CN100371249C - Process for preparing superfine light calcium carbonate - Google Patents
Process for preparing superfine light calcium carbonate Download PDFInfo
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- CN100371249C CN100371249C CNB2006100283608A CN200610028360A CN100371249C CN 100371249 C CN100371249 C CN 100371249C CN B2006100283608 A CNB2006100283608 A CN B2006100283608A CN 200610028360 A CN200610028360 A CN 200610028360A CN 100371249 C CN100371249 C CN 100371249C
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- Prior art keywords
- slurry
- calcium carbonate
- carbonization
- calcium hydroxide
- sodium
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 50
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000002002 slurry Substances 0.000 claims abstract description 33
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 22
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 22
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 22
- 238000003763 carbonization Methods 0.000 claims abstract description 22
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 6
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 5
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 5
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 4
- 235000019830 sodium polyphosphate Nutrition 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims description 17
- -1 phosphate ester salt Chemical class 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 8
- 239000010452 phosphate Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 235000011089 carbon dioxide Nutrition 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 150000003014 phosphoric acid esters Chemical class 0.000 claims description 3
- 229960004418 trolamine Drugs 0.000 claims description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 2
- 150000003863 ammonium salts Chemical group 0.000 claims description 2
- 150000002430 hydrocarbons Chemical group 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 2
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 10
- 239000000049 pigment Substances 0.000 abstract description 3
- 238000003801 milling Methods 0.000 abstract 3
- 239000002270 dispersing agent Substances 0.000 abstract 2
- 150000002148 esters Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 abstract 1
- 229940048086 sodium pyrophosphate Drugs 0.000 abstract 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 abstract 1
- 235000010216 calcium carbonate Nutrition 0.000 description 20
- 239000002245 particle Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 9
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 6
- 239000005995 Aluminium silicate Substances 0.000 description 4
- 235000012211 aluminium silicate Nutrition 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Paper (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The present invention discloses a method for preparing superfine light calcium carbonate, which comprises the following steps of adding dispersants to the water slurry of calcium hydroxide, then conveying the slurry into milling equipment to be milled, and simultaneously leading in carbon dioxide from the bottom of the milling equipment to carbonize the slurry, thereby simultaneously carrying out the milling and the carbonization. The dispersants are selected from one or more than two of phosphatic ester, sodium polyacrylate, triethanolamine, sodium pyrophosphate and sodium polyphosphate or sodium hexametaphosphate. The average grain diameter of the obtained superfine calcium carbonate is from 0.2 to 2.0 mum, wherein the grains whose grain diameter is smaller than 2 mum account for 60 to 100% of the total grains. The prepared superfine light calcium carbonate is used as filling materials for paper making, or coating pigment for paper making.
Description
Technical field
The present invention relates to a kind of preparation method of super-fine lightweight calcium.
Background technology
Light calcium carbonate is a kind of important Inorganic Chemicals, and generally about 400 orders, grain diameter is big for the light calcium carbonate powder fineness of producing with common carborization, and coacervation is serious between the particle, has influenced the application of light calcium carbonate.
The CN03115660.6 patent disclosure a kind of preparation method of super-fine lightweight calcium, this patent adopts conventional dispersion agent, adopt 400 order left and right sides light calcium carbonates to prepare superfine light calcium carbonate with abrasive method, therefore, the disclosed technology of this patent, exist an obvious defects, the superfine light calcium carbonate that it makes, and size range is wide, skewness, the slurry viscosity height of making, poor stability.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of preparation method of super-fine lightweight calcium, to overcome the above-mentioned defective that prior art exists.
Method of the present invention comprises the steps:
In being 5～25% calcium hydroxide water slurry, weight concentration adds dispersion agent, then slurry being sent into grinding plant grinds, feed carbon dioxide or carbonic acid gas volumetric concentration simultaneously from grinding plant bottom and be 10～35% mixed gas and carry out carbonization, make and grind and carbonization is carried out simultaneously;
Carbonization temperature is 10～70 ℃, and carbonization is 6.5～7.5 to the pH of calcium hydroxide slurry, i.e. acquisition contains the slurry of superfine light calcium carbonate;
Described dispersion agent is selected from one or more in phosphate ester salt, sodium polyacrylate, trolamine, trisodium phosphate, sodium polyphosphate or the Sodium hexametaphosphate 99, and the adding weight of dispersion agent is 0.1～5% of calcium carbonate superfine powder dry weight.
Described phosphate ester salt is ammonium salt, sodium salt or the sylvite of phosphoric acid ester;
The hydrophobic grouping of phosphate ester salt is the hydrocarbon structure that contains 6～18 carbon atoms;
Described grinding plant can be sand mill or stir mill, the grinding plant use of can connecting more than or two.
The median size of the calcium carbonate superfine powder that obtains is 0.2-2.0 μ m, and wherein grain diameter accounts for the 60--100% of total particle number less than the particle of 2 μ m.
The prepared superfine light calcium carbonate of the present invention is used for papermaking filler or paper making and cloth coating pigment.Be mainly used in the coating pigment of art paper, coated manila, ivory board, to replace expensive import kaolin and calcined kaolin, paper of whiteness height, the ink absorption produced are good, and production cost is low.Outstanding advantage of the present invention is: calcium carbonate superfine powder median size 0.2--0.8 μ m, and little, the narrow particle size distribution of particle diameter, the crystalline form rule can improve glossiness, ink absorption of paper etc.
The prepared ultra-fine light calcium carbonate slurry of the present invention is directly used in coating and need not dries, and has not only saved cost, has also avoided the group wadding problem of ultra-fine grain in drying process.
In sum, the superfine light calcium carbonate fine size that the method according to this invention is produced, it is low to make slurry viscosity, is used for the quality of paper coating can raising paper, reduces production costs.
Embodiment
Embodiment 1
In weight concentration is 20% calcium hydroxide (median size is 10 μ m) water slurry, be incorporated as 1% the phosphoric acid ester ammonium salt that contains 12 carbon atoms of ultra-fine calcium hydroxide dry weight, be incorporated as 0.3% sodium polyacrylate of calcium hydroxide dry weight simultaneously, calcium hydroxide slurry is pumped into 5 placed in-line vertical grinding machines of 80 liters with pneumatic diaphragm, and feed rate is 8 liters/minute.From every logical pure carbon dioxide gas in sand mill bottom, the flow of carbonic acid gas is 50 liters/minute, opens sand mill, and grinding and carbonization are carried out simultaneously simultaneously.The slurry carbonization that goes out the 5th sand mill is good, and the pH of slurry is 6.7, and carbonization temperature is 45 ℃, and the median size of the calcium carbonate superfine powder that obtains is 0.4 μ m, and wherein the particle less than 2 μ m accounts for 99% of total particle number.
Embodiment 2
In weight concentration is 5% calcium hydroxide (median size is 5 μ m) water slurry, be incorporated as 0.8% sodium polyacrylate of calcium hydroxide dry weight, calcium hydroxide slurry is pumped into two placed in-line 300 liters of vertical grinding machines with pneumatic diaphragm, and feed rate is 15 liters/minute.From every logical pure carbon dioxide gas in sand mill bottom, the flow of carbonic acid gas is 90 liters/minute, opens sand mill, and grinding and carbonization are carried out simultaneously simultaneously.The slurry carbonization that goes out second sand mill is good, and the pH of slurry is 7.0, and carbonization temperature is 70 ℃, and the median size of the calcium carbonate superfine powder that obtains is 0.5 μ m, and wherein the particle less than 2 μ m accounts for 98% of total particle number.
Embodiment 3
In weight concentration is 25% ordinary hydrogen calcium oxide (median size is 5 μ m) water slurry, be incorporated as 2% the phosphate kalium salt that contains 14 carbon atoms of calcium hydroxide dry weight, calcium hydroxide slurry sent in one 3 cubic metres the stirring mill, from stirring the mixed gas gas of the logical carbonated volumetric concentration 25% in mill bottom, open and stir mill, with 80 rev/mins of agitation grinding carbonizations 8 hours, the pH of water slurry was 6.7, carbonization temperature is 30 ℃, and the mixed gas gas flow is 300 liters/minute.The median size of the calcium carbonate superfine powder that obtains is 0.5 μ m, and wherein the particle less than 2 μ m accounts for 93% of total particle number.
Embodiment 4
In weight concentration is 14% ordinary hydrogen calcium oxide (median size is 5 μ m) water slurry, be incorporated as 1.5% the phosphate kalium salt that contains 10 carbon atoms of calcium hydroxide dry weight, be incorporated as 0.5% trolamine of calcium hydroxide dry weight simultaneously, calcium hydroxide slurry sent in one 3 cubic metres the stirring mill, from stirring the logical carbonated volumetric concentration in mill bottom is 22% mixed gas gas, open and stir mill, with 80 rev/mins of agitation grinding carbonizations 6 hours, the pH of water slurry is 6.5, carbonization temperature is 60 ℃, and the mixed gas gas flow is 400 liters/minute.The median size of the calcium carbonate superfine powder that obtains is 0.3 μ m, and wherein the particle less than 2 μ m accounts for 97% of total particle number.
Embodiment 5
In weight concentration is 15% ordinary hydrogen calcium oxide (median size is 5 μ m) water slurry, be incorporated as 0.5% the phosphoric acid ester sodium that contains 12 carbon atoms of calcium hydroxide dry weight, be incorporated as 0.2% Sodium hexametaphosphate 99 of calcium hydroxide dry weight simultaneously, calcium hydroxide slurry is pumped into two placed in-line vertical grinding machines of 300 liters with pneumatic diaphragm, and feed rate is 18 liters/hour.From the logical pure carbon dioxide gas in vertical grinding machine bottom, the flow of carbonic acid gas is 80 liters/minute, opens sand mill simultaneously, and grinding and carbonization are carried out simultaneously.The slurry carbonization that goes out second sand mill is good, and the pH of water slurry is 6.8, and carbonization temperature is 20 ℃, and the median size of the calcium carbonate superfine powder that obtains is 0.7 μ m, and wherein the particle less than 2 μ m accounts for 93% of total particle number.
Embodiment 6
Be coated with in the prescription at 18# machine chromo board face, use the U.S.'s china clay and the calcined kaolin of the foregoing description superfine light calcium carbonate sample instead of part, performance variation situations such as the physical index of investigation coating pattern and printability.Face is coated with experiment and adopts band ivory board midway, uses linear spreading rod to carry out face and is coated with glue spread 10g/m
2Compare with the coating pattern of original formulation.Coating rolling condition: get above-mentioned coating pattern respectively with twice of the hard press polish of small-sized rolling press (0.3Mpa, 90 ℃).
Table 1 face is coated with face and is coated with prescription
Table 2 coating pattern detects data
From the result, similarity condition is compared with original formulation down, and the foregoing description superfine light calcium carbonate partly replaces U.S.'s china clay and calcined kaolin, pattern level and smooth, to be coated with glossiness, surface strength, ink absorption and other difference little.
Claims (5)
1. preparation method of super-fine lightweight calcium, it is characterized in that, comprise the steps: in the calcium hydroxide water slurry, to add dispersion agent, then slurry being sent into grinding plant grinds, feed carbon dioxide or carbonic acid gas volumetric concentration simultaneously from grinding plant bottom and be 10～35% mixed gas and carry out carbonization, make and grind and carbonization is carried out simultaneously;
Carbonization temperature is 10～70 ℃, and carbonization is 6.5～7.5 to the pH of calcium hydroxide slurry, i.e. acquisition contains the slurry of superfine light calcium carbonate;
Described dispersion agent is selected from one or more the mixture in phosphate ester salt and sodium polyacrylate, trolamine, trisodium phosphate, sodium polyphosphate or the Sodium hexametaphosphate 99;
Described phosphate ester salt is ammonium salt, sodium salt or the sylvite of phosphoric acid ester.
2. method according to claim 1 is characterized in that, calcium hydroxide water slurry weight concentration is 5～25%.
3. method according to claim 1 is characterized in that, the adding weight of dispersion agent is 0.1～5% of ultra-fine calcium hydroxide dry weight.
4. method according to claim 1 is characterized in that, the hydrophobic grouping of phosphate ester salt is the hydrocarbon structure that contains 6～18 carbon atoms.
5. method according to claim 1 is characterized in that, described grinding plant is sand mill or stirs mill, the grinding plant use of can connecting more than or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100283608A CN100371249C (en) | 2006-06-29 | 2006-06-29 | Process for preparing superfine light calcium carbonate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100283608A CN100371249C (en) | 2006-06-29 | 2006-06-29 | Process for preparing superfine light calcium carbonate |
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| Publication Number | Publication Date |
|---|---|
| CN1884085A CN1884085A (en) | 2006-12-27 |
| CN100371249C true CN100371249C (en) | 2008-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100283608A Active CN100371249C (en) | 2006-06-29 | 2006-06-29 | Process for preparing superfine light calcium carbonate |
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| CN (1) | CN100371249C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500331A (en) * | 2017-09-29 | 2017-12-22 | 广西华洋矿源材料有限公司 | A kind of preparation method of precipitated calcium carbonate |
| US9902652B2 (en) | 2014-04-23 | 2018-02-27 | Calera Corporation | Methods and systems for utilizing carbide lime or slag |
| US11377363B2 (en) | 2020-06-30 | 2022-07-05 | Arelac, Inc. | Methods and systems for forming vaterite from calcined limestone using electric kiln |
| US11577965B2 (en) | 2020-02-25 | 2023-02-14 | Arelac, Inc. | Methods and systems for treatment of lime to form vaterite |
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| CN101229926B (en) * | 2007-10-11 | 2010-04-07 | 河北科技大学 | Preparation method of styliform nano calcium carbonate |
| CN102912672B (en) * | 2011-08-01 | 2016-05-11 | 池州学院 | The preparation method of high solids content fluid calcium carbonate for a kind of high-grade page |
| CN103061202B (en) * | 2012-07-18 | 2015-08-19 | 建德市宏兴钙业有限责任公司 | A kind of activated Calcium carbonate for papermaking filler and preparation method thereof |
| CN103011227A (en) * | 2012-12-28 | 2013-04-03 | 上海东升新材料有限公司 | Preparation method of ultrafine coating light calcium carbonate |
| CN103011228A (en) * | 2012-12-28 | 2013-04-03 | 上海东升新材料有限公司 | Preparation method of ultrafine coating light calcium carbonate |
| CN103387254B (en) * | 2013-07-19 | 2015-08-19 | 合肥工业大学 | A kind of phase transition-carborization prepares the method for light calcium carbonate |
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| CN103740137A (en) * | 2013-12-31 | 2014-04-23 | 上海东升新材料有限公司 | Preparation method of heavy calcium carbonate with narrow particle size |
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| CN106892446A (en) * | 2015-12-21 | 2017-06-27 | 上海东升新材料有限公司 | A kind of preparation method of the ultra-fine coating fine particle calcium carbonate slurry of narrow particle diameter |
| CN106928753B (en) * | 2016-11-07 | 2018-11-09 | 广西民族大学 | A kind of preparation method for PVC automobile chassis stone-impact-proof paint modified calcium carbonates |
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| CN107692236B (en) * | 2017-09-29 | 2021-03-05 | 广西华洋矿源材料有限公司 | Application of light calcium carbonate in preparation of food, health-care product or medicine |
| CN107416884A (en) * | 2017-09-30 | 2017-12-01 | 广西华洋矿源材料有限公司 | A kind of production method of high-quality superfine light calcium carbonate |
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| JPS6411941A (en) * | 1987-07-02 | 1989-01-17 | Mitsubishi Metal Corp | Wear resistant fe based cast alloy for rocker arm having high strength and high toughness |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9902652B2 (en) | 2014-04-23 | 2018-02-27 | Calera Corporation | Methods and systems for utilizing carbide lime or slag |
| CN107500331A (en) * | 2017-09-29 | 2017-12-22 | 广西华洋矿源材料有限公司 | A kind of preparation method of precipitated calcium carbonate |
| US11577965B2 (en) | 2020-02-25 | 2023-02-14 | Arelac, Inc. | Methods and systems for treatment of lime to form vaterite |
| US11377363B2 (en) | 2020-06-30 | 2022-07-05 | Arelac, Inc. | Methods and systems for forming vaterite from calcined limestone using electric kiln |
Also Published As
| Publication number | Publication date |
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| CN1884085A (en) | 2006-12-27 |
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