发明名称 |
AN OXIDATION PROCESS TO PRODUCE A PURIFIED CARBOXYLIC ACID PRODUCT VIA SOLVENT DISPLACEMENT AND POST OXIDATION |
摘要 |
<p>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. The low impurity slurry stream is further treated in a secondary oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to form a crystallized slurry stream. The crystallized slurry stream is cooled in a cooling zone and the resulting cooled crystallized slurry stream is routed to a solid-liquid separation zone to generate a purified wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising purified FDCA (pFDCA).</p> |
申请公布号 |
EP2875009(A1) |
申请公布日期 |
2015.05.27 |
申请号 |
EP20130819967 |
申请日期 |
2013.07.17 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
JANKA, MESFIN, EJERSSA;PARKER, KENNY, RANDOLPH;MOODY, PAULA;SHAIKH, ASHFAQ, SHAHANAWAZ;PARTIN, LEE, REYNOLDS;BOWERS, BRADFORD, RUSSELL;MORROW, MICHAEL, CHARLES |
分类号 |
C07D307/68 |
主分类号 |
C07D307/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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