE
    Inventors: Hermann Luyken, Sebastian Ahrens, Gordon Brasche, Jens Baldamus, Robert Baumann, Randolf Hugo, Stephanie Jaegli, Johann-Peter Melder, Jõrg Pastre, Boris Buschhaus
  • Patent number: 8399692
    Abstract: Product containing epichlorohydrin, wherein the amount of trichloropropane is of less than 0.01 g of trichloropropane per kg of product, a process for manufacturing the product and its use in various applications.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: March 19, 2013
    Assignee: Solvay (Societe Anonyme)
    Inventors: Philippe Krafft, Patrick Gilbeau, Dominique Balthasart, Noel Boulos
  • Patent number: 8378130
    Abstract: Product containing epichlorohydrin and at least one alkyl glycidyl ether in an amount of less than 0.1 g/kg of product. Use of the product containing epichlorohydrin in the manufacture of epoxy resins, of glycidyl ethers, of glycidyl esters, of glycidyl amides, of glycidyl imides, of products that will be used in food and drink applications, of cationization agents, and of flame retardants, of products which will be used as detergent ingredient and of epichlorohydrin oligomers.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: February 19, 2013
    Assignee: SOLVAY (Societe Anonyme)
    Inventors: Noel Boulos, Philippe Krafft, Patrick Gilbeau, Dominique Balthasart
  • Publication number: 20130005997
    Abstract: A 2,2-bis(fluoroalkyl)oxirane (A) is prepared by reacting a fluorinated alcohol (1) with a chlorinating, brominating or sulfonylating agent under basic conditions to form an oxirane precursor (2) and subjecting the oxirane precursor to ring closure under basic conditions. R1 and R2 are fluoroalkyl groups, R3 and R4 are hydrogen or monovalent hydrocarbon groups, X is chlorine, bromine or —OSO2R5 group, and R5 is alkyl or aryl.
    Type: Application
    Filed: June 19, 2012
    Publication date: January 3, 2013
    Inventors: Masayoshi SAGEHASHI, Takeru WATANABE, Youichi OHSAWA, Koji HASEGAWA, Masaki OHASHI
  • Patent number: 8334415
    Abstract: A process and apparatus for recovering dichlorohydrins from a mixture comprising dichlorohydrins, water, one or more compounds selected from esters of dichlorohydrins, monochlorohydrins and/or esters thereof, and multihydroxylated-aliphatic hydrocarbon compounds and/or esters thereof, and optionally one or more substances comprising chlorinating agents, catalysts and/or esters of catalysts while minimizing formation of heavies is disclosed.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: December 18, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Anil J. Mehta, Danil Tirtowidjojo, Jose Javier Longoria
  • Patent number: 8334394
    Abstract: A solid phase reaction system for oxidation of an organic compound, having high industrial value in which an organic solvent exerting a reverse influence on earth environments is not necessary, reuse of a catalyst is possible, and high yield can be attained, comprising a mixture of a powdery dispersion medium and a powder of a solid catalyst for the above-described oxidation reaction, and the above-described organic compound and aqueous hydrogen peroxide, wherein the above-described organic compound, the above-described solid catalyst and the above-described aqueous hydrogen peroxide are dispersed in the above-described mixture so that they get into contact mutually.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: December 18, 2012
    Assignee: Osaka University
    Inventors: Jyunko Ichihara, Syunrou Yamaguchi