Invention Grant
- Patent Title: Process for the preparation of 1,4-cyclohexanedimethanol
- Patent Title (中): 1,4-环己烷二甲醇的制备方法
-
Application No.: US13194024Application Date: 2011-07-29
-
Publication No.: US08410317B2Publication Date: 2013-04-02
- Inventor: Phillip Wayne Turner , Steven Leroy Cook , Benjamin Fredrick Barton , Jeff Scott Howell , Noah Glenn McMillan , Damon Bryan Shackelford , Brent Alan Tennant
- Applicant: Phillip Wayne Turner , Steven Leroy Cook , Benjamin Fredrick Barton , Jeff Scott Howell , Noah Glenn McMillan , Damon Bryan Shackelford , Brent Alan Tennant
- Applicant Address: US TN Kingsport
- Assignee: Eastman Chemical Company
- Current Assignee: Eastman Chemical Company
- Current Assignee Address: US TN Kingsport
- Agent Eric D. Middlemas; Louis N. Moreno
- Main IPC: C07C35/08
- IPC: C07C35/08

Abstract:
Disclosed is a 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. After removal of the (4-methylcyclohexyl)methanol from the crude hydrogenation product, the 1,4-cyclohexanedimethanol product can be recovered and purified by a phase separation and distillation.
Public/Granted literature
- US20130030219A1 PROCESS FOR THE PREPARATION OF 1,4-CYCLOHEXANEDIMETHANOL Public/Granted day:2013-01-31
Information query