Patents by Inventor Rolf Edvinsson-Albers

Rolf Edvinsson-Albers 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: 8764963
    Abstract: A process for producing alkali metal chlorate that includes introducing an electrolyte solution containing alkali metal halide and alkali metal chlorate to an electrolytic cell, electrolyzing the electrolyte solution to produce an electrolyzed chlorate solution, transferring the electrolyzed chlorate solution to a chlorate reactor to produce a more concentrated alkali metal chlorate, wherein the electrolytic cell is a non-divided electrolytic cell that includes: at least one anode or at least one cathode that includes an electrode substrate comprising M(n+1)AXn, where M is a metal of group IIIB, IVB, VB, VIB or VIII of the periodic table of elements or a combination thereof, A is an element of group IIIA, IVA, VA or VIA of the periodic table of elements or a combination thereof, X is carbon, nitrogen or a combination thereof, where n is 1, 2, or 3; and an outlet for transferring electrolyzed solution to the chlorate reactor.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: July 1, 2014
    Assignee: Akzo Nobel N.V.
    Inventors: Magnus Rosvall, Rolf Edvinsson-Albers, Kristoffer Hedenstedt
  • Publication number: 20130292261
    Abstract: The invention relates to a process of producing alkali metal chlorate in an electrolytic cell comprising an anode and a cathode, wherein at least one chromium compound having a valence lower than +6 is added to the process, wherein said at least one chromium compound is oxidized to hexavalent chromium within said process, wherein substantially no hexavalent chromium is added to the process from an external source. The invention also relates to the use of an aqueous solution of chromium compounds as an additive to a chlorate process.
    Type: Application
    Filed: December 19, 2011
    Publication date: November 7, 2013
    Applicant: Akzo Nobel Chemicals International B.V.
    Inventors: Kristoffer Hedenstedt, Rolf Edvinsson Albers
  • Patent number: 8034227
    Abstract: The invention relates to a process for the production of alkali metal chlorate comprising: providing an electrochemical cell comprising an anode and a cathode in separate anode and cathode compartments; contacting the cathode with an electrolyte comprising at least one organic mediator and one or more organic or mineral acids; reacting the organic mediator at the cathode to form at least one reduced form of the mediator; reacting the at least one reduced form of the mediator with oxygen to form hydrogen peroxide; contacting the anode with an anolyte comprising alkali metal chloride; reacting chloride at the anode to form chlorine that is hydrolyzed; and, reacting the hydrolyzed chlorine to form chlorate.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: October 11, 2011
    Assignee: Akzo Nobel N.V.
    Inventors: Magnus Rosvall, Rolf Edvinsson Albers
  • Publication number: 20100236937
    Abstract: An electrode substrate comprising M(n+1)AXn, where M is a metal of group IIIB, IVB, VB, VIB or VIII of the periodic table of elements or a combination thereof, A is an element of group IIIA, IVA, VA or VIA of the periodic table of elements or a combination thereof, X is carbon, nitrogen or a combination thereof, where n is 1, 2, or 3; and b) an electrocatalytic coating deposited on said electrode substrate, said coating being selected from at least one of b.1) a metal oxide and/or metal sulfide comprising ByC(1?y)Oz1Sz2, wherein B is at least one of ruthenium, platinum, rhodium, palladium, iridium, and cobalt, C is at least one valve metal, y is 0.4-0.9, 0<=z1, z2<=2 and z1+z2=2; b.2) a metal oxide comprising BfCgDhEi, wherein B is at least one of ruthenium, platinum, rhodium, palladium, and cobalt, C is at least one valve metal, D is iridium, E is Mo and/or W, wherein f is 0-0.25 or 0.35-1, g is 0-1, h is 0-1, i is 0-1, wherein f+g+h+i=1; b.3) at least one noble metal; b.
    Type: Application
    Filed: November 14, 2008
    Publication date: September 23, 2010
    Applicant: Akzo Nobel N.V.
    Inventors: Magnus Rosvall, Rolf Edvinsson-Albers, Kristoffer Hedenstedt
  • Patent number: 7645438
    Abstract: The invention relates to a process for the production of hydrogen peroxide comprising a liquid-liquid extraction step, said extraction step comprising contacting an organic feed solution containing hydrogen peroxide with an extraction solvent comprising less than about 30 wt % of water to achieve extraction of hydrogen peroxide to said extraction solvent and obtaining an extract containing hydrogen peroxide.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: January 12, 2010
    Assignee: Akzo Nobel N.V.
    Inventors: Rolf Edvinsson-Albers, Boris Kuzmanovic, Cornald Van Strien
  • Publication number: 20080044343
    Abstract: The invention relates to a process for the production of hydrogen peroxide comprising a liquid-liquid extraction step, said extraction step comprising contacting an organic feed solution containing hydrogen peroxide with an extraction solvent comprising less than about 30 wt % of water to achieve extraction of hydrogen peroxide to said extraction solvent and obtaining an extract containing hydrogen peroxide.
    Type: Application
    Filed: June 11, 2007
    Publication date: February 21, 2008
    Applicant: Akzo Nobel N.V.
    Inventors: Rolf Edvinsson-Albers, Boris Kuzmanovic, Cornald Van Strien
  • Publication number: 20070012578
    Abstract: The invention relates to a process for the production of hydrogen peroxide comprising: providing an electrochemical cell comprising an anode and a cathode; contacting the cathode with an electrolyte comprising at least one organic mediator dissolved in an at least partially organic continuous liquid phase comprising an at least partially organic salt and a neutral co-solvent, said salt comprising at least one kind of organic cation and/or organic anion, said continuous liquid phase having an electrical conductivity under process conditions of at least about 0.1 S/m; reacting the organic mediator at the cathode to form at least one reduced form of the mediator; and, reacting the at least one reduced form of the mediator with oxygen to form hydrogen peroxide.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 18, 2007
    Applicant: Akzo Nobel N.V.
    Inventors: Rolf Edvinsson Albers, Magnus Rosvall
  • Publication number: 20070012579
    Abstract: The invention relates to a process for the production of alkali metal chlorate comprising: providing an electrochemical cell comprising an anode and a cathode in separate anode and cathode compartments; contacting the cathode with an electrolyte comprising at least one organic mediator and one or more organic or mineral acids; reacting the organic mediator at the cathode to form at least one reduced form of the mediator; reacting the at least one reduced form of the mediator with oxygen to form hydrogen peroxide; contacting the anode with an anolyte comprising alkali metal chloride; reacting chloride at the anode to form chlorine that is hydrolysed; and, reacting the hydrolysed chlorine to form chlorate.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 18, 2007
    Applicant: Akzo Nobel N.V.
    Inventors: Magnus Rosvall, Rolf Edvinsson Albers