CN103694745A - Inorganic-organic surface treatment method for rutile titanium dioxide - Google Patents
Inorganic-organic surface treatment method for rutile titanium dioxide Download PDFInfo
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- CN103694745A CN103694745A CN201410016695.2A CN201410016695A CN103694745A CN 103694745 A CN103694745 A CN 103694745A CN 201410016695 A CN201410016695 A CN 201410016695A CN 103694745 A CN103694745 A CN 103694745A
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Abstract
The invention relates to an inorganic-organic surface treatment method for rutile titanium dioxide. The method is characterized by comprising the following steps: (1) regulating the concentration of sanded titanium dioxide slurry to be 250-450g/L, adding 0.2-0.6% of sodium hexametaphosphate, uniformly stirring, and heating the slurry to be 70-90 DEG C; (2) adding an inorganic film coating agent to regulate the slurry to be neutral or alkaline; (3) adding 0.3-2% of emulsified organic silicon film coating agent, stirring for 30-60 minutes, and carrying out filter-press washing, expansion drying and gas stream milling, so as to obtain a finished product.
Description
Technical field
The present invention relates to the surface treatment method of titanium dioxide, particularly a kind of inorganic organic surface-treated method of Rutile type Titanium Dioxide.
Background technology
Titanium dioxide surface treatment method be most important in titanium dioxide last handling process be also a most complicated link, surface-treated quality is directly connected to the product performance of titanium dioxide, very large in the application impact in the fields such as coating, plastics, ink, papermaking on titanium dioxide.
At present, aborning, generally first titanium dioxide is carried out to inorganic coating, after completing, coating carries out press filtration, washing, dry, vapour powder, when vapour powder, carrying out organic surface treatment, is generally now to adopt the processing mode dripping at regular time and quantity to add organic coated dose, and this method exists certain deficiency, cannot guarantee organic coated dose cannot be in titanium dioxide coated with uniform, and dosage is also inhomogeneous.
In Chinese patent 200610102302 and 200610102318, introduced and first carried out the inorganic modified organically-modified method of carrying out again, in the method, first on titanium dioxide surface, be coated one deck silicon and one deck aluminium, then after washing, slurrying adds organic coated dose again, then washes post-drying.Twice washing of whole process need, twice slurrying, increased production cost.
Chinese patent 2008100455105 discloses organic coating method for titanium dioxide for producing color master batch, the method is that the sulfuric acid process Rutile type Titanium Dioxide after inorganic coating is added in the mixture of organosilicon and water and makes slurry, then this slurry is dried, through comminution by gas stream, obtain titanium dioxide product.The method is also to utilize organosilicon as organic coated dose, although need not twice washing, its utilization be the Rutile type Titanium Dioxide after inorganic coating, dry, comminution by gas stream.
Summary of the invention
Problem to be solved by this invention is to provide a kind of inorganic organic surface-treated method of Rutile type Titanium Dioxide.
Technical scheme of the present invention is:
The inorganic organic surface-treated method of Rutile type Titanium Dioxide, comprises the following steps successively:
1) adjusting the good titanium dioxide pulp density of sand milling is 250-450g/L, adds 0.2 ~ 0.6% Sodium hexametaphosphate 99, stirs, and heating slip is to 70-90 ℃;
2) add inorganic coating agent, regulate slurry to neutral or alkaline;
3) add organosilicon emulsion, add-on is generally 0.3%-2%, stirs 30 ~ 60min, then after filter-press water-washing, expansion drying, comminution by gas stream, obtains finished product.
Further, described inorganic coating agent is basic zirconium chloride, water glass, Tai-Ace S 150, sodium metaaluminate etc.
Further, the organosilicon in described organosilicon emulsion is polymethyl siloxane or silane coupling agent, and its content in emulsion is 0.3-2%.
Further, described organosilicon coating agent emulsification is: emulsifying agent is added in water, after stirring, then adds organosilicon, stir, the add-on of emulsifying agent is organosilyl 0.2-0.6%.
Further, described emulsifying agent is OP-10.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention is by after organosilicon emulsification, make it easily be scattered in water, thereby realize inorganic-organic surface treatment uniformity, and organosilicon is difficult for being run off by washing, avoided the process of twice washing, twice slurrying, can guarantee that each titanium dioxide particle surface can be evenly coated, be conducive to improve the dispersiveness of product, improve product performance.
2, the present invention is simple to operate, and reaction conditions is gentle, and technical process is short, easily realizes industrialization; Reduced simultaneously and in vapour powder process, dripped organic coated dose of operation, improved vapour powder efficiency.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
Prepare organosilicon emulsion: emulsifying agent is added in water, after stirring, then adds organosilicon, stir, the add-on of emulsifier op-10 is organosilyl 0.2-0.6%, silicone content 0.3-2% in the organosilicon emulsion finally obtaining.
Execute example 2
1. adjusting the good titanium dioxide pulp density of sand milling is 250g/L, adds 0.2% Sodium hexametaphosphate 99, stir, and heating slip to 70 ℃.The addition of all substances is all with TiO
2mass Calculation.
2. inorganic processing: add the basic zirconium chloride of 0.5-1.0%, then regulate slip pH to 7 with alkali; The sodium metaaluminate that adds again 2.0-3.0% adds hydrochloric acid simultaneously, controls slip and regulates pH to 6.5-7.0, stirs homogenizing 30min.
3. organic process: 0.3% polymethyl siloxane organic coated dose (after emulsification) is joined in the slip that inorganic coating completes, organic coated dose of add-on is generally 0.3%-2%, stir after 30min, after filter-press water-washing, expansion drying, comminution by gas stream, be finished product.
Embodiment 3
1. adjusting the good titanium dioxide pulp density of sand milling is 350g/L, adds 0.4% Sodium hexametaphosphate 99, stir, and heating slip to 80 ℃.The addition of all substances is all with TiO
2mass Calculation.
2. inorganic processing: add the water glass of 1.0-2.5%, then regulate slip pH to 7.0-7.5 with sulfuric acid; The sodium metaaluminate that adds again 2.0-3.0% adds hydrochloric acid simultaneously, controls slip and regulates pH to 6.5-7.0, stirs homogenizing 30min.
3. organic process: 1% polymethyl siloxane organic coated dose (after emulsification) is joined in the slip that inorganic coating completes, organic coated dose of add-on is generally 0.3%-2%, stir after 40min, after filter-press water-washing, expansion drying, comminution by gas stream, be finished product.
Embodiment 4
1. adjusting the good titanium dioxide pulp density of sand milling is 450g/L, adds 0.6% Sodium hexametaphosphate 99, stir, and heating slip to 90 ℃.The addition of all substances is all with TiO
2mass Calculation.
2. inorganic processing: add the water glass of 1.0-2.5%, then regulate slip pH to 7.0-7.5 with hydrochloric acid; The Tai-Ace S 150 that adds again 2.0-3.0% adds caustic soda simultaneously, controls slip and regulates pH to 6.5-7.0, stirs homogenizing 30min.
3. organic process: 2% silane coupling agent organic coated dose (after emulsification) is joined in the slip that inorganic coating completes, and organic coated dose of add-on is generally 0.3%-2%, stirs after 60min, is finished product after filter-press water-washing, expansion drying, comminution by gas stream.
Embodiment 5
1, get the slip after inorganic coating, add organosilicon after washing; 2, after being washed, the slip after inorganic coating add organosilicon to wash; Then 1 and 2 materials that obtain are dried at 100 ℃ to C, SiO before and after contrast washing in material
2content, obtain data as shown in the table.
Claims (5)
1. the inorganic organic surface-treated method of Rutile type Titanium Dioxide, is characterized in that, comprises the following steps successively:
1) adjusting the good titanium dioxide pulp density of sand milling is 250-450g/L, adds 0.2 ~ 0.6% Sodium hexametaphosphate 99, stirs, and heating slip is to 70-90 ℃;
2) add inorganic coating agent, regulate slurry to neutral or alkaline;
3) add organosilicon emulsion, add-on is 0.3%-2%, stirs 30 ~ 60min left and right, then after filter-press water-washing, expansion drying, comminution by gas stream, obtains finished product.
2. the inorganic organic surface-treated method of a kind of Rutile type Titanium Dioxide according to claim 1, is characterized in that, described inorganic coating agent is basic zirconium chloride, water glass, Tai-Ace S 150, sodium metaaluminate etc.
3. the inorganic organic surface-treated method of a kind of Rutile type Titanium Dioxide according to claim 1, is characterized in that, the organosilicon in described organosilicon emulsion is polymethyl siloxane or silane coupling agent, and its content in emulsion is 0.3-2%.
4. the inorganic organic surface-treated method of a kind of Rutile type Titanium Dioxide according to claim 1, it is characterized in that, described organosilicon coating agent emulsification is: emulsifying agent is added in water, after stirring, add again organosilicon, stir, the add-on of emulsifying agent is organosilyl 0.2-0.6%.
5. the inorganic organic surface-treated method of a kind of Rutile type Titanium Dioxide according to claim 4, is characterized in that, described emulsifying agent is OP-10.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387808A (en) * | 2014-10-31 | 2015-03-04 | 天津市欣德泰铁粉有限公司 | Preparation method of jointly-coated titanium dioxide powder |
| 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 |
| CN107656024A (en) * | 2017-11-13 | 2018-02-02 | 龙蟒佰利联集团股份有限公司 | A kind of assay method of titanium dioxide surface organosilicon stearic acid organic agent covering amount |
| CN107955415A (en) * | 2017-12-11 | 2018-04-24 | 安徽金星钛白（集团）有限公司 | Lightfastness titanium dioxide and preparation method thereof, application |
| CN108727875A (en) * | 2018-07-10 | 2018-11-02 | 四川龙蟒钛业股份有限公司 | A kind of high preparation method for covering chloridising color masterbatch grade titanium dioxide |
| CN108864771A (en) * | 2018-09-05 | 2018-11-23 | 襄阳龙蟒钛业有限公司 | It is a kind of for producing the coating agent of high glaze titanium dioxide |
| CN108997790A (en) * | 2018-09-05 | 2018-12-14 | 襄阳龙蟒钛业有限公司 | A kind of high glaze titanium white production method |
| CN109021618A (en) * | 2017-06-12 | 2018-12-18 | 江苏特丰新材料科技有限公司 | A kind of organic surface modifying method of polyester synthesis titanium dioxide |
| CN109111764A (en) * | 2018-08-30 | 2019-01-01 | 浙江天泰新材料科技有限公司 | Nano-powder titanium dioxide coating new material and preparation method thereof |
| CN110003687A (en) * | 2019-04-26 | 2019-07-12 | 龙蟒佰利联集团股份有限公司 | Preparation method of special titanium dioxide for high-gloss outdoor coating |
| CN110157219A (en) * | 2019-06-26 | 2019-08-23 | 河南佰利联新材料有限公司 | A kind of preparation method of high-performance Masterbatch special titanium pigment |
| CN110484026A (en) * | 2019-08-26 | 2019-11-22 | 中东金润新材料有限公司 | High dispersive chemical-fiber-grade titanium dioxide production technology |
| CN110684374A (en) * | 2019-10-29 | 2020-01-14 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for organically modifying titanium dioxide |
| CN115029019A (en) * | 2022-07-12 | 2022-09-09 | 龙佰禄丰钛业有限公司 | Adding process of organic coating agent in titanium dioxide production |
| CN115850998A (en) * | 2022-11-30 | 2023-03-28 | 攀钢集团研究院有限公司 | Method for improving brightness of titanium dioxide |
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| CN101891973A (en) * | 2010-07-14 | 2010-11-24 | 无锡豪普钛业有限公司 | Special titanium white powder pigment for masterbatch and preparation method thereof |
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- 2014-01-15 CN CN201410016695.2A patent/CN103694745A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101891973A (en) * | 2010-07-14 | 2010-11-24 | 无锡豪普钛业有限公司 | Special titanium white powder pigment for masterbatch and preparation method thereof |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104387808A (en) * | 2014-10-31 | 2015-03-04 | 天津市欣德泰铁粉有限公司 | Preparation method of jointly-coated titanium dioxide powder |
| 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 |
| CN109021618A (en) * | 2017-06-12 | 2018-12-18 | 江苏特丰新材料科技有限公司 | A kind of organic surface modifying method of polyester synthesis titanium dioxide |
| CN107656024A (en) * | 2017-11-13 | 2018-02-02 | 龙蟒佰利联集团股份有限公司 | A kind of assay method of titanium dioxide surface organosilicon stearic acid organic agent covering amount |
| CN107656024B (en) * | 2017-11-13 | 2019-11-22 | 龙蟒佰利联集团股份有限公司 | A kind of measuring method of titanium dioxide surface organosilicon stearic acid organic agent covering amount |
| CN107955415A (en) * | 2017-12-11 | 2018-04-24 | 安徽金星钛白（集团）有限公司 | Lightfastness titanium dioxide and preparation method thereof, application |
| CN108727875A (en) * | 2018-07-10 | 2018-11-02 | 四川龙蟒钛业股份有限公司 | A kind of high preparation method for covering chloridising color masterbatch grade titanium dioxide |
| CN109111764A (en) * | 2018-08-30 | 2019-01-01 | 浙江天泰新材料科技有限公司 | Nano-powder titanium dioxide coating new material and preparation method thereof |
| CN108997790A (en) * | 2018-09-05 | 2018-12-14 | 襄阳龙蟒钛业有限公司 | A kind of high glaze titanium white production method |
| CN108864771A (en) * | 2018-09-05 | 2018-11-23 | 襄阳龙蟒钛业有限公司 | It is a kind of for producing the coating agent of high glaze titanium dioxide |
| CN110003687A (en) * | 2019-04-26 | 2019-07-12 | 龙蟒佰利联集团股份有限公司 | Preparation method of special titanium dioxide for high-gloss outdoor coating |
| CN110003687B (en) * | 2019-04-26 | 2021-06-25 | 龙蟒佰利联集团股份有限公司 | Preparation method of special titanium dioxide for high-gloss outdoor coating |
| CN110157219A (en) * | 2019-06-26 | 2019-08-23 | 河南佰利联新材料有限公司 | A kind of preparation method of high-performance Masterbatch special titanium pigment |
| CN110484026A (en) * | 2019-08-26 | 2019-11-22 | 中东金润新材料有限公司 | High dispersive chemical-fiber-grade titanium dioxide production technology |
| CN110484026B (en) * | 2019-08-26 | 2020-07-14 | 中东金润新材料有限公司 | Production process of chemical fiber grade titanium dioxide |
| CN110684374A (en) * | 2019-10-29 | 2020-01-14 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for organically modifying titanium dioxide |
| CN115029019A (en) * | 2022-07-12 | 2022-09-09 | 龙佰禄丰钛业有限公司 | Adding process of organic coating agent in titanium dioxide production |
| CN115850998A (en) * | 2022-11-30 | 2023-03-28 | 攀钢集团研究院有限公司 | Method for improving brightness of titanium dioxide |
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Application publication date: 20140402 |