Process for the production of acrolein by catalytic gas-phase oxidation of propene

US5072052A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Wolfgang Boeck · Langenselbold, DE
• Dietrich Arntz · Oberursel, DE
• Guenter Prescher · Hanau, DE
• Werner Burkhardt · Wächtersbach, DE

Key dates

• Filing date: Sep 12, 1990
• Grant date: Dec 10, 1991
• Expiry date: Sep 12, 2010

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2523/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the production of acrolein by catalytic gas-phase oxidation of propene with air in the presence of steam and an inert gas or waste gas from the reaction, the starting materials being passed in defined quantitative ratios at 300.degree. to 380.degree. C. under 1.4 to 2.2 bar pressure over a catalyst containing the combination of elements MoFeCoNiBiP(As)K(Rb,Cs)SmSiO in the form of a bed of individual elements, the catalyst elements fulfilling certain geometric conditions and a number of critical physico-chemical parameters and a specific load of 2 to 8 mol propene/dm.sup.3 catalyst bed/h being adjusted.