RO87978B1 - Procedeu de fabricare a carbonatului de calciu pur - Google Patents
Procedeu de fabricare a carbonatului de calciu purInfo
- Publication number
- RO87978B1 RO87978B1 RO111686A RO11168683A RO87978B1 RO 87978 B1 RO87978 B1 RO 87978B1 RO 111686 A RO111686 A RO 111686A RO 11168683 A RO11168683 A RO 11168683A RO 87978 B1 RO87978 B1 RO 87978B1
- Authority
- RO
- Romania
- Prior art keywords
- calcium carbonate
- pure calcium
- aragonite
- hydroxide solution
- less
- 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
- 229910000019 calcium carbonate Inorganic materials 0.000 title abstract 2
- 229910021532 Calcite Inorganic materials 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- 150000001720 carbohydrates Chemical class 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 150000004676 glycans Chemical class 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- 229920001282 polysaccharide Polymers 0.000 abstract 1
- 239000005017 polysaccharide Substances 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 150000005846 sugar alcohols Polymers 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
- C01F11/183—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds the additive being an organic compound
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/182—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Inventia se refera la un procedeu de fabricare a carbonatului de calciu pur, în forma de calcit sau aragonit, conform caruia, folosindu-se ca materie prima o solutie purificata de hidroxid de calciu si continînd 5,,,15% saruri minerale, fenoli, polialcooli, zaharide sau polizaharide, aceasta este supusa carbonatarii cu bioxid de carbon concentrat la temperatura de 75...95 degree C, obtinîndu-se ca precipitat calcit pur avînd dimensiunea particulelor sub 10 miu, iar în prezenta ionilor de Mg + 2, în concentratie de 1...2% în solutie de hidroxid de calciu, precipitata în aceleasi conditii de carbonatare aragonit pur avînd domensiunea particulelor sub 10 miu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO83111686A RO87978A2 (ro) | 1983-07-21 | 1983-07-21 | Procedeu de fabricare a carbonatului de calciu pur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO83111686A RO87978A2 (ro) | 1983-07-21 | 1983-07-21 | Procedeu de fabricare a carbonatului de calciu pur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO87978B1 true RO87978B1 (ro) | 1985-10-31 |
| RO87978A2 RO87978A2 (ro) | 1985-11-30 |
Family
ID=20113439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO83111686A RO87978A2 (ro) | 1983-07-21 | 1983-07-21 | Procedeu de fabricare a carbonatului de calciu pur |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO87978A2 (ro) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5741471A (en) * | 1995-12-05 | 1998-04-21 | Minerals Technologies Inc. | Process for the preparation of discrete particles of calcium carbonate |
| GB9827033D0 (en) * | 1998-12-10 | 1999-02-03 | Kemgas Limited | Lime treatment |
-
1983
- 1983-07-21 RO RO83111686A patent/RO87978A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO87978A2 (ro) | 1985-11-30 |
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