Direct synthesis of Cu-CHA by means of combining a Cu complex and tetraethylammonium and applications in catalysis
The present invention relates to a process for the direct synthesis of a material with a CHA zeolite structure in the silicoaluminate form thereof containing copper atoms, which comprises at least the following steps: (i) Preparation of a mixture which contains at least one water source, one copper...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
09.06.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to a process for the direct synthesis of a material with a CHA zeolite structure in the silicoaluminate form thereof containing copper atoms, which comprises at least the following steps:
(i) Preparation of a mixture which contains at least one water source, one copper source, one polyamine, one source of Y tetravalent element, one source of X trivalent element, the tetraethylammonium cation as the only OSDA and one source of alkaline or alkaline earth (A) cations, and wherein the synthesis mixture has the following molar composition:
YO 2 : a X 2 O 3 : b OSDA : c A : d H 2 O : e Cu : f polyamine
(ii) Crystallization of the mixture obtained in (i) in a reactor;
(iii) Recovery of the crystalline material obtained in (ii). |
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Bibliography: | Application Number: US201615569700 |