Method for production of a substrate coated with a zeolite layer

US8053032B2 · kind B2 · utility

Assignee

• SORTECH AG · DE

Inventors

• Wilhelm Schwieger · Spardorf, DE
• Selvam Thangaraj · Erlangen, DE
• Franziska Scheffler · Erlangen, DE
• Ralph Herrmann · Bodenwerder, DE
• Marthala Reddy · Ludwigsburg, DE
• Walter Mittelbach · Bodenwerder, DE
• Jürgen Bauer · Pocking, DE
• Ferdinand Schmidt · Wilster, DE
• Hans-Martin Hennig · Glückstadt, DE

Key dates

• Filing date: Oct 29, 2005
• Grant date: Nov 8, 2011
• Expiry date: Nov 5, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/249978
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a method for production of a zeolite layer on a substrate containing metal, comprising the following method steps: production of an aqueous suspension, comprising several components, one component comprises at least one cross-linking element from the third, fourth or fifth main group of the periodic table, the substrate containing metal comprises at least one of the cross-linking elements, introduction of the substrate containing metal to the aqueous suspension, heating the aqueous suspension and the substrate containing the metal present therein for the in-situ crystallisation of a zeolite layer on the substrate containing metal, whereby the cross-linking elements in the substrate containing metal are extracted and included in the zeolite layer, a cross-linking element present in the suspension for formation of the zeolite layer is present at a concentration so low that a crystallisation in the suspension is largely or completely avoided and said element is principally provided by the substrate.