CN104341798A - Modified fine heavy calcium carbonate - Google Patents
Modified fine heavy calcium carbonate Download PDFInfo
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- CN104341798A CN104341798A CN201410151041.0A CN201410151041A CN104341798A CN 104341798 A CN104341798 A CN 104341798A CN 201410151041 A CN201410151041 A CN 201410151041A CN 104341798 A CN104341798 A CN 104341798A
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- calcium carbonate
- heavy calcium
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Abstract
The invention discloses modified fine heavy calcium carbonate. The preparation steps are as follows: 1) feeding calcium carbonate to be processed into a grinding machine for grinding; 2) adding talcum powder and a wetting dispersant during the grinding process and grinding for a period of time to obtain a semi-finished product of heavy calcium carbonate; 3) feeding the semi-finished product of heavy calcium carbonate after grinding into a jet flow classifier to perform classification treatment on the semi-finished product powder to obtain a qualified product and an unqualified product; 4) re-feeding the unqualified product into the grinding machine for grinding, and mixing the product after grinding with the qualified product in the step 3) to obtain heavy calcium carbonate powder; 5) drying the heavy calcium carbonate obtained in the steps in a drying machine, adding a modifier to modify and perform modification by adopting a mist spraying method; and 6) performing drying treatment on the calcium carbonate after adopting a wet grinding process to obtain a finished product.
Description
Technical field
The present invention relates to a kind of water-ground limestone, particularly relate to a kind of modification Fine Heavy Calcium Carbonate.
Background technology
Water-ground limestone is applied at plastics, not only can change the mechanical property of goods preferably, and be again dog-cheap extender, calcium carbonate filled in a large number in goods, can save a large amount of plastic raw materials; Along with to the requirement of plastics and the raising of performance, water-ground limestone can not meet the requirement of plastics, especially for this reason my company has developed a kind of modification Fine Heavy Calcium Carbonate, improve water-ground limestone performance, oil-absorption(number) will be fallen, improve processing fluidity and product cut size distribution range is little.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of modification Fine Heavy Calcium Carbonate, and described modification Fine Heavy Calcium Carbonate oil-absorption(number) is low, processing fluidity good, product cut size distribution range is little.
In order to solve the problem, technical scheme of the present invention is a kind of modification Fine Heavy Calcium Carbonate, and its preparation process is as follows:
1) grind in calcium carbonate to be processed feeding shredder;
2) in process of lapping, add talcum powder, Ricinate, after grinding for some time, heavy calcium carbonate powder work in-process will be obtained;
3) ground water-ground limestone work in-process are sent in Jet Classifier for Super, work in-process powder is carried out stage treatment, obtains qualified product and substandard product;
4) underproof product is sent into shredder again to grind, the product after grinding and above-mentioned steps 3) in qualified product mix, obtain heavy calcium carbonate;
5) water-ground limestone in above-mentioned steps is carried out drying in drying machine, and modification is carried out to its interpolation properties-correcting agent, adopt the modification of spray painting method;
6) drying treatment is carried out to modified calcium carbonate, obtain finished product.
Further, described step 2) in the amount of Ricinate be 0.2 ~ 2:100 with the amount ratio of calcium carbonate to be processed.
Further, described step 2) in Ricinate be sodium acrylate and allylamine multipolymer.
Further, heavy calcium carbonate mass ratio obtained in the amount of the properties-correcting agent in described step 5) and step 4) is 0.5 ~ 2.5:100.
Further, the properties-correcting agent in described step 5) is aluminate coupling agent.
Beneficial effect of the present invention: adopt physical method grinding to obtain water-ground limestone, dispersity is high, and oil-absorption(number) is low, processing fluidity good, product cut size distribution range is little, especially adds aluminate coupling agent as properties-correcting agent, makes its performance more superior.
Embodiment
A kind of modification Fine Heavy Calcium Carbonate, its preparation process is as follows:
1) calcium carbonate just to be processed is sent in shredder and is ground;
2) 20kg calcium carbonate is selected, and in process of lapping, add 0.1kg talcum powder, 0.2kg Ricinate, to obtain heavy calcium carbonate powder work in-process after grinding for some time, the Ricinate adopted in process of lapping is that sodium acrylate and allylamine multipolymer form;
3) ground water-ground limestone work in-process are sent in Jet Classifier for Super, work in-process powder is carried out stage treatment, obtains qualified product and substandard product;
4) underproof product is sent into shredder again to grind, the product after grinding and above-mentioned steps 3) in qualified product mix, obtain heavy calcium carbonate 20kg;
5) water-ground limestone in above-mentioned steps is carried out drying in drying machine, and carry out modification to its interpolation properties-correcting agent, adopt the modification of spray painting method, the properties-correcting agent of employing is aluminate coupling agent, and amount used is 0.15kg;
6) drying treatment is carried out to modified calcium carbonate, obtain finished product.
Above one embodiment of the present of invention have been described in detail, but described content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalizations done according to the invention application range change and improve, and still all should belong to patent covering scope of the present invention.
Claims (5)
1. a modification Fine Heavy Calcium Carbonate, is characterized in that, its preparation process is as follows:
1) grind in calcium carbonate to be processed feeding shredder;
2) in process of lapping, add talcum powder, Ricinate, after grinding for some time, heavy calcium carbonate powder work in-process will be obtained;
3) ground water-ground limestone work in-process are sent in Jet Classifier for Super, work in-process powder is carried out stage treatment, obtains qualified product and substandard product;
4) underproof product is sent into shredder again to grind, the product after grinding and above-mentioned steps 3) in qualified product mix, obtain heavy calcium carbonate;
5) water-ground limestone in above-mentioned steps is carried out drying in drying machine, and modification is carried out to its interpolation properties-correcting agent, adopt the modification of spray painting method;
6) drying treatment is carried out to the calcium carbonate after employing wet grinding technique, obtain finished product.
2. modification Fine Heavy Calcium Carbonate according to claim 1, is characterized in that, described step 2) in the amount of Ricinate be 0.2 ~ 2:100 with the amount ratio of calcium carbonate to be processed.
3. modification Fine Heavy Calcium Carbonate according to claim 2, is characterized in that, described step 2) in Ricinate be sodium acrylate and allylamine multipolymer.
4. modification Fine Heavy Calcium Carbonate according to claim 3, is characterized in that, heavy calcium carbonate mass ratio obtained in the amount of the properties-correcting agent in described step 5) and step 4) is 0.5 ~ 2.5:100.
5. modification Fine Heavy Calcium Carbonate according to claim 4, is characterized in that, the properties-correcting agent in described step 5) is aluminate coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151041.0A CN104341798A (en) | 2014-04-15 | 2014-04-15 | Modified fine heavy calcium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151041.0A CN104341798A (en) | 2014-04-15 | 2014-04-15 | Modified fine heavy calcium carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104341798A true CN104341798A (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410151041.0A Pending CN104341798A (en) | 2014-04-15 | 2014-04-15 | Modified fine heavy calcium carbonate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104845409A (en) * | 2015-04-01 | 2015-08-19 | 安徽江东科技粉业有限公司 | Preparation method for special calcium-based functional composite powder for PE |
| CN105348861A (en) * | 2015-10-23 | 2016-02-24 | 谭乔 | Functional calcium carbonate powder and production method thereof |
| CN105694246A (en) * | 2016-04-07 | 2016-06-22 | 安徽江东科技粉业有限公司 | Preparation method of calcium carbonate special for butyl rubber |
| CN106317963A (en) * | 2016-08-22 | 2017-01-11 | 江西广源化工有限责任公司 | Preparation method of modified calcium carbonate |
| CN106320065A (en) * | 2015-06-26 | 2017-01-11 | 池州学院 | Preparation method of talcum powder and heavy calcium carbonate powder slurry with high solid content |
Citations (5)
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| WO2003074615A1 (en) * | 2002-03-06 | 2003-09-12 | Sachtleben Chemie Gmbh | Method for the production of coated, fine-particle, inorganic solids and use thereof |
| CN1654550A (en) * | 2005-03-04 | 2005-08-17 | 北京化工大学 | Method for modifying the surface of nano inorganic particles by transfer method |
| CN101367963A (en) * | 2008-08-15 | 2009-02-18 | 芜湖同达新材料科技有限公司 | Ultra-fine composite modified heavy calcium carbonate powder, preparation method and uses thereof |
| CN101913639A (en) * | 2010-08-13 | 2010-12-15 | 刘立新 | Self-retention heavy calcium carbonate and preparation method thereof |
| CN103232732A (en) * | 2013-05-02 | 2013-08-07 | 潍坊飞龙功能碳酸钙科技有限公司 | Preparation method of superfine modified ground limestone |
-
2014
- 2014-04-15 CN CN201410151041.0A patent/CN104341798A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003074615A1 (en) * | 2002-03-06 | 2003-09-12 | Sachtleben Chemie Gmbh | Method for the production of coated, fine-particle, inorganic solids and use thereof |
| CN1654550A (en) * | 2005-03-04 | 2005-08-17 | 北京化工大学 | Method for modifying the surface of nano inorganic particles by transfer method |
| CN101367963A (en) * | 2008-08-15 | 2009-02-18 | 芜湖同达新材料科技有限公司 | Ultra-fine composite modified heavy calcium carbonate powder, preparation method and uses thereof |
| CN101913639A (en) * | 2010-08-13 | 2010-12-15 | 刘立新 | Self-retention heavy calcium carbonate and preparation method thereof |
| CN103232732A (en) * | 2013-05-02 | 2013-08-07 | 潍坊飞龙功能碳酸钙科技有限公司 | Preparation method of superfine modified ground limestone |
Non-Patent Citations (1)
| Title |
|---|
| 化学工业出版社组织编写: "《中国化工产品大全（下卷）》", 31 January 2005 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104845409A (en) * | 2015-04-01 | 2015-08-19 | 安徽江东科技粉业有限公司 | Preparation method for special calcium-based functional composite powder for PE |
| CN106320065A (en) * | 2015-06-26 | 2017-01-11 | 池州学院 | Preparation method of talcum powder and heavy calcium carbonate powder slurry with high solid content |
| CN106320065B (en) * | 2015-06-26 | 2018-03-27 | 池州学院 | A kind of preparation method of high solids content talcum powder and heavy calcium carbonate slurry |
| CN105348861A (en) * | 2015-10-23 | 2016-02-24 | 谭乔 | Functional calcium carbonate powder and production method thereof |
| CN105694246A (en) * | 2016-04-07 | 2016-06-22 | 安徽江东科技粉业有限公司 | Preparation method of calcium carbonate special for butyl rubber |
| CN106317963A (en) * | 2016-08-22 | 2017-01-11 | 江西广源化工有限责任公司 | Preparation method of modified calcium carbonate |
| CN106317963B (en) * | 2016-08-22 | 2018-12-25 | 江西广源化工有限责任公司 | A kind of preparation method of modified calcium carbonate |
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Application publication date: 20150211 |