Epoxidation process using supported silver catalysts pretreated with organic chloride

US5770746A · kind A · utility

Assignee

• Arco Chemical Technology, L.P. · US

Inventors

• Bernard Cooker · Malvern, US
• Anne Mae Gaffney · West Chester, US
• Jennifer D. Jewson · Boyertown, US
• Andrew P. Kahn · Eagleville, US
• Rangasamy Pitchai · West Chester, US

Key dates

• Filing date: Jun 23, 1997
• Grant date: Jun 23, 1998
• Expiry date: Jun 23, 2017

Classification

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

Abstract

A propylene epoxidation process wherein a supported silver catalyst is utilized may be operated at high efficiency even in the absence of any organic chloride in the feedstream, provided the catalyst is first contacted at an elevated temperature with a treatment stream comprised of an organic chloride and molecular oxygen.