Centre National De La Recherche Scientifique

Totalenergies Onetech

Université De Caen Basse Normandie

Ecole Nationale Superieure D Ingenieurs De Caen

Julien Grand

Jean-Pierre Gilson

Nikolai Nesterenko

Delphine Minoux

Svetlana Mintova

Florent Dubray

Cindy Aquino

Svetlana Mintova Lazarova

Siddulu Naidu Talapaneni

The present disclosure relates to a novel staged-synthesis method for introduction of various metals in the structure of zeolite frameworks by isomorphous substitution. This new method is based on a hydrothermal synthesis in which the metal addition to the precursor suspensions (gel) is delayed. This so-called 'staged-synthesis method' allows to obtain nanosized silanol highly homo-geneous crystalline zeolite structures with a control of the metal location.

Isomorphous substitution of metals during the synthesis of a zeolite framework

The present disclosure relates to a novel method for introducing various metals in the structure of zeolite frameworks by isomorphous substitution. This new method is based on a hydrothermal reaction of the metal with the zeolite. This method allows obtaining zeolite with a structure and with control of the metal location.

Isomorphous substitution of metals on synthesized zeolite framework

Some embodiments are directed to a method for the preparation of defect-free nanosized synthetic zeolite materials, to the defect-free nanosized synthetic zeolite materials, to stable colloidal suspensions of the defect-free synthetic zeolite materials, and to the use of the defect-free nanosized synthetic zeolite materials and the stable colloidal suspensions in various applications.

Method for the preparation of defect-free nanosized synthetic zeolite materials

Growing community of inventors

Biéville-Beuville, France

Julien Grand