公开(公告)号：US20190023677A1

公开(公告)日：2019-01-24

申请号：US15925867

申请日：2018-03-20

申请人： KEVIN JOHN FONTENOT ,  Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Ashfaq Shahanawaz Shaikh

发明人： KEVIN JOHN FONTENOT ,  Mesfin Ejerssa Janka ,  Kenny Randolph Parker ,  Ashfaq Shahanawaz Shaikh

IPC分类号： C07D307/68 ,  B01D3/00 ,  B01D19/00

CPC分类号： C07D307/68 ,  B01D3/002 ,  B01D3/06 ,  B01D5/003 ,  B01D8/00 ,  B01D19/0036 ,  C08G63/181 ,  C08G63/66 ,  C08G63/672 ,  C08G63/78 ,  C08G63/785

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 esterification zone comprises at least one reactor that has been previously used in an DMT process.

公开(公告)号：US06527690B2

公开(公告)日：2003-03-04

申请号：US09871695

申请日：2001-06-04

申请人： Bhaskar Krishna Arumugam ,  Michael Eugene Burns ,  Dimmick Lee Bymaster ,  Jeffrey Scott DuPont ,  Robert Richard Dykstra ,  Robert Lee Eagan ,  Eddie Joseph Eckart ,  Jarvey Eugene Felty, Jr. ,  Kevin John Fontenot ,  Jeffrey William Green ,  Shane Kipley Kirk ,  Gary Paul Lutz ,  Tony Lee Sander ,  Thomas Hugh Williams ,  George Chester Zima

发明人： Bhaskar Krishna Arumugam ,  Michael Eugene Burns ,  Dimmick Lee Bymaster ,  Jeffrey Scott DuPont ,  Robert Richard Dykstra ,  Robert Lee Eagan ,  Eddie Joseph Eckart ,  Jarvey Eugene Felty, Jr. ,  Kevin John Fontenot ,  Jeffrey William Green ,  Shane Kipley Kirk ,  Gary Paul Lutz ,  Tony Lee Sander ,  Thomas Hugh Williams ,  George Chester Zima

IPC分类号： C07C23100

CPC分类号： C07C303/44 ,  C07C309/42

摘要： The invention relates to a process for purifying and decolorizing a phenyl ester salt. The process combines a phenyl ester salt with a solvent to form a mixture and then stirs the mixture to form a slurry. The phenyl ester salt is substantially insoluble in this solvent. The process then collects the phenyl ester salt from the slurry. The collected phenyl ester salt may then be optionally dried or recrystallized. The collected phenyl ester salt is dissolved in a solvent to form a solution. The solution is decolorized and then spray dried to form a powder of the phenyl ester salt. As a result of the process the phenyl ester salt powder has a higher purity and an improved color as compared to the starting phenyl ester salt.