PROCESS FOR THE PRODUCTION OF PHENOL AND ACETOPHENONE FROM HEAVY ENDS FRACTION OF CUMENE HYDROPEROXIDE REACTION MIXTURE.

摘要

A process for treating the heavy ends fraction of cumene hydroperoxide cleavage reaction  mixture wherein an azeotrope of phenol-acetophenone is formed in the said heavy ends fraction and the phenol product obtained therefrom is comprised of hydrocarbons, phenols and acetophenone with the weight ratio of acetophenone to said product is less than the weight ratio of acetophenone to phenol in said heavy ends fraction, characterized by establishing and maintaining said fraction (a) in the temperature range of from about 275 to about 420C at which pyrolysis of the pyrolyzable portion of said fraction to phenol and hydrocarbons occurs and (b) at substantial superatmospheric pressure of about 5 to 50 pisg until substantial pyrolysis of the pyrolyzable portion of said fraction to phenol and hydrocarbons occurs, whereby said product is formed as a vapor, and removing said vaporous product from the residue of said fraction.