Forming method for molecular sieve

A molding method and technology of molecular sieves, which are applied in the direction of molecular sieve catalysts, chemical instruments and methods, and other chemical processes, can solve the problems of molecular sieve structure damage safety, environmental protection, etc., and achieve small structural damage, good technical effects, and small environmental impacts Effect
CN102464324AInactive Publication Date: 2012-05-23CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2012-05-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a forming method for a molecular sieve, which mainly solves the problems of damaged the molecular sieve structure, lowered the specific surface area of the molecular sieve and corroded equipment because of adding nitric acid in the traditional forming technology. In the forming method for the molecular sieve, a technical scheme that inorganic aluminum salt solution serves as additive for forming better solves the problems. The forming method for the molecular sieve can be used for the production application of catalyst and adsorbent.
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Description

technical field

[0001] The invention relates to a molding method of molecular sieves. Background technique

[0002] Artificially synthesized molecular sieves are generally in the form of powder. To achieve the purpose of industrial application, molecular sieves often need to be mixed with a binder, and then molded into shapes required by various industrial applications.

[0003] Industrial applications require molded samples to have a certain strength, and the original properties of molecular sieves, such as specific surface area and reactivity, can be retained to the maximum extent, which puts forward requirements for binders and molding methods. Alumina is a commonly used binder because of its high specific surface area, good compressive strength, and suitable acidity and alkalinity. The molding method is usually to mix molecular sieve and alumina, add nitric acid, then knead and extrude. For example, the patent of Publication No. CN101439293 introduces a preparation met...

Claims

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