CN106118139A - A kind of composite titanium dioxide and preparation method thereof - Google Patents
A kind of composite titanium dioxide and preparation method thereof Download PDFInfo
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- CN106118139A CN106118139A CN201610343057.0A CN201610343057A CN106118139A CN 106118139 A CN106118139 A CN 106118139A CN 201610343057 A CN201610343057 A CN 201610343057A CN 106118139 A CN106118139 A CN 106118139A
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- titanium dioxide
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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
- C09C1/3692—Combinations of treatments provided for in groups C09C1/3615 - C09C1/3684
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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
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
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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
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/65—Chroma (C*)
Abstract
The invention discloses a kind of composite titanium dioxide and preparation method thereof, described composite titanium dioxide includes following raw material components in parts by weight: 25～35 parts of modified titaniums, 50～60 parts of calcined kaolins, 10～20 parts of montmorillonites, 1.5～4 parts of silane couplers, wherein, the preparation method of modified titanium is: is immersed at a certain temperature by titanium dioxide in the mixed solution of sodium tripolyphosphate and sodium chloride and hydrochloric acid composition, thus obtains modified titanium.Calcined kaolin is ground, making beating, modified mixes with modified titanium, wash, be dried, strong magnetic treatment, obtain finished product.The production technology of the present invention is simple, and energy consumption is low, without adding hyper-dispersant during wet ball grinding, does not also have powder reuniting phenomenon, and the whiteness of the composite titanium dioxide obtained is more than 95, and covering power is at 32g/m2Above.
Description
Technical field
The invention belongs to composite titanium dioxide preparation field, relate to a kind of composite titanium dioxide and preparation method thereof.
Background technology
Titanium dioxide is with crystalline titania as main component, and crystalline titania makes far above the refractive index of other inorganic matter
Titanium dioxide has the strongest covering power thus becomes optimal Chinese white, but the resource consumption of titanium dioxide is too much, cost
Excessive, there are many producers to use titanium dioxide succedaneum and titanium dioxide to be prepared as composite titanium dioxide at present, in order to ensure composite granule,
Here performance and cost that titanium dioxide succedaneum refers to have titanium dioxide are lower than titanium dioxide, it is possible to partly or entirely substitute titanium white
The inorganic powder material of pruinescence application, upper market is all use dry method work due to pursuit low cost and the big one's duty of efficiency
Skill, but although dry process is simple, but covered effect is undesirable, and whiteness is not high enough, covering power is inadequate, uses wet ball grinding work
Skill, it is possible that anti-crushing phenomenon, causes powder reuniting phenomenon, eventually causes that whiteness is not high enough, covering power is inadequate.
CN 105017812A discloses a kind of composite titanium dioxide, is made up of following parts by weight ingredient: 20～40 parts of titanium whites
Powder, 60～80 parts of calcined kaolins, 1～3 part of silane coupler；By calcined kaolin grind and with titanium dioxide, silane coupler
Mixing making beating make solution that concentration is 20-25%, wash, be dried, strong magnetic treatment, obtain finished product.The production technology of this invention
Simply, energy consumption is low, adds hyper-dispersant, prevent powder body from agglomeration occur, affect last product during wet ball grinding
Whiteness and covering power, cause the poor performance of product.
Thus, it is necessary to exploitation one had both had good whiteness, had again the strongest covering power, being combined of favorable dispersibility
Titanium dioxide.
Summary of the invention
For the above-mentioned problems in the prior art, it is an object of the invention to provide a kind of composite titanium dioxide and
Preparation method, described composite titanium dioxide uses wet ball grinding technique to prepare, without adding hyper-dispersant in preparation process, also will not
Powder reuniting phenomenon occurs, and, there is the highest whiteness and covering power, its whiteness is more than 95, and covering power is at 32g/m2With
On.
For reaching above-mentioned purpose, the present invention by the following technical solutions:
First aspect, the present invention provides a kind of composite titanium dioxide, and described composite titanium dioxide includes following former in parts by weight
Material composition:
Described modified titanium is prepared via a method which to obtain: titanium dioxide immerses the water of sodium tripolyphosphate and sodium chloride
Solution, with the mixed solution of hydrochloric acid composition, obtains modified titanium.
As the optimal technical scheme of composite titanium dioxide of the present invention, described composite titanium dioxide include in parts by weight with
Lower raw material components:
Preferably, in the preparation method of described modified titanium, in the aqueous solution of described sodium tripolyphosphate and sodium chloride, three
The concentration of polyphosphate sodium is (300～600) g/L, can be such as 300g/L, 350g/L, 400g/L, 450g/L, 500g/L,
550g/L or 600g/L etc., preferably 400g/L.
Preferably, in the preparation method of described modified titanium, in the aqueous solution of described sodium tripolyphosphate and sodium chloride, chlorine
The concentration changing sodium is (50～200) g/L, such as, can be 50g/L, 80g/L, 100g/L, 150g/L, 175g/L or 200g/L etc.,
It is preferably 100g/L.
Preferably, in the preparation method of described modified titanium, the concentration of described hydrochloric acid is 1.5～3.5mol/L, such as
Can be 1.5mol/L, 1.8mol/L, 2mol/L, 2.5mol/L, 3mol/L or 3.5mol/L etc..
Preferably, in the preparation method of described modified titanium, described sodium tripolyphosphate and the aqueous solution of sodium chloride and salt
The volume ratio of acid is (10～15): 1, such as, can be 10:1,12:1,13:1 or 15:1 etc..
Preferably, in the preparation method of described modified titanium, the temperature of described immersion is 50～60 DEG C, such as, can be 50
DEG C, 52 DEG C, 55 DEG C, 58 DEG C or 60 DEG C etc..
Preferably, in the preparation method of described modified titanium, the time of described immersion is 1.5～8h, such as, can be
1.5h, 2.5h, 3.5h, 4h or 5h etc., preferably 5h.
Second aspect, the present invention provides the preparation method of composite titanium dioxide as described in relation to the first aspect, and described method includes
Following steps:
1) by kaolin calcined, then the calcined kaolin obtained is ground, after grinding, carries out mashing step process,
Obtain the serosity that concentration is 25%；
2) by silane coupler and step 1) in serosity mix；
3) by step 2) in the mixed liquor that obtains carry out washing, filter, drying steps, obtain modified calcined kaolin
Powder；
4) being mixed with modified titanium by modified calcined kaolin powder, make solution, solution concentration is 18%；
5) to step 4) in mixed liquor carry out wet ball grinding PROCESS FOR TREATMENT, and add ultra-dispersed in mechanical milling process
Agent, the amount of hyper-dispersant is step 4) in Solute mass 0.8%；
6) wash the mixed liquor after wet ball grinding technique, drying steps processes.
Further, the calcining heat of described calcined kaolin is 750～950 DEG C.
Further, described step 5) in hyper-dispersant be polyester type ultra-dispersant agent.
Further, described step 5) in time of wet ball grinding technique be 2～4h, ball milling speed is 130～150r/
min。
Further, described step 6) in washing step by solution washing in neutrality.
Further, described step 6) in be additionally provided with strong magnetic sieve after drying steps and process step, by dried powder body
Send in strong magnetic sieve and process.
Compared with prior art, there is advantages that
The method of the invention production technology is simple, and energy consumption is low, without adding hyper-dispersant during wet ball grinding, also
Do not have powder reuniting phenomenon, and, whiteness and the covering power of last product composite titanium dioxide are the best, and its whiteness is 95
Above, covering power is at 32g/m2Above.
Detailed description of the invention
Technical scheme is further illustrated below by detailed description of the invention.
Embodiment 1
A kind of composite titanium dioxide, described composite titanium dioxide includes following raw material components in parts by weight:
Wherein, described modified titanium is prepared by the following method and obtains: titanium dioxide immerses the sodium tripolyphosphate of 50 DEG C
Mixed solution (aqueous solution of sodium tripolyphosphate and sodium chloride and the volume ratio of hydrochloric acid formed with hydrochloric acid with the aqueous solution of sodium chloride
For 10:1, the concentration of sodium tripolyphosphate is 300g/L, and the concentration of sodium chloride is 50g/L) in 8h, obtain modified titanium.
The preparation process of composite titanium dioxide is as follows:
1) by Kaolin in 750 DEG C of calcinings, then the calcined kaolin obtained is ground, pulls an oar after grinding
Step process, obtains the serosity that concentration is 25%；
2) by sulfurous acid and step 1) in serosity mix；
3) by step 2) in the mixed liquor that obtains carry out washing, filter, drying steps, obtain modified calcined kaolin
Powder；
4) being mixed with modified titanium by modified calcined kaolin powder, make solution, solution concentration is 18%；
5) to step 4) in mixed liquor with the rotating speed wet ball grinding 4h of 130r/min；
6) wash the mixed liquor after wet ball grinding technique, drying steps processes, and obtains composite titanium dioxide.
After tested, the favorable dispersibility of the composite titanium dioxide that the present embodiment obtains, whiteness is 96, and covering power is 34g/m2。
Embodiment 2
A kind of composite titanium dioxide, described composite titanium dioxide includes following raw material components in parts by weight:
Wherein, described modified titanium is prepared by the following method and obtains: titanium dioxide immerses the sodium tripolyphosphate of 60 DEG C
Mixed solution (aqueous solution of sodium tripolyphosphate and sodium chloride and the volume ratio of hydrochloric acid formed with hydrochloric acid with the aqueous solution of sodium chloride
For 15:1, the concentration of sodium tripolyphosphate is 600g/L, and the concentration of sodium chloride is 200g/L) in 1.5h, obtain modified titanium.
The preparation process of composite titanium dioxide is as follows:
1) by Kaolin in 950 DEG C of calcinings, then the calcined kaolin obtained is ground, after grinding, carries out making beating step
Rapid process, obtains the serosity that concentration is 25%；
2) by sulfurous acid and step 1) in serosity mix；
3) by step 2) in the mixed liquor that obtains carry out washing, filter, drying steps, obtain modified calcined kaolin
Powder；
4) being mixed with modified titanium by modified calcined kaolin powder, make solution, solution concentration is 18%；
5) to step 4) in mixed liquor with the rotating speed wet ball grinding 2h of 150r/min；
6) wash the mixed liquor after wet ball grinding technique, drying steps processes, and obtains composite titanium dioxide.
After tested, the favorable dispersibility of the composite titanium dioxide that the present embodiment obtains, whiteness is 95, and covering power is 33g/m2。
Embodiment 3
A kind of composite titanium dioxide, described composite titanium dioxide includes following raw material components in parts by weight:
Wherein, described modified titanium is prepared by the following method and obtains: titanium dioxide immerses the sodium tripolyphosphate of 55 DEG C
Mixed solution (aqueous solution of sodium tripolyphosphate and sodium chloride and the volume ratio of hydrochloric acid formed with hydrochloric acid with the aqueous solution of sodium chloride
For 12:1, the concentration of sodium tripolyphosphate is 400g/L, and the concentration of sodium chloride is 100g/L) in 5h, obtain modified titanium.
The preparation process of composite titanium dioxide is as follows:
1) by Kaolin in 850 DEG C of calcinings, then the calcined kaolin obtained is ground, after grinding, carries out making beating step
Rapid process, obtains the serosity that concentration is 25%；
2) by sulfurous acid and step 1) in serosity mix；
3) by step 2) in the mixed liquor that obtains carry out washing, filter, drying steps, obtain modified calcined kaolin
Powder；
4) being mixed with modified titanium by modified calcined kaolin powder, make solution, solution concentration is 18%；
5) to step 4) in mixed liquor with the rotating speed wet ball grinding 3h of 140r/min；
6) wash the mixed liquor after wet ball grinding technique, drying steps processes, and obtains composite titanium dioxide.
After tested, the favorable dispersibility of the composite titanium dioxide that the present embodiment obtains, whiteness is 98, and covering power is 38g/m2。
Comparative example 1
In addition to modified titanium is replaced with titanium dioxide, kind and the content of other each components are same as in Example 1.
After tested, the bad dispersibility of the composite titanium dioxide that this comparative example obtains, there is agglomeration, whiteness is 94, covering power
For 23g/m2。
Applicant states, the present invention illustrates the method detailed of the present invention by above-described embodiment, but the present invention not office
It is limited to above-mentioned method detailed, does not i.e. mean that the present invention has to rely on above-mentioned method detailed and could implement.Art
Technical staff is it will be clearly understood that any improvement in the present invention, and the equivalence of raw material each to product of the present invention is replaced and auxiliary element
Interpolation, concrete way choice etc., within the scope of all falling within protection scope of the present invention and disclosure.
Claims (10)
1. a composite titanium dioxide, it is characterised in that described composite titanium dioxide includes following raw material components in parts by weight:
Described modified titanium is prepared via a method which to obtain: titanium dioxide immerses the aqueous solution of sodium tripolyphosphate and sodium chloride
With the mixed solution of hydrochloric acid composition, obtain modified titanium.
Composite titanium dioxide the most according to claim 1, it is characterised in that described composite titanium dioxide include in parts by weight with
Lower raw material components:
Composite titanium dioxide the most according to claim 1 and 2, it is characterised in that in the preparation method of described modified titanium,
In the aqueous solution of described sodium tripolyphosphate and sodium chloride, the concentration of sodium tripolyphosphate is (300～600) g/L, preferably 400g/
L；
Preferably, in the preparation method of described modified titanium, in the aqueous solution of described sodium tripolyphosphate and sodium chloride, sodium chloride
Concentration be (50～200) g/L, preferably 100g/L.
4. according to the composite titanium dioxide described in any one of claim 1-3, it is characterised in that the preparation side of described modified titanium
In method, the concentration of described hydrochloric acid is 1.5～3.5mol/L；
Preferably, in the preparation method of described modified titanium, the aqueous solution of described sodium tripolyphosphate and sodium chloride and hydrochloric acid
Volume ratio is (10～15): 1.
5. according to the composite titanium dioxide described in any one of claim 1-4, it is characterised in that the preparation side of described modified titanium
In method, the temperature of described immersion is 50～60 DEG C；
Preferably, in the preparation method of described modified titanium, the time of described immersion is 1.5～8h, preferably 5h.
6. the preparation method of the composite titanium dioxide as described in any one of claim 1-5, it is characterised in that described method include with
Lower step:
1) calcined kaolin is ground, after grinding, carries out mashing step process, obtain the serosity that concentration is 25%；
2) by silane coupler and step 1) in serosity mix；
3) by step 2) in the mixed liquor that obtains carry out washing, filter, drying steps, obtain modified calcined kaolin powder；
4) being mixed with modified titanium by modified calcined kaolin powder, make solution, solution concentration is 18%；
5) to step 4) in mixed liquor carry out wet ball grinding PROCESS FOR TREATMENT；
6) wash the mixed liquor after wet ball grinding technique, drying steps processes.
The preparation method of composite titanium dioxide the most according to claim 6, it is characterised in that the calcining of described calcined kaolin
Temperature is 750～950 DEG C.
The preparation method of composite titanium dioxide the most according to claim 6, it is characterised in that described step 5) in wet method ball
The time of grinding process is 2～4h, and ball milling speed is 130～150r/min.
The preparation method of composite titanium dioxide the most according to claim 6, it is characterised in that described step 6) in purge step
Suddenly by solution washing in neutrality.
The preparation method of composite titanium dioxide the most according to claim 6, it is characterised in that described step 6) in be dried step
It is additionally provided with strong magnetic sieve after rapid and processes step, dried powder body is sent in strong magnetic sieve and process.
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Cited By (3)
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| CN108245317A (en) * | 2018-01-10 | 2018-07-06 | 江西宜信堂医疗科技有限公司 | A kind of infrared cough relieving paste and preparation method thereof |
| CN111484756A (en) * | 2020-05-22 | 2020-08-04 | 中信钛业股份有限公司 | Method for improving dispersion stability of alumina-coated titanium dioxide |
| CN115322591A (en) * | 2022-07-26 | 2022-11-11 | 江苏镇钛化工有限公司 | High-weather-resistance titanium dioxide for automobile panel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245317A (en) * | 2018-01-10 | 2018-07-06 | 江西宜信堂医疗科技有限公司 | A kind of infrared cough relieving paste and preparation method thereof |
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| CN111484756A (en) * | 2020-05-22 | 2020-08-04 | 中信钛业股份有限公司 | Method for improving dispersion stability of alumina-coated titanium dioxide |
| CN111484756B (en) * | 2020-05-22 | 2022-02-08 | 中信钛业股份有限公司 | Method for improving dispersion stability of alumina-coated titanium dioxide |
| CN115322591A (en) * | 2022-07-26 | 2022-11-11 | 江苏镇钛化工有限公司 | High-weather-resistance titanium dioxide for automobile panel |
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Effective date of registration: 20190723 Address after: 518105 Biguiyuan Factory Building, No. 2 8th Road, Yangyong Industrial Zone, Shapu Community, Songgang Street, Baoan District, Shenzhen City, Guangdong Province, 5 101 Patentee after: Shenzhen three industry color technology Co., Ltd. Address before: 214000 No. 11 Xingzhou Road, Qianzhou Town, Huishan District, Suzhou City, Jiangsu Province (Jiabang Electric Power Pipeline Plant) Patentee before: Wuxi Jiabang Electric Power Pipeline Factory |