公开(公告)号：US20180244595A1

公开(公告)日：2018-08-30

申请号：US15758010

申请日：2016-09-07

Applicant: BASF SE

Inventor： Kai-Uwe SCHOENING ,  Walid AL-AKHDAR ,  Tiziano NOCENTINI ,  Gerard VILAIN

IPC: C07C37/14 ,  B01J31/22

CPC classification number: C07C37/14 ,  B01J31/00 ,  B01J31/2226 ,  C07C39/06

Abstract: The present invention relates to a process for the preparation of 2,6-di-tert-butyl phenol by reacting phenol with isobutylene in presence of an aluminum phenoxide catalyst, comprising i) preparing an aluminum phenoxide catalyst and phenol comprising mixture a) by mix-ing aluminum metal with phenol, and activating the catalyst by heating the mixture to a temperature of 100 to 180° C., and ii) carrying out a reaction b) by reacting mixture a) with an isobutylene comprising stream comprising 20 to 90% by weight of isobutylene and 10 to 80% by weight of 1-butene and/or 2-butene, which reaction is carried out under pressure and the maximum pressure is 5 to 20 bar.