Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno

Earl Lawrence Vincent Goetheer

Marc Crockatt

Dirk Verdoes

Roman Latsuzbaia

Cornelis Petrus Marcus Roelands

Johan Urbanus

Jan Hendrik Hanemaaijer

Johannes Van Der Meer

Elena Pérez Gallent

Roel Johannes Martinus Bisselink

Peter Geerdink

Martin Mohana

Erik Everhardus Bernardus Meuleman

Eva Sanchez Fernandez

Anca Anastasopol

Francesc Sastre Calabuig

Richard Antonius Van Heck

Juliana Garcia Moretz-Sohn Monteiro

Arjen Huizinga

Purvil Maganlal Khakharia

The invention relates to a method for electrochemical production of a product in an electrochemical cell comprising an extraction compartment. The extraction compartment comprises a liquid comprising a dissolved polyelectrolyte. The method comprises producing cations at an anode, producing anions at a cathode and transporting the ions through ion-selective membranes into the extraction compartment where the product is formed. The invention further relates to an electrochemical cell for use in the method.

Method for electrochemical production of a product in a cell comprising a polyelectrolyte

The invention is directed to a process for the preparation of maleic acid or a derivative thereof. Said process comprising an electrochemical oxidation of a furoic acid compound into maleic acid in an electrolyte solution; and optionally further comprising a step of reacting the maleic acid to the derivative thereof. In an alternative embodiment, said process comprising a first step comprising an electrochemical oxidation in an electrolyte solution of a furanic compound into one or more intermediates; followed by a second step comprising a chemo-catalytic oxidation of said intermediates to provide maleic acid or a derivative thereof.

Oxidative preparation of maleic acid

In accordance with the present invention there is provided a method for deoxygenation of a first liquid, which method comprises contacting said first liquid with a membrane, which membrane is on its filtrate side in contact with a second liquid comprising an oxygen scavenger. There is provided a second method for deoxygenation of a first liquid which method comprises contacting said first liquid with a membrane, which membrane is on its filtrate side in contact with an oxygen-lean sweep gas. The invention is also directed to an apparatus for carrying out these methods. The present invention provides a very efficient means to deoxygenate liquids of all sorts, such as COscrubbing solutions and beverages.

Method and apparatus for deoxygenation of liquids

The disclosure is directed to a method for in-situ extracting a reduced carbon dioxide product or product mixture in an electrochemical cell, and the use of a three-compartment electrochemical cell for in-situ extraction of organic carboxylic acids such as formic acid, acetic acid, oxalic acid, glycolic acid, tartaric acid, malonic acid, propionic acid, glyoxylic acid, and/or salts thereof.

Method for electrochemically reducing carbon dioxide

The invention is directed to a process for the preparation of formaldehyde, the process comprising electrochemically reducing CO to form formaldehyde. The process is carried out in a supporting electrolyte that comprises less than 50% water and a non-aqueous solvent such as an alcohol.

Electrochemical production of formaldehyde

The invention is directed to a process for preparing maleic acid or a derivative thereof, the process comprising a step b) of oxidizing 5-hydroxy-2(5H)-furanone and/or cis-β-formylacrylic acid to maleic acid or a derivative thereof by contacting the 5-hydroxy-2(5H)-furanone and/or cis-β-formylacrylic acid with molecular oxygen (O) in the presence of a catalyst. In a particular embodiment, the step b) is preceded by a step a) of oxidizing a furanic compound according to formula I into the 5-hydroxy-2(5H)-furanone and/or cis-β-formylacrylic acid, wherein Ris H, CHOH, COH or CHO and Ris H, OH, C-Calkyl or O(C-Calkyl), or esters, ethers, amides, acid halides, anhydrides, carboximidates, nitriles, and salts of formula I.

Oxidation of 5-hydroxy-2-furanone to maleates

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Mol, Belgium

Earl Lawrence Vincent Goetheer