Gas separation material using metal complex and gas separation method
US-2015329563-A1 · Nov 19, 2015 · US
Separation membrane structure
US10486111B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10486111-B2 |
| Application number | US-201715494980-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 24, 2017 |
| Priority date | Nov 25, 2014 |
| Publication date | Nov 26, 2019 |
| Grant date | Nov 26, 2019 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A separation membrane structure includes a porous support, a first separation membrane and a second separation membrane. The first separation membrane is formed on the porous support and contains high silica zeolite having Si/Al atomic ratio of greater than or equal to 200. The second separation membrane is formed on the first separation membrane and contains cation.
First claim
Opening claim text (preview).
The invention claimed is: 1. A separation membrane structure comprising: a porous support, a first separation membrane formed on the porous support and containing high silica zeolite having an Si/Al atomic ratio of greater than or equal to 200, and a second separation membrane formed on the first separation membrane and containing at least one cation, wherein the high silica zeolite contained in the first separation membrane is zeolite that has a backbone of any of DDR, MEL, BEA and CHA, wherein the second separation membrane contains low silica zeolite that has a smaller Si/Al atomic ratio than the high silica zeolite contained in the first separation membrane, and wherein composite building units of the high silica zeolite contained in the first separation membrane share at least one of composite building unit of the low silica zeolite contained in the second separation membrane. 2. The separation membrane structure according to claim 1 , wherein the cation is at least one type of cation selected from the group consisting of alkali metals, alkaline earth metals, Au, Ag, Cu, Ni, Co, Pd and Pt. 3. The separation membrane structure according to claim 1 , wherein a thickness of the second separation membrane is greater than or equal to 0.1 micrometers and less than or equal to 3.0 micrometers. 4. A separation membrane structure comprising: a porous support, a first separation membrane formed on the porous support and containing high silica zeolite having an Si/Al atomic ratio of greater than or equal to 200, and a second separation membrane formed on the first separation membrane and containing at least one cation, wherein the high silica zeolite contained in the first separation membrane is zeolite that has a backbone of any of DDR, MEL, BEA and CHA, and wherein a backbone structure of the high silica zeolite contained in the first separation membrane is the same as a backbone structure of the low silica zeolite contained in the second separation membrane. 5. The separation membrane structure according to claim 1 , wherein the second separation membrane contains low silica zeolite that has an Si/Al atomic ratio of less than or equal to 60.
Assignees
Inventors
Classifications
by slurry techniques, e.g. die or slip-casting · CPC title
Membrane materials having positively charged functional groups · CPC title
Characteristic thickness · CPC title
Silicium oxide · CPC title
characterised by their properties · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10486111B2 cover?
- A separation membrane structure includes a porous support, a first separation membrane and a second separation membrane. The first separation membrane is formed on the porous support and contains high silica zeolite having Si/Al atomic ratio of greater than or equal to 200. The second separation membrane is formed on the first separation membrane and contains cation.
- Who is the assignee on this patent?
- Ngk Insulators Ltd
- 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 Tue Nov 26 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).