Sortech Ag

Friedrich-alexander-universitat Erlangen-nürnberg

Technische Universität Clausthal

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Carl Von Ossietzky Universitat Oldenburg

Fahrenheit Gmbh

Wilhelm Schwieger

Ralph Herrmann

Jürgen Bauer

Walter Mittelbach

Hannes Richter

Hans-Martin Henning

Albert Gonche Fortunatus Machoke

Ferdinand Schmidt

Abhijeet Uddhavarao Avhale

Franziska Scheffler

Nadine Kruse

Hans-Martin Hennig

Adrian Simon

Alexandra Inayat

Selvam Thangaraj

Robert Güttel

Marthala Reddy

Arne Kuhlmann

Ana Maria Beltrán Custodio

Erdmann Spiecker

Benjamin Reif

Rajesh Kumar Chandra

Marion SCHÜLEIN

Yvonne JÜTTKE

Dirk LÜDKE

Abhijeet Avhale

Frank Rößner

A particulate material and a process for the production thereof are provided, which particulate material comprises zeolitic particles having a crystalline structure, which contain as the main component a zeolite material having a zeolitic framework structure formed from Si, O and optionally Al, and/or a zeolite-like material having a zeolitic framework structure which is formed not only from Si, O and optionally Al, wherein the zeolitic particles are in the form of essentially spherical particles with nanometer dimensions.

Nanometer-size zeolitic particles and method for the production thereof

The invention relates to a zeolitic material comprising zeolitic monocrystals, each of which has a pore system encompassing at least one micropore system and at least one macropore system, and to a method for producing a zeolitic material of said type. In said method, porous oxide particles are converted into the zeolitic material in the presence of an organic template and steam.

Zeolitic materials having a distinctive single crystal macroporosity and method for the production thereof

An aluminum-containing substrate is described that comprises at least one superficially applied microporous layer of an aluminum phosphate zeolite (ALPO) as well as other layers. Said aluminum-containing substrate is characterized in that the microporous layer of the aluminum phosphate zeolite represents a primer coating on which a microporous or mesoporous secondary material is located which differs from the material of the primer coating. Said aluminum-containing substrate is produced in a particularly advantageous manner according to a method in which 1. an aluminum-containing substrate is hydrothermally treated in an aqueous suspension containing at least phosphorus as a network-forming element, and a microporous primer coating of an aluminum phosphate zeolite is formed on the substrate by means of an in situ crystallization process, especially the molar ratio between the network-forming aluminum that is deficient in the aqueous suspension and the sum of all network-forming elements in the aqueous suspension being less than 0.5 such that the aluminum required for compensating the deficiency is removed from the aluminum-containing substrate, and 2.; a microporous or mesoporous secondary material is formed on the microporous primer coating by subjecting the aluminum-containing substrate that comprises the microporous primer coating to another treatment in an aqueous suspension containing the network-forming elements required for forming the porous secondary material. The described aluminum-containing substrate is particularly suitable as a heat exchanger, as a catalytic reactor, or as a component in heat transformation technology with an anti-corrosive or anti-fouling effect.

Aluminum-containing substrate comprising a microporous layer of an aluminum phosphate zeolite, method for the production thereof, and use thereof

A method is described for forming an aluminosilicate-zeolite layer on an aluminum-containing substrate by in situ direct crystallization. Aluminum-rich aluminosilicate-zeolite coatings on aluminum-containing metal substrates obtained by this method are advantageous, for example, in sorption-based fields of application, such as heterogeneous catalysis, in separation and cleaning processes, in sorption heat pumps, in conjunction with immobilized catalysts and in microreaction technology.

Method for forming an aluminosilicate-zeolite layer on a metal substrate, the coated substrate and the use thereof

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.

Method for production of a substrate coated with a zeolite layer

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Spardorf, Germany

Wilhelm Schwieger