Heterogeneous catalytic alkylation

US4628127A · kind A · utility

Assignee

• Ethyl Corporation · US

Inventors

• Silas W. Holmes · Columbia, US
• Edward A. Burt · Baton Rouge, US
• Dixie E. Goins · Baton Rouge, US

Key dates

• Filing date: Jun 25, 1985
• Grant date: Dec 9, 1986
• Expiry date: Jun 25, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for producing 2,4-di-substituted phenols wherein an olefin is reacted with phenol in the presence of a heterogeneous catalyst comprising an aluminum phenoxide bonded to an acidic solid polymeric resin to preferably form 2,4-di-substituted phenol. A process for preparing a heterogeneous catalyst and a heterogeneous catalyst having the structure EQU (Resin --A--).sub.m Al(--OC.sub.6 R.sub.5).sub.n (11) wherein Resin is a solid polymeric resin having acidic functional groups A, m is 1 or 2, n is 2 or 3 and the R are independently selected from H, alkyl, cycloalkyl, and aralkyl. Preferably, a styrene-divinylbenzene polymeric resin of a macroreticular structure is used for the alkylation process and A is --SO.sub.3 --.