| abstract |
The present invention relates to a process for the hydrogenation of phthalate compounds. According to the hydrogenation process of the present invention, the activity of the catalyst used for the reaction is maintained for a long period of time and the performance of the catalyst is increased, thereby improving the stability and economical efficiency of the hydrogenation process. Therefore, the total amount of the catalyst required for the reaction can be reduced and the replacement period can be extended, which can improve the operation stability of the process and the economical efficiency in the process operation in a commercial scale. |