Patents by Inventor Paraskevas Tsobanakis

Paraskevas Tsobanakis 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: 10442748
    Abstract: A method for recovering a composition enriched in 3-hydroxypropionic acid from a fermentation broth comprising 3-hydroxypropionic acid and/or salts thereof comprises the steps of: (a) providing the fermentation broth having a pH of from about 2 to about 8 comprising: 3-hydroxypropionic acid and/or salts thereof, (b) acidifying the fermentation broth; (c) reducing the total sulfate ion and phosphate ion (d) distilling the resulting reduced ion aqueous solution and (e) recovering the product.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: October 15, 2019
    Assignee: CARGILL, INCORPORATED
    Inventors: Timothy Walter Abraham, Erik Allen, John J. Hahn, Paraskevas Tsobanakis, Eric Christopher Bohnert, Christopher Lawrence Frank
  • Patent number: 10442749
    Abstract: A method for recovering a composition enriched in 3-hydroxypropionic acid by providing the fermentation broth, acidifying the fermentation broth; reducing the total sulfate ion and phosphate ion concentration of the resulting aqueous solution to produce a reduced ion aqueous solution; distilling the resulting reduced ion aqueous solution and recovering the resulting aqueous distillation product comprising 3-hydroxypropionic acid.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: October 15, 2019
    Assignee: CARGILL, INCORPORATED
    Inventors: Timothy Walter Abraham, Erik Allen, John J. Hahn, Paraskevas Tsobanakis, Eric Christopher Bohnert, Christopher Lawrence Frank
  • Publication number: 20160060204
    Abstract: A method for recovering a composition enriched in 3-hydroxypropionic acid by providing the fermentation broth, acidifying the fermentation broth; reducing the total sulfate ion and phosphate ion concentration of the resulting aqueous solution to produce a reduced ion aqueous solution; distilling the resulting reduced ion aqueous solution and recovering the resulting aqueous distillation product comprising 3-hydroxypropionic acid
    Type: Application
    Filed: March 14, 2014
    Publication date: March 3, 2016
    Applicant: Cargill, Incorporated
    Inventors: Timothy Walter ABRAHAM, Erik ALLEN, John J. HAHN, Paraskevas TSOBANAKIS, Eric Christopher BOHNERT, Christopher Lawrence FRANK
  • Publication number: 20160031792
    Abstract: A method for recovering a composition enriched in 3-hydroxypropionic acid from a fermentation broth comprising 3-hydroxypropionic acid and/or salts thereof comprises the steps of: (a) providing the fermentation broth having a pH of from about 2 to about 8 comprising: 3-hydroxypropionic acid and/or salts thereof, (b) acidifying the fermentation broth; (c) reducing the total sulfate ion and phosphate ion (d) distilling the resulting reduced ion aqueous solution and (e) recovering the product.
    Type: Application
    Filed: March 14, 2014
    Publication date: February 4, 2016
    Applicant: Cargill, Incorporated
    Inventors: Timothy Walter ABRAHAM, Erik ALLEN, John J. HAHN, Paraskevas TSOBANAKIS, Eric Christopher BOHNERT, Christopher Lawrence FRANK
  • Publication number: 20140364643
    Abstract: Preparation of derivatives of ?-hydroxycarboxylic acid, including ?-hydroxycarboxylic acid esters, ?,?-unsaturated carboxylic acids, esters of ?,?-unsaturated carboxylic acid, and alkoxy derivatives.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 11, 2014
    Applicant: Cargill, Incorporated
    Inventors: Paraskevas Tsobanakis, Xiangsheng Meng, Timothy Walter Abraham
  • Patent number: 8846353
    Abstract: Preparation of derivatives of ?-hydroxycarboxylic acid, including ?-hydroxycarboxylic acid esters, ?,?-unsaturated carboxylic acid, esters of ?,?-unsaturated carboxylic acid, and alkoxy derivatives, such as preparation of acrylic acid from 3-hydroxypropionic acid.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: September 30, 2014
    Assignee: Cargill, Incorporated
    Inventors: Paraskevas Tsobanakis, Xiangsheng Meng, Timothy Walter Abraham
  • Patent number: 8338145
    Abstract: Preparation of derivatives of ?-hydroxycarboxylic acid, including ?-hydroxycarboxylic acid esters, ?,?-unsaturated carboxylic acid, esters of ?,?-unsaturated carboxylic acid, and alkoxy derivatives.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: December 25, 2012
    Assignee: Cargill, Incorporated
    Inventors: Paraskevas Tsobanakis, Xiangsheng Meng, Timothy W. Abraham
  • Publication number: 20100099910
    Abstract: Processes for preparing carboxylic acids in which a single phase mixture including an ammonium salt of a carboxylic acid is heated in the presence of a non-aqueous solvent to split the salt and form the acid. The acid may be dehydrated to form unsaturated counterparts.
    Type: Application
    Filed: October 3, 2007
    Publication date: April 22, 2010
    Applicant: CARGILL INCORPORATED
    Inventors: Xiangsheng S. Meng, Paraskevas Tsobanakis
  • Publication number: 20090298144
    Abstract: Preparation of derivatives of ?-hydroxycarboxylic acid, including ?-hydroxycarboxylic acid esters, ?,?-unsaturated carboxylic acid, esters of ?,?-unsaturated carboxylic acid, and alkoxy derivatives.
    Type: Application
    Filed: July 21, 2009
    Publication date: December 3, 2009
    Inventors: Paraskevas Tsobanakis, Xiangsheng Meng, Timothy W. Abraham
  • Publication number: 20090110624
    Abstract: There are disclosed methods for producing ammonium, sodium, and/or potassium phosphates that involve reacting phosphate rock with ammonium, sodium and/or potassium hydrogen sulfate.
    Type: Application
    Filed: May 12, 2006
    Publication date: April 30, 2009
    Applicant: CARGILL, INCORPORATED
    Inventors: Xiangsheng S. Meng, Paraskevas Tsobanakis, Charles Sanderson, Ian C. Purtle, Colin G. Weyrauch
  • Patent number: 7279598
    Abstract: Disclosed is a process for separating and recovering 3-hydroxypropionic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid, comprising counter current extracting the aqueous solution with ethyl acetate extractant. Further disclosed is a process for separating and recovering 3-hydroxypropionic acid and acrylic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: October 9, 2007
    Inventors: Xiangsheng Meng, Paraskevas Tsobanakis, Jeffrey Malsam, Timothy Abraham
  • Publication number: 20070219390
    Abstract: A process and apparatus are disclosed for conversion of ?-hydroxy carbonyl compounds forming useful conversion products including, e.g., acrylic acid [CAS No. 79-10-7], acrylates, and acrylamide [CAS No. 79-06-01]. Conversion products find use, e.g., as feedstock and/or end-use chemicals.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 20, 2007
    Applicants: Battelle Memorial Institute, Cargill, Incorporated
    Inventors: Alan Zacher, Johnathan Holladay, Michael Lilga, James White, Danielle Muzatko, Rick Orth, Paraskevas Tsobanakis, Xiangsheng Meng, Timothy Abraham
  • Publication number: 20070219397
    Abstract: A process is disclosed for conversion of ammonium salts of ?-hydroxy carbonyl compounds forming useful conversion products including, e.g., ?, ?-unsaturated carbonyl compounds and/or ammonium salts of ?, ?-unsaturated carbonyl compounds recovered at a high molar yield. Conversion products find use, e.g., as feedstock and/or end-use chemicals.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 20, 2007
    Applicants: Battelle Memorial Institute, Cargill, Incorporated
    Inventors: Johnathan Holladay, Alan Zacher, Michael Lilga, James White, Danielle Muzatko, Rick Orth, Paraskevas Tsobanakis, Xiangsheng Meng, Timothy Abraham
  • Patent number: 7186856
    Abstract: Processes for preparing carboxylic acids and derivatives thereof in which an ammonium salt of the carboxylic acid is heated in the presence of an organic reagent to split the salt and form the acid or, where the organic reagent is an esterifying agent, the corresponding ester. Both the acid and the ester may be dehydrated to form unsaturated counterparts.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: March 6, 2007
    Assignee: Cargill, Incorporated
    Inventors: Xiangsheng Meng, Paraskevas Tsobanakis, Jeffrey Malsam, Timothy W. Abraham
  • Publication number: 20070027342
    Abstract: Disclosed is a process for separating and recovering 3-hydroxypropionic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid, comprising counter current extracting the aqueous solution with ethyl acetate extractant. Further disclosed is a process for separating and recovering 3-hydroxypropionic acid and acrylic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid.
    Type: Application
    Filed: June 25, 2004
    Publication date: February 1, 2007
    Inventors: Xiangsheng Meng, Paraskevas Tsobanakis, Jeffrey Malsam, Timothy Abraham
  • Patent number: 7126034
    Abstract: Disclosed is a process for hydrogenating 3-hydroxypropionic acid, or esters thereof, or mixtures of the acid and the ester, in a liquid phase, in the presence of a ruthenium catalyst, alone, or in combination with at least one or more additional metal catalyst wherein the metal is molybdenum, tungsten, titanium, zirconium, niobium, vanadium, chromium, or mixtures of the metals.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: October 24, 2006
    Assignee: Cargill, Incorporated
    Inventors: Xiangsheng Meng, Timothy W. Abraham, Paraskevas Tsobanakis
  • Publication number: 20060149100
    Abstract: Disclosed is a process for separating and recovering 3-hydroxpropionic acid from an aqueous solution comprising 3-hydroxyproprionic acid and acrylic acid, comprising contacting the aqueous solution with an organic extractant, other than ethyl acetate. Also disclosed are processes for separating acrylic acid from aqueous solutions comprising acrylic acid and an organic extractant involving back extraction with water, or distillation in the presence of water. Further disclosed is a process for separating and recovering 3-hydroxyproprionic acid and acrylic acid from an aqueous solution comprising 3-hydroxyproprionic acid and acrylic acid.
    Type: Application
    Filed: June 25, 2004
    Publication date: July 6, 2006
    Inventors: Xiangsheng Meng, Paraskevas Tsobanakis, Timothy Abraham
  • Publication number: 20050283029
    Abstract: Disclosed is a process for hydrogenating 3-hydroxypropionic acid, or esters thereof, or mixtures of the acid and the ester, in a liquid phase, in the presence of a ruthenium catalyst, alone, or in combination with at least one or more additional metal catalyst wherein the metal is molybdenum, tungsten, titanium, zirconium, niobium, vanadium, chromium, or mixtures of the metals.
    Type: Application
    Filed: October 30, 2003
    Publication date: December 22, 2005
    Inventors: Xiangsheng Meng, Timothy Abraham, Paraskevas Tsobanakis
  • Publication number: 20050221457
    Abstract: Preparation of derivatives of ?-hydroxycarboxylic acid, including ?-hydroxycarboxylic acid esters, ?,?-unsaturated carboxylic acids, esters of ?,?-unsaturated carboxylic acid, and alkoxy derivatives.
    Type: Application
    Filed: March 25, 2003
    Publication date: October 6, 2005
    Inventors: Paraskevas Tsobanakis, Xiangsheng Meng, Timothy Abraham
  • Publication number: 20040210087
    Abstract: Processes for preparing carboxylic acids and derivatives thereof in which an ammonium salt of the carboxylic acid is heated in the presence of an organic reagent to split the salt and form the acid or, where the organic reagent is an esterifying agent, the corresponding ester. Both the acid and the ester may be dehydrated to form unsaturated counterparts.
    Type: Application
    Filed: June 3, 2004
    Publication date: October 21, 2004
    Inventors: Xiangsheng Meng, Paraskevas Tsobanakis, Jeffrey Malsam, Timothy W Abraham