Method for producing zeolite
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsIwao Ueno, Naoki Kosugi
Life of this patent
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Abstract
There is provided a method for producing a zeolite more excellent in moisture absorption characteristics. The method includes physically pulverizing a zeolite that has a gradient of a Na/Si value from a surface of the zeolite in a depth direction, that has a proportion of the Na/Si value at a depth of 10 nm from the surface to the Na/Si value at the surface of 90% or more, and that has a proportion of the Na/Si value at a depth of 30 nm from the surface to the Na/Si value at the surface of 70% or more, the Na/Si value representing a composition ratio between Na and Si, and crystallizing the physically pulverized zeolite.
Claims4
A method for producing a zeolite, the method comprising:
- physically pulverizing a Na zeolite that has a gradient of a Na/Si value from a surface of the Na zeolite in a depth direction, that has a proportion of the Na/Si value at a depth of 10 nm from the surface to the Na/Si value at the surface of 90% or more, and that has a proportion of the Na/Si value at a depth of 30 nm from the surface to the Na/Si value at the surface of 70% or more, the Na/Si value representing a composition ratio between Na and Si;
- and
- performing crystallization of the Na zeolite that was physically pulverized.
Dependencies are inferred from the claim text.