Process for the production of metal doped zeolites and zeotypes and application of same to the catalytic remediation of nitrogen oxides

US8865120B2 · kind B2 · utility

Assignee

• UMICORE AG & CO. KG · DE

Inventors

• Fei Wen · Kahl am Main, DE
• Barry W. L. Southward · Catoosa, US
• Liesbet Jongen · Wächtersbach, DE
• Alexander Hofmann · Hanau, DE
• Daniel Herein · Frankfurt, DE

Key dates

• Filing date: Dec 8, 2011
• Grant date: Oct 21, 2014
• Expiry date: Dec 8, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2258/012
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention is directed to a process for the production of ion-exchanged (metal-doped, metal-exchanged) Zeolites and Zeotypes, In particular, the method applied uses a sublimation step to incorporate the ion within the channels of the Zeolitic material. Hence, according to this dry procedure no solvent is involved which obviates certain drawbacks connected with wet exchange processes known in the art.