公开(公告)号：US20230020208A1

公开(公告)日：2023-01-19

申请号：US17780063

申请日：2020-12-18

Applicant: Furanix Technologies B.V.

Inventor： Jeffrey John Kolstad ,  Ana Sofia Vagueiro De Sousa Dias ,  Johannes Maria Franciscus Sijben ,  Ana Rita Martins Guerreiro Rocha Almeida ,  Ines Dacil Gonzalez Jimenez

IPC: C07D307/68 ,  C08G63/672

Abstract: Thermal treatment of purified FDCA for producing a carboxylic acid composition, the process comprising the steps of providing or producing a thermal treatment composition comprising a purified carboxylic acid composition and an organic acid containing treatment solvent composition; subjecting the thermal treatment composition to an elevated temperature, wherein the FDCA is partially dissolved, and cooling the treated composition and separating at least a portion of the FDCA from the treated composition to obtain a carboxylic acid composition.

公开(公告)号：US20230002338A1

公开(公告)日：2023-01-05

申请号：US17780080

申请日：2020-12-18

Applicant: Furanix Technologies B.V.

Inventor： Jeffrey John Kolstad ,  Ana Sofia Vagueiro De Sousa Dias ,  Johannes Maria Franciscus Sijben ,  Ana Rita Martins Guerreiro Rocha Almeida ,  Ines Dacil Gonzalez Jimenez

IPC: C07D307/68 ,  C08G63/672

Abstract: Thermal treatment of purified 2,5-furandicarboxylic acid (FDCA) for producing a carboxylic acid composition, the process comprising the steps of providing or producing a thermal treatment composition comprising a purified carboxylic acid composition and a water containing treatment solvent composition; subjecting the thermal treatment composition to an elevated temperature, wherein the FDCA is partially dissolved, and cooling the treated composition and separating at least a portion of the FDCA from the treated composition to obtain a carboxylic acid composition.