CN106745020B - 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
- C01B33/40—Clays
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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
-
- 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
-
- 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
-
- 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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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/11—Powder tap density
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/19—Oil-absorption capacity, e.g. DBP values
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/90—Other properties not specified above
Abstract
The present invention relates to a kind of high oil-absorbing kaolin and its preparation method and application, preparation method includes the following steps: to obtain kaolin raw ore, and desanding, roughing is selected, scans, and delaminates, and calcines to get the high oil-absorbing kaolin.The high oil-absorbing kaolin specific surface area that above-mentioned preparation method obtains reaches 468.1m2/ g, oil factor are measured as 114.1ml/100g, are higher by 27-90% than common kaolin calcined oil absorbency (existing is usually 60ml-90ml/100g).Using the slurry of mineral facial mask for the high oil-absorbing kaolin preparation that above-mentioned preparation method obtains, oil-control better effect, it will usually 15-30% better than common facial mask oil-control effect.
Description
Technical field
The present invention relates to cosmetic technical fields, more particularly to a kind of high oil-absorbing kaolin and preparation method thereof and answer
With.
Background technique
As cosmetics are in the growing and booming of the product market that disappears fastly, 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 frost, the market scale of muffin also increasingly increase.Kaolin is widely used
Into the mud mask category related to color make-up in facial mask category, kaolin is mainly dirty with porous structure absorption skin in the product
Dirt and grease reach the effect of cleaning oil-control.
It applies at present and matter is mainly carried out with particle size, whiteness and content of beary metal in the kaolin of cosmetic field
The characterization of figureofmerit, model of the kaolin oil absorbency applied in cosmetic field usually sold on the market in 60-80ml/100g
It encloses, and rarely has for kaolin key effects index oil absorbency and whiteness the progress related process spy applied in cosmetic field
Rope.
Summary of the invention
Based on this, the object of the present invention is to provide a kind of high oil-absorbing kleit preparing methods.
Specific technical solution is as follows:
A kind of high oil-absorbing kleit preparation method, includes 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 and removes sand slurry；
Roughing: using hydrocyclone to described except sand slurry carries out roughing, feed ore concentration 18-22wt% is pressed into slurry
Power is 0.13-0.17MPa, and overflow port collects to obtain roughing mortar, and underflow mortar is collected to obtain in underflow；
It is selected: selected, feed ore concentration 15-18wt% being carried out to the roughing mortar using hydrocyclone, is pressed into slurry
Power is 0.30-0.34MPa, and desilting mouth diameter is 5-7mm, and material overflow port diameter is 10-12mm, and overflow port collects to obtain selected mortar,
Selected underflow mortar is collected to obtain in underflow；
It scans: the underflow mortar being scanned using hydrocyclone, feed ore concentration 18-22wt%, pressed into slurry
Power is 0.13-0.17MPa, and overflow port is collected to scan mortar；
Delaminate: merge the selected underflow mortar and it is described scan mortar, processing of delaminating is carried out using sand mill, then again
It is scanned using hydrocyclone, overflow port collects to delaminate mortar；
Calcining: mortar must be refined by merging the selected mortar and the mortar of delaminating, and the purification mortar is placed in 550-
900 DEG C of calcining 2.5-3.5h are to get the high oil-absorbing kaolin.
In wherein some embodiments, in the kaolin raw ore: SiO2Content is 60-75wt%；Al2O3Content is 18-
24wt%, iron-content are less than 0.4wt%.
In wherein some embodiments, in the roughing step, selecting diameter is the hydrocyclone of 75mm；It is described selected
In step, selecting diameter is the hydrocyclone of 50mm；Described to scan in step, selecting diameter is the hydrocyclone of 75mm；
In the delamination step, selecting diameter is the hydrocyclone of 75mm.
In wherein some embodiments, the particle weight of 2 μm of small Yu accounts for particle total amount 40wt% or more in the purification mortar.
In wherein some embodiments, the temperature of the calcining is 850 DEG C.
In wherein some embodiments, following steps have also been carried out after the purification mortar calcining: being 4mol/L by concentration
Hydrochloric acid and calcined product by the mass ratio of 6-10ml/g in 85-95 DEG C of water-bath 2-2.5h, then distill water washing and remove
Chloride ion is drying to obtain the high oil-absorbing kaolin.
It is a further object of the present invention to provide a kind of high oil-absorbing kaolin that above-mentioned preparation method is prepared.
In wherein some embodiments, the particle weight in the high oil-absorbing kaolin less than 2 μm accounts for particle total amount
40wt% or more
It is a further object of the present invention to provide application of the above-mentioned high oil-absorbing kaolin in cosmetics.
In wherein some embodiments, the cosmetics be facial mask, BB frost or makeup cosmetic (such as: blush, foundation cream,
Eye shadow etc.).
Above-mentioned preparation method has the advantages that
(1) by selecting kaolin raw ore, preferably SiO2Content is 60-75wt%；Al2O3Content is 18-
24wt%, iron-content are less than the kaolin raw ore of 0.4wt%, are suitable for calcining；
(2) preparation method takes washing process, from selecting 40% pulp density to smash paddle, is sieved using 106 μm of vibrating screens,
It is selected using diameter 50mm polyester current divider using diameter 75mm polyester current divider roughing, it scans, the washing process delaminated, energy
Obtain the purification mortar that particle total amount 40wt% or more is accounted for less than 2 μm of particle weight；
(3) it is 850 DEG C for purification mortar calcine technology in preparation method, and modified to calcined kaolin using HCl, changes
Kaolin specific surface area after property reaches 468.1m2/ g, oil factor are measured as 114.1ml/100g, more kaolin calcined than common
Oil absorbency is higher by 27-90% (existing is usually 60ml-90ml/100g).
(4) the slurry of mineral facial mask of the high oil-absorbing kaolin preparation obtained using above-mentioned preparation method, oil-control effect is more
It is good, it will usually 15-30% better than common facial mask oil-control effect.
Detailed description of the invention
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 diagram that Fig. 3 obtains for the kaolin obtained after embodiment calcine technology and sour modified technique；
Fig. 4 is that figure is compared in the oil-control experiment of embodiment difference facial mask.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached 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 disclosure of the present invention more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention 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
Any and all combinations of the listed item of pass.
A kind of high oil-absorbing kleit preparation method of the present embodiment, includes the following steps (as shown in Figure 1):
S1, kaolin raw ore is obtained；
Kaolin is a kind of nonmetallic minerals, is a kind of clay and clay rock based on kaolinite race clay mineral, because
Jiangxi Province, kaolinite village, Jing Dezhen and gain the name.The pure kaolin of matter is in pure white exquisiteness, and soft earthy has good plasticity, is inhaled
Attached property and oil absorbency.Its mineralogical composition is long mainly by kaolinite, galapectite, hydromica, illite, montmorillonite and quartz
The mineral compositions such as stone.It is mainly used in ceramics, rubber, papermaking, the kaolin for meeting characteristic on a small quantity is applied to daily cosmetics,
Soap, medicine, the fields such as weaving, chemical industry.
China has the five big kaolin ore places of production:
(1) the hengyang, hunan province county town Jie Pai rich in mineral resources.Kaolin receives feldspar, potassium feldspar, quartz reserves up to 2
Hundred million tons, it is existing mining and nearly 40 of mineral products processing enterprise.Famous ridge mining area (based on kaolin ore) simple ore reserves rank
The hat in Asia is up to 80,000,000 tons.Quan Zhennian mining amount supplies national hundreds of ceramics factories at 500,000 tons or more.
(2) Maoming area kaolin, kaolin ore category sedimentary rock Weathering-residual hypotype mineral deposit in resources in Maoming Basin, quartz etc.
Sandy content is greater than 50%, therefore referred to as sandy kaoline mine.Maoming Kaolin is said by Weathering-residual from the origin cause of formation, is carried certainly
Mill, again weathering three phases, kaolin weathering is complete, and chip is based on single sheet, fine size.Predominantly papermaking paint raw material.
(3) Longyan kaolin belongs to weathering residual type kaoline deposit.Since iron-content is lower than 0.3%, titanium is lower 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 are hydrothermal alteration type kaolin.The pure Suzhou Yangshan mud of quality is changed
A point very close kaolinic theoretical composition is studied, Al2O3 content 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: belong to weathering residual type kaoline deposit.It is mainly used for architectural pottery raw material.
(6) northern Coaseries kaolin: for appositional pattern Raolinite, it is distributed mainly on China producing coal region, can be used for building, apply
Material, paint and papermaking paint are coal measures soil.
Above-mentioned 6 big producing region yield accounts for about 80% or more China, also there is main representativeness in terms of resource type.The world is high
Ridge soil resource is abundant, 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 contains a small amount of Na2O and K2O, main mineral constituent is the kaolinite of crystallization degree difference, 7A halloysite, white
Mica, quartz and albite.
Ore type has high chamotte, pink mud, pork liver mud, yellow ground mud, low chamotte, sand white clay, three-level mud etc..Wherein high fire
Carefully, after calcining whiteness is high, refractoriness is high with particle for mud (white chunks kaolin) and pink mud (pink Schistose kaolinite),
The features such as small is shunk, is the quality raw materials for manufacturing the cosmetics of super quality.
It is raw material that the present embodiment, which chooses the soft Silicon-rich kaolin of Hengyang, Hunan Province circle board,.
Hunan circle board kaolin physical characteristic:
Boundary's board kaolin is the primary residual Type Kaolin Deposits formed with albite, pegmatite, the elegance and talent such as white clouds master slice.
Ore is earthy compact massive kaolin.Major clay minerals are kaolinite and halloysite, montmorillonite, illite, water cloud
Mother etc., associated mineral are quartz, plagioclase, muscovite etc..
The multinomial analysis of boundary's board kaolin raw ore chemistry are as follows: SiO2Content is 60-75wt%；Al2O3Content is 18-24wt%；
Boundary's board kaolin is known as " Silicon-rich kaolin ", and the kaolin (high chamotte) for boundary's board kaolin white chunks that we choose leads to
X-ray analysis, infrared absorption spectrum analysis are crossed, it is as follows to obtain high chamotte ingredient for thermal analysis:
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, is smash in XDT type and smashes slurry 30min in slurry bucket,
The ore pulp is removed into fine sand by 100-120 μm of water sieve, collects and removes sand slurry.
S3, roughing:
Diameter is used to carry out roughing, feed ore concentration 18- to the sand slurry of removing for the hydrocyclone of 75mm
22wt% is 0.13-0.17MPa into slurry pressure, and overflow port collects to obtain roughing mortar, and underflow mortar is collected to obtain in underflow.
It is S4, selected:
Diameter is used to carry out selected, feed ore concentration 15-18wt% to the roughing mortar for the hydrocyclone of 50mm,
It is 0.30-0.34MPa into slurry pressure, desilting mouth diameter is 5-7mm, and material overflow port diameter is 10-12mm, and overflow port is collected selected
Selected underflow mortar is collected to obtain in mortar, underflow.
S5, it scans:
Diameter is used to scan for the hydrocyclone of 75mm to the underflow mortar, feed ore concentration 18-22wt%,
It is 0.13-0.17MPa into slurry pressure, overflow port is collected to scan mortar.
S6, it delaminates:
Merge the selected underflow mortar and it is described scan mortar, processing of delaminating is carried out using sand mill, is then used again
Hydrocyclone is scanned, and overflow port collects to delaminate mortar.
S7, calcining:
Mortar must be refined by merging the selected mortar and the mortar of delaminating, and the purification mortar is placed in 550-900 DEG C
2.5-3.5h is calcined to get the high oil-absorbing kaolin.
Contain a large amount of Al in kaolinic chemical component2O3,SiO2, a small amount of Fe2O3, and micro K2O、Na2O、
CaO and MgO.Wherein structural formula are as follows: Al4Si4O10(OH)8, passed through altogether by Si-O tetrahedron and the false octahedral layer of Al- (O, OH)
The dioctahedron layer structure at 1:1 type is built in same oxygen atom connection, between layers by the oxygen and aluminium eight in Si-O tetrahedron
The hydrogen bond connection that hydroxy in the body layer of face is formed.
Kaolin oil factor refers to 100g kaolin, and the minimum amount with castor oil is needed when reaching complete wetting.It inhales
Oily value is an important indicator of the specific surface area to kaolin calcined product, gap distribution and pore size evaluation.
Kaolin calcined product identical for partial size, voidage is bigger, and the specific surface of product is bigger, oil absorption
It can be better；Product cut size distribution is more concentrated, and accumulation hole is bigger, then its specific surface area is bigger, and oil absorbency is caused also to get over
It is good.
Calcining is one of the important channel for producing ultrafine kaolin product, pure its object is to improve kaolinic whiteness
Degree, the physical properties such as object phase and active matter change its crystal structure, the performances such as surface and processing, and calcined kaolin has whiteness
Height, density is small, and oil absorption is strong, large specific surface area, the high feature of stability.
In calcination process, the hydrogen bond of interlayer is broken kaolin, absorption water therein, the crystallization water and organic matter
Removing, the metakaolinite structure for keeping original orderly kaolin crystal lamellar structure a century city unordered.So as to cause its mother crystal
The moieties of internal layer are exposed, and the type and quantity of surface-active point increase, and reactivity is largely increased.
Davidovits and Sathy chandrasekhar etc. thinks 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 made to have the activity reacted with acid.
We calcine the kaolin that washing has been prepared into exquisite ore pulp, mainly increase kaolinic porosity,
Activity is improved, is enhanced product performance after removing certain thermocolour impurity, kaolin is made thermal decomposition to occur and eliminating hydroxide and become
Amorphous metakaolin.
Calcination temperature is also to generate one of the key factor of different characteristics product, because there is calcination temperature in calcination process
The object of difference, calcined kaolin products is mutually different, and characteristic is different, causes application direction and application field difference.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 medium temperature, the high-temperature calcination greater 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 heating rate and constant temperature time.Deshydroxy, decarburization and high gap volume etc. during kaolin calcined
Acquisition has important influence.Heating rate and constant temperature time control are appropriate, and carbonaceous depigmentation is thorough, and calcination product surface is clean, than
Surface area is big, is conducive to the formation of tiny hole between particle；Heating rate is fast, and constant temperature time falls short of, deshydroxy, and decarburization is not thorough
Bottom, calcination product hole are low.
The heating rate that the present embodiment is taken are as follows: 200 degrees Celsius of calcination temperature <, heating control is 5-10 DEG C/min, calcining
200 DEG C -400 DEG C of temperature, 10-15 DEG C of heating rate/min；400 DEG C -700 degrees Celsius of calcination temperature, heating rate control is 20-
25 DEG C/min, 700-900 DEG C of calcination temperature, heating rate is 25-30 DEG C/min.
Constant temperature time are as follows: 1.5-2h (calcining terminal).
As shown in Fig. 2, kaolin calcined temperature, before 700 DEG C, apparent weightlessness occurs for kaolin.100℃-
400 DEG C, kaolin weightlessness is mainly caused by burning under air in kaolin containing a small amount of organic matter and carbonaceous, from 400
DEG C -700 DEG C, weightless Main Stage occurs for this process kaolin, this is because calcining is before 400 DEG C, crystal structure object base
This variation, and in this temperature range, kaolin starts to deviate from colloid water and constitution water, leads to 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,
To form the powder of more sky Peng Song pore structures.
S8, acid are modified
It is kaolinic acid modification refers to according to kaolin in calcination process, due to Al in phase transition process chemical environment
Difference, by it, calcining and activating, formation metakaolin make Al therein have acid reactivity at a certain temperature.Due to calcining
The tetrahedral aluminium that process is aggregated to form has acid reactivity, causes it to be easily stripped with acidic materials and reacts.Reaction process
Middle aluminium oxide and magazine Fe therein2O3And Tio2Deng leaching make kaolin surface formed partial hole shoes, thus 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 temperature cooling, a certain amount of calcining is taken to produce
2h, mixing speed 200r/min are reacted in water bath with thermostatic control of the object with hydrochloric acid at 90 DEG C, and filter cake is continuously washed repeatedly with distilled water,
Until not having chloride ion presence to filter cake, it is subsequently placed in drying box and dries i.e. acquisition high oil-absorbing kaolin under 110 degree.
As shown in figure 3, pass through X diffraction analysis, the kaolin spectral shape that the modified kaolin of acid is obtained with S7 step
It is almost the same, do not change the crystal structure of other substances, only soaks the destroyed part Al-O of structure in calcination process
It separates out, isolates Al203, lead to kaolin specific area increase at this time, oil absorbency is significantly improved.
The present embodiment takes the specific surface area after kaolin acid modification to reach 468.1m after firing2/ g, oil factor
It is measured as 114.1ml/100g.
Above-mentioned preparation method obtains high oil-absorbing kaolin with following performance indicator:
The high oil-absorbing kaolin that above-mentioned preparation method obtains can be applied to cosmetics.
The mud mask formula examples developed using above-mentioned high oil-absorbing kaolin are as follows:
Fat secretion measurement, sebumeter method is a kind of method for taking fat secretion object directly to test.Test philosophy is
Using photometric test philosophy, this test method is insensitive for the moisture content of skin.Photoelectricity in grease instrument connection
The light transmittance of sensor test 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.
The kaolin for selecting common kaolin and the present embodiment to be prepared makes mud mask according to formula, passes through 5
For person on probation by the assessment on probation of half face, oil-control data are as shown in Figure 4, it can be seen that are prepared using the present embodiment kaolin
Slurry of mineral facial mask, oil-control better effect can be 15-30% better than common facial mask oil-control effect.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies 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, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (7)
1. a kind of high oil-absorbing kleit preparation method, which comprises the steps of:
Kaolin raw ore is obtained, in the kaolin raw ore: SiO2Content is 60wt%-75wt%, Al2O3Content is 18wt%-
24wt%, iron-content are less than 0.4wt%；
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 remove sand slurry；
Roughing: using hydrocyclone to described except sand slurry carries out roughing, feed ore concentration 18-22wt% is into slurry pressure
0.13-0.17MPa, overflow port collect to obtain roughing mortar, and underflow mortar is collected to obtain in underflow；
It is selected: selected, feed ore concentration 15-18wt% being carried out to the roughing mortar using hydrocyclone, is into slurry pressure
0.30-0.34MPa, desilting mouth diameter are 5-7mm, and material overflow port diameter is 10-12mm, and overflow port collects to obtain selected mortar, underflow
Collect to obtain selected underflow mortar；
It scans: the underflow mortar being scanned using hydrocyclone, feed ore concentration 18-22wt%, be into slurry pressure
0.13-0.17MPa, overflow port are collected to scan mortar；
Delaminate: merge the selected underflow mortar and it is described scan mortar, processing of delaminating is carried out using sand mill, is then used again
Hydrocyclone is scanned, and overflow port collects to delaminate mortar；
Calcining: mortar must be refined by merging the selected mortar and the mortar of delaminating, and the purification mortar is placed in 850 DEG C of calcinings
2.5-3.5h obtains calcined product, wherein the heating rate of the calcining are as follows: when temperature < 200 DEG C, heating rate be 5 DEG C/
Min-10 DEG C/min, when temperature is 200 DEG C -400 DEG C, 10 DEG C/min-15 DEG C/min of heating rate, temperature is 400 DEG C -700 DEG C
When, heating rate be 20 DEG C/min-25 DEG C/min, temperature be 700 DEG C -850 DEG C when, heating rate be 25 DEG C/min-30 DEG C/
min；
The hydrochloric acid that concentration is 4mol/L is pressed into the mass ratio of 6-10ml/g in 85-95 DEG C of water-bath 2- with the calcined product
Then 2.5h distills water washing and removes chloride ion, is drying to obtain the high oil-absorbing kaolin.
2. high oil-absorbing kleit preparation method according to claim 1, which is characterized in that in the roughing step,
Selecting diameter is the hydrocyclone of 75mm；In the concentration step, selecting diameter is the hydrocyclone of 50mm；It is described to scan
In step, selecting diameter is the hydrocyclone of 75mm；In the delamination step, selecting diameter is the hydrocyclone of 75mm.
3. -2 described in any item high oil-absorbing kleit preparing methods according to claim 1, which is characterized in that the purification
Particle weight in mortar less than 2 μm accounts for particle total amount 40wt% or more.
4. the high oil-absorbing kaolin that the described in any item preparation methods of claim 1-3 are prepared.
5. high oil-absorbing kaolin according to claim 4, which is characterized in that less than 2 μ in the high oil-absorbing kaolin
The particle weight of m accounts for particle total amount 40wt% or more.
6. high oil-absorbing kaolin the answering in cosmetics that the described in any item preparation methods of claim 1-3 are prepared
With.
7. application according to claim 6, which is characterized in that the cosmetics are facial mask, BB frost or makeup cosmetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129830.XA CN106745020B (en) | 2016-12-09 | 2016-12-09 | High oil-absorbing kaolin and its preparation method and application |
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| CN102275941B (en) * | 2011-05-17 | 2013-01-16 | 陈文瑞 | Production method of kaolin clay for ceramic with high dry flexural strength |
| CN102491356B (en) * | 2011-11-30 | 2013-04-10 | 唐山麦迪逊高岭土有限公司 | Preparation method of calcined kaolin with high oil absorption |
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