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Copper and nitrogen treated sorbent and method for making same
US2024075458A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024075458-A1 |
| Application number | US-202318502190-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 6, 2023 |
| Priority date | Aug 31, 2020 |
| Publication date | Mar 7, 2024 |
| Grant date | — |
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- Title
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Abstract
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Carbonaceous material that is activated to form precursor activated carbon is further enhanced by doping with copper and nitrogen and calcining. The resultant sorbent material has excellent catalytic properties which are useful in the field of fluid purification.
First claim
Opening claim text (preview).
1 . A method of removing chlorine, chloramine, or both chlorine and chloramine from a fluid, the method comprising: providing a sorbent material comprising an activated carbon doped with copper and nitrogen, and contacting the sorbent material with the fluid. 2 . The method of claim 1 , wherein the fluid is liquid water. 3 . The method of claim 1 , wherein the water or the sorbent material has previously undergone a disinfecting step. 4 . The method of claim 1 , wherein the sorbent material is formed from a carbonaceous material that is activated to form a precursor activated carbon, and the sorbent material comprises about 2 wt. % to about 15 wt. % nitrogen as measured on a dry precursor activated carbon basis; about 0.25 wt. % to about 2 wt. % copper as measured on a dry precursor activated carbon basis; and wherein the sorbent material has a chloramine destruction number (CDN) of at least about 6. 5 . A sorbent material formed from a carbonaceous material that is activated to form a precursor activated carbon, the sorbent material comprising: about 2 wt. % to about 15 wt. % nitrogen as measured on a dry precursor activated carbon basis; about 0.25 wt. % to about 2 wt. % copper as measured on a dry precursor activated carbon basis; wherein the sorbent material has a chloramine destruction number (CDN) of at least about 6. 6 . The sorbent material of claim 5 , wherein the CDN is about 6 to about 60. 7 . The sorbent material of claim 5 , wherein the sorbent material is formed from a carbonaceous material that is formed from one or more of coal, wood, and coconut. 8 . The sorbent material of claim 7 , wherein at least part of the carbonaceous material is formed from coconut.
Assignees
Inventors
Classifications
Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton · CPC title
comprising oxides or hydroxides of metals not provided for in group B01J20/04 · CPC title
- B01J20/02Primary
comprising inorganic material · CPC title
- B01J20/324Primary
containing free carbon, e.g. activated carbon · CPC title
Calcining · CPC title
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Frequently asked questions
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- What does patent US2024075458A1 cover?
- Carbonaceous material that is activated to form precursor activated carbon is further enhanced by doping with copper and nitrogen and calcining. The resultant sorbent material has excellent catalytic properties which are useful in the field of fluid purification.
- Who is the assignee on this patent?
- Calgon Carbon Corp
- What technology area does this patent fall under?
- Primary CPC classification B01J20/02. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Mar 07 2024 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).