Patents by Inventor Svenia Duefert

Svenia Duefert 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).

  • Process for preparing furan-2,5-dicarboxylic acid
    Patent number: 10428039
    Abstract: Provided herein is a process for preparing furan-2,5-dicarboxylic acid. The process includes the following steps: (A-1) preparing a starting mixture comprising one, two or more carbohydrate compounds selected from the group consisting of: hexoses, oligosaccharides comprising hexose units, and polysaccharides including hexose units, and as a solvent or as a co-solvent for the carbohydrate compounds an amount of one or more carboxylic acid esters of a formula (II) and (A-2) subjecting the starting mixture to reaction conditions so that at least one of the one, two or more carbohydrate compounds reacts, and a fraction of the amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, resulting in a mixture including 5-(hydroxymethyl)furfural and/or the one or more HMF esters of a formula (I), one or more carboxylic acids of a formula (III) and a remaining fraction of the amount of one or more carboxylic acid esters of formula (II).
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: October 1, 2019
    Assignee: BASF SE
    Inventors: Alvaro Gordillo, Martin Alexander Bohn, Stephan A. Schunk, Ivana Jevtovikj, Rene Backes, Holger Werhan, Svenia Duefert, Richard Dehn, Markus Piepenbrink
  • Process for preparing a mixture comprising 5-(hydroxymethyl) furfural and specific HMF esters
    Patent number: 10259797
    Abstract: Provided herein is a process for preparing a mixture including 5-(hydroxy-methyl)furfural (HMF) and one or more HMF esters of formula (I), the process including the following steps: (A-1) preparing or providing a starting mixture which includes one, two or more carbohydrate compounds and as the solvent or as a co-solvent for the carbohydrate compounds an amount of one or more carboxylic acid esters of formula (II); (A-2) subjecting the starting mixture to reaction conditions so that at least one of the one, two or more carbohydrate compounds reacts, and a fraction of the amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, so that a mixture results that includes 5-(hydroxy-methyl)furfural and/or the one or more HMF esters of formula (I), one or more carboxylic acids of formula (III) and a remaining fraction of the amount of one or more carboxylic acid esters of formula (II).
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: April 16, 2019
    Assignee: BASF SE
    Inventors: Alvaro Gordillo, Martin Alexander Bohn, Stephan A Schunk, Ivana Jevtovikj, Holger Werhan, Svenia Duefert, Markus Piepenbrink, Rene Backes, Richard Dehn
  • A PROCESS FOR PREPARING A MIXTURE COMPRISING 5-(HYDROXYMETHYL) FURFURAL AND SPECIFIC HMF ESTERS
    Publication number: 20180319759
    Abstract: Provided herein is a process for preparing a mixture including 5-(hydroxy-methyl)furfural (HMF) and one or more HMF esters of formula (I), the process including the following steps: (A-1) preparing or providing a starting mixture which includes one, two or more carbohydrate compounds and as the solvent or as a co-solvent for the carbohydrate compounds an amount of one or more carboxylic acid esters of formula (II); (A-2) subjecting the starting mixture to reaction conditions so that at least one of the one, two or more carbohydrate compounds reacts, and a fraction of the amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, so that a mixture results that includes 5-(hydroxy-methyl)furfural and/or the one or more HMF esters of formula (I), one or more carboxylic acids of formula (III) and a remaining fraction of the amount of one or more carboxylic acid esters of formula (II).
    Type: Application
    Filed: November 3, 2016
    Publication date: November 8, 2018
    Inventors: Alvaro Gordillo, Martin Alexander Bohn, Stephan A Schunk, Ivana Jevtovikj, Holger Werhan, Svenia Duefert, Markus Piepenbrink, Rene Backes, Richard Dehn
  • A PROCESS FOR PREPARING FURAN-2,5-DICARBOXYLIC ACID
    Publication number: 20180319758
    Abstract: Provided herein is a process for preparing furan-2,5-dicarboxylic acid. The process includes the following steps: (A-1) preparing a starting mixture comprising one, two or more carbohydrate compounds selected from the group consisting of: hexoses, oligosaccharides comprising hexose units, and polysaccharides including hexose units, and as a solvent or as a co-solvent for the carbohydrate compounds an amount of one or more carboxylic acid esters of a formula (II) and (A-2) subjecting the starting mixture to reaction conditions so that at least one of the one, two or more carbohydrate compounds reacts, and a fraction of the amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, resulting in a mixture including 5-(hydroxymethyl)furfural and/or the one or more HMF esters of a formula (I), one or more carboxylic acids of a formula (III) and a remaining fraction of the amount of one or more carboxylic acid esters of formula (II).
    Type: Application
    Filed: November 3, 2016
    Publication date: November 8, 2018
    Inventors: Alvaro Gordillo, Martin Alexander Bohn, Stephan A Schunk, Ivana Jevtovikj, Rene Backes, Holger Werhan, Svenia Duefert, Richard Dehn, Markus Piepenbrink