Patent ID: 8937201
Filing Date: 2015-01-20
Classification: C07C

Abstract:
1. A process for producing 2,6-di-tert-butyl phenol, comprising reacting a phenol with a C 4 raffinate stream containing (a) isobutylene, and (b) 1-butene and/or 2-butene under reaction conditions, including a reaction temperature ranging from about 50° C. to about 150° C. and under pressure ranging from 0 to 500 psig, that selectively react the isobutylene with the phenol to produce the 2,6-di-tert-butyl phenol without substantially reacting the 1-butene or 2-butene with the phenol, wherein the molar ratio of isobutylene to phenol ranges from about 0.5:1 to about 3:1, and wherein the phenol reacts with the isobutylene to yield at least 76% by weight of the 2,6-di-tert-butyl phenol.