Patents by Inventor Michel Hanse

Michel Hanse 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).

  • Method for obtaining sodium carbonate monohydrate crystals
    Patent number: 8202659
    Abstract: A method for producing sodium carbonate monohydrate, 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 a sodium carbonate monohydrate (16), and the slurry or its mother liquor is evaporated (3) to collect sodium carbonate monohydrate (18).
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: June 19, 2012
    Assignee: Solvay (Societe Anonyme)
    Inventors: Francis Coustry, Michel Hanse
  • METHOD FOR OBTAINING SODIUM CARBONATE CRYSTALS
    Publication number: 20100147698
    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 a sodium carbonate (16), and the slurry or its mother liquor is evaporated (3) to collect sodium carbonate (18).
    Type: Application
    Filed: February 25, 2010
    Publication date: June 17, 2010
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Francis COUSTRY, Michel Hanse
  • Method for obtaining sodium carbonate crystals
    Patent number: 7708972
    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 a sodium carbonate (16), and the slurry or its mother liquor is evaporated (3) to collect sodium carbonate (18).
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: May 4, 2010
    Assignee: Solvay (SociétéAnonyme)
    Inventors: Francis Coustry, Michel Hanse
  • Process for jointly obtaining a chlorine derivative and crystals of sodium carbonate
    Patent number: 7704370
    Abstract: An aqueous solution of sodium chloride is electrolyzed in a cell (1) with an ion permselective membrane to produce, on the one hand, chlorine (16) which is converted in a chlorine production unit (6) and, on the other, an aqueous sodium hydroxide solution (19), which is carbonated using a flue gas (13) from an electricity and steam cogeneration unit (5), and the resulting carbonated solution (18) is evaporated to produce sodium carbonate crystals (21).
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: April 27, 2010
    Assignee: Solvay (Societe Anonyme)
    Inventors: Francis Coustry, Michel Hanse
  • Method for obtaining sodium carbonate crystals
    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
  • Process for Jointly Obtaining a Chlorine Derivative and Crystals of Sodium Carbonate
    Publication number: 20090041651
    Abstract: An aqueous solution of sodium chloride is electrolysed in a cell (1) with an ion permselective membrane to produce, on the one hand, chlorine (16) which is converted in a chlorine production unit (6) and, on the other, an aqueous sodium hydroxide solution (19), which is carbonated using a flue gas (13) from an electricity and steam cogeneration unit (5), and the resulting carbonated solution (18) is evaporated to produce sodium carbonate crystals (21).
    Type: Application
    Filed: March 7, 2006
    Publication date: February 12, 2009
    Applicant: Solvay (Societe Anonyme)
    Inventors: Francis Coustry, Michel Hanse
  • Method for Obtaining Sodium Carbonate Crystals
    Publication number: 20080193365
    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 a sodium carbonate (16), and the slurry or its mother liquor is evaporated (3) to collect sodium carbonate (18).
    Type: Application
    Filed: March 7, 2006
    Publication date: August 14, 2008
    Applicant: SOLVAY (SOCIETE ANONYME)
    Inventors: Francis Coustry, Michel Hanse