Invention Grant
US09156806B2 Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenation
有权
使用氢化纯化粗呋喃2,5-二羧酸的方法
- Patent Title: Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenation
- Patent Title (中): 使用氢化纯化粗呋喃2,5-二羧酸的方法
-
Application No.: US14259754Application Date: 2014-04-23
-
Publication No.: US09156806B2Publication Date: 2015-10-13
- Inventor: Ashfaq Schahanawaz Shaikh , Kenny Randolph Parker , Mesfin Ejerssa Janka , Lee Reynolds Partin
- Applicant: Eastman Chemical Company
- Applicant Address: US TN Kingsport
- Assignee: Eastman Chemical Company
- Current Assignee: Eastman Chemical Company
- Current Assignee Address: US TN Kingsport
- Agency: Phan Law Group PLLC
- Main IPC: A61K31/341
- IPC: A61K31/341 ; C07D307/34 ; C07D307/68

Abstract:
A process to produce a dry purified furan-2,5-dicarboxylic acid (FDCA) is described. After oxidation of 5-(hydroxymethyl)furfural (5-HMF), a crude FDCA stream is produced that is fed to a crystallization zone followed by a solid-liquid displacement zone to form a low impurity slurry stream. The solids in the low impurity slurry stream are dissolved in a dissolution zone to produce a hydrogenation feed that is hydrogenated in a hydrogenation reactor to generate a hydrogenated FDCA composition. The hydrogenated FDCA composition is routed to a crystallization zone to form a crystallized produce stream that is separated from liquid in a solid-liquid separation zone to generate a purified wet cake stream containing FDCA that can be dried in a drying zone to generate a dry purified FDCA product stream.
Public/Granted literature
- US20140235880A1 PROCESS FOR PURIFYING CRUDE FURAN 2,5-DICARBOXYLIC ACID USING HYDROGENATION Public/Granted day:2014-08-21
Information query