Systems, compositions, and methods for fluid purification
US-9216390-B2 · Dec 22, 2015 · US
Zeolite membrane and separation membrane
US2019366276A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019366276-A1 |
| Application number | US-201816479036-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 16, 2018 |
| Priority date | Jan 18, 2017 |
| Publication date | Dec 5, 2019 |
| Grant date | — |
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Abstract
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There is provided a zeolite membrane which is an MFI-type zeolite membrane formed on an inorganic oxide porous substrate, in which, in a diffraction pattern obtained by X-ray diffraction measurement using a CuKα ray as an X-ray source, when an intensity of a diffraction peak appearing at diffraction angles of 7.3° to 8.4° at which a crystal lattice plane belongs to 011 and/or 101 planes is used as a reference, an intensity of a diffraction peak appearing at diffraction angles of 8.4° to 9.0° at which a crystal lattice plane belongs to 200 and/or 020 planes is preferably 0.3 or more.
First claim
Opening claim text (preview).
1 . A zeolite membrane which is an MFI-type zeolite membrane formed on an inorganic oxide porous substrate, wherein in a diffraction pattern obtained by X-ray diffraction measurement using a CuKα ray as an X-ray source, when an intensity of a diffraction peak appearing at diffraction angles of 7.3° to 8.4° at which a crystal lattice plane belongs to 011 and/or 101 planes is used as a reference, an intensity of a diffraction peak appearing at diffraction angles of 8.4° to 9.0° at which a crystal lattice plane belongs to 200 and/or 020 planes is preferably 0.3 or more. 2 . The zeolite membrane according to claim 1 , wherein in the diffraction pattern, when the intensity of the diffraction peak appearing at diffraction angles of 7.3° to 8.4° at which the crystal lattice plane belongs to 011 and/or 101 planes is used as a reference, an intensity of a diffraction peak appearing at diffraction angles of 8.4° to 9.0° at which a crystal lattice plane belongs to 200 and/or 020 planes is 0.4 or more. 3 . The zeolite membrane according to claim 1 , wherein in the diffraction pattern, when the intensity of the diffraction peak appearing at diffraction angles of 7.3° to 8.4° at which the crystal lattice plane belongs to 011 and/or 101 planes is used as a reference, an intensity of a diffraction peak appearing at diffraction angles of 22.7° to 23.5° at which a crystal lattice plane belongs to 501 and/or 051 planes is 0.5 or more. 4 . The zeolite membrane according to claim 3 , wherein in the diffraction pattern, when the intensity of the diffraction peak appearing at diffraction angles of 7.3° to 8.4° at which the crystal lattice plane belongs to 011 and/or 101 planes is used as a reference, an intensity of a diffraction peak appearing at diffraction angles of 22.7° to 23.5° at which a crystal lattice plane belongs to 501 and/or 051 planes is 0.6 or more. 5 . The zeolite membrane according to claim 1 , wherein in the diffraction pattern, when the intensity of the diffraction peak appearing at diffraction angles of 7.3° to 8.4° at which the crystal lattice plane belongs to 011 and/or 101 planes is used as a reference, an intensity of a diffraction peak appearing at diffraction angles of 12.9° to 13.5° at which a crystal lattice plane belongs to 002 plane is 0.25 or less. 6 . The zeolite membrane according to claim 1 , wherein in the diffraction pattern, when the intensity of the diffraction peak appearing at diffraction angles of 7.3° to 8.4° at which the crystal lattice plane belongs to 011 and/or 101 planes is used as a reference, an intensity of a diffraction peak appearing at diffraction angles of 26.8° to 27.2° at which a crystal lattice plane belongs to 104 plane is 0.2 or less. 7 . A separation membrane comprising: the zeolite membrane according to claim 1 , on an inorganic oxide porous substrate formed of an amorphous body including 90% by mass or more of SiO 2 . 8 . The separation membrane according to claim 7 , wherein the inorganic oxide porous substrate is formed of an amorphous body including 99% by mass or more of SiO 2 .
Assignees
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Classifications
by controlled crystallisation, e,.g. hydrothermal growth · CPC title
characterised by their properties · CPC title
by d-values or two theta-values, e.g. as X-ray diagram · CPC title
obtained by SEM · CPC title
Type ZSM-5 · CPC title
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- What does patent US2019366276A1 cover?
- There is provided a zeolite membrane which is an MFI-type zeolite membrane formed on an inorganic oxide porous substrate, in which, in a diffraction pattern obtained by X-ray diffraction measurement using a CuKα ray as an X-ray source, when an intensity of a diffraction peak appearing at diffraction angles of 7.3° to 8.4° at which a crystal lattice plane belongs to 011 and/or 101 planes is used…
- Who is the assignee on this patent?
- Sumitomo Electric Industries, Univ Gifu
- What technology area does this patent fall under?
- Primary CPC classification B01D71/028. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Dec 05 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).