发明名称 |
processo para a preparação de 1,4-ciclo-hexanodimetanol |
摘要 |
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. |
申请公布号 |
BR112014001769(A2) |
申请公布日期 |
2017.02.21 |
申请号 |
BR20141101769 |
申请日期 |
2012.07.23 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
BENJAMIN FREDRICK BARTON;BRENT ALAN TENNANT;DAMON BRYAN SHACKELFORD;JEFF SCOTT HOWELL;NOAH GLENN MCMILLAN;PHILLIP WAYNE TURNER;STEVEN LEROY COOK |
分类号 |
C07C29/149;C07C31/27;C07C67/08;C07C67/303;C07C69/75;C07C69/80 |
主分类号 |
C07C29/149 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|