Method for preparing zeolite catalyst

A zeolite catalyst and zeolite technology are applied in catalyst activation/preparation, preparation of organic compounds, preparation of lactams, etc., and can solve problems such as expensive, inability to separate catalysts and the like
CN1150061CInactive Publication Date: 2004-05-19ENICHEM SPA +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ENICHEM SPA
Publication Date
2004-05-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a process for the preparation of zeolitic catalysts comprising zeolite and oligomeric silica, which can be used in industrial reactors. The process consists in directly mixing the suspension, resulting from the synthesis of the zeolite, with an oligomeric silica sol, obtained from the hydrolysis of a tetra-alkyl ortho silicate in the presence of tetraalkylammonium hydroxide, and in subjecting the mixture to rapid drying, by feeding to a spray-dry.
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Description

field of invention

[0001] The present invention relates to a process for the preparation of zeolite catalysts comprising zeolite and oligomeric silica for use in process reactors.

[0002] More specifically, the present invention relates to a process for the preparation of zeolite catalysts characterized by their original morphology, comprising directly mixing the suspension formed during the synthesis of the zeolite with an oligomeric silica sol and rapidly drying the mixture.

[0003] The invention also relates to materials prepared as described above and methods of using them as catalysts. Background technique

[0004] It is known in the prior art to use zeolites and zeolitic materials as basic components for the preparation of catalysts which can be used in many reactions in industry.

[0005] For example, it is known in the prior art that MFI-type zeolite with low trivalent heteroelement content is an essential component for the preparation of catalysts that can be use...

Claims

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