CN104610779A - Preparation method of polyethylene glycol modified ground calcium carbonate powder - Google Patents
Preparation method of polyethylene glycol modified ground calcium carbonate powder Download PDFInfo
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- CN104610779A CN104610779A CN201410851248.9A CN201410851248A CN104610779A CN 104610779 A CN104610779 A CN 104610779A CN 201410851248 A CN201410851248 A CN 201410851248A CN 104610779 A CN104610779 A CN 104610779A
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Abstract
The invention relates to a preparation method of polyethylene glycol modified ground calcium carbonate powder. The preparation method is characterized by comprising the following steps: feeding a coarse calcium carbonate material of which the diameter is smaller than 1 cm into a flour mill, according to percentage by weight of coarse ground calcium carbonate powder, adding 1-3% of sodium carbonate, grinding the added sodium carbonate at the temperature of 85-95 DEG C until the diameter of the ground sodium carbonate is 5-10 microns, adding water, compounding a sizing agent of which the solid content is 70-80%, according to percentage by weight of the ground calcium carbonate powder, adding 1-5% of a modifying agent, injecting the sizing agent into a mixing grinding stripping machine by a wet method through a pump valve, and grinding the sizing agent in grinding media so as to obtain modified superfine calcium carbonate powder of which the particle diameter is 0.1-1 micron. The preparation method disclosed by the invention has the advantages of being scientific and reasonable in design, simple in technology, high in safe reliability, easy to control, convenient to operate, suitable for mass production, low in production cost and the like.
Description
Technical field
The invention belongs to a kind of production method of calcium carbonate powder.
Background technology
At present, calcium carbonate is widely used in papermaking, plastics, plastics film, chemical fibre, rubber, tackiness agent, sealing agent, daily-use chemical industry, makeup, building materials, coating, paint, ink, putty, sealing wax, putty, carpet veneer is packed, medicine, food is (as chewing gum, chocolate), in feed, its effect has: increase small product size, reduce costs, improve processing characteristics (as adjusting viscosity, rheological property, curability), improve dimensional stability, reinforcement or half reinforcement, improve printing performance, improve physicals (as thermotolerance, extinction, wear resistance, flame retardant resistance, whiteness, glossiness) etc.The technological process of production of water-ground limestone has two kinds.Dry technology for production flow process: the first calcite, Wingdale, chalk, shell etc. that ship from stone quarry of picking, to remove gangue; Then with crusher, coarse breaking is carried out to Wingdale, cover that (pendulum-type) abrasive dust is broken obtains microlith limestone flour again with thunder, finally carry out classification with grading machine to abrasive dust, the powder meeting granularity requirements is put in storage as the packing of product, otherwise returns pulverizing mill abrasive dust again.Wet process technique flow process: first dry method fine powder is made suspension and be placed in grinding machine and pulverize further, just obtained superfine heavy calcium carbonate after dehydration, drying.
Retrieve through Chinese publication, find calcium carbonate application for a patent for invention 53; Do not find the scheme identical with present patent application.
Summary of the invention
The object of the invention is to; A kind of preparation method of poly ethyldiol modified heavy calcium carbonate is proposed.
The preparation method of poly ethyldiol modified heavy calcium carbonate of the present invention, comprises stone fragmentation, pulverizing, grinding, screening, activation, drying, classification, and product-collecting is packed; It is characterized in that: calcium carbonate coarse fodder diameter being less than 1 centimetre, send in pulverizing mill, with the weight percent meter of coarse heavy calcium carbonate powder, add after 1-3% sodium carbonate grinds and cause 5-10 micron at 85 ~ 95 DEG C, add water and be made into the slurry that solid content is 70% ~ 80%, with the weight percent meter of heavy calcium carbonate, add 1-5% and add properties-correcting agent, by pump valve, slurry is squeezed into wet method and stir disintegrating machine, grind in grinding medium, obtain the modified superfine Paris white that obtained particle diameter is 0.1 ~ 1 micron; Described auxiliary agent, by weight, by oxyethyl group bay cruel amine 25-30 part, aluminate coupling agent 5-8 part, sodium carbonate 5-8 part, ethylene glycol 5-8 part, sulfenyl silane 1-3 part, polyoxyethylene glycol 3-5 part, 6--vinyl tributyl ketoximyl silane 1-3 part forms.
The present invention compared with prior art its beneficial effect is: have design science reasonable, and technique is simple, safe reliability, is easy to control, easy to operate, is applicable to scale operation, the advantages such as production cost is low.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but embodiments of the present invention are not limited thereto.
Embodiment 1
The preparation method of poly ethyldiol modified heavy calcium carbonate of the present invention, comprises stone fragmentation, pulverizing, grinding, screening, activation, drying, classification, and product-collecting is packed; It is characterized in that: calcium carbonate coarse fodder diameter being less than 1 centimetre, send in pulverizing mill, with the weight percent meter of coarse heavy calcium carbonate powder, add after 1-3% sodium carbonate grinds and cause 5-10 micron at 85 ~ 95 DEG C, add water and be made into the slurry that solid content is 70% ~ 80%, with the weight percent meter of heavy calcium carbonate, add 1-5% and add properties-correcting agent, by pump valve, slurry is squeezed into wet method and stir disintegrating machine, grind in grinding medium, obtain the modified superfine Paris white that obtained particle diameter is 0.1 ~ 1 micron; Described auxiliary agent, by weight, by oxyethyl group bay cruel amine 25-30 part, aluminate coupling agent 5-8 part, sodium carbonate 5-8 part, ethylene glycol 5-8 part, sulfenyl silane 1-3 part, polyoxyethylene glycol 3-5 part, 6--vinyl tributyl ketoximyl silane 1-3 part forms.
Embodiment 2
The preparation method of poly ethyldiol modified heavy calcium carbonate of the present invention, comprises stone fragmentation, pulverizing, grinding, screening, activation, drying, classification, and product-collecting is packed; It is characterized in that: calcium carbonate coarse fodder diameter being less than 1 centimetre, send in pulverizing mill, with the weight percent meter of coarse heavy calcium carbonate powder, add after 1-3% sodium carbonate grinds and cause 5-10 micron at 85 ~ 95 DEG C, add water and be made into the slurry that solid content is 70% ~ 80%, with the weight percent meter of heavy calcium carbonate, add 1-5% and add properties-correcting agent, by pump valve, slurry is squeezed into wet method and stir disintegrating machine, grind in grinding medium, obtain the modified superfine Paris white that obtained particle diameter is 0.1 ~ 1 micron; Described auxiliary agent, by weight, by the cruel amine of oxyethyl group bay 25 parts, aluminate coupling agent 8 parts, 5 parts, sodium carbonate, ethylene glycol 8 parts, 1 part, sulfenyl silane, polyoxyethylene glycol 5 parts, 6--vinyl tributyl ketoximyl silane 1-3 part forms.
Embodiment 3
The preparation method of poly ethyldiol modified heavy calcium carbonate of the present invention, comprises stone fragmentation, pulverizing, grinding, screening, activation, drying, classification, and product-collecting is packed; It is characterized in that: calcium carbonate coarse fodder diameter being less than 1 centimetre, send in pulverizing mill, with the weight percent meter of coarse heavy calcium carbonate powder, add after 1-3% sodium carbonate grinds and cause 5-10 micron at 85 ~ 95 DEG C, add water and be made into the slurry that solid content is 70% ~ 80%, with the weight percent meter of heavy calcium carbonate, add 1-5% and add properties-correcting agent, by pump valve, slurry is squeezed into wet method and stir disintegrating machine, grind in grinding medium, obtain the modified superfine Paris white that obtained particle diameter is 0.1 ~ 1 micron; Described auxiliary agent, by weight, by the cruel amine of oxyethyl group bay 30 parts, aluminate coupling agent 5 parts, 8 parts, sodium carbonate, ethylene glycol 5 parts, 3 parts, sulfenyl silane, polyoxyethylene glycol 3 parts, 6--vinyl tributyl ketoximyl silane 1-3 part forms.
Claims (1)
1. a preparation method for poly ethyldiol modified heavy calcium carbonate, comprises stone fragmentation, pulverizing, grinding, screening, activation, drying, classification, and product-collecting is packed; It is characterized in that: calcium carbonate coarse fodder diameter being less than 1 centimetre, send in pulverizing mill, with the weight percent meter of coarse heavy calcium carbonate powder, add after 1-3% sodium carbonate grinds and cause 5-10 micron at 85 ~ 95 DEG C, add water and be made into the slurry that solid content is 70% ~ 80%, with the weight percent meter of heavy calcium carbonate, add 1-5% and add properties-correcting agent, by pump valve, slurry is squeezed into wet method and stir disintegrating machine, grind in grinding medium, obtain the modified superfine Paris white that obtained particle diameter is 0.1 ~ 1 micron; Described auxiliary agent, by weight, by oxyethyl group bay cruel amine 25-30 part, aluminate coupling agent 5-8 part, sodium carbonate 5-8 part, ethylene glycol 5-8 part, sulfenyl silane 1-3 part, polyoxyethylene glycol 3-5 part, 6--vinyl tributyl ketoximyl silane 1-3 part forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410851248.9A CN104610779A (en) | 2014-12-31 | 2014-12-31 | Preparation method of polyethylene glycol modified ground calcium carbonate powder |
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| CN201410851248.9A CN104610779A (en) | 2014-12-31 | 2014-12-31 | Preparation method of polyethylene glycol modified ground calcium carbonate powder |
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| CN104610779A true CN104610779A (en) | 2015-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978277A (en) * | 2017-05-06 | 2017-07-25 | 山西兰花华明纳米材料股份有限公司 | A kind of preparation method of screw cleaning agent calcium carbonate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875793A (en) * | 2010-05-20 | 2010-11-03 | 建德市兴隆钙粉有限公司 | Production method for superfine modified heavy calcium carbonate by wet grinding |
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2014
- 2014-12-31 CN CN201410851248.9A patent/CN104610779A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875793A (en) * | 2010-05-20 | 2010-11-03 | 建德市兴隆钙粉有限公司 | Production method for superfine modified heavy calcium carbonate by wet grinding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978277A (en) * | 2017-05-06 | 2017-07-25 | 山西兰花华明纳米材料股份有限公司 | A kind of preparation method of screw cleaning agent calcium carbonate |
| CN106978277B (en) * | 2017-05-06 | 2019-07-23 | 山西兰花华明纳米材料股份有限公司 | A kind of preparation method of screw cleaning agent calcium carbonate |
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Application publication date: 20150513 |