CN109054453A - A kind of low oil absorption ferric titanium dioxide - Google Patents
A kind of low oil absorption ferric titanium dioxide Download PDFInfo
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- CN109054453A CN109054453A CN201811032589.8A CN201811032589A CN109054453A CN 109054453 A CN109054453 A CN 109054453A CN 201811032589 A CN201811032589 A CN 201811032589A CN 109054453 A CN109054453 A CN 109054453A
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- Prior art keywords
- titanium dioxide
- oil absorption
- low oil
- coating
- absorption ferric
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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
- C09C1/3653—Treatment with inorganic compounds
- C09C1/3661—Coating
-
- 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
- C09C3/06—Treatment with inorganic compounds
- C09C3/063—Coating
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The present invention relates to titanium dioxide preparation fields, more particularly to a kind of low oil absorption ferric titanium dioxide, obtained in the titanium white production by following coating method, by titanium dioxide base-material be prepared into Titanium dioxide slurry successively with sulfuric acid zirconium solution, aluminum sulfate solution, sodium hexametaphosphate solution and mix, wash and be dried to obtain the titanium dioxide.The present invention replaces dilute sulfuric acid to carry out coating in the preparation process of titanium dioxide, by using aluminum sulfate, and titanium dioxide product is in layered distribution, space is filled between reduction particle, to achieve the purpose that reduce oil absorption.
Description
Technical field
The present invention relates to field of titanium, and in particular to a kind of low oil absorption ferric titanium dioxide.
Background technique
Titanium dioxide is widely used in coating, paint, plastics, papermaking, cosmetics and medical industry.Wherein, coating institute
Accounting weight is maximum.Between 30 years, share of the titanium dioxide amount of consumption in total flow is painted, by 62% decline
To 50%, this is mainly due in plastic products industry and paper industry amount of titanium increase it is rapider.
As one of two most important types rutile type titanium white be excellent white pigment, there is high dispersive, height
Weatherability, high covering power, stability are splendid.It is widely used in inner-exterior wall emulsion paint, industrial coating, compound oil ink, soft version oil
Ink, laminated paper, plastic masterbatch, powdery paints etc..The main component titanium dioxide of rutile type titanium white is nontoxic, chemical property
It is very stable, it hardly reacts with other substances under room temperature, is a kind of amphoteric oxide of slant acidity.The whole world was to gold in recent years
Red stone-type titanium white demand persistently keeps growing at top speed, as global titanium dioxide market is constantly segmented, the appearance of a large amount of new products
Keep demand amplification bigger.The whole world titanium dioxide coming years, speedup demand year is maintained at 2%~3%, but as titanium dioxide is answered
Extension with from field to functional material, global titanium dioxide market supply will further be becoming tight.Method of production of titanium dioxide master at present
Have a sulfuric acid process and chloridising, and hydrochloric acid method in foreign countries at present also in the study on the industrialization stage.External from state, chloridising is about
60% is accounted for, sulfuric acid process accounts for about 40%, and what domestic chloridising formally produced at present only climbs bright and beautiful titanium one, Du Pont and A Si wound etc.
The titanium white chloride production line of company's proposed about 300,000 tons of production capacities at home.Producing Titanium Dioxide is with sulfuric acid process at home or mainly
It is main, account within 2012 the 99% of domestic production capacity, about 2,600,000 tons of output titanium white.Panxi Diqu is all with production of titanium dioxide by sulfuric acid method, production capacity
It is all using domestic and international traditional, comparative maturity sulfate process titanium dioxide production technology up to 25.5 ten thousand tons/a.
The production technology of sulfate process titanium dioxide is using acquisition titanium liquid (sulfuric acid oxygen after titanium ore or titanium slag acidolysis both at home and abroad at present
Titanium), metatitanic acid is obtained after hydrolysis, then TiO2 powder is obtained by high-temperature calcination, if it is production anatase titanium dioxide product, then
It can directly be dry grinded to the TiO2 powder and obtain commodity titanium white, if it is production rutile titanium dioxide product, then be needed to this
TiO2 powder, which is post-processed (mainly surface-coating processing), can just obtain commodity titanium white.
Pigment is a kind of coloured fine grained flour, general not soluble in water, can be scattered in various oil, solvent and resin
In equal media.Pigment using very extensive, various coloured products are all added to pigment substantially.Pigment has several important
Index, dispersibility, tinting strength, tinting power, covering power, oil absorption etc., it is required when wetting state that oil absorption indicates that 100 g pigment are fully achieved
Want the minimum flow of oil.Oil absorption is the embodiment of correlation between pigment powder and color spreading agent, it not only embodies pigment powder
Mixed proportion, wetness degree between color spreading agent, dispersion performance are also related to the formula of coating and a variety of property after film forming
Matter.
For fields such as solvent based coating, plastics, high oil absorption amount can be such that the application of base-material greatly increases, and it is existing to generate thickening etc.
As, therefore high oil absorption amount will cause many drawbacks in these fields.It is sub- can to reduce pigment consumption for the oil absorption for reducing titanium dioxide
The amount of sesame oil.
Summary of the invention
The purpose of the present invention is to provide a kind of low oil absorption ferric titanium dioxide, the preparation method of this titanium dioxide is carried out using aluminium salt
Coating, making titanium dioxide product is in layered distribution, fills space between reduction particle, to achieve the purpose that reduce oil absorption.
The present invention solves its technical problem and adopts the following technical solutions to realize.
A kind of low oil absorption ferric titanium dioxide, it is characterised in that obtained in titanium white production by following coating method:
By titanium dioxide base-material be prepared into Titanium dioxide slurry successively with sulfuric acid zirconium solution, aluminum sulfate solution, sodium hexametaphosphate solution with
And it mixes, wash and be dried to obtain the titanium dioxide.
Preferably, the PH of coating is 6.15-6.35.
Preferably, the additional amount of the aluminum sulfate is 0.5-1.2%, in terms of the quality of TiO2.
Preferably, the additional amount of the aluminum sulfate is 0.8 %, in terms of the quality of TiO2.
Preferably, Al2O3 content is 2.20-3.0% in the titanium dioxide after coating, in terms of the quality of TiO2.
Preferably, P2O5 content 0.3-0.4% in the titanium dioxide after coating, in terms of the quality of TiO2.
Preferably, total iron content≤30ppm in the titanium dioxide after coating.
The present invention proposes a kind of titanium dioxide, is made according to above-mentioned titanium white powder, preparation method thereof.Titanium dioxide obtained, which has, to be inhaled
Oil mass is low, the characteristics of.
The beneficial effects of the present invention are: the present invention replaces dilute sulphur in the preparation process of titanium dioxide, by using aluminum sulfate
Acid carries out coating, and titanium dioxide product is in layered distribution, space is filled between reduction particle, to achieve the purpose that reduce oil absorption.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention.
A kind of titanium dioxide is prepared by following coating method:
The heating of slurry: setting slurry heating temperature as 50 DEG C, opens shutoff valve before and after the valve pressure reducing valve of main steam range, beats
The bypass for opening the total drain valve of steam closes bypass valve after the condensed water in general pipeline empties, and opens dredging for coating slot steam pipework
Material is heated to 50 DEG C by water valve, the bypass valve of electric control valve, is then turned on temperature interlocking, is opened electric control valve, make slurry temperature
Degree is maintained at 50+3 DEG C, steam off bypass valve
2. certain flow velocity is arranged in instrument, it will be added in coating slot, added according to the six of processing compound calculation amount inclined solution
The angle of incidence is 20 minutes, and is stirred 20 minutes.
3. slurry PH is adjusted to 6.8-7.2 in 10 minutes with dilute sulfuric acid, stir 30 minutes.
4. flow velocity is set in instrument, will be according to the Zr(SO4 of processing compound calculation amount) 2 solution are added in coating slot,
It is 50 minutes that the time, which is added, is stirred 60 minutes.
5. PH is transferred to 8.0-8.5 in 15 minutes with diluted alkaline, and stir 30 minutes.
6. certain flow velocity is arranged in instrument.Coating slot will be added to according to the six of processing compound calculation amount inclined solution
In, it is 20 minutes that the time, which is added, and is stirred 20 minutes.
7. PH is transferred to 10.0-10.5 in 15 minutes with diluted alkaline, and stir homogenizing 30 minutes.
8. cocurrent: the NaAlO2 solution according to processing compound calculation amount is added into coating slot with certain flow velocity, simultaneously
Dilute H2SO4 is added, is carried out in the case where PH=10-10.5, it is 90 minutes that the time, which is added,.And it stirs 20 minutes.
PH is transferred to 6.5-7.0 9. dilute sulfuric acid is added, is added the time 20 minutes.Stirring curing 60 minutes.
10. adjusting PH=6.5-7.0 again.
It is as shown in table 1 to control each embodiment:
As it can be seen from table 1 this titanium dioxide has the characteristics that oil absorption is low.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of low oil absorption ferric titanium dioxide, it is characterised in that obtained in titanium white production by following coating method:
By titanium dioxide base-material be prepared into Titanium dioxide slurry successively with sulfuric acid zirconium solution, aluminum sulfate solution, sodium hexametaphosphate solution with
And it mixes, wash and be dried to obtain the titanium dioxide.
2. a kind of low oil absorption ferric titanium dioxide according to claim 1, which is characterized in that the PH of coating is 6.15-6.35.
3. a kind of low oil absorption ferric titanium dioxide according to claim 1, which is characterized in that the additional amount of the aluminum sulfate is
0.5-1.2%, in terms of the quality of TiO2.
4. a kind of low oil absorption ferric titanium dioxide according to claim 1, which is characterized in that the additional amount of the aluminum sulfate is
0.8 %, in terms of the quality of TiO2.
5. a kind of low oil absorption ferric titanium dioxide according to claim 1, which is characterized in that Al2O3 in the titanium dioxide after coating
Content is 2.20-3.0%, in terms of the quality of TiO2.
6. a kind of low oil absorption ferric titanium dioxide according to claim 1, which is characterized in that P2O5 contains in the titanium dioxide after coating
0.3-0.4% is measured, in terms of the quality of TiO2.
7. a kind of low oil absorption ferric titanium dioxide according to claim 1, which is characterized in that total iron contains in the titanium dioxide after coating
Amount≤30ppm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811032589.8A CN109054453A (en) | 2018-09-05 | 2018-09-05 | A kind of low oil absorption ferric titanium dioxide |
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| CN201811032589.8A CN109054453A (en) | 2018-09-05 | 2018-09-05 | A kind of low oil absorption ferric titanium dioxide |
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| CN109054453A true CN109054453A (en) | 2018-12-21 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924980A (en) * | 2012-11-05 | 2013-02-13 | 昆明理工大学 | Surface modified titanium dioxide particles and preparation method thereof |
| CN103131212A (en) * | 2013-02-28 | 2013-06-05 | 江苏镇钛化工有限公司 | Preparation method of special titanium dioxide for oily system |
| CN103555001A (en) * | 2013-10-31 | 2014-02-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for coating titanium dioxide |
| CN103613957A (en) * | 2013-11-12 | 2014-03-05 | 漯河兴茂钛业股份有限公司 | Preparation method of novel zirconium-aluminum-coated titanium dioxide |
| CN103756369A (en) * | 2014-01-15 | 2014-04-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Zirconium-aluminum composite inorganic surface treatment method of titanium dioxide |
| CN104877393A (en) * | 2015-04-08 | 2015-09-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium dioxide with low oil absorption and preparation method of titanium dioxide |
| CN105017813A (en) * | 2015-07-01 | 2015-11-04 | 攀枝花学院 | Rutile titanium dioxide production method |
-
2018
- 2018-09-05 CN CN201811032589.8A patent/CN109054453A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924980A (en) * | 2012-11-05 | 2013-02-13 | 昆明理工大学 | Surface modified titanium dioxide particles and preparation method thereof |
| CN103131212A (en) * | 2013-02-28 | 2013-06-05 | 江苏镇钛化工有限公司 | Preparation method of special titanium dioxide for oily system |
| CN103555001A (en) * | 2013-10-31 | 2014-02-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for coating titanium dioxide |
| CN103613957A (en) * | 2013-11-12 | 2014-03-05 | 漯河兴茂钛业股份有限公司 | Preparation method of novel zirconium-aluminum-coated titanium dioxide |
| CN103756369A (en) * | 2014-01-15 | 2014-04-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Zirconium-aluminum composite inorganic surface treatment method of titanium dioxide |
| CN104877393A (en) * | 2015-04-08 | 2015-09-02 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium dioxide with low oil absorption and preparation method of titanium dioxide |
| CN105017813A (en) * | 2015-07-01 | 2015-11-04 | 攀枝花学院 | Rutile titanium dioxide production method |
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Application publication date: 20181221 |
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