GB860959A - Process for preparing precipitated products - Google Patents
Process for preparing precipitated productsInfo
- Publication number
- GB860959A GB860959A GB14248/58A GB1424858A GB860959A GB 860959 A GB860959 A GB 860959A GB 14248/58 A GB14248/58 A GB 14248/58A GB 1424858 A GB1424858 A GB 1424858A GB 860959 A GB860959 A GB 860959A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium
- carbonate
- ions
- solution
- calcium carbonate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 6
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 3
- 229910001424 calcium ion Inorganic materials 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 3
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 3
- 239000000243 solution Substances 0.000 abstract 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract 2
- 239000000920 calcium hydroxide Substances 0.000 abstract 2
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 2
- 239000001569 carbon dioxide Substances 0.000 abstract 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 abstract 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract 2
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 238000013019 agitation Methods 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000001110 calcium chloride Substances 0.000 abstract 1
- 229910001628 calcium chloride Inorganic materials 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000010008 shearing Methods 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
- C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Paper (AREA)
Abstract
Pigmentary calcium carbonate is precipitated by contacting calcium ions and carbonate ions in an aqueous solution having a pH of at least 8.5 and the resulting precipitate is subjected to the shearing action of a stator and rotor of which the minimum peripheral relative speed is 1160 feet per minute. The precipitation is preferably effective at 25 DEG to 60 DEG C. and the calcium ions may be furnished by milk of lime or calcium <PICT:0860959/III/1> chloride and the carbonate ions by carbon dioxide or sodium carbonate. Crystals produced in this temperature range are elongated in shape and calcitic in structure. If precipitation is effected at - 10 DEG to 25 DEG C., the calcium carbonate crystals are cubic in shape; at above 60 DEG C. the crystals are needle-like in shape and are aragonite in structure. A suitable apparatus is shown in Fig. 2 where a reactor formed by cylindrical side-walls 16 and a hemispherical base 14 is provided with a rotor and stator arrangement generally indicated by 24. A stationary annular disc 32 has an outer and inner peripheral ring of teeth 34 and 36, embracing the upward extending teeth 40 of a rotor member 38 which is joined to the central shaft 44 by pumping blades or vanes 42. A solution bearing calcium ions is fed through a conduit 50 and the solution of carbonate ions is fed through conduit 56 which ends in a gas sparger 60. Product calcium carbonate is withdrawn at 68. Examples refer to the production of calcium carbonate by feeding milk of lime and carbon dioxide gas and to preparation by feeding calcium chloride solution with a solution containing sodium carbonate and sodium bicarbonate. A comparative example illustrates that the reaction between calcium chloride and a sodium carbonate/bicarbonate mixture will result in a calcium carbonate gel if vigorous agitation is not applied.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US860959XA | 1957-05-16 | 1957-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB860959A true GB860959A (en) | 1961-02-15 |
Family
ID=22196231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14248/58A Expired GB860959A (en) | 1957-05-16 | 1958-05-05 | Process for preparing precipitated products |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1181189B (en) |
| FR (1) | FR1206815A (en) |
| GB (1) | GB860959A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2246445C2 (en) * | 2002-06-05 | 2005-02-20 | Пойлов Владимир Зотович | Method of producing coarse chemically precipitated calcium carbonate with plate shape of particles |
| RU2336919C2 (en) * | 2003-02-13 | 2008-10-27 | Дж. М. Хьюбер Корпорейшн | Precipitated calcium carbonate |
| CN112408450A (en) * | 2020-11-27 | 2021-02-26 | 广西华纳新材料科技有限公司 | Preparation method of cubic-like nano calcium carbonate |
| CN117682544A (en) * | 2024-02-04 | 2024-03-12 | 山东宇信纳米科技有限公司 | Preparation method and application of composite crystalline nanometer calcium carbonate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR477646A (en) * | 1914-02-13 | 1915-11-03 | James Macdonald Hyde | Process for smelting zinc ores |
| DE488246C (en) * | 1924-06-15 | 1929-12-23 | Carl Hinrichsen | Process for obtaining loose, easily filterable and washable precipitates |
| DE629433C (en) * | 1932-10-30 | 1936-05-06 | I G Farbenindustrie Akt Ges | Device for the continuous production of fine-grained fur |
| DE1000793B (en) * | 1955-02-03 | 1957-01-17 | Bayer Ag | Process for the production of readily dispersible silica fillers |
-
1958
- 1958-05-05 GB GB14248/58A patent/GB860959A/en not_active Expired
- 1958-05-16 FR FR1206815D patent/FR1206815A/en not_active Expired
- 1958-05-16 DE DEW23344A patent/DE1181189B/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2246445C2 (en) * | 2002-06-05 | 2005-02-20 | Пойлов Владимир Зотович | Method of producing coarse chemically precipitated calcium carbonate with plate shape of particles |
| RU2336919C2 (en) * | 2003-02-13 | 2008-10-27 | Дж. М. Хьюбер Корпорейшн | Precipitated calcium carbonate |
| CN112408450A (en) * | 2020-11-27 | 2021-02-26 | 广西华纳新材料科技有限公司 | Preparation method of cubic-like nano calcium carbonate |
| CN117682544A (en) * | 2024-02-04 | 2024-03-12 | 山东宇信纳米科技有限公司 | Preparation method and application of composite crystalline nanometer calcium carbonate |
| CN117682544B (en) * | 2024-02-04 | 2024-05-24 | 山东宇信纳米科技有限公司 | Preparation method and application of composite crystal form nano calcium carbonate |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1206815A (en) | 1960-02-11 |
| DE1181189B (en) | 1964-11-12 |
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