Method for preparing high-transition metal content molecular sieves

A transition metal and molecular sieve technology, applied in the direction of crystalline aluminosilicate zeolite, borocarbonane silicone crystalline aluminosilicate zeolite, etc., can solve the problems of uneven distribution of metal ions, uneven surface of molecular sieve, etc., and achieve strong application value , good dispersibility, enhanced selectivity and activity
CN101723404AInactive Publication Date: 2010-06-09BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2010-06-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing high-transition metal content molecular sieves. In the invention, Ni-ZSM-5, Co-ZSM-5 and Cu-ZSM-5 molecular sieves the transition metal contents of which respectively reach up to 15% are successfully designed and synthetized by taking ion association formed by the interaction of the traditional template agent and the metal complex as a template agent for synthetizing the molecular sieves and directly introducing metal ions to the skeletons of the molecular sieves by the template agent. The high-transition metal content heteroatom molecular sieve material has regular crystal structure, uniform bore diameter, bigger specific surface area and pore volume as well as good thermostability and hydrothermal stability.
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Description

1. Technical field

[0001] The invention relates to a preparation method of molecular sieves with high transition metal content, in particular to a preparation method of Ni-ZSM-5, Co-ZSM-5 and Cu-ZSM-5 molecular sieves with high transition metal content. 2. Background technology

[0002] Molecular sieve, also known as zeolite, is abundant in nature and can also be synthesized artificially. Since 1960, molecular sieves, as catalysts and catalyst supports, have been widely valued and developed greatly in all countries in the world. In particular, great achievements have been made in catalytic cracking, catalytic hydrocracking, hydroisomerization and alkylation, and gradually become the core technology of oil refining and petroleum industry.

[0003] ZSM-5 molecular sieve is a new type of high-silica zeolite molecular sieve developed by Mobil Corporation of the United States in 1972. The patent U.S. Patent 3702866 first introduced the preparation method of ZSM-5 zeolite molecul...

Claims

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