CN102876087A - Preparation method of calcium carbonate special for sealant - Google Patents
Preparation method of calcium carbonate special for sealant Download PDFInfo
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- CN102876087A CN102876087A CN2012103688917A CN201210368891A CN102876087A CN 102876087 A CN102876087 A CN 102876087A CN 2012103688917 A CN2012103688917 A CN 2012103688917A CN 201210368891 A CN201210368891 A CN 201210368891A CN 102876087 A CN102876087 A CN 102876087A
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- Prior art keywords
- calcium carbonate
- preparation
- slurry
- seal gum
- special use
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention relates to calcium carbonate, in particular to a preparation method of calcium carbonate. A preparation method of calcium carbonate special for sealant includes: step one, mixing 500-mesh calcite calcium carbonate with water, wherein the ratio of water to the calcium carbonate is 1:3; step two, filtering slurry and removing impurities; step three, grinding, keeping the temperature of the slurry to be 80+/-2 DEG C during grinding, and controlling particle size to satisfy equations that D50=1.00um, D97=1.8um and D98=1.90um; step four, feeding qualified ground slurry into a fluidized bed for drying; step five, crushing dried powder; step six, subjecting synthesized surfactant to surface modification; step seven, re-powdering the modified powder; and step eight, screening and packaging. The particle size of the calcium carbonate meets the requirements.
Description
Technical field
The present invention relates to calcium carbonate, relate in particular to a kind of preparation method of calcium carbonate.
Background technology
Calcium carbonate has numerous effects, relates generally to all respects of national economy, and wherein, the employed calcium carbonate of seal gum has very high requirement to granular size, and conventional production methods is ineffective to particle diameter control, causes the seal gum quality unstable.
Summary of the invention
The present invention is intended to overcome the defective of prior art, and a kind of seal gum calcium carbonate for special use preparation method is provided.Product particle size of the present invention meets the requirements.
In order to solve the problems of the technologies described above, the present invention is achieved in that a kind of seal gum calcium carbonate for special use preparation method, and it comprises
The first step adds the water mix and blend with the generous solution calcium carbonate of 500 orders raw material, and wherein water and material rate are 1:3;
Second step with slurries filtration, is removed impurity;
The 3rd step, grind, keep 80 ℃ ± 2 ℃ of slurry temperatures in the process of lapping, the control particle diameter makes D50=1.00um, D97=1.8um, D98=1.90um;
In the 4th step, will grind again slurry after qualified and throw into and carry out drying in the fluidized-bed;
In the 5th step, dried powder is pulverized;
In the 6th step, synthetic tensio-active agent is carried out surface modification;
In the 7th step, the powder that modification is good is powder again;
In the 8th step, enter the screening packing.
Described a kind of seal gum calcium carbonate for special use preparation method, the tensio-active agent in described the 6th step is that the stearic fat of animal tallow adds the agent of the compound lotus root connection of aluminium titanium.
Described a kind of seal gum calcium carbonate for special use preparation method, described dosage of surfactant is 4/1000ths of calcium carbonate consumption.
The present invention is strict control particle diameter in preparation process, helps the stable of seal gum quality.
Embodiment
Below, the present invention is further illustrated in conjunction with embodiment:
The present invention is achieved in that a kind of seal gum calcium carbonate for special use preparation method, and it comprises
The first step adds the water mix and blend with the generous solution calcium carbonate of 500 orders raw material, and wherein water and material rate are 1:3;
Second step with slurries filtration, is removed impurity;
The 3rd step, grind, keep 80 ℃ ± 2 ℃ of slurry temperatures in the process of lapping, the control particle diameter makes D50=1.00um, D97=1.8um, D98=1.90um;
In the 4th step, will grind again slurry after qualified and throw into and carry out drying in the fluidized-bed;
In the 5th step, dried powder is pulverized;
In the 6th step, synthetic tensio-active agent is carried out surface modification; Used tensio-active agent is that the stearic fat of animal tallow adds the agent of the compound lotus root connection of aluminium titanium, and consumption is 4/1000ths of calcium carbonate consumption;
In the 7th step, the powder that modification is good is powder again;
In the 8th step, enter the screening packing.
Claims (3)
1. seal gum calcium carbonate for special use preparation method is characterized in that it comprises:
The first step adds the water mix and blend with the generous solution calcium carbonate of 500 orders, and wherein water and calcium carbonate proportion are 1:3;
Second step with slurries filtration, is removed impurity;
The 3rd step, grind, keep 80 ℃ ± 2 ℃ of slurry temperatures in the process of lapping, the control particle diameter makes D50=1.00um, D97=1.8um, D98=1.90um;
In the 4th step, will grind again slurry after qualified and throw into and carry out drying in the fluidized-bed;
In the 5th step, dried powder is pulverized;
In the 6th step, synthetic tensio-active agent is carried out surface modification;
In the 7th step, the powder that modification is good is powder again;
In the 8th step, enter the screening packing.
2. a kind of seal gum calcium carbonate for special use preparation method according to claim 1 is characterized in that, the tensio-active agent in described the 6th step is that the stearic fat of animal tallow adds the agent of the compound lotus root connection of aluminium titanium.
3. a kind of seal gum calcium carbonate for special use preparation method according to claim 1 and 2 is characterized in that described dosage of surfactant is 4/1000ths of calcium carbonate consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103688917A CN102876087A (en) | 2012-09-27 | 2012-09-27 | Preparation method of calcium carbonate special for sealant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103688917A CN102876087A (en) | 2012-09-27 | 2012-09-27 | Preparation method of calcium carbonate special for sealant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102876087A true CN102876087A (en) | 2013-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103688917A Pending CN102876087A (en) | 2012-09-27 | 2012-09-27 | Preparation method of calcium carbonate special for sealant |
Country Status (1)
| Country | Link |
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| CN (1) | CN102876087A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6592837B2 (en) * | 2001-04-20 | 2003-07-15 | Carbominerals | Narrow size distribution ground calcium carbonate compositions |
| CN101456969A (en) * | 2008-12-29 | 2009-06-17 | 南京协和化学有限公司 | Functional calcium carbonate and method for producing the same |
| CN101671494A (en) * | 2009-09-19 | 2010-03-17 | 张家界恒亮新材料科技有限公司 | Surface modified calcium carbonate and preparation method thereof |
| CN101914311A (en) * | 2010-07-30 | 2010-12-15 | 浙江常山金雄有限公司 | Calcium carbonate surface modifying method |
| CN102220032A (en) * | 2011-03-29 | 2011-10-19 | 上海东升新材料有限公司 | Dry grinding method of ultrafine heavy calcium carbonate |
-
2012
- 2012-09-27 CN CN2012103688917A patent/CN102876087A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6592837B2 (en) * | 2001-04-20 | 2003-07-15 | Carbominerals | Narrow size distribution ground calcium carbonate compositions |
| CN101456969A (en) * | 2008-12-29 | 2009-06-17 | 南京协和化学有限公司 | Functional calcium carbonate and method for producing the same |
| CN101671494A (en) * | 2009-09-19 | 2010-03-17 | 张家界恒亮新材料科技有限公司 | Surface modified calcium carbonate and preparation method thereof |
| CN101914311A (en) * | 2010-07-30 | 2010-12-15 | 浙江常山金雄有限公司 | Calcium carbonate surface modifying method |
| CN102220032A (en) * | 2011-03-29 | 2011-10-19 | 上海东升新材料有限公司 | Dry grinding method of ultrafine heavy calcium carbonate |
Non-Patent Citations (1)
| Title |
|---|
| 李运涛等: ""铝钛偶联剂的合成及其对碳酸钙表面性能的影响"", 《化工进展》, vol. 30, no. 9, 31 December 2011 (2011-12-31), pages 2060 - 2064 * |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20130116 |