Patents by Inventor Boelo Schuur

Boelo Schuur 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).

  • SEPARATING HYDROCARBONS WITH DIHYDROLEVOGLUCOSENONE OR A DERIVATIVE OF DIHYDROLEVOGLUCOSENONE AS A SOLVENT
    Publication number: 20230201741
    Abstract: The present invention provides a process for separating unsaturated hydrocarbons from a mixture of saturated and unsaturated hydrocarbons, which process comprises the steps of (a) contacting the mixture with a solvent;(b) allowing to form two phases in equilibrium, a first phase comprising solvent and unsaturated hydrocarbons and a second phase comprising the remainder of the mixture; (c) removing the phases separately; and (d) removing from at least one of the phases the hydrocarbons to obtain at least one product stream and regenerated solvent for use in step (a),wherein the solvent comprises dihydrolevoglucosenone or a derivative of dihydrolevoglucosenone.
    Type: Application
    Filed: April 19, 2021
    Publication date: June 29, 2023
    Inventors: Thomas BROUWER, Boelo SCHUUR
  • Process for separating monochloroacetic acid and dichloroacetic acid via extractive distillation using an organic solvent
    Patent number: 9187400
    Abstract: The present invention pertains to a process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation using (a) an extractive agent that is chemically stable and has a BF3 affinity of between 65 kJ/mole and 110 kJ/mole and (b) an organic solvent that is either an acid with a lowest pKa of between 3.0 and 6.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: November 17, 2015
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Johannes Jozef Pragt, Mark Theodorus Gerardus Jongmans, Gerrald Bargeman, Boelo Schuur, Jacobus Theodorus Josef Aaldering, Melle Rinze Nieuwhof, Anton Alexandru Kiss, André Banier De Haan, Alex Londoño Rodriguez, Cornelis Johannes Govardus Van Strien
  • Extraction of carboxylic acids from a dilute aqueous stream
    Patent number: 9102611
    Abstract: A process for removing free carboxylic acid from an aqueous solution including a mass fraction of less than 1% wt of the free carboxylic acid. The process includes the steps of: (a) contacting the aqueous solution with a depleted solvent including a polyamine extractant to obtain an extract enriched in free carboxylic acid and a raffinate having a reduced free carboxylic acid content; and (b) separating the raffinate from the extract, wherein the polyamine extractant is a compound containing at least two nitrogen atoms, and at least one double bond between a nitrogen atom and a carbon atom.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: August 11, 2015
    Assignee: PURAC BIOCHEM B.V.
    Inventors: André Banier De Haan, Agnieszka Krzyzaniak, Boelo Schuur
  • Process for separating monochloroacetic acid and dichloroacetic acid via extractive distillation
    Patent number: 9073848
    Abstract: The present invention pertains to a process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation, comprising the steps of (i) contacting a mixture comprising monochloroacetic acid and dichloroacetic acid with an extractive agent which is chemically stable and which has a BF3 affinity of between 65 kJ/mole and 110 kJ/mole, (ii) distilling the mixture to obtain a monochloroacetic acid stream and a stream comprising dichloroacetic acid and the extractive agent, and (iii) regenerating the extractive agent.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: July 7, 2015
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Mark Theodorus Gerardus Jongmans, Johannes Josef Pragt, Gerrald Bargeman, Boelo Schuur, Jacobus Theodorus Josef Aaldering, André Banier De Haan, Melle Rinze Nieuwhof, Paul Verwer, Anton Alexandru Kiss, Antoon Jacob Berend Ten Kate, Cornelis Johannes Govardus Van Strien
  • PROCESS FOR SEPARATING MONOCHLOROACETIC ACID AND DICHLOROACETIC ACID VIA EXTRACTIVE DISTILLATION USING AN ORGANIC SOLVENT
    Publication number: 20150112097
    Abstract: The present invention pertains to a process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation using (a) an extractive agent that is chemically stable and has a BF3 affinity of between 65 kJ/mole and 110 kJ/mole and (b) an organic solvent that is either an acid with a lowest pKa of between 3.0 and 6.
    Type: Application
    Filed: April 3, 2013
    Publication date: April 23, 2015
    Inventors: Johannes Josef Pragt, Mark Theodorus Gerardus Jongmans, Gerrald Bargeman, Boelo Schuur, Jacobus Aaldering, Melle Rinze Nieuwhof, Anton Alexandru Kiss, André Banier De Haa, Alex Londoño Rodriguez, Cornelis Johannes Govardus Van Strien
  • EXTRACTION OF CARBOXYLIC ACIDS FROM A DILUTE AQUEOUS STREAM
    Publication number: 20140343317
    Abstract: A process for removing free carboxylic acid from an aqueous solution including a mass fraction of less than 1% wt of the free carboxylic acid. The process includes the steps of: (a) contacting the aqueous solution with a depleted solvent including a polyamine extractant to obtain an extract enriched in free carboxylic acid and a raffinate having a reduced free carboxylic acid content; and (b) separating the raffinate from the extract, wherein the polyamine extractant is a compound containing at least two nitrogen atoms, and at least one double bond between a nitrogen atom and a carbon atom.
    Type: Application
    Filed: January 17, 2013
    Publication date: November 20, 2014
    Inventors: André Banier De Haan, Agnieszka Krzyzaniak, Boelo Schuur
  • PROCESS FOR SEPARATING MONOCHLOROACETIC ACID AND DICHLOROACETIC ACID VIA EXTRACTIVE DISTILLATION
    Publication number: 20140121411
    Abstract: The present invention pertains to a process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation, comprising the steps of (i) contacting a mixture comprising monochloroacetic acid and dichloroacetic acid with an extractive agent which is chemically stable and which has a BF3 affinity of between 65 kJ/mole and 110 kJ/mole, (ii) distilling the mixture to obtain a monochloroacetic acid stream and a stream comprising dichloroacetic acid and the extractive agent, and (iii) regenerating the extractive agent.
    Type: Application
    Filed: March 13, 2012
    Publication date: May 1, 2014
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Mark Theodorus Gerardus Jongmans, Johannes Josef Pragt, Gerrald Bargeman, Boelo Schuur, Jacobus Theodorus Josef Aaldering, André Banier De Haan, Melle Rinze Nieuwhof, Paul Verwer, Anton Alexandru Kiss, Antoon Jacob Berend Ten Kate, Cornelis Johannes Govardus Van Strien