CN107523097A - A kind of pigment, titanium white compound powder, titanium dioxide and preparation method thereof - Google Patents
A kind of pigment, titanium white compound powder, titanium dioxide and preparation method thereof Download PDFInfo
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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
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
- C09C1/3684—Treatment with organo-silicon compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
- C09C1/3615—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C1/3623—Grinding
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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
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
- C09C1/3669—Treatment with low-molecular organic compounds
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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
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
- C09C1/3676—Treatment with macro-molecular organic compounds
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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
- 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
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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
- 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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- 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
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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
- 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
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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
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/12—Treatment with organosilicon compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Abstract
A kind of pigment, titanium white compound powder, titanium dioxide and preparation method thereof, belong to chemical field.Offer is mixed with the first organic phase and the first chamber of the first inorganic phase containing titanium dioxide, wherein, the first organic phase includes organic grinding aid, and the first inorganic phase is to be provided in a manner of the titanium dioxide crude product for crushing long time without surface modification treatment.First chamber is crushed, and is mixed with Second Organic Phase, wherein, Second Organic Phase includes the compound of silane coupler and silicone oil.Titanium dioxide provided by the invention has the advantages that technological operation is simple, fabrication cycle is short, cost of manufacture is cheap, and the titanium dioxide for making gained has and the preferable compatibility of plastics system, it is easier to is scattered in plastics system.
Description
Technical field
The present invention relates to chemical field, in particular to a kind of pigment, titanium white compound powder, titanium dioxide and its preparation
Method.
Background technology
Titania powder (being commonly called as titanium dioxide) is optimal Chinese white in the world at present.Titanium dioxide not only physical chemistry
Property is sufficiently stable, also with the excellent optics such as high index of refraction, optimal covering power, optimal whiteness and brightness, electrical property
Can, therefore it is widely used in the fields such as coating, plastics, papermaking, ink, electronics, it is referred to as " industrial monosodium glutamate ".
At present either using sulfuric acid process or chlorination process production titanium dioxide crude product, although its product is pure
Degree is very high, but is not still used directly as Chinese white, but must be surface-treated by various post processing means.But
It is that some existing post processing means realize the surface treatment of titanium dioxide using the technological process of complexity, are still difficult to improve
Dispersiveness of the titanium dioxide in plastics system.
The content of the invention
The first aspect of the present invention, there is provided a kind of preparation method of titanium dioxide, it has the advantages of technological process is simple,
It can avoid causing the fabrication cycle of titanium dioxide to extend the problem of improving with cost of manufacture using complicated technology, and can also reduce
Environmental pollution and energy consumption.
A kind of the second aspect of the present invention, there is provided titanium dioxide.Foregoing titanium dioxide has excellent dispersiveness, Neng Gou
Preferable dispersion effect is produced in plastics system.
A kind of the third aspect of the present invention, there is provided pigment based on foregoing titanium dioxide.Described pigment has excellent
Color characteristics.
A kind of the fourth aspect of the present invention, there is provided titanium white compound powder based on plastics and foregoing titanium dioxide.Described
Titanium white compound powder has higher stability, and wherein titanium dioxide is sufficiently dispersed in plastics.
What the present invention was realized in：
A kind of preparation method of titanium dioxide includes：
Offer is mixed with the first organic phase and the first chamber of the first inorganic phase containing titanium dioxide, wherein, first has
Machine mutually includes organic grinding aid, and the first inorganic phase is in a manner of the titanium dioxide crude product for crushing long time without surface modification treatment
It is provided.
First chamber is crushed, and is mixed with Second Organic Phase, wherein, Second Organic Phase includes silane coupler and silicone oil
Compound.
A kind of titanium dioxide.Titanium dioxide is made by above-mentioned preparation method.
A kind of titanium white compound powder, it includes plastics, foregoing titanium dioxide.
A kind of pigment, its pigment include foregoing titanium dioxide.
The beneficial effect of the embodiment of the present invention：
The titanium dioxide preparation method proposed in the embodiment of the present invention eliminates mashing, complicated surface treatment, washing, filtering
With dry etc. technique, greatly reduce environmental pollution, reduce cost and energy consumption, and obtained titanium dioxide has in plastics system
Excellent pigment performance and dispersiveness.By adding the first organic phase, improve the mobility of titanium dioxide, reduce surface energy, and
Dry grinding crushing is carried out, obtains good shape of particle, particle diameter and particle diameter distribution is good, dry powder flow is good titanium dioxide, then
Again by adding Second Organic Phase, improve titanium dioxide and the compatibility of plastics system, improve its dispersiveness in plastics system,
And pass through the further strong titanium dioxide for crushing, obtaining having in plastics system excellent pigment performance and dispersiveness.
Embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the present invention.It is unreceipted specific in embodiment
Condition person, the condition suggested according to normal condition or manufacturer are carried out.Agents useful for same or the unreceipted production firm person of instrument, it is
The conventional products that can be obtained by commercially available purchase.
Pigment, titanium white compound powder, titanium dioxide below for the embodiment of the present invention and preparation method thereof are carried out specifically
It is bright：
It is known for inventor to be, it is generally the case that in order to improve the various performances of titanium dioxide --- such as weatherability, disperse
Property --- it is generally necessary to be post-processed to titanium dioxide.Wherein, post processing mainly includes：Crush, be beaten scattered, wet-milling, be inorganic
The process such as surface treatment, washing, dry, organic surface treatment, vapour powder and packaging.
In view of this, a kind of new titanium dioxide manufacture craft is inventors herein proposed, is shortening titanium dioxide making week to reach
Phase, while reducing manufacture difficulty, additionally it is possible to improve its dispersibility, the especially dispersiveness in plastics system.Utilize this
Invent the titanium dioxide prepared by the titanium dioxide manufacture craft proposed and unexpectedly obtain excellent pigment performance and in plastics
Good scattered and processing characteristics in system.
The preparation method of titanium dioxide comprises the following steps.
Step S01, provide and be mixed with the first organic phase and the first chamber of the first inorganic phase containing titanium dioxide, its
In, the first organic phase includes organic grinding aid, and the first inorganic phase is to crush the titanium dioxide of long time without surface modification treatment
The mode of crude product is provided.
Wherein, first chamber can be obtained using various modes known for inventor.For example, first chamber is
Using the first organic phase being separately provided by the product as a certain manufacture craft and the second inorganic phase by mixing and
Into.Or first chamber is made by way of the first inorganic phase is added during preparing the first organic phase.
Or first chamber is made by way of the first organic phase is added during preparing the first inorganic phase.
As it was previously stated, the first inorganic phase be in a manner of by the titanium dioxide crude product for crushing long time without surface modification treatment and
Obtain.Therefore, first chamber can (it is inorganic prepare first in the titanium dioxide crude product for crushing long time without surface modification treatment
Phase) when add the mode of the first organic phase and be prepared.
In some instances, the method for crushing the titanium dioxide crude product of long time without surface modification treatment is dry grinding.Specifically
It can be crushed by pulverizer, pulverizer therein may be selected to use Raymond mill or ball mill.It should be appreciated that two
The grinding mode of titanium oxide crude product is not limited to grind, and can also use other various means.
Corresponding to be, the organic grinding aid proposed in the present invention, which does not limit, crushes titania powder
Breaking method is grinding.Organic grinding aid reduces its surface energy primarily as the mobility for improving titanium dioxide powder
Material is provided.It will thus be appreciated that the first organic phase can be organic grinding aid, or other have lubrication, reduce table
The organic matter of face energy, such as high molecular polymer.In some instances, organic grinding aid includes but is not limited to alkanolamine, more
Any one in first alcohol, fatty alcohol, fatty acid ester or a variety of compositions, such as two kinds of compositions, or three kinds of composition,
Or four kinds of composition.Wherein, two kinds of composition can be the composition of alkanolamine and polyalcohol, or polyalcohol and aliphatic acid
The composition of ester.Three kinds of composition can be the composition of alkanolamine, polyalcohol, fatty alcohol, or polyalcohol, fatty alcohol, fat
The composition of fat acid esters, or the composition of alkanolamine, fatty alcohol, fatty acid ester.
Wherein, alkanolamine is such as can select diethanol amine, triethanolamine.Wherein, polyhydric alcohols such as can be second two
Alcohol, propane diols, butanediol, glycerine etc..
It is possible to further be defined to the content of the first organic phase.In some instances, when organic grinding aid quilt
Select for the first organic phase when, the addition of organic grinding aid be the weight of the titanium dioxide in the first inorganic phase 0.1~
1.0%, or 0.2~0.4, %, or 0.5~0.8%, or 0.7~1.0%.
Wherein, the first inorganic phase is the material for mainly containing titanium dioxide.In the first inorganic phase, titanium dioxide can be adopted
Obtained with various methods, and its crystal formation can be rutile-type or Detitanium-ore-type.Certainly, can also be in the first inorganic phase simultaneously
The titanium dioxide of titanium dioxide and Detitanium-ore-type with rutile-type.Further, the titanium dioxide in the first inorganic phase
Particle diameter can be 0.1~1.0 μm, or 0.2~0.5 μm, or 0.3~0.6 μm, or 0.8~1.0 μm.
First inorganic phase can be the acquisition product of some particular steps in existing titanium white production technique, then pass through
Certain processing is crossed to obtain.In the present invention, the first inorganic phase is to crush the titanium dioxide crude product of long time without surface modification treatment
Mode is provided.Titanium dioxide crude product refers to the titanium dioxide product without surface treatment.For example, prepare rutile titania in sulfuric acid process
In ore deposit type titanium dioxide, titanium ore obtains by crushing, acidolysis, sedimentation, crystallization, concentration, hydrolysis, bleaching, salt treatment and calcining
Titanium dioxide.In other words, titanium dioxide crude product is to make the product obtained by various proper methods (sulfuric acid process or chloridising), but
It is it without inorganic surface treatment, also without carrying out organic surface treatment.
Step S102, first chamber is crushed, and is mixed with Second Organic Phase, wherein, it is even that Second Organic Phase includes silane
Join the compound of agent and silicone oil.
It can make titanium dioxide in the first inorganic phase therein, especially the first inorganic phase by crushing first chamber
Particle diameter further reduce, so as to being also more easy to mix with Second Organic Phase, and then corresponding materialization occurs and acts on.Crush first group
The method of compound can use means, such as grind, and in inventive embodiments, breaking method is air-flow crushing.For example, using vapour
Powder machine carries out air-flow crushing to first chamber.
The mode that Second Organic Phase mixes with the first chamber after crushing, can be after Second Organic Phase is added into crushing
First chamber, or, by first chamber add crush after Second Organic Phase.In some examples of the present invention, it is
While air-flow crushing is carried out using steam powder machine (steam flow pulverizer) to first chamber, Second Organic Phase cocurrent is added.
In some instances, the hydrophilic lipophilic balance (HLB value) of used Second Organic Phase is 0~3, or, HLB
It is worth for 1, or 2, or 1.8.Further, it is preferable to the addition of Second Organic Phase is defined.For example, Second Organic Phase adds
Enter amount for 0.3~1.5% of the titania weight in first chamber, or 0.4~0.7%, or 0.8~1.0%, or 1.1
~1.4%.
By introducing Second Organic Phase in first chamber after being pulverized, can improve titanium dioxide dispersiveness, and with modeling
The compatibility of material, its dispersion effect in plastics system is improved, and there is more preferable diffusion in the blown state, together
When can also keep certain mechanical performance.
Based on foregoing manufacture craft, the invention also provides a kind of titanium dioxide, it passes through the preparation method system of titanium dioxide
Form.
In addition, the invention also provides a kind of titanium white compound powder, including plastics, above-mentioned titanium dioxide.Titanium dioxide is divided
Dissipate in the plastic.Wherein, plastics can be with various materials known for inventor, such as polyethylene (PE).
Further, the invention also provides a kind of pigment.Pigment includes above-mentioned titanium dioxide.In some instances, face
The content of titanium dioxide in material is 94~99wt%.
Pigment, titanium white compound powder, titanium dioxide of the present invention and preparation method thereof are made with reference to embodiments further
Detailed description.
Embodiment 1
1.5 tons of titanium dioxide crude products not being surface-treated that sulfuric acid process obtains are subjected to dry method with Raymond mill
Grind, Raymond mill major parameter is：Raymond mill power 25KW, axial separation device rotating speed 16Hz, circulating fan electric current 125A,
Circulating fan air quantity 23000m3/ h, obtains TiO 2 particles.
Embodiment 2
The 1.5 tons of titanium dioxide first products not being surface-treated obtained toward sulfuric acid process carry out dry method with Raymond mill
Grind, Raymond mill major parameter is：Raymond mill power 25KW, axial separation device rotating speed 16Hz, circulating fan electric current 125A,
Circulating fan air quantity 23000m3/h.The first organic phase of addition at the feed auger before titanium dioxide first product enters Raymond mill, first
Organic phase is that polymerized polyalcohol and fatty acid ester are 1 by weight:1 mixture, addition are titanium dioxide first product
0.1%, obtain TiO 2 particles.
Embodiment 3
The 1.5 tons of titanium dioxide first products not being surface-treated obtained toward sulfuric acid process carry out dry method with Raymond mill
Grind, Raymond mill major parameter is：Raymond mill power 25KW, axial separation device rotating speed 16Hz, circulating fan electric current 125A,
Circulating fan air quantity 23000m3/h.The first organic phase of addition at the feed auger before titanium dioxide first product enters Raymond mill, first
Organic phase is that polymerized polyalcohol and fatty acid ester are 1 by weight:1.05 mixture, addition are titanium dioxide first product
0.5%, obtain TiO 2 particles.
Embodiment 4
The 1.5 tons of titanium dioxide first products not being surface-treated obtained toward sulfuric acid process carry out dry method with Raymond mill
Grind, Raymond mill major parameter is：Raymond mill power 25KW, axial separation device rotating speed 16Hz, circulating fan electric current 125A,
Circulating fan air quantity 23000m3/h.The first organic phase of addition at the feed auger before titanium dioxide first product enters Raymond mill, first
Organic phase is that polymerized polyalcohol and fatty acid ester are 1 by weight:1.1 mixture, addition are titanium dioxide first product
1.0%, obtain TiO 2 particles.
Test example 1
The TiO 2 particles that example 1-4 is obtained have been carried out with particle diameter test and fluidity testing.Particle diameter test uses horse
The literary laser particle analyzer of that, and specifically investigated tri- parameters of D10, D50, D9.Fluidity testing 200mL graduated cylinder, is measured respectively
Take the sample of equivalent to be well mixed with PVC (polyvinyl chloride), add in fixed triangular funnel, open bottom flow export valve,
The complete required time of whole samples stream is determined, it is fewer to have flowed required time, illustrates that sample flow is better, the results are shown in Table 1.
The TiO 2 particles size distribution of table 1 and mobility
As can be known from Table 1, by introducing the first organic phase in titanium dioxide, its mobility can be improved, and with
The raising of the addition of organic matter, its mobility also obtains a certain degree of improvement.
Embodiment 5
The TiO 2 particles that embodiment 1 is obtained, air-flow crushing is carried out with steam powder machine, air-flow crushing major parameter is：
Main steam range pressure 1.8MPa, 320 DEG C of vapor (steam) temperature, steam pressure 0.8MPa is conveyed, crush steam pressure 1.2MPa, vapour compares admittedly
1.2:1, obtain titanium dioxide.
Embodiment 6
The TiO 2 particles that embodiment 2 is obtained, air-flow crushing is carried out with steam powder machine, air-flow crushing major parameter is：
Main steam range pressure 1.8MPa, 320 DEG C of vapor (steam) temperature, steam pressure 0.8MPa is conveyed, crush steam pressure 1.2MPa, vapour compares admittedly
1.2:1.While TiO 2 particles are conveyed into steam powder machine, Second Organic Phase is sent into steam powder machine, Second Organic Phase is
Silane coupler and macromolecule silicone oil are 5 by weight:1 compound, amphipathic property equilibrium valve (HLB) are 1, and addition is
The 0.3% of titanium dioxide, obtains titanium dioxide.
Embodiment 7
The TiO 2 particles that embodiment 3 is obtained, air-flow crushing is carried out with steam powder machine, air-flow crushing major parameter is：
Main steam range pressure 1.8MPa, 320 DEG C of vapor (steam) temperature, steam pressure 0.8MPa is conveyed, crush steam pressure 1.2MPa, vapour compares admittedly
1.2:1.While TiO 2 particles are conveyed into steam powder machine, Second Organic Phase is sent into steam powder machine, Second Organic Phase is
Silane coupler and macromolecule silicone oil are 5 by weight:1 compound, amphipathic property equilibrium valve (HLB) are 1, and addition is
The 1.0% of titanium dioxide, obtains titanium dioxide.
Embodiment 8
The TiO 2 particles that embodiment 4 is obtained, air-flow crushing is carried out with steam powder machine, air-flow crushing major parameter is：
Main steam range pressure 1.8MPa, 320 DEG C of vapor (steam) temperature, steam pressure 0.8MPa is conveyed, crush steam pressure 1.2MPa, vapour compares admittedly
1.2:1.While TiO 2 particles are conveyed into steam powder machine, Second Organic Phase is sent into steam powder machine, Second Organic Phase is
Silane coupler and macromolecule silicone oil are 5 by weight:1 compound, amphipathic property equilibrium valve (HLB) are 1, and addition is
The 1.5% of titanium dioxide, obtains titanium dioxide.
Test example 2
The titanium dioxide obtained to embodiment 5-8, the titanium white powder content identical plastic sheet (titanium containing plastics is made with injection machine
White powder composition), determine whiteness, covering power and reducing power, press filtration value determined with pressure value tester, same formula and
Test condition, press filtration value is lower, represent titanium dioxide in plastics system dispersiveness it is better, the results are shown in Table 2.
The performance of the titanium dioxide of table 2
As seen from the results in Table 2, by introducing Second Organic Phase, the dispersiveness of titanium dioxide in the plastic is improved, and
Also it is improved in the performance of whiteness, covering power, reducing power etc..Compared to being not added with the first organic phase and second organic
The titanium dioxide of phase, use titanium dioxide preparation method provided by the invention can keep its pigment performance (such as whiteness, covering power with
And reducing power) while, also with regard to having preferably dispersiveness and mobile performance.
Although illustrate and describing the present invention with specific embodiment, but will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
- A kind of 1. preparation method of titanium dioxide, it is characterised in that including：Offer is mixed with the first organic phase and the first chamber of the first inorganic phase containing titanium dioxide, wherein, described first has Machine mutually includes organic grinding aid, and first inorganic phase is to crush the titanium dioxide crude product of long time without surface modification treatment Mode is provided；Crush the first chamber, and mixed with Second Organic Phase, wherein, the Second Organic Phase include silane coupler and The compound of silicone oil.
- 2. the preparation method of titanium dioxide according to claim 1, it is characterised in that the step of the first chamber is being provided In rapid, the method for crushing the titanium dioxide crude product of long time without surface modification treatment is dry grinding；Or in the step of crushing first chamber, the method for crushing the first chamber is air-flow crushing.
- 3. the preparation method of titanium dioxide according to claim 1 or 2, it is characterised in that the titanium dioxide crude product passes through Sulfuric acid process or chloridising are made.
- 4. the preparation method of titanium dioxide according to claim 1, it is characterised in that the titanium dioxide in first inorganic phase The crystal formation of titanium includes anatase titanium dioxide and/or rutile-type.
- 5. the preparation method of titanium dioxide according to claim 1, it is characterised in that the organic grinding aid includes alkanol One or more in amine, polyalcohol, fatty alcohol, fatty acid ester.
- 6. the preparation method of titanium dioxide according to claim 1 or 5, it is characterised in that the organic grinding aid adds Enter amount for the 0.1~1.0% of the weight of the titanium dioxide in first inorganic phase, or 0.2~0.4, %, or 0.5~ 0.8%, or 0.7~1.0%.
- 7. the preparation method of titanium dioxide according to claim 1, it is characterised in that the hydrophilic and oleophilic of the Second Organic Phase Equilibrium valve is 0~3, and the addition of the Second Organic Phase is 0.3 of the titania weight in the first chamber ~1.5%, or 0.4~0.7%, or 0.8~1.0%, or 1.1~1.4%.
- 8. a kind of titanium dioxide, it is characterised in that according to the preparation method system of titanium dioxide according to any one of claims 1 to 7 Form.
- 9. a kind of titanium white compound powder, it is characterised in that including plastics, titanium dioxide as claimed in claim 8.
- 10. a kind of pigment, it is characterised in that the pigment includes titanium dioxide as claimed in claim 8.
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| CN (1) | CN107523097A (en) |
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| CN110013682A (en) * | 2019-05-05 | 2019-07-16 | 河北工业大学 | A kind of novel nano-titanium dioxide production procedure control device and method |
| CN115926494A (en) * | 2022-11-22 | 2023-04-07 | 中信钛业股份有限公司 | Production method for improving special titanium dioxide powder jet flow property of plastic section |
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| CN102295846A (en) * | 2010-06-28 | 2011-12-28 | 比亚迪股份有限公司 | Modified titanium white and preparation method thereof as well as automobile primer paint |
| CN104945958A (en) * | 2015-07-07 | 2015-09-30 | 吉林大学 | Composite titanium dioxide and preparation method thereof |
| CN106280572A (en) * | 2016-07-18 | 2017-01-04 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of method improving titanium dioxide dispersibility |
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| CN102295846A (en) * | 2010-06-28 | 2011-12-28 | 比亚迪股份有限公司 | Modified titanium white and preparation method thereof as well as automobile primer paint |
| CN104945958A (en) * | 2015-07-07 | 2015-09-30 | 吉林大学 | Composite titanium dioxide and preparation method thereof |
| CN106280572A (en) * | 2016-07-18 | 2017-01-04 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of method improving titanium dioxide dispersibility |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013682A (en) * | 2019-05-05 | 2019-07-16 | 河北工业大学 | A kind of novel nano-titanium dioxide production procedure control device and method |
| CN110013682B (en) * | 2019-05-05 | 2024-01-26 | 河北工业大学 | Novel nano titanium dioxide production flow control device and method |
| CN115926494A (en) * | 2022-11-22 | 2023-04-07 | 中信钛业股份有限公司 | Production method for improving special titanium dioxide powder jet flow property of plastic section |
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Application publication date: 20171229 |