Patents Assigned to Solvay SA
  • Patent number: 11111201
    Abstract: The present invention concerns a process for the reduction of content of carboxylic acids and derivatives thereof in oleum, disulfuric acid or concentrated sulfuric acid. The invention further concerns a process for the manufacture of carboxylic acid anhydrides comprising the process for the reduction of content of carboxylic acids and derivatives thereof from oleum, disulfuric acid or concentrated sulfuric acid.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: September 7, 2021
    Assignee: Solvay SA
    Inventors: Jean-Marie Blaude, Benoit Gosselin, Alain Lambert, Matthias Marek, Harald Krueger, Jan Schostag, Miriam Heyd
  • Patent number: 11114667
    Abstract: The present invention pertains to an electrode-forming composition, to use of said electrode-forming composition in a process for the manufacture of an electrode, to said electrode and to an electrochemical device comprising said electrode. The electrode-forming composition comprises at least one partially fluorinated fluoropolymer comprising recurring units derived from at least one fluorinated monomer and at least one functional hydrogenated monomer comprising at least one carboxylic acid end group, at least one electro-active compound, at least one liquid medium comprising at least one organic carbonate or at least one ionic liquid, and at least one metal salt.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: September 7, 2021
    Assignees: Solvay SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Olivier Pras, Hélène Rouault, Aurélie Guyomard-Lack, Jean Le Bideau, Dominique Guyomard, Bernard Lestriez, Christine Hamon, Marc-David Braida, Julio A. Abusleme
  • Patent number: 11088419
    Abstract: The present invention pertains to a membrane for an electrochemical device, to a process for manufacturing said membrane and to use of said membrane in a process for manufacturing an electrochemical device.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: August 10, 2021
    Assignees: Commissariat à L'énergie Atomique et aux énergies Alternatives, Solvay SA
    Inventors: Julio A. Abusleme, Marc-David Braida, Christine Hamon, Hélène Rouault, Djamel Mourzagh, Gaëlle Besnard, Daniel Tomasi
  • Patent number: 11081692
    Abstract: The present invention pertains to an electrode-forming composition, to use of said electrode-forming composition in a process for the manufacture of a composite electrode, to said composite electrode and to a secondary battery comprising said composite electrode.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: August 3, 2021
    Assignees: Solvay SA, Commissariat à 'Énergie Atomique et aux Énergies Alternatives
    Inventors: Olivier Pras, Helene Rouault, Julio A. Abusleme
  • Patent number: 11050086
    Abstract: A lithium-ion battery may include a housing, an anode and a cathode that are disposed in the housing and are in ionically conductive contact with one another, an electrolyte composition that is disposed in the housing and providing an ionically conductive pathway between the anode and the cathode, and a porous separator between the anode and the cathode. The cathode may include a cathode active material which is charged to a potential greater than or equal to 4.35 V versus a Li/Li+ reference electrode. The electrolyte composition may include a) a non-fluorinated carbonate, b) a fluorinated acyclic carboxylic acid ester, c) one or more lithium glycolatoborate compounds, d) a fluorinated carbonate, and e) an electrolyte salt.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 29, 2021
    Assignee: SOLVAY SA
    Inventors: Charles J. Dubois, George K. Kodokian
  • Patent number: 11038196
    Abstract: Disclosed herein are electrolyte compositions comprising at least one electrolyte component comprising a cyclic carbonate, such as a fluoroethylene carbonate, and at least one additive comprising a 6-member ring heterocyclic sulfate, such as a 1,3 propylene sulfate. The disclosed electrolyte compositions can comprise additional electrolyte components, such as fluorinated acyclic carboxylic acid esters, and additional additives, such as lithium boron compounds, and cyclic carboxylic acid anhydrides, such as maleic anhydride. The improved battery performances, which include high temperature cycling conditions and/or room temperature stability, make these electrolyte compositions useful in electrochemical cells, such as lithium ion batteries.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: June 15, 2021
    Assignee: Solvay SA
    Inventors: Stephen E. Burkhardt, Kostantinos Kourtakis, Brian Levy-Polis
  • Patent number: 10982110
    Abstract: The present invention relates to a process for preparing a vinylidene chloride polymer composite comprising a vinylidene chloride polymer and clay materials. The process comprises polymerising vinylidene chloride and clay materials and the resulting vinylidene chloride polymer particle is surrounded by a plurality of clay platelets. The clay materials according to the present invention function as a solid stabilizer in the process for preparing a vinylidene chloride polymer composite of the present invention. The present invention further relates to the vinylidene chloride polymer composite obtainable from the process, to use of the vinylidene chloride polymer composite for the preparation of films, and to films prepared therefrom.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: April 20, 2021
    Assignees: Solvay SA, Centre National de la Recherche Scientifique, Université Claude Bernard Lyon 1, Ecole Supérieure de Chimie Physique Electronique de Lyon, Ezus Lyon
    Inventors: Pierre-Emmanuel Dufils, Isabelle Chaduc, Laura Delafresnaye, Elodie Bourgeat-Lami, Muriel Lansalot, Jérôme Vinas, Yves Vanderveken
  • Patent number: 10982062
    Abstract: The present invention pertains to a fluoropolymer hybrid organic/inorganic composite, to a film comprising said fluoropolymer hybrid organic/inorganic composite and to uses of said film in various applications, in particular in electrochemical and in photo-electrochemical applications.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: April 20, 2021
    Assignee: Solvay SA
    Inventors: Julio A. Abusleme, Matteo Lavaselli, Christine Hamon, Alberto Frache, Giambattista Besana, Giovanni Camino, Ségolène Brusseau
  • Patent number: 10927063
    Abstract: The present invention relates to a process for the preparation of halogenated carboxylic anhydrides, e.g. for the preparation of trifluoroacetic anhydride. The preparation is achieved by reacting a halogenated carboxylic acid, e.g. trifluoroacetic acid, with sulfuric acid, oleum and/or disulfuric acid.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: February 23, 2021
    Assignee: SOLVAY SA
    Inventors: Heinz Rudi Feist, Werner Rudolph
  • Patent number: 10916805
    Abstract: Electrolyte compositions comprising fluorinated acyclic carboxylic acid esters, fluorinated acyclic carbonates, and/or fluorinated acyclic ethers; co-solvents; and certain film-forming chemical compounds are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide the improved performance of a combination of high capacity and high cycle life.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: February 9, 2021
    Assignee: Solvay SA
    Inventors: Xudong Chen, Charles J. Dubois, William L. Holstein, Kostantinos Kourtakis, Mark Gerrit Roelofs
  • Patent number: 10829456
    Abstract: The present invention concerns new halogen substituted diketone compounds, new pyrazole compounds, processes for the manufacture of pyrazole compounds and processes for the manufacture of agrochemical or pharmaceutical compounds.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: November 10, 2020
    Assignee: SOLVAY SA
    Inventors: Suzanne Wassmann, Janis Jaunzems, Stefan Mross, Jean Fabre
  • Patent number: 10827763
    Abstract: A method for the prophylactic treatment of the development of parasites in a food product storage silo, the food product storage generating the deposit of food product scraps and/or dust on the walls of the silo, said prophylactic treatment method comprising the application, to at least one part of the walls, of a layer comprising at least 10 g of mineral per m2 of wall, the mineral being chosen from: an alkali metal bicarbonate, an alkaline-earth metal carbonate, an alkali metal sulphate, an alkaline-earth metal sulphate, an alkaline-earth metal oxide, and mixtures thereof; the mineral being in the form of particles having an average diameter of at most 200 ?m; and said method being characterized in that the application of the layer is carried out after emptying of the silo, on food product scraps and/or dust deposited on the walls of the silo.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 10, 2020
    Assignee: SOLVAY SA
    Inventors: Olivier Patat, Jean-Philippe Pascal
  • Patent number: 10814303
    Abstract: A process for producing a calcium phosphate reactant, according to which: in a first step, use is made of a source of calcium and a source of phosphate ions in water, in a molar ratio that is adjusted so as to obtain a Ca/P molar ratio of between 0.5 and 1.6, and the source of calcium is reacted with the phosphate ions at a pH of between 2 and 8, in order to obtain a suspension (A) of calcium phosphate, and in a second step, added to the suspension (A) are an alkaline compound comprising hydroxide ions in order to set a pH of more than 8 and an additional source of calcium in order to obtain a suspension (B) of calcium phosphate reactant having a Ca/P molar ratio of more than 1.6. A calcium phosphate reactant obtainable by such a process.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: October 27, 2020
    Assignee: SOLVAY SA
    Inventors: Patrick Perrin, Olivier Jacques F. J. G. Bodson, Thierry Delplanche, Dirk Breugelmans
  • Patent number: 10807876
    Abstract: Process for the joint production of sodium carbonate and sodium bicarbonate crystals, according to which: a solid powder derived from sodium sesquicarbonate, having a mean particle diameter comprised between 0.1 and 10 mm is dissolved in water; the resulting water solution is introduced into a crystallizer, wherein a first water suspension comprising sodium carbonate crystals is produced; the first water suspension is subjected to a separation, in order to produce crystals comprising sodium carbonate on the one hand, which are valorized, and a mother liquor on the other hand; and a part of the mother liquor is taken out of the crystallizer and put into contact in, a gas liquid contactor, with a gas comprising carbon dioxide, in order to produce a second water suspension comprising sodium bicarbonate crystals, which are separated and valorized. A reagent powder comprising sodium bicarbonate crystals made by such process.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: October 20, 2020
    Assignee: Solvay SA
    Inventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
  • Patent number: 10793433
    Abstract: A process for manufacturing hydrogen peroxide by an anthraquinone autoxidation process (AO-process) comprising two alternate (essential) steps of: (a) hydrogenation of a working solution in a hydrogenation unit in the presence of a catalyst, wherein such working solution contains at least one alkylanthraquinone dissolved in at least one organic solvent, to obtain at least one corresponding alkylanthrahydroquinone compound; and (b) oxidation of the at least one alkylanthrahydroquinone compound to obtain hydrogen peroxide in an oxidation unit; and further comprising the step of: (c) extracting the hydrogen peroxide formed in the oxidation step in an extraction unit, wherein the units of step (a) to (c), optionally together with further ancillary units as appropriate, constitute a hydrogen peroxide production site, wherein one or more of said units are equipped with one or more sensors for monitoring one or more AO-process parameters at the hydrogen peroxide production site, said sensors being interconnected wit
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: October 6, 2020
    Assignee: Solvay SA
    Inventors: Alain Vandenbussche, Patrick Markus Dhaese, Stephen Bloomfield, Francine Janssens
  • Patent number: 10766782
    Abstract: A process for producing crystalline sodium bicarbonate, comprising: providing an aqueous sodium-bicarbonate containing liquor originating from a reactive crystallization step in which first sodium bicarbonate crystals are produced and recovered; feeding at least a portion of said aqueous sodium-bicarbonate containing liquor to a cooling crystallization unit to form second sodium bicarbonate crystals and produce a crystals slurry comprising the second sodium bicarbonate crystals; and withdrawing a portion of the crystals slurry from the cooling crystallization unit for the withdrawn second sodium bicarbonate crystals to be further processed. A portion of the second sodium bicarbonate crystals withdrawn from the cooling crystallization unit may be fed to a sodium bicarbonate reactive crystallization unit, to a caustic unit, or may be separated and dried.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: September 8, 2020
    Assignee: Solvay SA
    Inventors: James C. Kisielewski, David M. Hansen, Keith O. Hayes, Mayra Muci-Castaneda, Alain Vandendoren
  • Patent number: 10763007
    Abstract: Methods for dielectrically insulating electrical active parts The invention concerns methods for dielectrically insulating electrical active parts using certain fluorinated cyano-substituted ethers as well as compositions and apparatus comprising such compounds.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: September 1, 2020
    Assignee: SOLVAY SA
    Inventors: Jean Fabre, Ferdinand Hardinghaus, Holger Pernice
  • Patent number: 10756389
    Abstract: The present invention concerns methods for the manufacture of ethylene carbonate substituted with a fluorinated alkoxy group, certain ethylene carbonates substituted with a fluorinated alkoxy group as well as their use as solvent or solvent additive for lithium ion batteries and supercapacitors.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: August 25, 2020
    Assignee: SOLVAY SA
    Inventors: Ji-hun Lee, Ji-Ae Choi, Hyung Kwon Hwang, Martin Bomkamp, Sergey N. Tverdomed, Mykhailo Shevchuk, Nataliya Kalinovich, Gerd-Volker Röschenthaler
  • Patent number: 10744448
    Abstract: Gas separation unit for separation of a gas component from a process gas stream, said separation unit comprising a stator and a rotor comprising a plurality of sectors, each sector containing a separation device arranged to separate the gas component from the process gas stream which is led into the separation device and each sector being fluidically connected with at least one valve. The valve is a rotary active valve which comprises a rotor open area which is located at the rotor and a stator open area which is located at the stator. The rotor open area and the stator open area can overlap and can be laterally separated from each other by rotation of the rotor relative to the stator. In this way, the valve can at least partially be opened and closed. The extent of overlap of the rotor open area and the stator open area defines the extent of opening and closing of the valve, respectively. The extent of overlap corresponds to the extent of partial opening of the valve.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: August 18, 2020
    Assignee: SOLVAY SA
    Inventors: Eric Pierre Dubois, David Jean Lucien Savary, Jean-Paul Coquerel
  • Patent number: 10686220
    Abstract: Electrolyte compositions comprising fluorinated acyclic carboxylic acid esters, fluorinated acyclic carbonates, and/or fluorinated acyclic ethers; co-solvents; and certain film-forming chemical compounds are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide the improved performance of a combination of high capacity and high cycle life.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: June 16, 2020
    Assignee: Solvay SA
    Inventors: Stephen E. Burkhardt, Xudong Chen, Charles J. Dubois, William L. Holstein, Kostantinos Kourtakis, Mark Gerrit Roelofs