Patent ID: 8030525
Filing Date: 2011-10-04
Classification: C07C

Abstract:
1. A method for producing phenol and acetone in a multi-state process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, the method comprising the steps of: (a) reacting the cumene hydroperoxide mixture with a 2-hydroxybenzenesulfonic acid catalyst having a concentration of 0.1 to 1 mmol/L acid catalyst to form a second mixture comprising phenol, acetone and dicumyl peroxide in a first state, wherein the 2-hydroxybenzenesulfonic acid catalyst is selected from the group consisting of 2-hydroxy-5-cumyl-benzenesulfonic acid, 3,3′-propane-2,2-diyl-bis-(6-hydroxybenzenesulfonic) acid, 2-hydroxy-5-chlorobenzenesulfonic acid, 2-hydroxy-5-methoxybenzenesulfonic acid, 2-hydroxy-5-methylbenzenesulfonic acid, 2-hydroxy-4-t-butyl-benzenesulfonic acid and 2-hydroxybenzenesulfonic acid, and (b) decomposing the second mixture in a second stage to produce a third mixture comprising phenol and acetone.