Process for preparation of Ag—W oxide catalyst for the selective conversion of propylene to propylene oxide with molecular oxygen

US9174200B2 · kind B2 · utility

Assignee

• COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH · IN

Inventors

• Rajaram Bal · Dehradun, IN
• Shilpi Ghosh · Dehradun, IN
• Shubhra Acharyya Shanka · mohkampur, IN
• Bipul Sarkar · Bengaluru, IN
• Chandrashekar Pendem · Dehradun, IN
• Rajib Kumar Singha · Dehradun, IN

Key dates

• Filing date: Dec 21, 2012
• Grant date: Nov 3, 2015
• Expiry date: Dec 21, 2032

Classification

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

Abstract

The present invention provides a process for preparation of Ag—W oxide catalyst for the direct and selective conversion of propylene to propylene oxide. The process provides a direct single step selective vapor phase oxidation of propylene to propylene oxide using molecular oxygen over Ag—W oxide catalysts. The process provides propylene conversion of 10-50% and selectivity for propylene oxide up to 100%.