[EN] PROCESS FOR THE PREPARATION OF 1,3-CYCLOHEXANEDIMETHANOL FROM ISOPHTHALIC ACID [FR] PROCÉDÉ DE PRÉPARATION DE 1,3-CYCLOHEXANEDIMÉTHANOL À PARTIR D'ACIDE ISOPHTALIQUE
[EN] PROCESS FOR THE PREPARATION OF 1,3-CYCLOHEXANEDIMETHANOL FROM ISOPHTHALIC ACID [FR] PROCÉDÉ DE PRÉPARATION DE 1,3-CYCLOHEXANEDIMÉTHANOL À PARTIR D'ACIDE ISOPHTALIQUE
PROCESS FOR THE PREPARATION OF 1,3-CYCLOHEXANEDIMETHANOL FROM ISOPHTHALIC ACID
申请人:Barton Benjamin Fredrick
公开号:US20130030222A1
公开(公告)日:2013-01-31
Disclosed is a process for the preparation of 1,3-cyclohexanedimethanol from isophthalic acid. Isophthalic acid is esterified with (3-methylcyclohexyl)methanol and the isophthalate ester hydrogenated to 1,3-cyclohexanedimethanol in a 2-stage process. The (3-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 1,3-cyclohexanedimethanol product.