- 专利标题: PURIFIED DIALKYL-FURAN-2,5-DICARBOXYLATE VAPOR
-
申请号: EP19183646.9申请日: 2013-06-10
-
公开(公告)号: EP3590930A1公开(公告)日: 2020-01-08
- 发明人: Partin, Lee Reynolds , Shaikh, Ashfaq Shahanawaz , Janka, Mesfin Ejerssa , Parker, Kenny Randolph
- 申请人: Eastman Chemical Company
- 申请人地址: 200 South Wilcox Drive Kingsport, TN 37660 US
- 专利权人: Eastman Chemical Company
- 当前专利权人: Eastman Chemical Company
- 当前专利权人地址: 200 South Wilcox Drive Kingsport, TN 37660 US
- 代理机构: Ricker, Mathias
- 优先权: US201213530738 20120622
- 主分类号: C07D307/68
- IPC分类号: C07D307/68
摘要:
Disclosed is a process to produce a purified vapor comprising dialkyl-furan-2,5-dicarboxylate (DAFD). Furan-2,5-dicarboxylic acid (FDCA) and an alcohol in an esterification zone to generate a crude diester stream containing dialkyl furan dicarboxylate (DAFD), unreacted alcohol, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and alkyl furan-2-carboxylate (AFC). The crude diester stream is fed to a flash evaporation zone to produce a vapor alcohol composition and a first liquid DAFD rich composition. At least a portion of the remaining alcohol can be separated from the first liquid DAFD rich composition to produce a second alcohol vapor and a second liquid DAFD rich composition, followed by separating AFC from the second liquid DAFD rich composition to product an AFC vapor and a partially purified DAFD rich composition, followed by separating a portion of the DAFD from the partially purified DAFD rich composition to produce a purified DAFD vapor.
信息查询