Invention Grant
- Patent Title: Oxidation process to produce a crude dry carboxylic acid product
- Patent Title (中): 氧化过程产生粗制的干燥羧酸产物
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Application No.: US14282360Application Date: 2014-05-20
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Publication No.: US09206149B2Publication Date: 2015-12-08
- Inventor: Mesfin Ejerssa Janka , Kenny Randolph Parker , Ashfaq Shahanawaz Shaikh , 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: C07D307/34
- IPC: C07D307/34 ; C07D307/68 ; C07D307/48

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, cooling a crude carboxylic acid slurry in cooling zone to form a cooled slurry stream. The cooled slurry stream is routed to a solid-liquid separation zone to generate a crude wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising crude FDCA (cFDCA).
Public/Granted literature
- US20140256964A1 OXIDATION PROCESS TO PRODUCE A CRUDE DRY CARBOXYLIC ACID PRODUCT Public/Granted day:2014-09-11
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