公开(公告)号：US20240391890A1

公开(公告)日：2024-11-28

申请号：US18695867

申请日：2022-09-16

Applicant: Furanix Technologies B.V.

Inventor： Ana Sofia Vagueiro De Sousa Dias ,  Jeffrey John Kolstad ,  Johannes Maria Franciscus Sijben ,  Jagdeep Singh

IPC: C07D307/46

Abstract: A process for the preparation of a furfural derivative includes (i) reacting a fructose- and/or glucose-containing starting material with a liquid hydroxyl group-containing organic compound in the presence of an acid to produce an acid reaction mixture including the furfural derivative; (ii) neutralizing at least part of the acid reaction mixture obtained in step (i) to provide a partially neutralized reaction mixture, (iii) separating at least part of the partially neutralized reaction mixture obtained in step (ii) to obtain a stream depleted of furfural derivative and a stream including furfural derivative; (iv) contacting at least part of the depleted stream obtained in step (iii) with a solvent to obtain a mixture of the solvent and the depleted stream; and (v) separating at least part of the mixture obtained in step (iv) into solvent containing the furfural derivative and a stream further depleted of the furfural derivative.

公开(公告)号：US09896425B2

公开(公告)日：2018-02-20

申请号：US14914972

申请日：2014-08-29

Applicant: FURANIX TECHNOLOGIES B.V.

Inventor： Jagdeep Singh ,  Benjamin McKay ,  Bing Wang ,  Matheus Adrianus Dam ,  Gerardus Johannes Maria Gruter ,  Ana Sofia Vagueiro De Sousa Dias

IPC: C07D307/68 ,  C07B63/02

CPC classification number: C07D307/68 ,  C07B63/02

Abstract: An acid composition comprising 2-formyl-furan-5-carboxylic acid and 2,5-furandicarboxylic acid is purified in a process which comprises; contacting the acid composition with an alcohol to obtain an esterified composition; and separating the ester of 2-formyl-furan-5-carboxylic acid from the esterified composition to obtain a purified esterified product; and contacting the purified esterified composition with water for saponification or hydrolysis, to obtain a product composition, comprising 2,5-furandicarboxylic acid and a reduced amount of 2-formyl-furan-5-carboxylic acid.