CN106745020A - High oil-absorbing kaolin and its preparation method and application - Google Patents
High oil-absorbing kaolin and its preparation method and application Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/26—Aluminium; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/008—Preparations for oily skin
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Abstract
The present invention relates to a kind of high oil-absorbing kaolin and its preparation method and application, its preparation method comprises the following steps：Kaolin raw ore is obtained, desanding, roughing is selected, scans, and delaminates, calcined, obtain final product the high oil-absorbing kaolin.The high oil-absorbing kaolin specific surface area that above-mentioned preparation method is obtained reaches 468.1m2/ g, its oil factor is determined as 114.1ml/100g, and 27 90% (existing to be usually 60ml 90ml/100g) are higher by than common kaolin calcined oil absorbency.Slurry of mineral facial mask prepared by the high oil-absorbing kaolin obtained using above-mentioned preparation method, oil-control is better, it will usually than common facial mask oil-control effect 15 30%.
Description
Technical field
The present invention relates to cosmetic technical field, more particularly to a kind of high oil-absorbing kaolin and preparation method thereof and should
With.
Background technology
As cosmetics are in the growing and booming of the product market that disappears soon, only facial mask category just surpasses in Chinese market
30,000,000,000 market scale has been crossed, and color make-up air cushion BB is white, the market scale of muffin also increasingly increases.Kaolin is widely used
To in the category related to color make-up of the mud mask in facial mask category, kaolin is mainly dirty with loose structure absorption skin in the product
Dirt and grease, reach effect of cleaning oil-control.
Apply the kaolin in cosmetic field to be mainly with particle size, whiteness and content of beary metal to carry out matter at present
The sign of figureofmerit, model of the kaolin oil absorbency applied in cosmetic field generally sold on the market in 60-80ml/100g
Enclose, and rarely have for applying the kaolin key effects index oil absorbency and whiteness in cosmetic field to carry out related process spy
Rope.
The content of the invention
Based on this, it is an object of the invention to provide a kind of high oil-absorbing kleit preparation method.
Specific technical scheme is as follows：
A kind of high oil-absorbing kleit preparation method, comprises the following steps：
Obtain kaolin raw ore；
Desanding：The kaolin raw ore is made into ore pulp by 35-45wt% concentration and water, the ore pulp is passed through into 100-
120 μm of water sieve removes fine sand, collects desanding mud；
Roughing：Roughing is carried out to the desanding mud using hydrocyclone, feed ore concentration is 18-22wt%, enter slurry pressure
Power is 0.13-0.17MPa, and overfall collects to obtain roughing mortar, and underflow mortar is collected to obtain in underflow；
It is selected：The roughing mortar is carried out using hydrocyclone selected, feed ore concentration is 15-18wt%, enter slurry pressure
Power is 0.30-0.34MPa, and a diameter of 5-7mm of desilting mouthful, a diameter of 10-12mm of flash mouthful, overfall collects to obtain selected mortar,
Selected underflow mortar is collected to obtain in underflow；
Scan：The underflow mortar is scanned using hydrocyclone, feed ore concentration is 18-22wt%, enter slurry pressure
Power is 0.13-0.17MPa, and overfall is collected must scan mortar；
Delaminate：Merge the selected underflow mortar and it is described scan mortar, delaminate treatment, Ran Houzai are carried out using sand mill
Scanned using hydrocyclone, overfall collects the mortar that must delaminate；
Calcining：Merging the selected mortar and the mortar of delaminating must refine mortar, and the refined mortar is placed in into 550-
900 DEG C of calcining 2.5-3.5h, obtain final product the high oil-absorbing kaolin.
Wherein in some embodiments, in the kaolin raw ore：SiO2Content is 60-75wt%；Al2O3Content is 18-
24wt%, iron-holder is less than 0.4wt%.
Wherein in some embodiments, in the roughing step, from the hydrocyclone of a diameter of 75mm；It is described selected
In step, from the hydrocyclone of a diameter of 50mm；It is described to scan step, from the hydrocyclone of a diameter of 75mm；
In the delamination step, from the hydrocyclone of a diameter of 75mm.
Wherein in some embodiments, the particle weight of 2 μm of small Yu accounts for more than particle total amount 40wt% in the refined mortar.
Wherein in some embodiments, the temperature of the calcining is 850 DEG C.
Wherein in some embodiments, following steps are also carried out after the refined mortar calcining：It is 4mol/L by concentration
Hydrochloric acid and calcined product press the mass ratio of 6-10ml/g in 85-95 DEG C of water-bath 2-2.5h, then distill water washing removing
Chlorion, is drying to obtain the high oil-absorbing kaolin.
It is a further object of the present invention to provide the high oil-absorbing kaolin that a kind of above-mentioned preparation method is prepared.
Wherein in some embodiments, the particle weight in the high oil-absorbing kaolin less than 2 μm accounts for particle total amount
More than 40wt%
It is a further object of the present invention to provide application of the above-mentioned high oil-absorbing kaolin in cosmetics.
Wherein in some embodiments, the cosmetics be facial mask, BB frost or makeup cosmetic (for example：Rouge, foundation cream,
Eye shadow etc.).
Above-mentioned preparation method has the following advantages that：
(1) selected by kaolin raw ore, preferably SiO2Content is 60-75wt%；Al2O3Content is 18-
24wt%, kaolin raw ore of the iron-holder less than 0.4wt%, is suitable for calcining；
(2) preparation method takes washing process, and oar is smash from from 40% pulp density, is sieved using 106 μm of vibratory sieves,
It is selected using diameter 50mm polyester current dividers using diameter 75mm polyester current divider roughings, scan, the washing process delaminated, energy
Yield less than the refined mortar that 2 μm of particle weight accounts for more than particle total amount 40wt%；
(3) it is 850 DEG C that refined mortar calcine technology is directed in preparation method, and modified to calcined kaolin using HCl, is changed
Kaolin specific surface area after property reaches 468.1m2/ g, its oil factor is determined as 114.1ml/100g, more kaolin calcined than common
Oil absorbency is higher by 27-90% (existing to be usually 60ml-90ml/100g).
(4) slurry of mineral facial mask prepared by the high oil-absorbing kaolin obtained using above-mentioned preparation method, oil-control effect is more
It is good, it will usually than the common good 15-30% of facial mask oil-control effect.
Brief description of the drawings
Fig. 1 is the kaolinic preparation technology flow chart of embodiment high oil-absorbing；
Fig. 2 is the thermogravimetric analysis figure of the kaolin calcined technique of embodiment high oil-absorbing；
The kaolinic XRD that Fig. 3 is obtained for the kaolin obtained after embodiment calcine technology with sour modified technique；
Fig. 4 is that figure is compared in the oil-control experiment of embodiment difference facial mask.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.But, this
Invention can be realized in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations
The purpose of example is to make the understanding to the disclosure more thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article with belong to technical field of the invention
The implication that technical staff is generally understood that is identical.The term for being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
The arbitrary and all of combination of the Listed Items of pass.
A kind of high oil-absorbing kleit preparation method of the present embodiment, comprises the following steps (as shown in Figure 1)：
S1, acquisition kaolin raw ore；
Kaolin is a kind of nonmetallic minerals, is a kind of clay and clay rock based on kaolinite race clay mineral, because
Jiangxi Province Jing Dezhen kaolinite village and gain the name.The pure kaolin of matter is in pure white exquisiteness, and soft earthy, with good plasticity, is inhaled
Attached property and oil absorbency.Its mineralogical composition is mainly by kaolinite, galapectite, hydromica, illite, montmorillonite and quartz, long
The mineral compositions such as stone.Ceramics are mainly used in, rubber, papermaking, the kaolin that characteristic is met on a small quantity is applied to daily cosmetics,
The fields such as soap, medicine, weaving, chemical industry.
China has the five big kaolin ore places of production：
(1) hengyang, hunan province county Jie Pai towns rich in mineral resources.Kaolin, receive feldspar, potassium feldspar, quartz reserves up to 2
It is hundred million tons, existing to dig up mine and nearly 40 of mineral products processing enterprise.Famous ridge mining area (based on kaolin ore) simple ore reserves are ranked
The hat in Asia is up to 80,000,000 tons.Quan Zhennian mining amount supplies national hundreds of ceramics factories more than 500,000 tons.
(2) Maoming area kaolin, kaolin ore belongs to sedimentary rock Weathering-residual hypotype mineral deposit, its quartz etc. in resources in Maoming Basin
Sandy content is more than 50%, therefore referred to as sandy kaoline ore deposit.Maoming Kaolin is said by Weathering-residual from the origin cause of formation, is carried certainly
Mill, weathering three phases again, kaolin weathering completely, chip based on single sheet, fine size.Predominantly papermaking paint raw material.
(3) Longyan kaolin, belongs to weathering residual type kaoline deposit.Because iron-holder is less than 0.3%, titanium is less than
0.02%, and be electroceramics, high-grade daily, decorative ceramics desirable feedstock containing a certain amount of low-temperature solvent element (Li2O).
(4) Suzhou Yangshan kaolin, the mineral deposit is hydrothermal alteration type kaolin.The pure Suzhou Yangshan mud of quality, its change
Study and point be sufficiently close to kaolinic theoretical composition, Al2O3 contents may be up to 39.0% or so, and color is pure white, particle is fine and smooth.It is main
It is used for catalyst carrier and industrial chemicals.
(5) Hepu kaolin：Category weathering residual type kaoline deposit.It is mainly used in architectural pottery raw material.
(6) northern Coaseries kaolin：It is appositional pattern Raolinite, is distributed mainly on China's producing coal region, can be used to build, applies
Material, paint and papermaking paint, are coal measures soil.
Above-mentioned 6 big producing region yield accounts for China more than 80%, also there is main representativeness in terms of resource type.The world is high
Ridge soil resource enriches, and is distributed relatively broad.The countries such as the U.S., Britain, Brazil, India, Bulgaria, Australia, Russia
There is high grade kaolinite resource.Currently, the world has found out that kaolin resource amount is about 20,900,000,000 tons.
Hunan circle board kaolin is a kind of soft Silicon-rich kaolin.Its Chemical Composition Characteristics is SiO2Content is high, Al2O3、
Fe2O3Content is low, and containing a small amount of Na2O and K2O, main mineral constituent is the kaolinite of crystallization degree difference, 7A halloysites, white
Mica, quartz and albite.
Ore type has chamotte high, pink mud, pork liver mud, yellow ground mud, low chamotte, sand white clay, three-level mud etc..Fire wherein high
Mud (white chunks kaolin) and pink mud (pink Schistose kaolinite) have that particle is thin, whiteness is high, refractoriness is high after calcining,
The features such as shrinking small, is the quality raw materials for manufacturing the cosmetics of super quality.
It is raw material that the present embodiment chooses the soft Silicon-rich kaolin of Hengyang, Hunan Province circle board.
Hunan circle board kaolin physical characteristic：
Boundary's board kaolin is the pegmatite with albite, the primary residual Type Kaolin Deposits that the elegance and talent such as white clouds master slice is formed.
Ore is earthy compact massive kaolin.Major clay minerals are kaolinite and halloysite, montmorillonite, illite, water cloud
Mother etc., associated mineral is quartz, plagioclase, muscovite etc..
The multinomial analysis of boundary board kaolin raw ore chemistry is：SiO2Content is 60-75wt%；Al2O3Content is 18-24wt%；
Boundary's board kaolin is known as " Silicon-rich kaolin ", the kaolin (chamotte high) of boundary's board kaolin white chunks that we choose, and leads to
X-ray analysis are crossed, infrared absorption spectrum analysis, thermal analysis obtain chamotte composition high as follows：
SiO2Content is 70.69%, Al2O3Content is 19.27%, Fe2O3Content is 0.12%；Content of MgO is 0.2%；
CaO content is 0.55%；Na2O content is 0.31%；K2O content is 0.25%；Loss on ignition is 0.78%.
S2, desanding
The kaolin raw ore is made into ore pulp by 35-45wt% concentration and water, slurry 30min is smash in XDT types smash slurry bucket,
The ore pulp is removed into fine sand by 100-120 μm of water sieve, desanding mud is collected.
S3, roughing：
Roughing is carried out to the desanding mud using the hydrocyclone of a diameter of 75mm, feed ore concentration is 18-
22wt%, enters to starch pressure for 0.13-0.17MPa, and overfall collects to obtain roughing mortar, and underflow mortar is collected to obtain in underflow.
It is S4, selected：
The roughing mortar is carried out using the hydrocyclone of a diameter of 50mm selected, feed ore concentration is 15-18wt%,
Enter to starch pressure for 0.30-0.34MPa, a diameter of 5-7mm of desilting mouthful, a diameter of 10-12mm of flash mouthful, overfall is collected selected
Selected underflow mortar is collected to obtain in mortar, underflow.
S5, scan：
The underflow mortar is scanned using the hydrocyclone of a diameter of 75mm, feed ore concentration is 18-22wt%,
Enter to starch pressure for 0.13-0.17MPa, overfall is collected must scan mortar.
S6, delaminate：
Merge the selected underflow mortar and it is described scan mortar, treatment of delaminating is carried out using sand mill, then use again
Hydrocyclone is scanned, and overfall collects the mortar that must delaminate.
S7, calcining：
Merging the selected mortar and the mortar of delaminating must refine mortar, and the refined mortar is placed in into 550-900 DEG C
Calcining 2.5-3.5h, obtains final product the high oil-absorbing kaolin.
Contain substantial amounts of Al in kaolinic chemical composition2O3,SiO2, a small amount of Fe2O3, and micro K2O、Na2O、
CaO and MgO.Wherein structural formula is：Al4Si4O10(OH)8, it is by Si-O tetrahedrons and Al- (O, OH) vacation octahedral layers by altogether
Same oxygen atom connection builds into 1:The dioctahedron layer structure of 1 type, between layers by the oxygen in Si-O tetrahedrons and aluminium eight
The hydrogen bond connection that hydroxy in the body layer of face is formed.
Kaolin oil factor refers to 100g kaolin, is needed when complete wetting is reached with the minimum amount of castor oil.Inhale
Oily value is the specific surface area to kaolin calcined product, the important indicator that space distribution and pore size are evaluated.
For the kaolin calcined product of particle diameter identical, its voidage is bigger, and the specific surface of product is bigger, its oil absorption
Can be better；Product cut size distribution is more concentrated, and accumulation hole is bigger, then its specific surface area is bigger, causes oil absorbency also to be got over
It is good.
Calcining is one of important channel of production ultrafine kaolin product, pure its object is to improve kaolinic whiteness
Degree, the physical property such as thing phase and active matter changes its crystal structure, and the performance such as surface and processing, calcined kaolin has whiteness
Height, density is small, and oil absorption is strong, and specific surface area is big, the characteristics of stability is high.
In calcination process, the hydrogen bond of its interlayer is broken kaolin, absorption water therein, the crystallization water and organic matter
Removing, the metakaolinite structure for making original orderly kaolin crystal lamellar structure a century city unordered.So as to cause its mother crystal
The moieties of internal layer expose, and the type and quantity of surface-active point increase, and its reactivity is largely increased.
Davidovits and Sathy chandrasekhar etc. think that the essence of activation is that kaolin sloughs its aluminium in calcination process
Hydroxyl in oxygen octahedra, makes the ligancy in aluminium courtyard in kaolin become 4 or 5 by 6, it is possessed the activity with acid reaction.
We will wash the kaolin for being prepared into exquisite ore pulp and are calcined, and mainly increase kaolinic porosity,
Improve activity, enhanced product performance after removing certain thermocolour impurity, make kaolin there is thermal decomposition and eliminating hydroxide and become
Amorphous metakaolin.
Calcining heat is also one of key factor of generation different qualities product, because there is calcining heat in calcination process
Difference, the thing of calcined kaolin products is mutually different, and characteristic is different, causes application direction different with application field.According to calcining
Temperature is different, is divided into 550-900 DEG C of low temperature calcination, the calcining of 900-1100 DEG C of middle temperature, the high-temperature calcination more than 1100 DEG C.This
The technique that embodiment is taken is 550-900 DEG C of low temperature calcination, is prevented because high temperature sintering is blocking microporous and hardening.
The selection of programming rate and constant temperature time.Deshydroxy, decarburization and high gap volume etc. during kaolin calcined
Acquisition has important influence.Programming rate and constant temperature time control are appropriate, and thoroughly, calcination product surface is clean for carbonaceous depigmentation, than
Surface area is big, is conducive to the formation of tiny hole between particle；Programming rate is fast, and constant temperature time falls short of, and deshydroxy, decarburization is not thorough
Bottom, calcination product hole is low.
The programming rate that the present embodiment is taken is：200 degrees Celsius of calcining heat ＜, intensification is controlled to 5-10 DEG C/min, calcines
200 DEG C -400 DEG C of temperature, 10-15 DEG C of programming rate/min；400 DEG C -700 degrees Celsius of calcining heat, programming rate is controlled to 20-
25 DEG C/min, 700-900 DEG C of calcining heat, programming rate is 25-30 DEG C/min.
Constant temperature time is：1.5-2h (calcining terminal).
As shown in Fig. 2 kaolin calcined temperature is before 700 DEG C, there is obvious weightlessness in kaolin.100℃-
400 DEG C, burn what is caused under air containing a small amount of organic matter and carbonaceous in the weightless mainly kaolin of kaolin, from 400
DEG C -700 DEG C, there is weightless Main Stage in this process kaolin, this is the crystal structure thing base due to calcining before 400 DEG C
This change, and in this temperature range, kaolin starts to deviate from colloid water and constitution water, causes weightless lasting reduction.At 850 DEG C
There is endothermic peak due to kaolin generation crystalline transformation at a temperature of this in left and right, minimizes its structurally ordered degree and crystallinity,
So as to form the powder of many sky Peng Song pore structures.
S8, acid are modified
Kaolinic acid is modified refer to according to kaolin in calcination process, due to Al in phase transition process chemical environment
Difference, by its calcining and activating at a certain temperature, forms metakaolin, Al therein is had acid reactivity.Due to calcining
Process collects the tetrahedral aluminium to be formed has acid reactivity, causes it that reaction is easily stripped with acidic materials.Course of reaction
Middle aluminum oxide and magazine Fe therein2O3And Tio2Deng leaching make kaolin surface forming part hole footwear, so as to reach change its
Acidity, aperture, the purpose of specific surface area.
Exquisite ore pulp is placed in Muffle furnace and is calcined 3 hours at 850 DEG C, after being cooled down with temperature, taken a certain amount of calcining and produce
2h is reacted in water bath with thermostatic control of the thing with hydrochloric acid at 90 DEG C, and mixing speed is 200r/min, and filter cake distilled water is continuously washed repeatedly,
Treat filter cake do not have chlorion exist untill, be subsequently placed in drying box dried under 110 degree i.e. obtain high oil-absorbing kaolin.
As shown in figure 3, the kaolin spectral shape obtained with S7 steps by X diffraction analysis, the modified kaolin of acid
It is basically identical, the crystal structure of other materials is not changed, simply the destroyed Al-O parts of structure in calcination process are soaked
Go out to separate, isolate Al203, cause now kaolin specific area to increase, oil absorbency is significantly improved.
The present embodiment takes the specific surface area after kaolin acid modification to reach 468.1m after firing2/ g, its oil factor
It is determined as 114.1ml/100g.
Above-mentioned preparation method obtains high oil-absorbing kaolin has following performance indications：
The high oil-absorbing kaolin that above-mentioned preparation method is obtained can be applied to cosmetics.
The mud mask formula examples developed using above-mentioned high oil-absorbing kaolin are as follows：
Fat secretion is determined, and sebumeter methods are a kind of methods for taking fat secretion thing directly to test.Test philosophy is
Using photometric test philosophy, this method of testing is insensitive for the moisture of skin.Photoelectricity in grease instrument connection
The light transmittance of sensor test adhesive tape, and then the fat content of skin surface is converted, fat content is lower, and the cleannes of skin are got over
It is high.
Mud mask is made according to formula from the kaolin that common kaolin and the present embodiment are prepared, by 5
, by the assessment on probation of half face, its oil-control data is as shown in Figure 4, it can be seen that prepared using the present embodiment kaolin for person on probation
Slurry of mineral facial mask, oil-control is better, can be than the common good 15-30% of facial mask oil-control effect.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of high oil-absorbing kleit preparation method, it is characterised in that comprise the following steps：
Obtain kaolin raw ore；
Desanding：The kaolin raw ore is made into ore pulp by 35-45wt% concentration and water, the ore pulp is passed through 100-120 μm
Water sieve remove fine sand, collect desanding mud；
Roughing：Roughing is carried out to the desanding mud using hydrocyclone, feed ore concentration is 18-22wt%, enter to starch pressure and be
0.13-0.17MPa, overfall collects to obtain roughing mortar, and underflow mortar is collected to obtain in underflow；
It is selected：The roughing mortar is carried out using hydrocyclone selected, feed ore concentration is 15-18wt%, enter to starch pressure and be
0.30-0.34MPa, a diameter of 5-7mm of desilting mouthful, a diameter of 10-12mm of flash mouthful, overfall collects to obtain selected mortar, underflow
Collect to obtain selected underflow mortar；
Scan：The underflow mortar is scanned using hydrocyclone, feed ore concentration is 18-22wt%, enter to starch pressure and be
0.13-0.17MPa, overfall is collected must scan mortar；
Delaminate：Merge the selected underflow mortar and it is described scan mortar, treatment of delaminating is carried out using sand mill, then use again
Hydrocyclone is scanned, and overfall collects the mortar that must delaminate；
Calcining：Merging the selected mortar and the mortar of delaminating must refine mortar, and the refined mortar is placed in into 550-900 DEG C
Calcining 2.5-3.5h, obtains final product the high oil-absorbing kaolin.
2. high oil-absorbing kleit preparation method according to claim 1, it is characterised in that the kaolin raw ore
In：SiO2Content is 60-75wt%；Al2O3Content is 18-24wt%, and iron-holder is less than 0.4wt%.
3. high oil-absorbing kleit preparation method according to claim 1, it is characterised in that in the roughing step,
From the hydrocyclone of a diameter of 75mm；In the concentration step, from the hydrocyclone of a diameter of 50mm；It is described to scan
In step, from the hydrocyclone of a diameter of 75mm；In the delamination step, from the hydrocyclone of a diameter of 75mm.
4. the high oil-absorbing kleit preparation method according to claim any one of 1-3, it is characterised in that described refined
Particle weight in mortar less than 2 μm accounts for more than particle total amount 40wt%.
5. the high oil-absorbing kleit preparation method according to claim any one of 1-3, it is characterised in that the calcining
Temperature be 850 DEG C.
6. the high oil-absorbing kleit preparation method according to claim any one of 1-3, it is characterised in that the essence
Following steps have also been carried out after mortar calcining processed：Concentration is pressed the mass ratio of 6-10ml/g for the hydrochloric acid of 4mol/L with calcined product
In 85-95 DEG C of water-bath 2-2.5h, then distill water washing and remove chlorion, be drying to obtain the high oil-absorbing kaolin.
7. the high oil-absorbing kaolin that the preparation method described in any one of claim 1-6 is prepared.
8. high oil-absorbing kaolin according to claim 1, it is characterised in that 2 μ are less than in the high oil-absorbing kaolin
The particle weight of m accounts for more than particle total amount 40wt%.
9. the high oil-absorbing kaolin that the preparation method described in any one of claim 1-6 is prepared answering in cosmetics
With.
10. application according to claim 9, it is characterised in that the cosmetics are facial mask, BB frosts or makeup cosmetic.
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Address after: 410000 No. 390, Guyuan Road, Changsha hi tech Development Zone, Changsha City, Hunan Province Patentee after: Shuiyang Cosmetics Manufacturing Co.,Ltd. Address before: No. 668, Qingshan Road, Changsha hi tech Development Zone, Changsha City, Hunan Province, 410205 Patentee before: HUNAN YUJIA COSMETICS MANUFACTURING Co.,Ltd. |