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US-2024261760-A1 · Aug 8, 2024 · US
Calcium alginate adsorbents
US10751692B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10751692-B2 |
| Application number | US-201516062445-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 16, 2015 |
| Priority date | Dec 16, 2015 |
| Publication date | Aug 25, 2020 |
| Grant date | Aug 25, 2020 |
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Abstract
Official abstract text for this publication.
A method of treating a liquid for removal of organic acid anions which comprises contacting a liquid containing organic acid anions with an adsorbent comprising calcium alginate-kaolinite or calcium alginate-quartz and a method of treating a liquid for removal of organic acid anions, heavy metal ions and thermally degraded organic products which comprises contacting a liquid containing organic acid anions, heavy metal ions and thermally degraded organic products with an adsorbent comprising calcium alginate-activated carbon are described.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of treating a liquid for removal of organic acid anions which comprises contacting a liquid containing organic acid anions with an adsorbent comprising calcium alginate-kaolinite (CAK) or calcium alginate-quartz (CAQ). 2. The method of claim 1 wherein the adsorbent is prepared by a process comprising adding drop-wise a mixed solution of alginate and kaolinite or quartz to a calcium chloride solution, thereby cross linking alginate with calcium ions and to obtain polymeric hybrid gel beads of CAK or CAQ as adsorbent. 3. The method of claim 1 which comprises passing of said liquid containing organic acid anions through a column containing said adsorbent in gel form. 4. A method of treating a liquid for removal of organic acid anions, heavy metal ions and thermally degraded organic products which comprises contacting a liquid containing organic acid anions, heavy metal ions and thermally degraded organic products with an adsorbent comprising calcium alginate-activated carbon (CAC). 5. The method of claim 4 wherein the adsorbent is prepared by a process comprising adding drop-wise a mixed solution of alginate and activated carbon powder to calcium chloride solution to form a carbon impregnated CAC adsorbent. 6. The method of claim 4 which comprises passing of said liquid containing organic acid anions, heavy metal ions and thermally degraded organic products through a column containing said adsorbent in gel form. 7. The method of claim 1 wherein said absorbent comprises an alginate solution prepared using is-sodium alginate salt. 8. The method of claim 1 wherein said liquid is methyldiethanolamine.
Assignees
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Classifications
Adsorption chromatography · CPC title
in the liquid phase · CPC title
Selective adsorption, e.g. chromatography · CPC title
comprising silica · CPC title
Cross-linked polymers · CPC title
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- What does patent US10751692B2 cover?
- A method of treating a liquid for removal of organic acid anions which comprises contacting a liquid containing organic acid anions with an adsorbent comprising calcium alginate-kaolinite or calcium alginate-quartz and a method of treating a liquid for removal of organic acid anions, heavy metal ions and thermally degraded organic products which comprises contacting a liquid containing organic …
- Who is the assignee on this patent?
- Univ Khalifa Science & Technology
- What technology area does this patent fall under?
- Primary CPC classification B01J20/24. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 25 2020 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).