EE01613U1 - A method for synthesizing precpitated calcium carbonate - Google Patents
A method for synthesizing precpitated calcium carbonateInfo
- Publication number
- EE01613U1 EE01613U1 EEU202200024U EEU202200024U EE01613U1 EE 01613 U1 EE01613 U1 EE 01613U1 EE U202200024 U EEU202200024 U EE U202200024U EE U202200024 U EEU202200024 U EE U202200024U EE 01613 U1 EE01613 U1 EE 01613U1
- Authority
- EE
- Estonia
- Prior art keywords
- calcium
- calcium carbonate
- carbon dioxide
- aqueous solution
- stage
- Prior art date
Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 3
- 230000002194 synthesizing effect Effects 0.000 title abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 5
- 229910052791 calcium Inorganic materials 0.000 abstract 5
- 239000011575 calcium Substances 0.000 abstract 5
- 239000007864 aqueous solution Substances 0.000 abstract 3
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 3
- 239000001569 carbon dioxide Substances 0.000 abstract 3
- 238000000605 extraction Methods 0.000 abstract 3
- 239000007787 solid Substances 0.000 abstract 3
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract 1
- 229910001424 calcium ion Inorganic materials 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Present invention relates to a method for synthesizing precipitated calcium carbonate. The method comprises of two calcium extraction stages; whereby in stage 1) water or an ammonium based aqueous solution is utilised to dissolve calcium ions from the free and reactive calcium phases, followed by removal of solids from the calcium rich aqueous solution, prioi to introduction of carbon dioxide gas into the said solution to precipitate calcium carbonate. The solid residue is then subjected to a second calcium extraction stage; whereby in stage 2) carbonic acid, produced by increased carbon dioxide partial pressure in a water containing reactor, is used as the extraction solvent; followed by the removal of solids from the calcium rich aqueous solution, after which the precipitation of calcium carbonate is induced by decreasing the carbon dioxide partial pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EEU202200024U EE01613U1 (en) | 2020-06-01 | 2020-06-01 | A method for synthesizing precpitated calcium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EEU202200024U EE01613U1 (en) | 2020-06-01 | 2020-06-01 | A method for synthesizing precpitated calcium carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EE01613U1 true EE01613U1 (en) | 2023-10-16 |
Family
ID=88289556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EEU202200024U EE01613U1 (en) | 2020-06-01 | 2020-06-01 | A method for synthesizing precpitated calcium carbonate |
Country Status (1)
| Country | Link |
|---|---|
| EE (1) | EE01613U1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09168775A (en) * | 1995-12-19 | 1997-06-30 | Yasuo Arai | Method for treating concrete waste material to reutilize the same as resources |
| JP2005097072A (en) * | 2003-08-18 | 2005-04-14 | Research Institute Of Innovative Technology For The Earth | Method for fixing carbon dioxide |
| WO2007071633A1 (en) * | 2005-12-20 | 2007-06-28 | Shell Internationale Research Maatschappij B.V. | Process for sequestration of carbon dioxide |
| JP2011084467A (en) * | 2010-12-03 | 2011-04-28 | Yukio Yanagisawa | Method for producing high purity calcium carbonate from calcium-containing waste |
| WO2015168159A1 (en) * | 2014-04-28 | 2015-11-05 | Lixivia, Inc. | Methods for producing alkaline earth carbonates |
-
2020
- 2020-06-01 EE EEU202200024U patent/EE01613U1/en active Protection Beyond IP Right Term
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09168775A (en) * | 1995-12-19 | 1997-06-30 | Yasuo Arai | Method for treating concrete waste material to reutilize the same as resources |
| JP2005097072A (en) * | 2003-08-18 | 2005-04-14 | Research Institute Of Innovative Technology For The Earth | Method for fixing carbon dioxide |
| WO2007071633A1 (en) * | 2005-12-20 | 2007-06-28 | Shell Internationale Research Maatschappij B.V. | Process for sequestration of carbon dioxide |
| JP2011084467A (en) * | 2010-12-03 | 2011-04-28 | Yukio Yanagisawa | Method for producing high purity calcium carbonate from calcium-containing waste |
| WO2015168159A1 (en) * | 2014-04-28 | 2015-11-05 | Lixivia, Inc. | Methods for producing alkaline earth carbonates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXFP | Utility model extended to 8 or 10 years after payment of fee |
Expiry date: 20280601 |