Plural -coo- Groups In Compound Formed Patents (Class 562/512.4)
  • Patent number: 10654786
    Abstract: This invention relates to a process for the purification of dicarboxylic acids obtained from the hydrolysis of carboxylic acid triglycerides having more than one acid functional group. The process comprises in particular the separation of at least some of the glycerine from the hydrolysis product in an aqueous phase, evaporating and/or distilling the resultant organic phase and recovering at least some of the evaporated and/or distilled dicarboxylic acids through at least one crystallisation operation.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: May 19, 2020
    Assignee: NOVAMONT S.P.A.
    Inventors: Luigi Capuzzi, Francesca Digioia
  • Publication number: 20130204038
    Abstract: A method for oxidizing hydrocarbons, in particular saturated hydrocarbons, for producing peroxides, alcohols, ketones, aldehydes and/or diacids is described. Also described, is a method for oxidizing a cycloaliphatic saturated hydrocarbon using molecular oxygen for producing ketones/alcohols, and more precisely for oxidizing cyclohexane into cyclohexanol and cyclohexanone using molecular oxygen.
    Type: Application
    Filed: January 14, 2011
    Publication date: August 8, 2013
    Inventors: Sophie Galinat, Francoise Igersheim, Serge Veracini
  • Patent number: 8309762
    Abstract: It is an object of this invention to provide a method for efficiently synthesizing monocarboxylic acid, dicarboxylic acid, and tricarboxylic acid with the use of unsaturated triacyl glycerol as a starting material and hydrogen peroxide as an oxidant. Such method comprises allowing unsaturated triacyl glycerol to react with hydrogen peroxide in the presence of a quaternary ammonium polybasic acid hydrogen salt and at least one member selected from the group consisting of tungstic acid, heterotungstic acid, and salts thereof.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: November 13, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshihiro Kon, Kazuhiko Sato, Hideaki Yazawa, Chikara Ohto, Yukio Okamura
  • Patent number: 8222438
    Abstract: Process for the production of saturated monocarboxylic acids and triglycerides of saturated carboxylic acids having more than one acid functionstarting from non-modified vegetable oils containing triglycerides of unsaturated fattyacids, comprising the oxidative cleavage of the unsaturated fatty acids.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: July 17, 2012
    Assignee: Novamont S.p.A.
    Inventors: Catia Bastioli, Giampietro Borsotti, Alessandra Merlin, Tiziana Milizia
  • Publication number: 20120095258
    Abstract: The present invention relates to a method for preparing dicarboxylic acids from saturated and cycloaliphatic hydrocarbons by oxidation at a reaction temperature comprised in the range of 25 to 300° C. in an autoclave using a solid heterogeneous catalyst. More particularly, the method of the invention relates to a method for preparing adipic acid (AA) from cyclohexane (CH) by selective oxidation.
    Type: Application
    Filed: October 10, 2011
    Publication date: April 19, 2012
    Inventors: Ahmad ALSHAMMARI, Narayana Venkata KALEVARU, Angela KOECKRITZ, Andreas MARTIN
  • Patent number: 8058472
    Abstract: The present invention concerns a new efficient method for the selective transformation, under mild conditions and in aqueous medium, of gaseous (ethane, propane and n-butane) and liquid (n-pentane, n-hexane, cyclopentane and cyclohexane) alkanes into carboxylic acids bearing one more carbon atom, characterized by a single-pot low-temperature (25-60° C.) reaction of the alkane with carbon monoxide in water/acetonitrile liquid medium, either in the absence or in the presence of a metal catalyst, in systems containing also an oxidant (a peroxodisulphate salt).
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: November 15, 2011
    Assignee: Instituto Superior Tecnico
    Inventors: Armando Pombeiro, Marina Kirillova, Alexander Kirillov, Jose Armando Silva, Joao Frausto Da Silva
  • Patent number: 7728170
    Abstract: A method for preparing a polycarboxylic composition, includes a stage in which a monosaccharide composition undergoes an electrochemical oxidation treatment carried out in the absence of sodium hypochlorite and in the presence of a) an amine oxide and b) a carbon-based anode. Preferably, the anode is selected from the group comprising carbon felt and granular active carbon. The electrochemical oxidation treatment can be carried out advantageously at a pH, preferably of between 11.5 and 14. The method makes it possible to obtain novel products, especially 2-carboxy-2, 3, 4-trihydroxypentane-dioicious acid, the salts and derivatives thereof.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: June 1, 2010
    Assignee: Roquette Freres
    Inventors: Francis Marsais, Christian Feasson, Guy Queguiner, Mathias Ibert, Serge Comini, Jean-Marc Grossel
  • Publication number: 20080312450
    Abstract: Methods comprising: providing an oxidation catalyst bed; and starting up the oxidation catalyst at a temperature of 360° C. to 400° C. with an amount of air of 1.0 to 3.5 standard m3/h and a hydrocarbon loading of 20 to 65 g/standard m3, such that a hot spot having a temperature of 390° C. to <450° C. is formed in the first 7-20% of the catalyst bed.
    Type: Application
    Filed: June 30, 2006
    Publication date: December 18, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Samuel Neto, Frank Rosowski, Sebastian Storck, Juergen Zuehlke, Hans-Martin Allmann, Thomas Lautensack, Rainer Steeg
  • Publication number: 20080227984
    Abstract: This invention relates to the selective oxidation of organic compounds. According to the invention organic compounds are selectively oxidized using a peracid or a source of peracid, a transition metal based heterogeneous catalysts and a borate or boric acid in the presence of water. Using the process of the present invention, both excellent conversion and product selectivity maybe obtained.
    Type: Application
    Filed: October 21, 2005
    Publication date: September 18, 2008
    Applicant: U.S. Borax, Inc.
    Inventors: Michael John Greenhill-Hooper, Robert Raja, John Meurig-Thomas
  • Patent number: 6593376
    Abstract: A process for preparing amphiphilic compounds having at least two hydrophilic and at least two hydrophobic groups by reacting an olefinic substrate having at least two double bonds with an organic hydroperoxide to form an oxirane ring, opening, the oxirane ring with an alcohol in the presence of a catalyst system comprising a molybdenum compound as a first catalyst component and a second catalyst component selected from the group consisting of boron trifluoride, alumina, 1,8-diazzabicyclo-(5.4.0)-undec-7-ene, 1,4-diazabicyclo-(2,2,2)-octane.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: July 15, 2003
    Assignee: SASOL Germany GmbH
    Inventors: Mark Rüsch gen. Klaas, Klaus Kwetkat, Siegfried Warwel
  • Patent number: 6515171
    Abstract: An oxidation reaction mixture (e.g. adipic acid, benzoic acid, butenediol) and an oxidation catalyst are efficiently separated from a reaction mixture with the use of an aqueous solvent (e.g. methyl benzoate, benzonitrile) containing at least water (e.g. water) and a non-water-soluble solvent separable from the aqueous solvent, the reaction mixture being obtained by oxidizing a substrate (e.g. a hydrocarbon) in the presence of an imide compound such as N-hydroxyphthalimide shown by the following formula (1) as the oxidation catalyst, wherein R1 and R2 represents a substituent such as a hydrogen atom and a halogen atom; R1 and R2 may together form a double bond, or an aromatic or nonaromatic 5- to 12-membered ring; X stands for O or OH; and n is 1 to 3. No decomposition of the oxidation catalyst is observed in this separation process.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: February 4, 2003
    Assignee: Daicel Chemical Industries, Ltd.
    Inventor: Naruhisa Hirai
  • Patent number: 6426432
    Abstract: A process for making an alkanedioic acid in which a mixture of a cycloalkene, a base and a solvent is contacted simultaneously with both oxygen and ozone at a temperature between 40 and 60 degrees Centigrade.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: July 30, 2002
    Assignee: E. I. DuPont de Nemours & Company
    Inventor: Chester Arthur Thayer, II
  • Publication number: 20020028967
    Abstract: According to the present invention there is provided a process for retarding the discoloration of dicarboxylic acids, said process comprising:
    Type: Application
    Filed: July 10, 2001
    Publication date: March 7, 2002
    Applicant: The Procter & Gamble Company
    Inventor: Paul Irma Albertus Van Dijk
  • Patent number: 6187903
    Abstract: A dimeric fatty acid and/or dimeric fatty ester product having a low residual content of interesters is obtained by hydrolyzing the interesters to provide monomeric unsaturated fatty acids and alcohols as the hydrolysates and thereafter removing the hydrolysates from the dimeric fatty acid and/or dimeric fatty ester product.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: February 13, 2001
    Assignee: Cognis Corporation
    Inventors: A. Fred Elsasser, Laura A. McCargar