CN103756367A - Preparation method of novel coated anatase titanium dioxide - Google Patents
Preparation method of novel coated anatase titanium dioxide Download PDFInfo
- Publication number
- CN103756367A CN103756367A CN201310557367.9A CN201310557367A CN103756367A CN 103756367 A CN103756367 A CN 103756367A CN 201310557367 A CN201310557367 A CN 201310557367A CN 103756367 A CN103756367 A CN 103756367A
- Authority
- CN
- China
- Prior art keywords
- solution
- soluble aluminum
- titanium dioxide
- 60min
- salt brine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention relates to a preparation method of a novel coated anatase titanium dioxide. The method has few steps, simple operation, low energy consumption, high production efficiency, and short covering cycle. The prepared anatase titanium dioxide has high weather resistance, whiteness and dispersion, and application range extending to the outdoor field.
Description
Technical field
The invention belongs to anatase thpe white powder surface inorganic processing technology field, say more specifically anatase thpe white powder is carried out to inorganic coating, thereby improve its weathering resistance and other application performance.
Background technology
Titanium dioxide, as a kind of very important white pigment, has a wide range of applications in fields such as coating, plastics, ink.Not surface treated titanium dioxide has photochemical activity, organic base-material around can degrading under atmospheric action and under ultraviolet irradiation, make it produce the phenomenons such as xanthochromia, loss of gloss, efflorescence, seriously reduced the pigment performance of titanium dioxide and limited its use range.
Anatase thpe white powder is substantially processed and is directly used without inorganic coating at present, and its application performance and range of application are subject to certain restrictions, can not be for the outdoor application that weathering resistance is had higher requirements.Only have through suitable surface treatment, at the coated one deck inorganic oxide film in titanium dioxide granule surface, thereby it is not directly contacted with organic medium, just can make its photolytic activity, weathering resistance and dispersiveness improve.
In order to improve weathering resistance and other pigment performance of anatase thpe white powder, broadened application scope and field, improve its using value and added value of product, makes it from ordinary titanium powder, be converted into high quality titanium dioxide, must carry out the coated processing of inorganic surfaces to it.
Summary of the invention
The invention provides a kind of preparation method of sharp titanium coating, the method step is few, simple to operate, and energy consumption is low, and production efficiency is high, and the coated cycle is short.The anatase thpe white powder of preparation has higher weathering resistance, whiteness and dispersiveness, and range of application can be extended to outdoor field.
Technical scheme of the present invention is:
A preparation method for coating anatase thpe white powder, is characterized in that comprising the following steps:
Step 1, adopts the anatase titanium dioxide without any processing, it is mixed with to finely disseminated slurry under dispersion agent effect, and the add-on of dispersion agent is with SiO
2count the 0.1%-0.4% of titanium dioxide quality;
Step 2, is warmed up to 50-90 ℃ by dispersion disposed slurry, and keeps this temperature;
Step 3 by the slurry in step 2, evenly adds aqueous silicate solution in 10-60min, and the add-on of aqueous silicate solution is with SiO
2count the 0.2%-1.0% of titanium dioxide quality, slaking 10-60min, temperature remains on 50-90 ℃;
Step 4 adds the first soluble aluminum salt brine solution in 10-60min, regulates slurry PH2.0-4.0, records the consumption of soluble aluminum salt brine solution, and the add-on of soluble aluminum salts solution is with Al
2o
3meter is about the 0.1%-0.4% of titanium dioxide quality, slaking 10-60min, and temperature remains on 50-90 ℃;
Step 5 adds the sodium metaaluminate aqueous solution in 10-60min, and the add-on of sodium aluminate solution is with Al
2o
3count the 1.0%-3.0% of titanium dioxide quality, slaking 10-60min, temperature remains on 50-90 ℃;
Step 6 adds remaining the second soluble aluminum salt brine solution in 10-60min, and the add-on of soluble aluminum salts solution is with Al
2o
3count the 1.5%-4.0% of titanium dioxide quality, slaking 10-60min, temperature remains on 50-90 ℃;
Step 7, adds the NaOH aqueous solution, regulates slurry PH7.0-8.0, slaking 60-180min;
Step 8, carries out filtration washing to filtrate resistivity with 40-70 ℃ of de-salted water and is less than 100 μ s/m, and material drying, pulverization process, make TiO 2 pigment sample.
Described dispersion agent is water glass.
Described aqueous silicate solution is selected from sodium silicate aqueous solution or potassium silicate aqueous solution.
Described the first soluble aluminum salt brine solution and the second soluble aluminum salt brine solution are identical soluble aluminum salt brine solution, are selected from one or more in aluminum chloride, Tai-Ace S 150, aluminum nitrate etc., and concentration is with Al
2o
3count 80-120g/L.
Described the first soluble aluminum salt brine solution and the second soluble aluminum salt brine solution are different soluble aluminum salt brine solutions, are selected from one or more in aluminum chloride, Tai-Ace S 150, aluminum nitrate etc., and concentration is with Al
2o
3count 80-120g/L.
Beneficial effect:
TiO in the anatase titanium dioxide first product that the present invention adopts
2more than 98%, guarantee the pigment performances such as basic opacifying power of product; By to TiO
2the adjustment of first product slurry PH, effectively controls the front pulp particle of coating and exists with precursor, guarantees the even of coated Si-Al, and this layer of fine and close hydrated aluminum oxide film is conducive to improve TiO 2 pigment optical property and weather resistance.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
1, anatase thpe white powder is made to the slurry of 300g/L, with sodium silicate solution, regulated slurry pH9.0-10.0, record sodium silicate solution consumption, wherein SiO
2be about 0.2% of titanium dioxide quality, sodium silicate solution
Concentration with SiO
2count 100g/L, dispersed with stirring 20min.
2, the slurry after disperseing is warmed up to 60 ℃, and makes whole coating process maintain this temperature.
3, in 40min, evenly add remaining sodium silicate aqueous solution, the add-on of sodium silicate aqueous solution is with SiO
2count 1.0% of titanium dioxide quality, slaking 30min.
4, in 40min, add soluble aluminum salt brine solution, regulate slurry PH2.0-3.5, write down the consumption of dissolubility aluminum saline solution, wherein the dosage of soluble aluminum salts solution is with Al
2o
3meter, slaking 30min.
5, at 40min, evenly add with A1
2o
3count TiO
21.5% sodium aluminate solution of quality, slaking 30min.
6, in 40min, evenly add remaining soluble aluminum salts solution, wherein the dosage of soluble aluminum salts solution accounts for TiO
22% of quality, slaking 30min.
7, in 40min, evenly add 20% the NaOH aqueous solution, regulate slurry PH7.2-7.6, insulation slaking 120min.
8, with 50 ℃ of de-salted waters, carry out filtration washing to filtrate specific conductivity and be less than 100 μ s/m, dry 24h at 120 ℃, and with using high Shearing pulverizer pulverization process, obtains sharp titanium sample after coating.
Embodiment 2
1, anatase thpe white powder is made to the slurry of 300g/L, with sodium silicate solution, regulated slurry pH9.0-10, record sodium silicate solution consumption, wherein SiO
2be about 0.2% of titanium dioxide quality, the concentration of sodium silicate solution is with SiO
2count 100g/L, dispersed with stirring 20min.
2, the slurry after disperseing is warmed up to 60 ℃, and makes whole coating process maintain this temperature.
3, in 40min, evenly add remaining sodium silicate aqueous solution, the add-on of sodium silicate aqueous solution is with SiO
2count 0.8% of titanium dioxide quality, slaking 30min.
4, in 40min, add soluble aluminum salt brine solution, regulate slurry PH2.0-3.5, write down the consumption of aluminum sulfate aqueous solution, wherein the dosage of soluble aluminum salts solution is with Al
2o
3meter, slaking 30min.
5, following operation is with the 5-8 step operation in embodiment 1.
Embodiment 3
1, anatase thpe white powder is made to the slurry of 300g/L, with sodium silicate solution, regulated slurry pH9.0-10, record sodium silicate solution consumption, wherein SiO
2be about 0.2% of titanium dioxide quality, the concentration of sodium silicate solution is with SiO
2count 100g/L, dispersed with stirring 20min.
2, the slurry after disperseing is warmed up to respectively to 60 ℃, and makes whole coating process maintain this temperature.
3, in 40min, evenly add remaining sodium silicate aqueous solution, the add-on of sodium silicate aqueous solution is with SiO
2count 0.8% of titanium dioxide quality, slaking 30min.
4, in 40min, add soluble aluminum salt brine solution, regulate slurry PH3.0-3.5, record the consumption of soluble aluminum salt brine solution, wherein the dosage of soluble aluminum salts solution is with A1
2o
3meter, slaking 60min.
5, at 40min, evenly add with A1
2o
3count TiO
21.5% sodium aluminate solution of quality, slaking 60min.
6, in 40min, evenly add remaining soluble aluminum salts solution, wherein the dosage of soluble aluminum salts solution is TiO
22% of quality, slaking 30min.
7, in 40min, evenly add 20% the NaOH aqueous solution, regulate slurry PH7.2-7.6, insulation slaking 120min.
8, with 50 ℃ of de-salted waters, carry out filtration washing to filtrate specific conductivity and be less than 100 μ s/m, dry 24h at 120 ℃, and with using high Shearing pulverizer pulverization process, obtains sharp titanium sample after coating.
Water glass described in embodiment 1-3 can adopt one or more replacements in Sodium hexametaphosphate 99, hexa metaphosphoric acid potassium, trolamine, sodium hydroxide and tetramethylolmethane etc.
Provide the sharp titanium coated product of embodiment of the present invention test result below
As can be seen from Table 1, the coated front own SiO of anatase thpe white powder
2and Al
2o
3content is respectively 0.04% and 0.01%.Coated Si O
2after, deposition is between 0.85% to 1.03, and after coated aluminum oxide, deposition reaches 4.0%, coated rear sample surfaces SiO
2and Al
2o
3content and feeding quantity basically identical, occur that a small amount of deviation may be that silicon, al deposition rate of polymerization difference cause.Before coated, L value and the whiteness of anatase thpe white powder are respectively 97.90 and 93.61, and after coated, its L value is respectively 98.56 and 98.63, and whiteness is respectively 95.67 and 95.68, and brightness and whiteness are all greatly increased.
The detected result of embodiment of the present invention anatase thpe white powder coating
Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (5)
1. a preparation method for coating anatase thpe white powder, is characterized in that comprising the following steps:
Step 1, adopts the anatase titanium dioxide without any processing, it is mixed with to finely disseminated slurry under dispersion agent effect, and the add-on of dispersion agent is with SiO
2count the 0.1%-0.4% of titanium dioxide quality;
Step 2, is warmed up to 50-90 ℃ by dispersion disposed slurry, and keeps this temperature;
Step 3 by the slurry in step 2, evenly adds aqueous silicate solution in 10-60min, and the add-on of aqueous silicate solution is with SiO
2count the 0.2%-1.0% of titanium dioxide quality, slaking 10-60min, temperature remains on 50-90 ℃;
Step 4 adds the first soluble aluminum salt brine solution in 10-60min, regulates slurry PH2.0-4.0, records the consumption of soluble aluminum salt brine solution, and the add-on of soluble aluminum salts solution is with Al
2o
3meter is about the 0.1%-0.4% of titanium dioxide quality, slaking 10-60min, and temperature remains on 50-90 ℃;
Step 5 adds the sodium metaaluminate aqueous solution in 10-60min, and the add-on of sodium aluminate solution is with Al
2o
3count the 1.0%-3.0% of titanium dioxide quality, slaking 10-60min, temperature remains on 50-90 ℃;
Step 6 adds remaining the second soluble aluminum salt brine solution in 10-60min, and the add-on of soluble aluminum salts solution is with Al
2o
3count the 1.5%-4.0% of titanium dioxide quality, slaking 10-60min, temperature remains on 50-90 ℃;
Step 7, adds the NaOH aqueous solution, regulates slurry PH7.0-8.0, slaking 60-180min;
Step 8, carries out filtration washing to filtrate resistivity with 40-70 ℃ of de-salted water and is less than 100 μ s/m, and material drying, pulverization process, make TiO 2 pigment sample.
2. the preparation method of a kind of novel coated anatase thpe white powder according to claim 1, is characterized in that described dispersion agent is water glass.
3. the preparation method of a kind of novel coated anatase thpe white powder according to claim 1, is characterized in that, described aqueous silicate solution is selected from sodium silicate aqueous solution or potassium silicate aqueous solution.
4. the preparation method of a kind of novel coated anatase thpe white powder according to claim 1, it is characterized in that, described the first soluble aluminum salt brine solution and the second soluble aluminum salt brine solution are identical soluble aluminum salt brine solution, be selected from one or more in aluminum chloride, Tai-Ace S 150, aluminum nitrate etc., concentration is with Al
2o
3count 80-120g/L.
5. the preparation method of a kind of novel coated anatase thpe white powder according to claim 1, it is characterized in that, described the first soluble aluminum salt brine solution and the second soluble aluminum salt brine solution are different soluble aluminum salt brine solutions, be selected from one or more in aluminum chloride, Tai-Ace S 150, aluminum nitrate etc., concentration is with Al
2o
3count 80-120g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557367.9A CN103756367A (en) | 2013-11-12 | 2013-11-12 | Preparation method of novel coated anatase titanium dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557367.9A CN103756367A (en) | 2013-11-12 | 2013-11-12 | Preparation method of novel coated anatase titanium dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103756367A true CN103756367A (en) | 2014-04-30 |
Family
ID=50523700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310557367.9A Pending CN103756367A (en) | 2013-11-12 | 2013-11-12 | Preparation method of novel coated anatase titanium dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103756367A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965660A (en) * | 2014-05-20 | 2014-08-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Industrial enveloping method and industrial enveloping system of titanium dioxide |
| CN104179066A (en) * | 2014-07-22 | 2014-12-03 | 四川龙蟒钛业股份有限公司 | Method for producing rutile titanium white powder applied to decorative laminated paper |
| CN104387809A (en) * | 2014-10-31 | 2015-03-04 | 天津市欣德泰铁粉有限公司 | Inorganic enveloping method for rutile titanium dioxide |
| CN105062150A (en) * | 2015-08-11 | 2015-11-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Treatment method capable of improving weather resistance of titanium dioxide |
| CN105482508A (en) * | 2015-12-15 | 2016-04-13 | 常熟市环虹化工颜料厂 | Method for preparing high-performance rutile titanium dioxide pigment |
| CN107057407A (en) * | 2016-12-23 | 2017-08-18 | 宁波新福钛白粉有限公司 | A kind of preparation method of water paint TiO 2 pigment |
| CN107353673A (en) * | 2017-06-12 | 2017-11-17 | 江苏特丰新材料科技有限公司 | Titanium dioxide that surface is modified and preparation method thereof |
| CN108997788A (en) * | 2018-08-27 | 2018-12-14 | 攀钢集团重庆钛业有限公司 | The preparation method of high covering power titanium dioxide |
| CN109679411A (en) * | 2018-12-27 | 2019-04-26 | 常熟世名化工科技有限公司 | A kind of preparation method coating titanium dioxide pigment water-borne dispersions |
| CN109989265A (en) * | 2018-07-04 | 2019-07-09 | 河北惠尔信新材料有限公司 | A kind of the inorganic coating treatment process and delustering agent of polyamide fibre delustering agent |
| CN113861786A (en) * | 2021-11-24 | 2021-12-31 | 海宁德易遮阳科技有限公司 | Preparation method of coating slurry capable of adsorbing, removing formaldehyde and purifying air |
| CN116285425A (en) * | 2022-12-15 | 2023-06-23 | 宜宾天原海丰和泰有限公司 | Titanium dioxide silicon-aluminum coating method |
| CN116285425B (en) * | 2022-12-15 | 2024-05-31 | 宜宾天原海丰和泰有限公司 | Titanium dioxide silicon-aluminum coating method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079885A (en) * | 2010-12-25 | 2011-06-01 | 锦州钛业有限公司 | Method for preparing multifunctional titanium dioxide pigment with chlorination method |
-
2013
- 2013-11-12 CN CN201310557367.9A patent/CN103756367A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079885A (en) * | 2010-12-25 | 2011-06-01 | 锦州钛业有限公司 | Method for preparing multifunctional titanium dioxide pigment with chlorination method |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965660B (en) * | 2014-05-20 | 2015-11-11 | 攀钢集团攀枝花钢铁研究院有限公司 | The industrial coating method of titanium dioxide and industrial coating system |
| CN103965660A (en) * | 2014-05-20 | 2014-08-06 | 攀钢集团攀枝花钢铁研究院有限公司 | Industrial enveloping method and industrial enveloping system of titanium dioxide |
| CN104179066A (en) * | 2014-07-22 | 2014-12-03 | 四川龙蟒钛业股份有限公司 | Method for producing rutile titanium white powder applied to decorative laminated paper |
| CN104387809A (en) * | 2014-10-31 | 2015-03-04 | 天津市欣德泰铁粉有限公司 | Inorganic enveloping method for rutile titanium dioxide |
| CN105062150A (en) * | 2015-08-11 | 2015-11-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Treatment method capable of improving weather resistance of titanium dioxide |
| CN105482508A (en) * | 2015-12-15 | 2016-04-13 | 常熟市环虹化工颜料厂 | Method for preparing high-performance rutile titanium dioxide pigment |
| CN107057407A (en) * | 2016-12-23 | 2017-08-18 | 宁波新福钛白粉有限公司 | A kind of preparation method of water paint TiO 2 pigment |
| CN107353673A (en) * | 2017-06-12 | 2017-11-17 | 江苏特丰新材料科技有限公司 | Titanium dioxide that surface is modified and preparation method thereof |
| CN109989265A (en) * | 2018-07-04 | 2019-07-09 | 河北惠尔信新材料有限公司 | A kind of the inorganic coating treatment process and delustering agent of polyamide fibre delustering agent |
| CN109989265B (en) * | 2018-07-04 | 2022-04-12 | 河北惠尔信新材料有限公司 | Inorganic coating treatment process of chinlon delustering agent and delustering agent |
| CN108997788A (en) * | 2018-08-27 | 2018-12-14 | 攀钢集团重庆钛业有限公司 | The preparation method of high covering power titanium dioxide |
| CN109679411B (en) * | 2018-12-27 | 2021-07-09 | 常熟世名化工科技有限公司 | Preparation method of titanium dioxide pigment-coated aqueous dispersion |
| CN109679411A (en) * | 2018-12-27 | 2019-04-26 | 常熟世名化工科技有限公司 | A kind of preparation method coating titanium dioxide pigment water-borne dispersions |
| CN113861786A (en) * | 2021-11-24 | 2021-12-31 | 海宁德易遮阳科技有限公司 | Preparation method of coating slurry capable of adsorbing, removing formaldehyde and purifying air |
| CN116285425A (en) * | 2022-12-15 | 2023-06-23 | 宜宾天原海丰和泰有限公司 | Titanium dioxide silicon-aluminum coating method |
| CN116285425B (en) * | 2022-12-15 | 2024-05-31 | 宜宾天原海丰和泰有限公司 | Titanium dioxide silicon-aluminum coating method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103756367A (en) | Preparation method of novel coated anatase titanium dioxide | |
| CN101429348B (en) | Process for producing nano-titanium dioxide-zinc oxide composite powder | |
| CN100545216C (en) | A kind of preparation method of high weathering resistance titanium dioxide | |
| CN104119701B (en) | A kind of preparation method of inorganic composite white pigment of replacement of titanium dioxide at high proportion | |
| CN103613957A (en) | Preparation method of novel zirconium-aluminum-coated titanium dioxide | |
| CN103709792B (en) | Preparation method for titanium dioxide pigment | |
| CN102051073A (en) | Surface-modified titanium white powder and preparation method thereof | |
| CN102924979B (en) | Method for preparing inorganic and organic coating titanium dioxide | |
| CN102924980B (en) | Surface modified titanium dioxide particles and preparation method thereof | |
| CN108997789B (en) | Composite modified titanium dioxide and preparation method thereof | |
| CN101058679A (en) | Method of preparing sericite ultraviolet radiation screening agent | |
| CN103555001A (en) | Method for coating titanium dioxide | |
| CN110964346B (en) | Preparation method of universal titanium dioxide water slurry | |
| CN102531023A (en) | Method for preparing nanometer flaky yttrium oxide powder | |
| WO2010078821A1 (en) | Method for preparing subsphaeroidal barium sulfate by sulfuric acid process and its use in copper foil substrate | |
| CN102516824A (en) | Preparation method of color master batch titanium dioxide | |
| CN103318950B (en) | Preparation method of indium tin oxide nano powder | |
| CN108128798B (en) | Simple preparation method of flaky nano zinc oxide sun-screening agent | |
| CN107353673A (en) | Titanium dioxide that surface is modified and preparation method thereof | |
| CN105502481A (en) | Preparation method for anatase titanium dioxide | |
| CN104591287B (en) | A kind of nanometer Zinc Tungstate raw powder's production technology of anti-microbial property better than wolframic acid silver | |
| CN111393876B (en) | Preparation method of high-covering and high-gloss titanium dioxide | |
| CN103803633A (en) | Preparation method of zinc oxide/titanium dioxide nanometer composite material | |
| CN112876878A (en) | Ultrahigh-whiteness pigment-grade core-shell structure type nano calcium carbonate and preparation method thereof | |
| CN104649309B (en) | A kind of method of utilizing forulic acid regulation and control to prepare calcium carbonate crystal particle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140430 |