公开(公告)号：US20160311790A1

公开(公告)日：2016-10-27

申请号：US15200467

申请日：2016-07-01

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： MESFIN EJERSSA JANKA ,  KENNY RANDOLPH PARKER ,  ASHFAQ SHAHANAWAZ SHAIKH ,  LEE PARTIN REYNOLDS ,  CHARLES EDWIN SUMNER ,  SHANE KIPLEY KIRK

IPC: C07D307/68

CPC classification number: C07D307/68 ,  B01D11/0446

Abstract: A process for purifying a crude furan 2,5-dicarboxylic acid composition (cFDCA) by hydrogenation of a FDCA composition dissolved in a hydrogenation solvent such as water, and hydrogenating under mild conditions, such as at a temperature within a range of 130° C. to 225° C. by contacting the solvated FDCA composition with hydrogen in the presence of a hydrogenation catalyst under a hydrogen partial pressure within a range of 10 psi to 900 psi. A product FDCA composition is produced having a low amount of tetrahydrofuran dicarboxylic acid, a low b*, and a low amount of 5-formyl furan-2-carboxylic acid (FFCA).

Abstract translation: 通过氢化溶解在氢化溶剂如水中的FDCA组合物，并在温和条件下（例如在130℃的温度范围内）氢化来纯化粗呋喃2,5-二羧酸组合物（cFDCA）的方法 通过在10psi至900psi的氢分压下，在氢化催化剂存在下使溶剂化的FDCA组合物与氢气接触。 制备具有少量四氢呋喃二羧酸，低b *和少量5-甲酰基呋喃-2-羧酸（FFCA）的产品FDCA组合物。