Fluid separation membrane, fluid separation membrane module, and porous carbon fiber
US-2019022599-A1 · Jan 24, 2019 · US
Separation membrane
US12115504B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12115504-B2 |
| Application number | US-201917055679-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 29, 2019 |
| Priority date | Jun 5, 2018 |
| Publication date | Oct 15, 2024 |
| Grant date | Oct 15, 2024 |
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Abstract
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Stable maintenance of high separation performance of a separation membrane having a separation layer comprising a compact carbon layer is described in addition to a separation membrane having a separation layer comprising a compact carbon layer, wherein particles are attached to the compact carbon layer, recesses are present in the compact carbon layer, and the particles are at least partially stuck in the recesses.
First claim
Opening claim text (preview).
The invention claimed is: 1. A separation membrane comprising a separation layer including a dense carbon layer having a carbon component rate of 60% to 95% by weight, wherein particles adhere to a surface of the dense carbon layer, wherein the dense carbon layer has a recess, and at least part of the particles are embedded in the recess, wherein the particles are carbon particles or metal oxide particles. 2. The separation membrane according to claim 1 , wherein the particles have a particle size of 5 nm to 10 μm. 3. The separation membrane according to claim 1 , wherein an occupancy of the surface of the dense carbon layer by the particles is 0.01% or more and 90% or less. 4. The separation membrane according to claim 1 , wherein the particles are metal oxide particles. 5. The separation membrane according to claim 4 , wherein the metal oxide particles are selected from the group consisting of Al 2 O 3 , TiO 2 , Bi 2 O 3 , CeO 2 , CoO, CuO, Ho 2 O 3 , ITO, MgO, SiO 2 , SnO 2 , Y 2 O 3 , and ZnO. 6. The separation membrane according to claim 1 , having a fibrous shape. 7. The separation membrane according to claim 6 , wherein the particles have a particle size of 1/30 or less of an average diameter of the fibrous separation membrane. 8. The separation membrane according to claim 6 , having an average diameter of the fibrous separation membrane of 10 μm to 500 μm. 9. The separation membrane according to claim 1 , comprising a core layer having a porous structure, and the separation layer including the dense carbon layer formed on a surface of the core layer. 10. The separation membrane according to claim 9 , wherein the porous structure has a co-continuous porous structure. 11. The separation membrane according to claim 10 , wherein the co-continuous porous structure has a structural period of 10 nm to 10 μm. 12. The separation membrane according to claim 9 , wherein the core layer is a layer containing carbon as a main component. 13. A separation membrane comprising a separation layer including a dense carbon layer, wherein particles having a particle size of 5 nm to 10 μm adhere to a surface of the dense carbon layer, where the dense carbon layer has a recess, and at least part of the particles are embedded in the recess.
Assignees
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Classifications
Graphene or derivates thereof · CPC title
Oxides · CPC title
Dense layer within the membrane · CPC title
characterised by the fibre diameter · CPC title
characterised by their properties · CPC title
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- What does patent US12115504B2 cover?
- Stable maintenance of high separation performance of a separation membrane having a separation layer comprising a compact carbon layer is described in addition to a separation membrane having a separation layer comprising a compact carbon layer, wherein particles are attached to the compact carbon layer, recesses are present in the compact carbon layer, and the particles are at least partially …
- Who is the assignee on this patent?
- Toray Industries
- What technology area does this patent fall under?
- Primary CPC classification B01D69/1214. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 15 2024 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).