The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2014
Filed:
Jul. 29, 2011
Benjamin Fredrick Barton, Kingsport, TN (US);
Steven Leroy Cook, Kingsport, TN (US);
Jeff Scott Howell, Jonesborough, TN (US);
Noah Glenn Mcmillan, Kingsport, TN (US);
Damon Bryan Shackelford, Kingsport, TN (US);
Brent Alan Tennant, Church Hill, TN (US);
Phillip Wayne Turner, Blountville, TN (US);
Benjamin Fredrick Barton, Kingsport, TN (US);
Steven Leroy Cook, Kingsport, TN (US);
Jeff Scott Howell, Jonesborough, TN (US);
Noah Glenn McMillan, Kingsport, TN (US);
Damon Bryan Shackelford, Kingsport, TN (US);
Brent Alan Tennant, Church Hill, TN (US);
Phillip Wayne Turner, Blountville, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
Disclosed is an integrated process for the preparation of 1,4-cyclohexanedimethanol from terephthalic acid. Terephthalic acid is esterified with (4-methylcyclohexyl)methanol and the terephthalate ester hydrogenated to 1,4-cyclohexanedimethanol in a 2-stage process. The (4-methylcyclohexyl)methanol that is formed during the hydrogenation step is recycled to the esterification reaction. Also disclosed is a method for purifying and recovering the 1,4-cyclohexanedimethanol product.