The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2023
Filed:
Sep. 30, 2019
Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, The Hague, NL;
Marc Crockatt, 's-Hertogenbosch, NL;
Carol Andrea Roa Engel, Delfgauw, NL;
Cornelis Petrus Marcus Roelands, Voorschoten, NL;
Johannes Van Der Meer, Loenen aan de Vecht, NL;
Nederlandse Organisatie voor toegepastnatuurwetens, The Hague, NL;
Abstract
The invention is directed to a method for the preparation, in particular for the purification of 2,5-furandicarboxylic acid or a salt thereof, comprising crystallization of a 2,5-furandicarboxylic acid mono salt and then crystallizing 2,5-furandicarboxylic diacid from this mono salt. Preferably, the method is at least partially carried out in a continuous or semi-continuous manner, preferably at least partially in one or more continuous mixed-suspension mixed product removal (MSMPR) crystallizers in series.