EE01614U1 - A multistage method for producing precipitated calcium carbonate and silica concentrate from calcium and silica containing waste and by-products - Google Patents
A multistage method for producing precipitated calcium carbonate and silica concentrate from calcium and silica containing waste and by-productsInfo
- Publication number
- EE01614U1 EE01614U1 EEU202200023U EEU202200023U EE01614U1 EE 01614 U1 EE01614 U1 EE 01614U1 EE U202200023 U EEU202200023 U EE U202200023U EE U202200023 U EEU202200023 U EE U202200023U EE 01614 U1 EE01614 U1 EE 01614U1
- Authority
- EE
- Estonia
- Prior art keywords
- solution
- calcium
- calcium carbonate
- silica
- precipitate
- Prior art date
Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title abstract 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title abstract 5
- 229910052791 calcium Inorganic materials 0.000 title abstract 5
- 239000011575 calcium Substances 0.000 title abstract 5
- 239000000377 silicon dioxide Substances 0.000 title abstract 5
- 239000006227 byproduct Substances 0.000 title abstract 2
- 239000002699 waste material Substances 0.000 title abstract 2
- 239000012141 concentrate Substances 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 title 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 5
- 239000000463 material Substances 0.000 abstract 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 4
- 239000002244 precipitate Substances 0.000 abstract 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 2
- 239000001569 carbon dioxide Substances 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Silicon Compounds (AREA)
Abstract
The present invention relates to multi-stage method for preparing high purity calcium carbonate precipitate from wastes and by-products containing high concentrations of calcium and silica. The calcium and silica rich material is introduced into a stirred reactor containing the extraction solution. The calcium rich solution, produced in the reactor, is separated from residual material and a gas containing carbon dioxide is passed into the said solution to precipitate calcium carbonate. The calcium carbonate precipitate is then separated from the solution. The recovered solution and residual material from the previous extraction stage is stirred in a reactor to further extract calcium from the residual material. After separating the solids from solution, carbon dioxide containing gas is introduced into the solution to again precipitate calcium carbonate. Calcium carbonate precipitate is then separated from the solution. The residual material produced from the process is characterized by high silica content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EEU202200023U EE01614U1 (en) | 2020-06-01 | 2020-06-01 | A multistage method for producing precipitated calcium carbonate and silica concentrate from calcium and silica containing waste and by-products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EEU202200023U EE01614U1 (en) | 2020-06-01 | 2020-06-01 | A multistage method for producing precipitated calcium carbonate and silica concentrate from calcium and silica containing waste and by-products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EE01614U1 true EE01614U1 (en) | 2023-10-16 |
Family
ID=88289557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EEU202200023U EE01614U1 (en) | 2020-06-01 | 2020-06-01 | A multistage method for producing precipitated calcium carbonate and silica concentrate from calcium and silica containing waste and by-products |
Country Status (1)
| Country | Link |
|---|---|
| EE (1) | EE01614U1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130078168A1 (en) * | 2011-09-28 | 2013-03-28 | Kia Motors Corporation | System and method for carbon dioxide solidification |
| WO2015168159A1 (en) * | 2014-04-28 | 2015-11-05 | Lixivia, Inc. | Methods for producing alkaline earth carbonates |
| EP2294233B1 (en) * | 2008-05-30 | 2017-08-09 | Aalto University Foundation | Method of producing calcium carbonate from waste and byproducts |
-
2020
- 2020-06-01 EE EEU202200023U patent/EE01614U1/en active Protection Beyond IP Right Term
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2294233B1 (en) * | 2008-05-30 | 2017-08-09 | Aalto University Foundation | Method of producing calcium carbonate from waste and byproducts |
| US20130078168A1 (en) * | 2011-09-28 | 2013-03-28 | Kia Motors Corporation | System and method for carbon dioxide solidification |
| 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 |