CN101293664A - Process for preparing ultra-fine heavy calcium carbonate slurry - Google Patents
Process for preparing ultra-fine heavy calcium carbonate slurry Download PDFInfo
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- CN101293664A CN101293664A CNA2008100315646A CN200810031564A CN101293664A CN 101293664 A CN101293664 A CN 101293664A CN A2008100315646 A CNA2008100315646 A CN A2008100315646A CN 200810031564 A CN200810031564 A CN 200810031564A CN 101293664 A CN101293664 A CN 101293664A
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Abstract
The invention relates to a production method of ultra-fine heavy calcium carbonate slurry formed by size mixing, buffering, twice grinding and detecting, stabilization and factory testing. The method completely solves the defects that the product GCC of D98 grade at home depends on import and domestic equipment cannot produce the product of D95-D98 grade. The production process is simple and reasonable and produces the product GCC of D98 grade which passes the paper coating test carried out by China National Pulp and Paper Research Institute, and the test of National Paper Products Quality supervision Inspection Center as well as accords with the requirements, thus providing new and better product GCC for industries of China, such as paper making, daily chemical industry institute, plastic, rubber, paint coating, PVC pipes, medicine, and so on. The method has good social and economic benefits and fills a domestic blank in the field.
Description
Technical field
The present invention relates to novel material new technology development Application Areas.It is the production method that calcium content is become a kind of infant industry material-ultra-fine heavy calcium carbonate slurry in the calcite ore deep processing more than 98%.
Background technology
At present, with water-ground limestone roughing breeze through the slurry made after the meticulous deep processing or dry powder (being called for short GCC) in industry widespread uses such as papermaking, daily use chemicals, plastics, rubber, paint, pvc pipe and medicine, its effect is the improvement quality, reduces cost and environment purification.The solid content height of GCC, size distribution is good, viscosity is low, rheological is good.The classification of GCC is to be that the per-cent that 2 μ m and following umber account for the gross weight umber is standard with particle diameter in the product.Umber as 2 μ m and following size distribution in the GCC slurry products accounts for 95% of gross weight umber, and solid content is 75%, viscosity number is≤200cp, just is decided to be D95 level GCC.China now can produce D95 level GCC, but mainly relies on foreign import equipment production; The above GCC product of D95 level is all wanted import.This has not only retrained the further expansion that China GCC produces, and has also reduced national foreign exchange stockage.
Summary of the invention
At the existing deficiency of the present domestic GCC production status of China, the purpose of this invention is to provide a kind of production method that adopts home equipment to produce the ultra-fine heavy calcium carbonate slurry of D95 level-D98 level GCC.
Technical scheme of the present invention is: 1. concrete production process for size mixing, cushion, 1
#Grind and detection, 2
#Grind and detect, stablize and the detection of dispatching from the factory.2. gordian technique of the present invention is: the weight proportion of water and polypropylene acid sodium-salt dispersion agent in the additive; Rotating speed, flow, temperature and the dispersion agent of equipment operation drip the control of some amount in the process of lapping; The control of the viscosity of product, solid content and particle diameter technical indicator in the grinding.
Advantage of the present invention is: 1. can produce D95-D98 level GCC product by enough home equipments, save foreign exchange, reduce the equipment maintenance difficulty, thoroughly having changed in the past, product needs full situation by import.2. provide more excellent GCC product for the relevant industry of China.It can improve and improve intensity, opacifying property, smooth pliability and the ventilation property etc. of paper product; Also can improve and improve hardness and rigidity, stability, heat-resistant antifriction, smooth glossiness, ultra-violet radiation resisting and the chemical resistance etc. of plastic products; Also can improve and improve anti-of rubber articles and spread resistance to spalling and wear resistance, increase volume, adjust denseness etc.; Also alternative costliness eliminate white powder, improve the whiteness, drying property, opacifying power of coating and anti-towards wear resistance etc.; More can adjust the dispersiveness of printing ink, transparent and glossiness etc., in the daily use chemicals product, play the friction agent effect as filler.3. production process is simple and direct rationally, product is through the experimentize coated test of chamber LWC of China National Pulp ﹠ Paper Research Institute, and White Board carried out superpressure after damping, pattern after the superpressure send national paper quality supervision and inspection center to measure, solid content (%) is 75.85, (25 ℃ of viscosity, cp) be 144, whiteness (%) is 94.6, and abrasion (mg/2000 time) are 1.9, and screenings (%) is 0.0112, PH is 8.8, the parts by weight of 10 μ m and following particle diameter and 5 μ m and following particle diameter be 100%, 2 μ m and following be 97%, 1 μ m and following be 79%.Social and economic benefits and good has been filled up domestic blank.
Embodiment
Dispersion agent of the present invention is the polypropylene acid sodium-salt, and its different product code numbering can have neutrality, alkalescence and acidic chemical feature respectively; Additive then is to be mixed by certain weight ratio by dispersion agent and water.
Concrete production process of the present invention is:
1. size mixing:
1. earlier 325 order GCC breeze raw materials are carried out physics and chemistry and detect, determine that it is still acidity of neutrality, alkalescence according to its chemical ingredients and pH value, to determine the concrete kind of dispersion agent;
2. will be by weight breeze: water: the compound of dispersion agent=be mixed with at 76%: 23.5%: 0.5% places the pond of sizing mixing, and this moment, total consumption of dispersion agent was 0.5% of a combined amount gross weight;
3. obtain slurry after about high speed dispersion 30min;
4. test slurry, solid content=76%, viscosity≤700cp.
2. cushion:
1. slurry is pumped in the buffer barrel stir with taking out stock pump;
2. be that 76% accepted stock disperses storage to supply with solid content.
3.1
#Grind and detect:
1. with surge pump accepted stock is pumped into 1
#Shredder;
2. by weight water: the additive of dispersion agent=make at 1: 3 is located at 1 by the drop pump
#In the shredder, 2 some dropping points on top align at the accepted stock that grinds and drip, this moment, total consumption of dispersion agent was the 0.3%-0.4% of accepted stock gross weight, concrete amount is determined according to index in producing;
3. in the process of lapping, 1
#The rotating speed controlled frequency of shredder is 30Hz-50Hz, and flow is 1.8l/s-2.4l/s, and temperature is 30 ℃-40 ℃;
4. sampling detects, and acquisition viscosity is that 70mpa.s-100mpa.s, solid content are that 75.6%-76%, particle diameter are the work in-process of 0.5 μ m 〉=5%, 1 μ m 〉=28%, 2 μ m 〉=74%.
4.2
#Grind and detect:
1. with surge pump work in-process are pumped into 2 by the flow design requirement
#Shredder;
2. by weight water: the additive of dispersion agent=make at 1: 1 is located at 2 by the drop machine
#In the shredder, 2 some dropping points on top align at the work in-process that grind and drip, this moment, total consumption of dispersion agent was the 0.2%-0.3% of work in-process gross weight;
3. in the process of lapping, 2
#The rotating speed controlled frequency of shredder is 30Hz-50Hz, and flow is 1.8l/s-2.4l/s, and temperature is 30 ℃-40 ℃;
4. sampling detects, and obtains viscosity and be about 140mpa.s, solid content is more than 75%, particle diameter is the qualified product of 0.5 μ m 〉=15%, 1 μ m 〉=65%, 2 μ m 〉=98%.
5. stablize and the detection of dispatching from the factory:
1. qualified product are placed finished barrel, carry out 24h, 48h and 72h stable storing respectively;
2. to the preceding detection of dispatching from the factory of the qualified product after stable.
The viscosity of GCC product, solid content and particle diameter connect each other in process of production and restrict, and the usage quantity of dispersion agent is crossed a lot of anti-sticking effects, the very few dissemination of unable to get up again; Effective control of total consumption of rotating speed, flow, temperature and the dispersion agent relative breeze gross weight of two shredders when concrete operation then is the reliable assurance of producing D95 level-D98 level GCC qualified product.
Claims (1)
1. the production method of a ultra-fine heavy calcium carbonate slurry is characterized in that its concrete production process is:
(1) size mixing:
1. earlier 325 order GCC breeze raw materials are carried out physics and chemistry and detect, determine that it is still acidity of neutrality, alkalescence according to its chemical ingredients and pH value, to determine the concrete kind of dispersion agent;
2. will be by weight breeze: water: the compound of dispersion agent=be mixed with at 76%: 23.5%: 0.5% places the pond of sizing mixing, and this moment, total consumption of dispersion agent was 0.5% of a combined amount gross weight;
3. obtain slurry after about high speed dispersion 30min;
4. test slurry, solid content=76%, viscosity≤700cp.
(2) buffering:
1. slurry is pumped in the buffer barrel stir with taking out stock pump;
2. be that 76% accepted stock disperses storage to supply with solid content.
(3) 1
#Grind and detect:
1. with surge pump accepted stock is pumped into 1
#Shredder;
2. by weight water: the additive of dispersion agent=make at 1: 3 is located at 1 by the drop pump
#In the shredder, 2 some dropping points on top align at the accepted stock that grinds and drip, this moment, total consumption of dispersion agent was the 0.3%-0.4% of accepted stock gross weight, concrete amount is determined according to index in producing;
3. in the process of lapping, 1
#The rotating speed controlled frequency of shredder is 30Hz-50Hz, and flow is 1.8l/s-2.4l/s, and temperature is 30 ℃-40 ℃;
4. sampling detects, and acquisition viscosity is that 70mpa.s-100mpa.s, solid content are that 75.6%-76%, particle diameter are the work in-process of 0.5 μ m 〉=5%, 1 μ m 〉=28%, 2 μ m 〉=74%.
(4) 2
#Grind and detect:
1. with surge pump work in-process are pumped into 2 by the flow design requirement
#Shredder;
2. by weight water: the additive of dispersion agent=make at 1: 1 is located at 2 by the drop machine
#In the shredder, 2 some dropping points on top align at the work in-process that grind and drip, this moment, total consumption of dispersion agent was the 0.2%-0.3% of work in-process gross weight;
3. in the process of lapping, 2
#The rotating speed controlled frequency of shredder is 30Hz-50Hz, and flow is 1.8l/s-2.4l/s, and temperature is 30 ℃-40 ℃;
4. sampling detects, and obtains viscosity and be about 140mpa.s, solid content is more than 75%, particle diameter is the qualified product of 0.5 μ m 〉=15%, 1 μ m 〉=65%, 2 μ m 〉=98%.
(5) the stable and detection of dispatching from the factory:
1. qualified product are placed finished barrel, carry out 24h, 48h and 72h stable storing respectively;
2. to the preceding detection of dispatching from the factory of the qualified product after stable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810031564A CN100586861C (en) | 2008-06-20 | 2008-06-20 | Process for preparing ultra-fine heavy calcium carbonate slurry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810031564A CN100586861C (en) | 2008-06-20 | 2008-06-20 | Process for preparing ultra-fine heavy calcium carbonate slurry |
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| Publication Number | Publication Date |
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| CN101293664A true CN101293664A (en) | 2008-10-29 |
| CN100586861C CN100586861C (en) | 2010-02-03 |
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| CN200810031564A Active CN100586861C (en) | 2008-06-20 | 2008-06-20 | Process for preparing ultra-fine heavy calcium carbonate slurry |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304871A (en) * | 2011-06-30 | 2012-01-04 | 湖南磊鑫新材料科技有限公司 | Production method for coating pigments on white board |
| CN102864681A (en) * | 2012-09-30 | 2013-01-09 | 湖南磊鑫新材料科技有限公司 | Method for preparing superfine coarse whiting size with general calcite mineral powder |
| CN103525130A (en) * | 2013-10-16 | 2014-01-22 | 上海东升新材料有限公司 | Preparation method of heavy calcium carbonate with narrow particle size |
| CN103721826A (en) * | 2013-12-31 | 2014-04-16 | 上海东升新材料有限公司 | Preparation method of heavy calcium carbonate with narrow particle size |
| 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 |
| CN104858031A (en) * | 2015-06-03 | 2015-08-26 | 安徽省铜陵县牛山矿业有限责任公司 | Preparation device of mineral coating substrates |
| CN105032579A (en) * | 2015-06-03 | 2015-11-11 | 安徽省铜陵县牛山矿业有限责任公司 | Envelope TiO2 slurry continuous grinding device |
| CN105032580A (en) * | 2015-06-03 | 2015-11-11 | 安徽省铜陵县牛山矿业有限责任公司 | Continuous grinding device for mineral extender |
| CN112127211A (en) * | 2020-09-27 | 2020-12-25 | 山西宇皓环保纸业有限公司 | Stone paper, calcium carbonate slurry and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973614B (en) * | 2015-06-25 | 2016-11-30 | 广西白莹特种纸有限公司 | A kind of heavy calcium carbonate slurry and the application in papermaking coating thereof |
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2008
- 2008-06-20 CN CN200810031564A patent/CN100586861C/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304871A (en) * | 2011-06-30 | 2012-01-04 | 湖南磊鑫新材料科技有限公司 | Production method for coating pigments on white board |
| CN102304871B (en) * | 2011-06-30 | 2012-12-26 | 湖南磊鑫新材料科技有限公司 | Production method for coating pigments on white board |
| CN102864681A (en) * | 2012-09-30 | 2013-01-09 | 湖南磊鑫新材料科技有限公司 | Method for preparing superfine coarse whiting size with general calcite mineral powder |
| CN102864681B (en) * | 2012-09-30 | 2014-10-08 | 湖南磊鑫新材料科技有限公司 | Method for preparing superfine coarse whiting size with general calcite mineral powder |
| CN103525130A (en) * | 2013-10-16 | 2014-01-22 | 上海东升新材料有限公司 | Preparation method of heavy calcium carbonate with narrow particle size |
| CN103721826A (en) * | 2013-12-31 | 2014-04-16 | 上海东升新材料有限公司 | Preparation method of heavy calcium carbonate with narrow particle size |
| 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 |
| CN104858031A (en) * | 2015-06-03 | 2015-08-26 | 安徽省铜陵县牛山矿业有限责任公司 | Preparation device of mineral coating substrates |
| CN105032579A (en) * | 2015-06-03 | 2015-11-11 | 安徽省铜陵县牛山矿业有限责任公司 | Envelope TiO2 slurry continuous grinding device |
| CN105032580A (en) * | 2015-06-03 | 2015-11-11 | 安徽省铜陵县牛山矿业有限责任公司 | Continuous grinding device for mineral extender |
| CN112127211A (en) * | 2020-09-27 | 2020-12-25 | 山西宇皓环保纸业有限公司 | Stone paper, calcium carbonate slurry and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100586861C (en) | 2010-02-03 |
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| C56 | Change in the name or address of the patentee |
Owner name: LEIXIN MINING GYPSUM EXPERT CO., LTD. Free format text: FORMER NAME: TAOYUAN LEIXIN TECHNOLOGY CO.,LTD. |
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Address after: Zoushi Industrial Park, 415701 Hunan County of Taoyuan province zoushi town Patentee after: Changde Leixin Minerals Technology Co., Ltd. Address before: Zoushi Industrial Park, 415701 Hunan County of Taoyuan province zoushi town Patentee before: Taoyuan Leixin Technology Co., Ltd. |
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Owner name: HUNAN LEIXIN NEW MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHANGDE CITY LEIXIN MINING INDUSTRY SCIENCE AND TECHNOLOGY CO., LTD. |
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Address after: Zou County of Taoyuan city in Hunan province Changde City Industrial Park 415701 Patentee after: Hunan Leixin New Material Technology Co.,Ltd. Address before: Zoushi Industrial Park, 415701 Hunan County of Taoyuan province zoushi town Patentee before: Changde Leixin Minerals Technology Co., Ltd. |