CN110330814A - A kind of grinding method of high-quality synthetic mica - Google Patents
A kind of grinding method of high-quality synthetic mica Download PDFInfo
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- CN110330814A CN110330814A CN201910680295.4A CN201910680295A CN110330814A CN 110330814 A CN110330814 A CN 110330814A CN 201910680295 A CN201910680295 A CN 201910680295A CN 110330814 A CN110330814 A CN 110330814A
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- 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
- C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
- C09C1/0021—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a core coated with only one layer having a high or low refractive index
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- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/40—Compounds of aluminium
- C09C1/405—Compounds of aluminium containing combined silica, e.g. mica
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- 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
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- 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
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- 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
- C09C3/06—Treatment with inorganic compounds
- C09C3/063—Coating
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
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- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
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- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/64—Optical properties, e.g. expressed in CIELAB-values b* (yellow-blue axis)
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/65—Chroma (C*)
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- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/66—Hue (H*)
Abstract
The invention discloses a kind of grinding method of high-quality synthetic mica, comprising the following steps: a, is crushed: by the broken splitting for being broken into 200-2000um by ultrahigh pressure of mica；B, it separates: splitting being put into and is separated by solid-liquid separation into centrifugal separator, dry moisture；C, it grinds: choosing milling apparatus, put into abrasive media or grinding aid, put into mica shred, control moisture, after grinding 3-8 hour, form mica powder slurrying, discharging；D, settle: the mica powder slurrying that grinding is completed separates the mica powder finished product of each partial size section by hydraulic sedimentation method.Advantage is: the present invention by mica it is broken by ultrahigh pressure it is broken after, grinding is carried out by agitator mill and mixed grinding medium and grinding aid to be slurried, the mica powder finished product of each partial size section is obtained subsequently through hydraulic sedimentation method, process of lapping mica is not damaged, no dust evolution, the advantages of mill amount is few, and quality is high, energy conservation and environmental protection with returning.
Description
Technical field
The present invention relates to mica powder production technical field more particularly to a kind of grinding method of high-quality synthetic mica.
Background technique
Pearlescent pigment as a kind of novel decorative pigment, be widely used in coating, plastics, rubber, ink, leather,
The multiple fields such as paper, ceramics, cosmetics, printing and dyeing, synthetic fluoromica as substrate is few with its impurity, whiteness is good,
Brightness is good, chemical stability is high, gradually substitutes natural mica sheet, becomes the important materials of production mica titanium nacreous material.
The lapping mode of artificial mica synthesis powder is divided into wet process and dry method.And it produces pearlescent pigment and then mica powder is required to use
The mica of wet grinding, wet grinding has surface smooth, and radius-thickness ratio is big, and quality is more pure, is conducive to metal oxide
Cladding.
Currently, principle is based on the grinding for being applied to the artificial mica synthesis powder of pearlescent pigment mostly ground with edge runner
The mica sheet, grinding aid, dispersing agent of fritter are added in the wheel mill groove using water as abrasive media, acted in the weight of muller
Under, make mica peel off to come from cleavage surface point, becomes the mica flake being separated from each other.But rolling grinding has the disadvantage in that
1, difficulty of milling is big, at high cost: the hardness of synthetic mica is big compared with natural mica, it is difficult to and levigate, feed back piece is more after grinding,
Fine powder is also more, needs to be repeated several times grinding, low efficiency, waste is greatly；
2, large stretch of ratio is more after grinding, and diameter 100um powder amount below is very little, is not suitable for producing needs；
3, radius-thickness ratio is poor: influencing the color saturation and brightness of pearly-lustre after cladding, yield rate is low；
For this purpose, we have proposed a kind of grinding method of high-quality synthetic mica to solve the above problems.
Summary of the invention
The purpose of the present invention is to solve the problems in background technique, and a kind of high-quality synthetic mica for proposing is ground
Mill method.
To achieve the goals above, present invention employs following technical solutions: a kind of grinding side of high-quality synthetic mica
Method, comprising the following steps:
A, it is crushed: by the broken splitting for being broken into 200-2000um by ultrahigh pressure of mica；
B, it separates: splitting being put into and is separated by solid-liquid separation into centrifugal separator, dry moisture；
C, grind: selection milling apparatus puts into abrasive media or grinding aid, puts into mica shred, controls moisture, and grinding 3-8 is a
After hour, mica powder slurrying, discharging are formed；
D, settle: the mica powder slurrying that grinding is completed separates the mica powder finished product of each partial size section by hydraulic sedimentation method.
In a kind of grinding method of above-mentioned high-quality synthetic mica, the hydraulic pressure of the high-pressure water is 6-12Mpa.
In a kind of grinding method of above-mentioned high-quality synthetic mica, the grinding aid is the 0.01%- of mica quality
0.05% calgon, mica quality 0.01%-0.05% sodium carbonate or mica quality 0.01%-0.03% hydrogen-oxygen
Change sodium.
In a kind of grinding method of above-mentioned high-quality synthetic mica, the abrasive media be 10x10mm,
Zirconium pearl/column of 7.5x7.5mm, 5x5mm specification.
In a kind of grinding method of above-mentioned high-quality synthetic mica, the milling apparatus is agitator mill, described to stir
The revolving speed for mixing grinding machine is 50-120.
In a kind of grinding method of above-mentioned high-quality synthetic mica, the grinding control moisture is 25%-40%, and is led to
Moisture teller is crossed to be measured.
In a kind of grinding method of above-mentioned high-quality synthetic mica, solid-to-liquid ratio that the hydraulic sedimentation method is classified
For 10%-15%.
In a kind of grinding method of above-mentioned high-quality synthetic mica, the hydraulic sedimentation method be settling methods, on
Rise flow method or centrifugal settling method.
Compared with prior art, the advantages of grinding method of this high-quality synthetic mica, is:
1, it is crushed by the way that the hyperpressure water of 6-12Mpa is broken to synthetic fluoromica, obtains lesser splitting,
Easily facilitate subsequent grinding；
2, agitator mill is set, adds abrasive media and grinding aid, mica sheet is a kind of more difficult levigate as a kind of layer mineral
Mineral, by its levigate active force be frictional force function and effect it is best, and the abrasive media in Ball-stirring mill exactly will friction
Power is preferably applied to the fine grinding of mica, well that mica is exfoliated by the frictional force of medium, and does not make mica table
Face is by damage；
3, the mica powder finished product of each partial size section of mica slurrying is obtained by hydraulic sedimentation method；
In conclusion passing through agitator mill and mixed grinding after the present invention is by being crushed mica grain by ultrahigh pressure
Medium and grinding aid carry out grinding and are slurried, and the mica powder finished product of each partial size section is obtained subsequently through hydraulic sedimentation method, ground
The advantages of journey mica is not damaged, and no dust evolution has back mill amount few, and quality is high, energy conservation and environmental protection.
Specific embodiment
Following embodiment only exists in illustrative purpose, limits the scope of the invention without being intended to.
Embodiment:
A kind of grinding method of high-quality synthetic mica, comprising the following steps:
A, it is crushed: by the broken splitting for being broken into 200-2000um by ultrahigh pressure of mica；The hydraulic pressure of high-pressure water is
6-12Mpa。
B, it separates: splitting being put into and is separated by solid-liquid separation into centrifugal separator, dry moisture；
C, grind: selection milling apparatus puts into abrasive media or grinding aid, puts into mica shred, controls moisture, and grinding 3-8 is a
After hour, mica powder slurrying, discharging are formed；Milling apparatus is agitator mill, and the revolving speed of agitator mill is 50-120, abrasive media
For zirconium pearl/column of 10x10mm, 7.5x7.5mm, 5x5mm specification, grinding aid is the six inclined phosphorus of the 0.01%-0.05% of mica quality
Sour sodium, mica quality 0.01%-0.05% sodium carbonate or mica quality 0.01%-0.03% sodium hydroxide, grinding control
Moisture processed is 25%-40%, and is measured by moisture teller.
D, settle: the mica powder slurrying that grinding is completed, by hydraulic sedimentation method separate the mica powder of each partial size section at
Product, the solid-to-liquid ratio that hydraulic sedimentation method is classified be 10%-15%, hydraulic sedimentation method be settling methods, ascending current method or from
Heart sedimentation.
Settling methods: it by the effect of earth gravitational field, using the density variation of particle and fluid, is allowed to occur opposite
Movement and settle, as long as the density of particle and medium differs, particle under gravity field action will concentration in one direction, or sink
In container bottom or float on the upper layer of medium.
Ascending current method: the typical device of ascending current method is continuous wet elutriator, the basic principle is that using on identical
Water is risen, in the classification pipe of different-diameter, generates different rising water speeds, the different ore particle of granularity is by its difference sedimentation speed
Degree, is divided into several grades.
Centrifugal settling method: centrifugal settling method equipment therefor is series connection vortrap, and also referred to as eddy flow wet elutriator is substantially former
Reason is to carry out classification process in centrifugal force field, and centrifugal force suffered by substance depending on the specific gravity is different, and then makes object
Matter is thrown away at various height.
By the broken hydraulic fracture by 0.8Mpa pressure of synthetic fluoromica at the splitting of 200-2000um, receive
After collection, extra moisture is dried.Agitator mill power supply is connected, motor is started, stirring 30-65 is adjusted and turns, abrasive media is added
Zirconium column or 300 kilograms of zirconium pearl are slowly added into 300 kilograms of dry plates of mica shred, and grinding aid calgon 100g, sodium carbonate is added
100g, sodium hydroxide 50g, control grinding moisture 30%-40%, adjust mill speed 50-120 and turn, grinding is completed after 5 hours, is unloaded
Material, classification, calculate each partial size section yield, by the main shaft high speed rotation with stirring rod, medium are made to do irregular movement, generation rubs
Wiping, collision, extruding and shearing force keep hardness high-leveled and difficult and are ground by levigate compound mica to be suitable for producing pearlescent pigment
Fine granularity thin slice, master slice is a kind of more difficult levigate mineral as a kind of layer mineral, by its levigate active force be friction
The function and effect of power are best, and the abrasive media in Ball-stirring mill, and friction is exactly preferably applied to the fine grinding of mica, is passed through
The frictional force of medium, it is well that mica is exfoliated, and do not make mica surface by damage, while escaping without dust,
The advantages of mill amount is few, and quality is high, energy conservation and environmental protection with returning.
Yield: the ratio of theoretical amount when the amount of actually generating of target product and completely generation target product considers that yield is
Because by-product generation may be refined not exclusively or be had, the quotient of the amount n/ of as generation mica powder total inventory m is yield
C, c=n/m
Comparative example:
A kind of grinding method of high-quality synthetic mica, comprising the following steps:
A, it is crushed: by the broken splitting for being broken into 200-2000um by ultrahigh pressure of mica；The hydraulic pressure of high-pressure water is
6-12Mpa。
B, it separates: splitting being put into and is separated by solid-liquid separation into centrifugal separator, dry moisture；
C, grind: selection milling apparatus puts into abrasive media or grinding aid, puts into mica shred, controls moisture, and grinding 3-8 is a
After hour, mica powder slurrying, discharging are formed；The revolving speed of milling apparatus edge runner, edge runner is 50-60HZ, and grinding aid is mica
The calgon of the 0.01%-0.05% of quality, the sodium carbonate of the 0.01%-0.05% of mica quality or mica quality
The sodium hydroxide of 0.01%-0.03%, grinding control moisture is 25%-40%, and is measured by moisture teller.
D, settle: the mica powder slurrying that grinding is completed, by hydraulic sedimentation method separate the mica powder of each partial size section at
Product, the solid-to-liquid ratio that hydraulic sedimentation method is classified be 10%-15%, hydraulic sedimentation method be settling methods, ascending current method or from
Heart sedimentation.
Settling methods: it by the effect of earth gravitational field, using the density variation of particle and fluid, is allowed to occur opposite
Movement and settle, as long as the density of particle and medium differs, particle under gravity field action will concentration in one direction, or sink
In container bottom or float on the upper layer of medium.
Ascending current method: the typical device of ascending current method is continuous wet elutriator, the basic principle is that using on identical
Water is risen, in the classification pipe of different-diameter, generates different rising water speeds, the different ore particle of granularity is by its difference sedimentation speed
Degree, is divided into several grades.
Centrifugal settling method: centrifugal settling method equipment therefor is series connection vortrap, and also referred to as eddy flow wet elutriator is substantially former
Reason is to carry out classification process in centrifugal force field, and centrifugal force suffered by substance depending on the specific gravity is different, and then makes object
Matter is thrown away at various height.
Edge runner is attached with external power supply, starts motor, is slowly added into 300 kilograms of splitting, and grinding aid is added
Calgon 100g, sodium carbonate 100g, sodium hydroxide 50g, control grinding moisture 30%-40%, adjusting mill speed to 50HZ,
Grinding is completed after 5 hours, discharging, classification calculate each partial size section yield.
Yield: the ratio of theoretical amount when the amount of actually generating of target product and completely generation target product considers that yield is
Because by-product generation may be refined not exclusively or be had, the quotient of the amount n/ of as generation mica powder total inventory m is yield
C, c=n/m；
The yield of each partial size section after being classified in embodiment and comparative example；
| Feed back | 30-150um | 30-100um | 10-60um | 5-25um | <15um | |
| Embodiment | 21.16% | 5.2% | 3.43% | 36.18% | 21.05% | 12.98% |
| Comparative example | 53.52% | 11.78% | 11.53% | 6.82% | 3.1% | 13.24% |
Mica after embodiment and comparative example is classified, after being carried out surface cleaning, activation, coated metal oxide.
By taking 10-60um as an example:
1,10-60um dry powder 40g is taken, is put into 1000ml beaker, adds pure water to 500ml, stirring is warming up to 65-75 DEG C, adjusts
PH value=1.0-1.5.
2,20ml 100g/L tin tetrachloride solution is equably added drop-wise in the reaction kettle of step 1, is added in 1 hour.Together
When be added 32% sodium hydroxide keep pH value stablize.It adds, adjusts PH=2-3.
3,150ml 500g/L titanium tetrachloride solution is equably added drop-wise in the reaction kettle of step 1, is added in 10 hours.
32% sodium hydroxide is added simultaneously keeps pH value to stablize.Stirring is added, after inhaling wash clean, is dried, calcining obtains Gold interference color
Pearlescent pigment.
It produces the synthetic fluoromica powder of all partial size sections to obtain the pearl of Gold interference color by aforementioned production method
Delustering pigment, the method by being coated with or spraying plate, to detect its performance: taking the artificial mica synthesis of a certain amount of example and comparative example
The pearlescent pigment of powder production, is added quantitative resin agitating and is uniformly coated with afterwards, survey its numerical value with colour photometer: see the table below:
| L | a | b | c | h | |
| Embodiment 30-100um | 57.89 | -0.09 | 28.44 | 28.44 | 90.19 |
| Comparative example 30-100um | 55.7 | 1.06 | 27.57 | 27.59 | 87.8 |
| Embodiment 10-60um | 62.44 | 0.01 | 32.06 | 32.06 | 89.98 |
| Comparative example 10-60um | 59.36 | 0.44 | 30.44 | 30.45 | 89.17 |
| Embodiment 5-25um | 60.07 | 1.56 | 31.27 | 31.31 | 87.15 |
| Comparative example 5-25um | 57.12 | 1.52 | 26.57 | 26.61 | 86.73 |
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, and it is any
Those familiar with the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its invents
Design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of grinding method of high-quality synthetic mica, which comprises the following steps:
A, it is crushed: by the broken splitting for being broken into 200-2000um by ultrahigh pressure of mica；
B, it separates: splitting being put into and is separated by solid-liquid separation into centrifugal separator, dry moisture；
C, grind: selection milling apparatus puts into abrasive media and grinding aid, puts into mica shred, controls moisture, and grinding 3-8 is a
After hour, mica powder slurrying, discharging are formed；
D, settle: the mica powder slurrying that grinding is completed separates the mica powder finished product of each partial size section by hydraulic sedimentation method.
2. a kind of grinding method of high-quality synthetic mica according to claim 1, which is characterized in that the high-pressure water
Hydraulic pressure be 6-12Mpa.
3. a kind of grinding method of high-quality synthetic mica according to claim 1, which is characterized in that the grinding aid is
The sodium carbonate or mica matter of the calgon of the 0.01%-0.05% of mica quality, the 0.01%-0.05% of mica quality
The sodium hydroxide of the 0.01%-0.03% of amount.
4. a kind of grinding method of high-quality synthetic mica according to claim 1, which is characterized in that the abrasive media
For zirconium pearl/column of 10x10mm, 7.5x7.5mm, 5x5mm specification.
5. a kind of grinding method of high-quality synthetic mica according to claim 1, which is characterized in that the milling apparatus
For agitator mill, the revolving speed of the agitator mill is 50-120.
6. a kind of grinding method of high-quality synthetic mica according to claim 1, which is characterized in that the grinding control
Moisture is 25%-40%, and is measured by moisture teller.
7. a kind of grinding method of high-quality synthetic mica according to claim 1, which is characterized in that the waterpower sedimentation
The solid-to-liquid ratio that method is classified is 10%-15%.
8. a kind of grinding method of high-quality synthetic mica according to claim 1, which is characterized in that the waterpower sedimentation
Method is settling methods, ascending current method or centrifugal settling method.
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| CN112024116A (en) * | 2020-07-30 | 2020-12-04 | 李景林 | Wet-method particle size classification method for ultramarine blue pigment |
| CN112498000A (en) * | 2020-11-27 | 2021-03-16 | 单县华民工艺品有限公司 | Color matching method and device for colored eggs |
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