发明名称 FURAN-2,5-DICARBOXYLIC ACID PURGE PROCESS
摘要 Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.
申请公布号 US2016332979(A1) 申请公布日期 2016.11.17
申请号 US201615217319 申请日期 2016.07.22
申请人 EASTMAN CHEMICAL COMPANY 发明人 Fontenot Kevin John;Janka Mesfin Ejerssa;Parker Kenny Randolph;Shaikh Ashfaq Shahanawaz;Partin Lee Reynolds;Sumner, JR. Charles Edwan;Kirk Shane Kipley;Moody Paula;Bowers Bradford Russell;Morrow Michael Charles
分类号 C07D307/68;B01J23/889;B01J10/00 主分类号 C07D307/68
代理机构 代理人
主权项 1. A process for producing a carboxylic acid composition, said process comprising: oxidizing in a primary oxidation zone, at least one oxidizable compound comprising at least one selected from the group consisting of 5-(hydroxymethyl)furfural (5-HMF), 5-(chloromethyl)furfural (5-CMF), 2,5-dimethylfuran (2,5 -DMF), 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), alkylcarboxylate of methyfuran (5-R′″O(CO)-methylfuran, where R′″=alkyl, cycloalkyl), alkylcarboxylate of alkoxyfuran (5-R″″O(CO)—OR′″″furan, where R″″=alkyl, cycloalkyl and aryl and 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, mixed feed-stocks of 5-HMF and 5-alkyl furfurals, mixed feed-stocks of 5-HMF and 5-CMF, mixed feed-stocks of 5-HMF and 2,5-DMF, mixed feed-stocks of 5-HMF and alkylcarboxylate of methyfuran, mixed feed-stocks of 5-HMF and alkylcarboxylate of alkoxyfuran, in the presence of a solvent stream, an oxidizing gas, and a catalyst system at a temperature of about 110° C. to about 220° C. to produce said carboxylic acid composition comprising furandicarboxylic acid at a yield of 80% or more; wherein said primary oxidation zone comprises at least one oxidation reactor, wherein said at least one oxidation reactor in said oxidation zone has been previously used in an terephthalic acid and/or isophthalic acid process,
地址 Kingsport TN US