CN100999331A - Preparation method of high retention heavy calcium carbonate - Google Patents
Preparation method of high retention heavy calcium carbonate Download PDFInfo
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- CN100999331A CN100999331A CN 200610147900 CN200610147900A CN100999331A CN 100999331 A CN100999331 A CN 100999331A CN 200610147900 CN200610147900 CN 200610147900 CN 200610147900 A CN200610147900 A CN 200610147900A CN 100999331 A CN100999331 A CN 100999331A
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Abstract
This invention discloses a preparation method that high remains water-ground limestone and its application. Add water-ground limestone in water, add sodium polyacrylate dispering agent in water, mix, get water-ground limestone mortar, grind, prepare water-ground limestone mortar, wherein content of less than 2mum is 20-60%; add cationic surfactant in mortar, mix 0.5-3.0 hours, add cationic surfactant in mortar, mix 0.5-3.0 hours, get high remaining water-ground limestone mortar. This high remaining water-ground limestone, which is used as paper fillers, can increase first - pass retention and total retention of bulking agent, and increase fiber retention. It profits to decrease water density, bulking agent dosage, wood pulp dosage, abrasion for papermachine forming fabric, and cost, and protect environment.
Description
Technical field
The present invention relates to the preparation method of water-ground limestone, technical field, specifically a kind of height that is used for paper making raw material keeps the preparation method of coarse whiting.
Background technology
The factor of restriction paper industry development is a lot, and wherein unreasonable the and effective supply for a long time of fibrous material structure is not enough is bottleneck problem.A very important reason is that the papermaking cost is too high.Cause the economic benefit of papermaking enterprise not really desirable, paper-making fibre is mainly from wood pulp and wheat straw.And Straw Pulp has seasonality, adds the enforcement of straw-returning technology, and the purchase wheat straw is difficulty more, and Straw Pulp is very limited at aspects such as environmental protection and product specifications, and therefore, the market ratio of wheat straw also can reduce.
Under the prerequisite that does not influence paper quality, reduce the higher paper pulp fiber consumption of price, the cheap relatively amount of filler of improving price is the effective way that addresses the above problem.
Along with acid papermaking changes to neutral papermaking, water-ground limestone becomes the important raw and processed materials that paper industry improves paper quality, reduces the papermaking cost day by day.
The market price of wood pulp is 6000 yuans per ton at present, and the market price of filler only is 500 yuans per ton, the ratio of filler is about 10%-20% in the paper, if the ratio of filler is brought up to 20-30% by 10%-20%, and ton paper cost decline 400-500 unit then.But water-ground limestone is to the abrasion height of net, and retention rate is low, has increased production cost and to the difficulty of White Water Treatment.Chinese patent CN1122309A wet method prepares the method for superfine heavy calcium carbonate, Chinese patent CN 1095080A superfine heavy calcium carbonate and technology thereof, the preparation method of Chinese patent CN 1359986A flaky heavy calcium carbonate, the preparation method of Chinese patent CN 1757601A submicron heavy calcium carbonate does not relate to the high preparation method who keeps coarse whiting in these patents.Among the preparation method of a Chinese patent CN 1800268A heavy calcium carbonate filling, disclose a kind of preparation method of low abrasion water-ground limestone, be mainly and solved the prepared water-ground limestone of abrasion, and retention rate improves also seldom.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of high retention heavy calcium carbonate is to solve the problems referred to above that prior art exists.
The preparation method of high retention heavy calcium carbonate of the present invention comprises the steps:
100～600 order heavy calcium carbonates are added in the entry, and Xiang Shuizhong adds the sodium polyacrylate dispersion agent, add-on is 0.2～2.0% of a heavy calcium carbonate dry grain weight amount, stirs, and the weight content that obtains water-ground limestone is 35～75% heavy calcium carbonate slurry, stir, make slurry obtain good flowability, mill then, preferably adopt ultra-fine machine or the sand mill of delaminating of wet type that water-ground limestone is carried out ultra-fine mill, make heavy calcium carbonate slurry, wherein less than 2 μ m content 20～60%;
In slurry, add then working as in the cats product of ground whiting dry powder weight 0.2～2.0%, stirred 0.5～3.0 hour, and then in slurry, add working as in the cats product of ground whiting dry powder weight 0.5～5.0%, restir 0.5～3.0 hour, obtain the high coarse whiting slurry that keeps, slurry can directly be used as papermaking filler.Also can further dewater and make filter cake, filter cake can directly be used as papermaking filler; Also filtration cakes torrefaction, pulverizing can be made the high coarse whiting powder that keeps, as papermaking filler.
The retention rate of the water-ground limestone that is obtained is 80～85%, and the retention rate of the water-ground limestone of producing than ordinary method improves more than 5%.
The 145th page of disclosed method in " pulping and paper-making chemical examination and quality testing " book of the detection employing Wang Zhonghou chief editor of retention rate.
Said wet type is ultra-fine, and delaminate machine or sand mill is a kind of general equipment, the trade mark of producing as double leaf fine chemistry industry machinery company limited is the ultra-fine machine of delaminating of wet type of BP series, Jiangyin fine chemistry industry machinery company limited produce the trade mark be the sand mill of SK series.
The present invention adds cats product in heavy calcium carbonate slurry, cats product one end is the very strong positively charged ion of polarity, and the other end is the very weak long hydrocarbon chain of polarity.Cats product adds at twice, after tensio-active agent adds for the first time, positively charged ion one end that tensio-active agent polarity is very strong and the negatively charged ion generation effect on water-ground limestone surface, SURFACTANT ADSORPTION is to the water-ground limestone particle surface, the long-chain hydrocarbon that the other end polarity is very weak covers the water-ground limestone particle surface, makes the water-ground limestone particle surface become low-pole.After tensio-active agent adds for the second time, tensio-active agent low-pole long-chain hydrocarbon can with the water-ground limestone particle surface generation effect of low-pole, the positively charged ion retention heavy calcium carbonate particulate surface that the other end polarity is very strong, make the original electronegative water-ground limestone particle surface lotus that becomes positively charged, make water-ground limestone become the positively charged ion coarse whiting.The positively charged positively charged ion coarse whiting in this surface joins in the paper pulp, the positive charge of water-ground limestone particle surface can with pulp fiber surface with negative charge produce the intensive effect, make the water-ground limestone particle be adsorbed on pulp fiber surface firmly, thereby improve the retention rate of filler, since pulp fiber surface with negative charge make preparation for dropping lowly, also improve simultaneously the retention rate of paper pulp fiber.
Described cats product is selected from one or more in dodecyl benzyl dimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, cetalkonium chloride, stearyl dimethyl benzyl ammonium chloride, palmityl trimethyl ammonium chloride, cetyl trimethylammonium bromide, the hexadecylpyridinium chloride.
Height with the present technique preparation keeps coarse whiting as papermaking filler; can improve filler initial journey retention rate and total retention rate; simultaneously also can improve the fiber retention rate; help reducing white water consistency; reduce amount of filler and wood pulp consumption; minimizing helps reducing cost and helping environment protection to the wearing and tearing of paper machine forming net.
Embodiment
Embodiment 1
4 ton of 100 order heavy calcium carbonate joined in 7.4 tons of deionized waters, stir and make slurry, and in slurry, add 8kg sodium polyacrylate dispersion agent, stir.With pump slurry is sent into 300 liters of machines of delaminating then, water-ground limestone is ground, make heavy calcium carbonate slurry, wherein less than 2 μ m content 20% with the machine of delaminating.
In making heavy calcium carbonate slurry, add the 8kg dodecyl benzyl dimethyl ammonium chloride then, stirred 2 hours, and then in heavy calcium carbonate slurry, add the 20kg cetalkonium chloride, stirred 1.5 hours, obtain the high coarse whiting slurry that keeps, slurry can directly be used as papermaking filler.
Embodiment 2
4 ton of 400 order heavy calcium carbonate joined in 3 tons of deionized waters, stir and make slurry, and in slurry, add 20kg sodium polyacrylate dispersion agent, fully stir, make slurry obtain good flowability.With pump slurry is sent into 300 liters of sand mills then, water-ground limestone is ground, make heavy calcium carbonate slurry, wherein less than 2 μ m content 60% with sand mill.In making heavy calcium carbonate slurry, add the 40kg dodecyl dimethyl benzyl ammonium bromide then, stirred 1 hour, and then in heavy calcium carbonate slurry, add the 80kg stearyl dimethyl benzyl ammonium chloride, stirred 2 hours, obtain the high coarse whiting slurry that keeps, to make solid content be 5.6 tons of 70% filter cakes to slurry through filtering, and can directly be used as papermaking filler.
Embodiment 3
4 ton of 600 order heavy calcium carbonate joined in 1.3 tons of deionized waters, stir and make slurry, and in slurry, add 80kg sodium polyacrylate dispersion agent, fully stir, make slurry obtain good flowability.With pump slurry is sent into 80 liters of machines of delaminating then, water-ground limestone is ground, make heavy calcium carbonate slurry, wherein less than 2 μ m content 30% with the machine of delaminating.In making heavy calcium carbonate slurry, add the 80kg dodecyl benzyl dimethyl ammonium chloride then, stirred 1.5 hours, and then in heavy calcium carbonate slurry, add the 200kg stearyl dimethyl benzyl ammonium chloride, and stirred 2.5 hours, obtain the high coarse whiting slurry that keeps.To make solid content be 6.9 tons of 60% filter cakes to slurry through filtering, and through 105 ℃ of dryings 3 hours, pulverizes through beater grinder again, obtains high 4.1 tons of the coarse whiting powders that keep, and can be used as papermaking filler.
Embodiment 4
4 ton of 200 order heavy calcium carbonate joined in 5 tons of deionized waters, stir and make slurry, and in slurry, add 10kg sodium polyacrylate dispersion agent, fully stir, make slurry obtain good flowability.With pump slurry is sent into 300 liters of machines of delaminating then, water-ground limestone is ground, make heavy calcium carbonate slurry, wherein less than 2 μ m content 40% with the machine of delaminating.In making heavy calcium carbonate slurry, add the 30kg palmityl trimethyl ammonium chloride then, stirred 3 hours, and then in heavy calcium carbonate slurry, add the 50kg hexadecylpyridinium chloride, stirred 3 hours, obtain the high coarse whiting slurry that keeps, slurry can directly be used as papermaking filler.
Embodiment 5
4 ton of 300 order heavy calcium carbonate joined in 4 tons of deionized waters, stir and make slurry, and in slurry, add 50kg sodium polyacrylate dispersion agent, fully stir, make slurry obtain good flowability.With pump slurry is sent into 300 liters of machines of delaminating then, water-ground limestone is ground, make heavy calcium carbonate slurry, wherein less than 2 μ m content 50% with the machine of delaminating.In making heavy calcium carbonate slurry, add the 70kg cetyl trimethylammonium bromide then, stirred 0.5 hour, and then in heavy calcium carbonate slurry, add the 80kg dodecyl benzyl dimethyl ammonium chloride, stirred 0.5 hour, obtain the high coarse whiting slurry that keeps.To make solid content be 6.2 tons of 65% filter cakes to slurry through filtering, and through 110 ℃ of dryings 2 hours, pulverizes through beater grinder again, obtains high 3.9 tons of the coarse whiting powders that keep, and can be used as papermaking filler.
Embodiment 6
With 1880 fourdrinier wire multi-cylinder culture papers, replace common coarse whiting to be used for double gummed paper production with the high coarse whiting filler that keeps of same fineness, investigate the manufacture paper with pulp influence of process of papermaking, the variation of white water consistency, machine water concentration, initial journey retention rate.
Experiment condition:
Paper machine type, 1880 fourdrinier wire multi-cylinder culture papers; Produce the paper kind, 70g/m
2Double gummed paper; Filler, the high coarse whiting that keeps; Common coarse whiting.
*Annotate: 20 grades of expressions wherein account for 20% of lime carbonate total mass less than the calcium carbonate granule content of 2 μ m, down together.
Claims (8)
1. the preparation method of a high retention heavy calcium carbonate comprises the steps:
Heavy calcium carbonate is added in the entry, and Xiang Shuizhong adding sodium polyacrylate dispersion agent, stir, obtain heavy calcium carbonate slurry, stir, mill then, make heavy calcium carbonate slurry, wherein less than 2 μ m content 20～60%;
In slurry, add then working as in the cats product of ground whiting dry powder weight 0.2～2.0%, stirred 0.5～3.0 hour, and then in slurry, add working as in the cats product of ground whiting dry powder weight 0.5～5.0%, restir 0.5～3.0 hour obtains the high coarse whiting slurry that keeps.
2. method according to claim 1 is characterized in that, heavy calcium carbonate is 100～600 orders.
3. method according to claim 1 is characterized in that, sodium polyacrylate dispersion agent add-on is 0.2～2.0% of a heavy calcium carbonate dry grain weight amount.
4. method according to claim 1 is characterized in that, the weight content of heavy calcium carbonate slurry is 35～75%.
5. method according to claim 1 is characterized in that, adopts ultra-fine machine or the sand mill of delaminating of wet type that water-ground limestone is carried out ultra-fine mill.
6. method according to claim 1, it is characterized in that described cats product is selected from one or more in dodecyl benzyl dimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, cetalkonium chloride, stearyl dimethyl benzyl ammonium chloride, palmityl trimethyl ammonium chloride, cetyl trimethylammonium bromide, the hexadecylpyridinium chloride.
7. according to the high retention heavy calcium carbonate of each described method preparation of claim 1～6.
8. the application of high retention heavy calcium carbonate according to claim 7 is as papermaking filler.
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| CN100441507C CN100441507C (en) | 2008-12-10 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101514265B (en) * | 2008-12-30 | 2012-01-25 | 上海东升新材料有限公司 | Mixed calcium carbonate, preparation method and application thereof |
| CN102351230A (en) * | 2011-07-06 | 2012-02-15 | 湖南磊鑫新材料科技有限公司 | Preparation method of ultrafine active heavy calcium carbonate |
| CN102616878A (en) * | 2012-03-29 | 2012-08-01 | 上海东升新材料有限公司 | Pretreatment separating agent of straw pulping black liquor |
| CN102845845A (en) * | 2012-09-26 | 2013-01-02 | 昆山市周市斐煌服饰厂 | Fouling-resisting shirt and manufacture process |
| CN102863168A (en) * | 2012-03-07 | 2013-01-09 | 广西贺州市科隆粉体有限公司 | Agglomerated stone filler |
| CN103627212A (en) * | 2013-08-16 | 2014-03-12 | 湖南磊鑫新材料科技有限公司 | Preparation method and preparation apparatus for ultrafine heavy calcium coating filler |
| CN104294703A (en) * | 2014-09-29 | 2015-01-21 | 金东纸业（江苏）股份有限公司 | Modified ground calcium carbonate and production method thereof |
| CN104480784A (en) * | 2014-12-08 | 2015-04-01 | 平桂管理区望高湘桂造纸厂 | Preparation method of paper coating superfine ground calcium carbonate |
| CN104743598A (en) * | 2015-03-04 | 2015-07-01 | 江西科越科技有限公司 | Preparation method of coarse whiting special for papermaking |
| CN104973614A (en) * | 2015-06-25 | 2015-10-14 | 广西白莹纸业有限公司 | Heavy calcium carbonate slurry and application thereof to paper-making and coating |
| CN106906693A (en) * | 2017-04-17 | 2017-06-30 | 华东理工大学 | A kind of preparation method of papermaking filler heavy calcium carbonate slurry |
| CN106948215A (en) * | 2017-04-17 | 2017-07-14 | 华东理工大学 | A kind of preparation method and application of papermaking filler calcium carbonate slurry |
| CN106968129A (en) * | 2017-04-17 | 2017-07-21 | 华东理工大学 | A kind of preparation method and application of low abrasion calcium carbonate slurry |
| CN107012723A (en) * | 2017-04-17 | 2017-08-04 | 华东理工大学 | A kind of preparation method of low abrasion calcium carbonate slurry |
| CN114149696A (en) * | 2021-12-17 | 2022-03-08 | 亚士创能科技(上海)股份有限公司 | Modified calcium carbonate, preparation method, anti-aging exterior wall coating and application |
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| EP1176254A1 (en) * | 2000-07-24 | 2002-01-30 | The Dow Chemical Company | Use of dispersions of crosslinked cationic starch in papermaking |
| CN100419032C (en) * | 2005-01-05 | 2008-09-17 | 上海东升新材料有限公司 | Heavy calcium carbonate filling preparation method |
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- 2006-12-25 CN CNB2006101479004A patent/CN100441507C/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101514265B (en) * | 2008-12-30 | 2012-01-25 | 上海东升新材料有限公司 | Mixed calcium carbonate, preparation method and application thereof |
| CN102351230A (en) * | 2011-07-06 | 2012-02-15 | 湖南磊鑫新材料科技有限公司 | Preparation method of ultrafine active heavy calcium carbonate |
| CN102863168A (en) * | 2012-03-07 | 2013-01-09 | 广西贺州市科隆粉体有限公司 | Agglomerated stone filler |
| CN102616878A (en) * | 2012-03-29 | 2012-08-01 | 上海东升新材料有限公司 | Pretreatment separating agent of straw pulping black liquor |
| CN102616878B (en) * | 2012-03-29 | 2013-08-21 | 上海东升新材料有限公司 | Pretreatment separating agent of straw pulping black liquor |
| CN102845845A (en) * | 2012-09-26 | 2013-01-02 | 昆山市周市斐煌服饰厂 | Fouling-resisting shirt and manufacture process |
| CN103627212A (en) * | 2013-08-16 | 2014-03-12 | 湖南磊鑫新材料科技有限公司 | Preparation method and preparation apparatus for ultrafine heavy calcium coating filler |
| CN104294703B (en) * | 2014-09-29 | 2016-06-22 | 金东纸业（江苏）股份有限公司 | A kind of modified abrasive calcium carbonate and production method thereof |
| CN104294703A (en) * | 2014-09-29 | 2015-01-21 | 金东纸业（江苏）股份有限公司 | Modified ground calcium carbonate and production method thereof |
| CN104480784A (en) * | 2014-12-08 | 2015-04-01 | 平桂管理区望高湘桂造纸厂 | Preparation method of paper coating superfine ground calcium carbonate |
| CN104743598A (en) * | 2015-03-04 | 2015-07-01 | 江西科越科技有限公司 | Preparation method of coarse whiting special for papermaking |
| CN104973614A (en) * | 2015-06-25 | 2015-10-14 | 广西白莹纸业有限公司 | Heavy calcium carbonate slurry and application thereof to paper-making and coating |
| CN106906693A (en) * | 2017-04-17 | 2017-06-30 | 华东理工大学 | A kind of preparation method of papermaking filler heavy calcium carbonate slurry |
| CN106948215A (en) * | 2017-04-17 | 2017-07-14 | 华东理工大学 | A kind of preparation method and application of papermaking filler calcium carbonate slurry |
| CN106968129A (en) * | 2017-04-17 | 2017-07-21 | 华东理工大学 | A kind of preparation method and application of low abrasion calcium carbonate slurry |
| CN107012723A (en) * | 2017-04-17 | 2017-08-04 | 华东理工大学 | A kind of preparation method of low abrasion calcium carbonate slurry |
| CN114149696A (en) * | 2021-12-17 | 2022-03-08 | 亚士创能科技(上海)股份有限公司 | Modified calcium carbonate, preparation method, anti-aging exterior wall coating and application |
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