High performance membranes for water reclamation using polymeric and nanomaterials
US-2016038885-A1 · Feb 11, 2016 · US
High permeate flux reverse osmosis membrane including surface-treated zeolite and method of manufacturing the same
US9415351B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9415351-B2 |
| Application number | US-201314005902-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 7, 2013 |
| Priority date | Jun 8, 2012 |
| Publication date | Aug 16, 2016 |
| Grant date | Aug 16, 2016 |
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- Title
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Abstract
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The present invention relates to a reverse osmosis membrane including: a porous support; and a polyamide active layer formed on the porous support and including zeolite, surface-treated with a compound having at least one functional group selected from a group consisting of an amino group and a glycidyl group, and a method of manufacturing the same.
First claim
Opening claim text (preview).
The invention claimed is: 1. A reverse osmosis membrane comprising: a porous support; and a polyamide active layer formed on the porous support and including zeolite, surface-treated with a compound having a glycidyl group, wherein the zeolite has an MFI (Zeolite Socony Mobil-five) type structure, and wherein a difference between a maximum particle diameter and a minimum particle diameter of the surface-treated zeolite is 10 to 200 nm. 2. The reverse osmosis membrane of claim 1 , wherein the compound is a silane compound having a glycidyl functional group. 3. The reverse osmosis membrane of claim 1 , wherein an average particle diameter of the surface-treated zeolite is 50 to 200 nm. 4. A method of manufacturing a reverse osmosis membrane, the method comprising: forming a porous support; and forming a polyamide active layer on the porous support by interfacially polymerizing a polyfunctional amine solution including zeolite surface-treated with a compound having a glycidyl functional group and a polyfunctional acid halide compound solution, wherein the zeolite has an MFI (Zeolite Socony Mobil-five) type structure, and wherein a difference between a maximum particle diameter and a minimum particle diameter of the surface-treated zeolite is 10 to 200 nm. 5. The method of claim 4 , wherein the surface-treated zeolite is included in an amount of 0.001 wt % to 1 wt %, with respect to 100 wt % of the polyfunctional amine solution.
Assignees
Inventors
Classifications
Polyamides, e.g. polyester-amides · CPC title
Organic/inorganic mixed matrix membranes · CPC title
Adsorbents being present on the surface of the membranes or in the pores · CPC title
- B01D61/025Primary
Reverse osmosis; Hyperfiltration · CPC title
Type ZSM-5 · CPC title
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Frequently asked questions
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- What does patent US9415351B2 cover?
- The present invention relates to a reverse osmosis membrane including: a porous support; and a polyamide active layer formed on the porous support and including zeolite, surface-treated with a compound having at least one functional group selected from a group consisting of an amino group and a glycidyl group, and a method of manufacturing the same.
- Who is the assignee on this patent?
- Lg Chemical Ltd, Korea Univ Res & Business Found
- What technology area does this patent fall under?
- Primary CPC classification B01D61/025. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 16 2016 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).