CN108084739A - A kind of dry type preparation process of calcium carbonate superfine powder - Google Patents
A kind of dry type preparation process of calcium carbonate superfine powder Download PDFInfo
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- CN108084739A CN108084739A CN201711442709.7A CN201711442709A CN108084739A CN 108084739 A CN108084739 A CN 108084739A CN 201711442709 A CN201711442709 A CN 201711442709A CN 108084739 A CN108084739 A CN 108084739A
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- Prior art keywords
- grinding
- calcium carbonate
- dry
- slurry
- carbonate superfine
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- 239000000843 powder Substances 0.000 title claims abstract description 48
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 42
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 24
- 238000000227 grinding Methods 0.000 claims abstract description 19
- 238000009837 dry grinding Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 235000013312 flour Nutrition 0.000 claims description 9
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 7
- 235000013339 cereals Nutrition 0.000 claims description 7
- 239000004571 lime Substances 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 238000001238 wet grinding Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 5
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- -1 dailyization Work Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229940112822 chewing gum Drugs 0.000 description 1
- 235000015218 chewing gum Nutrition 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000012173 sealing wax Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/021—Calcium carbonates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/041—Grinding
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/10—Treatment with macromolecular organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paper (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a kind of dry type preparation processes of calcium carbonate superfine powder, include the following steps：（1）Dry grinding；（2）It impregnates；（3）Secondary slurry grinding；（4）It is dry；（5）Dry grinding is modified, and finally obtains the calcium carbonate superfine powder.The Paris white prepared using the method for the present invention, shape are circular or ellipse, and grain size is thin, and minimum up to 6000 mesh, distribution is close, is easier to combine with organic matter, particularly for " two high one is low " in coating, paint industry（I.e. high powder utilization, high spray area, low-heavy metal content）Powdery paints.
Description
Technical field
The present invention relates to the preparation processes of calcium carbonate, and in particular to a kind of dry type preparation process of calcium carbonate superfine powder.
Background technology
Calcium carbonate is widely used to papermaking, plastics, plastic film, chemical fibre, rubber, adhesive, sealant, dailyization
Work, cosmetics, building materials, ink, putty, sealing wax, putty, carpet veneer packaging, medicine, food（Such as chewing gum, chocolate）, feed,
In coating, paint, effect has：Increase small product size, reduce cost, improve processing performance（Such as adjust viscosity, rheological property,
Curability）, dimensional stability, reinforcement or half reinforcement are improved, improves printing performance, improves physical property（Such as heat resistance, delustring
Property, wearability, anti-flammability, whiteness, glossiness）Deng.Particularly in coating, paint industry, powder utilization to be low, spray area
Small, the problems such as content of beary metal is high, annoyings powdery paints industry always, especially needs to produce that " two is high by one in view of the above problems
It is low "（I.e. high powder utilization, high spray area, low-heavy metal content）Powdery paints.General production technology, usually by supplied materials
Lime stone respectively through jaw crusher, hammer crushing crusher machine, then material is crushed through three-level, grader classification, to point
Grade material up to standard carries out activation modification in mill.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of dry type preparation process of calcium carbonate superfine powder, can produce
Go out calcium carbonate superfine powder, so as to eliminate defect in above-mentioned background technology.
In order to solve the above technical problems, the technical scheme is that：
1st, the dry type preparation process of a kind of calcium carbonate superfine powder, includes the following steps：
（1）Dry grinding
Will lime coarse powder add in milling apparatus in grind, grind 30 minutes, wear into fine powder to average grain diameter up to 1500 mesh more than.
（2）It impregnates
It by the fine powder ground, water, is sufficiently mixed, wherein the 70%-75% of mountain flour accounting weight, the 25%-35% of water accounting weight impregnates
Time is 60 minutes.
（3）Secondary slurry grinding
By obtained slurry using wet grinding manner, and 5% dispersant grinding is added in, obtain thinner slurry and utilize ore pulp
Vortrap is pumped into, qualified fine powder, which is graded, is sent into finished product storage warehouse, and the larger underproof thick slurry of particle is by eddy flow
It is sent into mill and returns mill, until being ground into qualified fine powder is sent into finished product storage warehouse.
（4）It is dry
Slurry is dried using drying equipment, the injection rate of slurry is 40kg/min, drying temperature 280-350
DEG C, utilize the Paris white of the additional bag filter collection 3000-6000 mesh of cyclone collection；
（5）Dry grinding is modified
The Paris white that collection is obtained recycles dry grinding to break up, grinding rate 1460r/min, and in process of lapping
Middle addition modifying agent finally obtains the calcium carbonate superfine powder.
The dispersant uses Sodium Polyacrylate.
The modifying agent uses stearic acid and titanate coupling agent.
The usage amount of the modifying agent is the 1.2-1.5% of Paris white weight.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：
Lime coarse powder is added in milling apparatus carry out dry grinding first by the present invention, is ground 30 minutes, wears into fine powder to putting down
For equal grain size up to more than 1500 mesh, this carries out early-stage preparations to the grinding fine powder in later process.By the fine powder ground, water, fill
Divide the 70%-75% of mixing, wherein mountain flour accounting weight, the 25%-35% of water accounting weight, soaking time is 60 minutes, water and lime
The proportion of fine powder should be controlled strictly and the stringent control of soaking time to be all beneficial to mountain flour fully dispersed in water, formed
Uniform disperse system, the regrinding work beneficial to the later stage carry out.Those skilled in the art is generally known that, to mountain flour into
It during row grinding, is generally ground using two level, three-level, if using multistage again, grinding effect not but not improves, and easily produces
Raw cotton-shaped precipitation, and the present invention being applied in combination using ore pulp mill and classifying cyclone, substantially increase the effect of grinding
Fruit, and cotton-shaped precipitation will not be generated, and save repetition grinding cost.Slurry is dried in the present invention, due to slurry
In do not contain modifying agent, therefore drying temperature can be 280-350 DEG C with selected as, accelerate drying cost-effective, will not influence carbon
The quality of sour calcium, the dry grinding modification of finishing operation make calcium carbonate reach Eligibility requirements.
Specific embodiment
A kind of dry type preparation process of calcium carbonate superfine powder, includes the following steps：
（2）Dry grinding
Will lime coarse powder add in milling apparatus in grind, grind 30 minutes, wear into fine powder to average grain diameter up to 1500 mesh more than.
（2）It impregnates
It by the fine powder ground, water, is sufficiently mixed, wherein the 70%-75% of mountain flour accounting weight, the 25%-35% of water accounting weight impregnates
The bubble slurry time is 60 minutes.
（3）Secondary slurry grinding
By obtained slurry using wet grinding manner, and 5% dispersant grinding is added in, obtain thinner slurry and utilize ore pulp
Vortrap is pumped into, qualified fine powder, which is graded, is sent into finished product storage warehouse, and the larger underproof thick slurry of particle is by eddy flow
It is sent into mill and returns mill, until being ground into qualified fine powder is sent into finished product storage warehouse.
（4）It is dry
Slurry is dried using drying equipment, the injection rate of slurry is 40kg/min, drying temperature 280-350
DEG C, utilize the Paris white of the additional bag filter collection 3000-6000 mesh of cyclone collection；
（5）Dry grinding is modified
The Paris white that collection is obtained recycles dry grinding to break up, grinding rate 1460r/min, and in process of lapping
Middle addition modifying agent finally obtains the calcium carbonate superfine powder.
The dispersant uses Sodium Polyacrylate.
The modifying agent uses stearic acid and titanate coupling agent.
The usage amount of the modifying agent is the 1.2-1.5% of Paris white weight.
Lime coarse powder is added in milling apparatus carry out a dry grinding first by the present invention, is ground 30 minutes, is worn into fine powder
More than to average grain diameter up to 1500 mesh, this carries out early-stage preparations to the grinding fine powder in later process.By the fine powder ground,
Water is sufficiently mixed, wherein the 70%-75% of mountain flour accounting weight, the 25%-35% of water accounting weight, and soaking time is 60 minutes, water
It should strictly be controlled with the proportion of lime fine powder and the stringent control of soaking time is all beneficial to mountain flour and is well dispersed in water
In, uniform disperse system is formed, the regrinding work beneficial to the later stage carries out.Those skilled in the art is generally known that,
When being ground to mountain flour, generally ground using two level, three-level, if using multistage again, grinding effect not but not improves, and
And easily generate cotton-shaped precipitation, and the present invention is applied in combination using ore pulp mill and classifying cyclone, substantially increases
The effect of grinding, and cotton-shaped precipitation will not be generated, and save repetition grinding cost.Slurry is dried in the present invention,
Due to not containing modifying agent in slurry, drying temperature can be 280-350 DEG C with selected as, accelerate drying cost-effective, also not
The quality of calcium carbonate can be influenced, the dry grinding modification of finishing operation makes calcium carbonate reach Eligibility requirements.
Using existing method, minimum 2000 mesh of grain size of Paris white, although activation rate and the method for the present invention
Almost, but its content of beary metal is high, powder utilization is low, spray area is small.It can thus be seen that the carbon prepared using the present invention
Sour calcium powder, shape are circular or ellipse, and grain size is thin, and minimum up to 6000 mesh, distribution is close, is easier to combine with organic matter.
Particularly for " two high one is low " in coating, paint industry（I.e. high powder utilization, high spray area, low-heavy metal content）Powder
Last coating.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
Claims (4)
1. a kind of dry type preparation process of calcium carbonate superfine powder, includes the following steps：
Dry grinding
Will lime coarse powder add in milling apparatus in grind, grind 30 minutes, wear into fine powder to average grain diameter up to 1500 mesh more than；
（2）It impregnates
It by the fine powder ground, water, is sufficiently mixed, wherein the 70%-75% of mountain flour accounting weight, the 25%-35% of water accounting weight impregnates
Time is 60 minutes；
（3）Secondary slurry grinding
By obtained slurry using wet grinding manner, and 5% dispersant grinding is added in, obtain thinner slurry and utilize ore pulp
Vortrap is pumped into, qualified fine powder, which is graded, is sent into finished product storage warehouse, and the larger underproof thick slurry of particle is by eddy flow
It is sent into mill and returns mill, until being ground into qualified fine powder is sent into finished product storage warehouse；
（4）It is dry
Slurry is dried using drying equipment, the injection rate of slurry is 40kg/min, drying temperature 280-350
DEG C, utilize the Paris white of the additional bag filter collection 3000-6000 mesh of cyclone collection；
（5）Dry grinding is modified
The Paris white that collection is obtained recycles dry grinding to break up, grinding rate 1460r/min, and in process of lapping
Middle addition modifying agent finally obtains the calcium carbonate superfine powder.
2. the dry type preparation process of a kind of calcium carbonate superfine powder according to claim 1, which is characterized in that the dispersant is adopted
Use Sodium Polyacrylate.
3. the dry type preparation process of a kind of calcium carbonate superfine powder according to claim 1, which is characterized in that the modifying agent is adopted
With stearic acid and titanate coupling agent.
A kind of 4. dry type preparation process of calcium carbonate superfine powder according to claim 1 or 3, which is characterized in that the modification
The usage amount of agent is the 1.2-1.5% of Paris white weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442709.7A CN108084739A (en) | 2017-12-27 | 2017-12-27 | A kind of dry type preparation process of calcium carbonate superfine powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442709.7A CN108084739A (en) | 2017-12-27 | 2017-12-27 | A kind of dry type preparation process of calcium carbonate superfine powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108084739A true CN108084739A (en) | 2018-05-29 |
Family
ID=62179661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711442709.7A Pending CN108084739A (en) | 2017-12-27 | 2017-12-27 | A kind of dry type preparation process of calcium carbonate superfine powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108084739A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019396A (en) * | 2019-12-06 | 2020-04-17 | 佛山众塑联供应链服务有限公司 | Preparation method of modified heavy calcium carbonate for PVC foamed sheet hard plastic product and modified heavy calcium carbonate |
-
2017
- 2017-12-27 CN CN201711442709.7A patent/CN108084739A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111019396A (en) * | 2019-12-06 | 2020-04-17 | 佛山众塑联供应链服务有限公司 | Preparation method of modified heavy calcium carbonate for PVC foamed sheet hard plastic product and modified heavy calcium carbonate |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180529 |
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| WD01 | Invention patent application deemed withdrawn after publication |