Production and use of a zeolitic material in a process for the conversion of oxygenates to olefins

US9636668B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Manuela Gaab · Ludwigshafen am Rhein, DE
• Ulrich Müller · Neustadt, DE
• Milan Kostur · Mutterstadt, DE
• Kirsten Spannhoff · Stockach, DE
• Kerem Bay · Ludwigshafen, DE
• Andrei-Nicolae Parvulescu · Ludwigshafen am Rhein, DE

Key dates

• Filing date: Nov 11, 2013
• Grant date: May 2, 2017
• Expiry date: Jun 20, 2035

Classification

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

Abstract

Described is a process for the production of a zeolitic material having an MFI, MEL, and/or MWW-type framework structure comprising YO2 and X2O3. The process comprises (1) preparing a mixture comprising one or more sources for YO2, one or more sources for X2O3, and one or more solvents; (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material having an MFI, MEL and/or MWW-type framework structure; and (3) impregnating the zeolitic material obtained in step (2) with one or more elements selected from the group of alkaline earth metals. Y is a tetravalent element, and X is a trivalent element. The mixture crystallized in step (2) contains 3 wt.-% or less of one or more elements M based on 100 wt-% of YO2, wherein M stands for sodium.