公开(公告)号：US20180290994A1

公开(公告)日：2018-10-11

申请号：US16004549

申请日：2018-06-11

Applicant: EASTMAN CHEMICAL COMPANY

Inventor： MESFIN EJERSSA JANKA ,  KENNY RANDOLPH PARKER ,  PAULA MOODY ,  ASHFAQ SHAHANAWAZ SHAIKH ,  LEE REYNOLDS PARTIN ,  BRADFORD RUSSELL BOWERS ,  MICHAEL CHARLES MORROW

IPC: C07D307/68 ,  C07D307/60

Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound selected from the following group: 5-(hydroxymethyl)furfural (5-HMF), 5-HMF esters (5-R(CO)OCH2-furfural where R=alkyl, cycloalkyl and aryl), 5-HMF ethers (5-R′OCH2-furfural, where R′=alkyl, cycloalkyl and aryl), 5-alkyl furfurals (5-R″-furfural, where R″=alkyl, cycloalkyl and aryl), mixed feed-stocks of 5-HMF and 5-HMF esters and mixed feed-stocks of 5-HMF and 5-HMF ethers and mixed feed-stocks of 5-HMF and 5-alkyl furfurals to generate a crude carboxylic acid slurry comprising FDCA, removing impurities from a crude carboxylic acid slurry in a liquid displacement zone to form a low impurity slurry stream.