Patents by Inventor Francis M. Coustry

Francis M. Coustry has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10065866
    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: May 12, 2009
    Date of Patent: September 4, 2018
    Assignee: Solvay SA
    Inventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
  • Publication number: 20180222759
    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: Application
    Filed: April 3, 2018
    Publication date: August 9, 2018
    Inventors: Perrine DAVOINE, Francis M. COUSTRY, Jean-Paul DETOURNAY, Kurt ALLEN
  • Patent number: 9422166
    Abstract: In a process to produce sodium carbonate, a first production solution comprising sodium carbonate is introduced into less basic compartments of an electrodialyzer comprising alternating less basic and more basic adjacent compartments separated from each other by cationic membranes, the more basic compartments being delimited by anionic faces of bipolar membranes on one side and by the cationic membranes on the other side; a second production solution comprising sodium carbonate is introduced into the more basic compartments of the electrodialyzer; a solution comprising sodium hydroxide is produced into the more basic compartments by combination of sodium ions flux sodium ions crossing the cationic membrane and hydroxyl ions flux crossing the anionic face of the bipolar membranes, and is then extracted from the electrodialyzer to be used as a reaction solution; and the reaction solution is reacted with sodium bicarbonate in order to form a produced solution comprising sodium carbonate.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: August 23, 2016
    Assignee: Solvay (Societe Anonyme)
    Inventors: Jean-Paul Detournay, Francis M. Coustry
  • Patent number: 9139447
    Abstract: Process for the joint production of sodium carbonate and sodium bicarbonate out of sesquicarbonate, in which the sesquicarbonate is dissolved in water, in order to form a feed water solution comprising both sodium carbonate and sodium bicarbonate, in which at least part of the feed water solution is introduced into all the compartments of an electrodialyser and in which a sodium bicarbonate enriched solution and a sodium carbonate enriched solution are extracted from the compartments.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: September 22, 2015
    Assignee: SOLVAY (SOCIETE ANONYME)
    Inventors: Jean-Paul Detournay, Francis M. Coustry, Alessandra Pastacaldi
  • Publication number: 20150098876
    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: Application
    Filed: December 12, 2014
    Publication date: April 9, 2015
    Inventors: Perrine DAVOINE, Francis M. COUSTRY, Jean-Paul DETOURNAY, Kurt ALLEN
  • Patent number: 8784756
    Abstract: A process for the joint production of sodium carbonate and sodium bicarbonate out of trona, comprising: introducing and dissolving crushed trona ore in a leaching tank containing a solution comprising sodium carbonate and sodium bicarbonate, saturated in sodium bicarbonate, in order to produce solid particles suspended in a production solution comprising sodium carbonate, the solid particles containing insoluble impurities and at least 65% in weight of sodium bicarbonate; separating the solid particles from the production solution containing sodium carbonate; drying and valorizing the separated solid particles; taking at least part of the production solution containing sodium carbonate out of the leaching tank in order to constitute a produced solution which is valorized; and introducing water in the leaching tank.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: July 22, 2014
    Assignee: Solvay SA
    Inventors: Jean-Paul Detournay, Francis M. Coustry, Perrine Davoine
  • Publication number: 20130011312
    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: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Perrine DAVOINE, Francis M. COUSTRY, Jean-Paul DETOURNAY, Kurt ALLEN
  • Publication number: 20110250109
    Abstract: Process for the joint production of sodium carbonate and sodium bicarbonate out of trona, comprising introducing and dissolving crushed trona ore is introduced and dissolved in a leaching tank containing a solution comprising sodium carbonate and sodium bicarbonate, saturated in sodium bicarbonate, in order to produce solid particles suspended in a production solution comprising sodium carbonate, the solid particles containing insoluble impurities and at least 65% in weight of sodium bicarbonate; separating the solid particles from the production solution containing sodium carbonate; drying and valorizing the separated solid particles; taking at least part of the production solution containing sodium carbonate out of the leaching tank in order to constitute a produced solution which is valorized; and introducing water in the leaching tank.
    Type: Application
    Filed: December 22, 2009
    Publication date: October 13, 2011
    Applicant: SOLVAY SA
    Inventors: Jean-Paul Detournay, Francis M. Coustry, Perrine Davoine
  • Publication number: 20110064637
    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: Application
    Filed: May 12, 2009
    Publication date: March 17, 2011
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
  • Publication number: 20100282614
    Abstract: In a process to produce sodium carbonate and/or sodium bicarbonate from an ore mineral comprising sodium bicarbonate, a production solution comprising sodium carbonate is introduced into less basic compartments of an electrodialyser comprising alternating less basic and more basic adjacent compartments separated from each other by cationic membranes, the more basic compartments being delimited by anionic faces of bipolar membranes on one side and by the cationic membranes on the other side; a solution comprising sodium hydroxide is produced into the more basic compartments by combination of sodium ions flux crossing the cationic membrane and hydroxyl ions flux crossing the anionic face of the bipolar membranes, and is then extracted from the electrodialyser to be used as a reaction solution; the reaction solution is put into contact with the mineral ore to form a solution comprising sodium carbonate; and the solution comprising sodium carbonate is divided into a part used as the production solution and a rema
    Type: Application
    Filed: January 6, 2009
    Publication date: November 11, 2010
    Applicant: SOLVAY SA
    Inventors: Jean-Paul Detournay, Francis M. Coustry
  • Publication number: 20100284891
    Abstract: In a process to produce sodium carbonate, a first production solution comprising sodium carbonate is introduced into less basic compartments of an electrodialyser comprising alternating less basic and more basic adjacent compartments separated from each other by cationic membranes, the more basic compartments being delimited by anionic faces of bipolar membranes on one side and by the cationic membranes on the other side; a second production solution comprising sodium carbonate is introduced into the more basic compartments of the electrodialyser; a solution comprising sodium hydroxide is produced into the more basic compartments by combination of sodium ions flux sodium ions crossing the cationic membrane and hydroxyl ions flux crossing the anionic face of the bipolar membranes, and is then extracted from the electrodialyser to be used as a reaction solution; and the reaction solution is reacted with sodium bicarbonate in order to form a produced solution comprising sodium carbonate.
    Type: Application
    Filed: January 6, 2009
    Publication date: November 11, 2010
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Jean-Paul Detournay, Francis M. Coustry
  • Publication number: 20090291038
    Abstract: Process for the joint production of sodium carbonate and sodium bicarbonate crystals, according to which: 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; 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
    Type: Application
    Filed: May 23, 2008
    Publication date: November 26, 2009
    Applicant: SOLVAY (Societe Anonyme)
    Inventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
  • Publication number: 20090288957
    Abstract: Process for the joint production of sodium carbonate and sodium bicarbonate out of sesquicarbonate, in which the sesquicarbonate is dissolved in water, in order to form a feed water solution comprising both sodium carbonate and sodium bicarbonate, in which at least part of the feed water solution is introduced into all the compartments of an electrodialyser and in which a sodium bicarbonate enriched solution and a sodium carbonate enriched solution are extracted from the compartments.
    Type: Application
    Filed: July 9, 2007
    Publication date: November 26, 2009
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Jean-Paul Detournay, Francis M. Coustry, Alessandra Pastacaldi
  • Publication number: 20090260993
    Abstract: Method for producing sodium carbonate, according to which an aqueous sodium chloride solution (5) is electrolyzed in a membrane-type cell (1) from which an aqueous sodium hydroxide solution (9) is collected, and carbonated by direct contact with carbon dioxide (15) to form a slurry of crystals of anhydrous sodium carbonate (16).
    Type: Application
    Filed: September 12, 2007
    Publication date: October 22, 2009
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Francis M. Coustry, Michel Hanse
  • Patent number: 5624647
    Abstract: A process for recovering alkali values from trona ore by partially dissolving trona in a first dissolving solution to form a first feed liquor and undissolved trona. The first feed liquor is cooled and sodium carbonate decahydrate is precipitated. The sodium carbonate decahydrate is recovered from the resultant first mother liquor that is returned as the first dissolving solution. The undissolved trona is further dissolved in a second dissolving solution to form a second feed liquor. The second feed liquor is preferably carbonated to convert sodium carbonate into sodium bicarbonate, and cooled to precipitate sodium bicarbonate. The sodium bicarbonate is recovered from the resultant second mother liquor that is returned as the second dissolving solution.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: April 29, 1997
    Assignee: Solvay Minerals, Inc.
    Inventors: Vladimir M. Zolotoochin, David R. Delling, Robert N. Skogley, Francis M. Coustry
  • Patent number: 5618504
    Abstract: A process for recovery of alkali values from trona ore comprising (a) dissolving the trona ore, (b) separating the insoluble material to obtain an alkali containing feed liquor, (c) cooling the feed liquor and crystallizing sodium bicarbonate and separating the bicarbonate crystals from the resulting mother liquor, (d) cooling the mother liquor and crystallizing sodium carbonate decahydrate and separating the decahydrate crystals from a weak liquor, and (e) treating the sodium carbonate decahydrate crystals to recover the alkali values therein.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: April 8, 1997
    Assignee: Solvay Minerals, Inc.
    Inventors: David R. Delling, Vladimir M. Zolotoochin, Francis M. Coustry, Kevin L. Green