Eastman Chemical Company

Mesfin Ejerssa Janka

Ashfaq Shahanawaz Shaikh

Kenny Randolph Parker

Lee R Partin

Michael Charles Morrow

Bradford Russell Bowers

Charles Edwan Sumner, Jr

David Lange

Kevin John Fontenot

Paula Moody

Robert Thomas Hembre

Shane Kipley Kirk

Scott Donald Barnicki

Stephen Neal Falling

Jason Christopher Jenkins

Matthew Clarke

John Dayton Baker, Jr

Joseph Robert Zoeller

Robert Sterling Kline

Thomas Shanks

Kelley Margaret Moran

Leo Iu

Stephanie Rollins Testerman

Charles Sumner

Patrice L Riesenberg

Stephanie Nicole Rollins

Timothy Alan Upshaw

Andrew James Vetter

Robert Scott Huss

Adam Scott Howard

William Lee Cook

Xiaopeng Shan

Dewey Wayne Fuller, Jr

Craig Steven Dunn

Kenny Raldolph Parker

Ashfaq Schahanawaz Shaikh

Stephanie Nicole Rollins-Testerman

Lee Reynolds Parton

Lee Reynolds Partin

Charles Edwan Summer

David Milton Lange

Charles Edward Sumner

Thomas Elbert Shanks

A process for preparing 5-(alkoxycarbonyl)furan-2-carboxylic acids (ACFC) by oxidizing various furcates in the presence of a catalyst containing cobalt, manganese, and bromine, and a solvent while simultaneously removing water vapor from the reaction chamber. The process can produce ACFC with high purity and low color, and in high yield.

Efficient process for producing 5-(alkoxycarbonyl)-furan-2-carboxylic acids

Disclosed herein is a very efficient method to make 5-(alkoxycarbonyl)furan-2-carboxylic acids (ACFC) from feedstocks comprised of furoates. When a feedstock comprised of methyl 5-methylfuran-2-carboxylate (MMFC) is used a product comprised of (5-(methoxycarbonyl)furan-2-carboxylic acid (MCFC) is obtained in high yield.

Oxidation process to produce 5 methyl 5-methylfuran-2-carboxylate (MMFC)

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.

Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plant

Disclosed is a purified dialkyl furan dicarboxylate (DAFD) vapor composition containing at least 99.5 wt. % DAFD; 5-(alkoxycarbonyl) furan-2-carboxylic acid (ACFC) that, if present, is present in an amount of not more than 1000 ppm, alkyl-5-formylfuran-2-carboxylate (AFFC) that, if present, is present in an amount of not more than 1000 ppm, 5-(dialkoxymethyl)furan-2-carboxylic acid (DAFCA) that if present, is present in an amount of not more than 1000 ppm, and alkyl 5-(dialkoxymethyl)furan-2-carboxylate (ADAFC) that if present, is present in an amount of not more than 1000 ppm, in each case based on the weight of the DAFD vapor composition.

Method for producing purified dialkyl-furan-2,5-dicarboxylate

Oxidation process to produce 5-(alkoxycarbonyl)furan-2-carboxylic acids (ACFC)

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.

Furan-2, 5-dicarboxylic acid purge process

Furan-2,5-dicarboxylic acid purge process

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.

Growing community of inventors

Kingsport, TN, United States of America

Mesfin Ejerssa Janka