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).
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Patent number: 10807876Abstract: 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: GrantFiled: April 3, 2018Date of Patent: October 20, 2020Assignee: Solvay SAInventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
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Patent number: 10065866Abstract: 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: GrantFiled: May 12, 2009Date of Patent: September 4, 2018Assignee: Solvay SAInventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
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Publication number: 20180222759Abstract: 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: ApplicationFiled: April 3, 2018Publication date: August 9, 2018Inventors: Perrine DAVOINE, Francis M. COUSTRY, Jean-Paul DETOURNAY, Kurt ALLEN
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Patent number: 9422166Abstract: 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: GrantFiled: January 6, 2009Date of Patent: August 23, 2016Assignee: Solvay (Societe Anonyme)Inventors: Jean-Paul Detournay, Francis M. Coustry
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Patent number: 9139447Abstract: 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: GrantFiled: July 9, 2007Date of Patent: September 22, 2015Assignee: SOLVAY (SOCIETE ANONYME)Inventors: Jean-Paul Detournay, Francis M. Coustry, Alessandra Pastacaldi
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Publication number: 20150098876Abstract: 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: ApplicationFiled: December 12, 2014Publication date: April 9, 2015Inventors: Perrine DAVOINE, Francis M. COUSTRY, Jean-Paul DETOURNAY, Kurt ALLEN
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Patent number: 8784756Abstract: 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: GrantFiled: December 22, 2009Date of Patent: July 22, 2014Assignee: Solvay SAInventors: Jean-Paul Detournay, Francis M. Coustry, Perrine Davoine
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Publication number: 20130011312Abstract: 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: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Perrine DAVOINE, Francis M. COUSTRY, Jean-Paul DETOURNAY, Kurt ALLEN
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Publication number: 20110250109Abstract: 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: ApplicationFiled: December 22, 2009Publication date: October 13, 2011Applicant: SOLVAY SAInventors: Jean-Paul Detournay, Francis M. Coustry, Perrine Davoine
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Publication number: 20110064637Abstract: 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: ApplicationFiled: May 12, 2009Publication date: March 17, 2011Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
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Publication number: 20100284891Abstract: 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: ApplicationFiled: January 6, 2009Publication date: November 11, 2010Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Jean-Paul Detournay, Francis M. Coustry
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Publication number: 20100282614Abstract: 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 remaType: ApplicationFiled: January 6, 2009Publication date: November 11, 2010Applicant: SOLVAY SAInventors: Jean-Paul Detournay, Francis M. Coustry
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Publication number: 20090291038Abstract: 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 valorizedType: ApplicationFiled: May 23, 2008Publication date: November 26, 2009Applicant: SOLVAY (Societe Anonyme)Inventors: Perrine Davoine, Francis M. Coustry, Jean-Paul Detournay, Kurt Allen
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Publication number: 20090288957Abstract: 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: ApplicationFiled: July 9, 2007Publication date: November 26, 2009Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Jean-Paul Detournay, Francis M. Coustry, Alessandra Pastacaldi
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Publication number: 20090260993Abstract: 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: ApplicationFiled: September 12, 2007Publication date: October 22, 2009Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Francis M. Coustry, Michel Hanse
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Patent number: 5624647Abstract: 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: GrantFiled: May 10, 1995Date of Patent: April 29, 1997Assignee: Solvay Minerals, Inc.Inventors: Vladimir M. Zolotoochin, David R. Delling, Robert N. Skogley, Francis M. Coustry
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Patent number: 5618504Abstract: 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: GrantFiled: May 10, 1995Date of Patent: April 8, 1997Assignee: Solvay Minerals, Inc.Inventors: David R. Delling, Vladimir M. Zolotoochin, Francis M. Coustry, Kevin L. Green