TW200740927A - Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture - Google Patents
Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufactureInfo
- Publication number
- TW200740927A TW200740927A TW096103160A TW96103160A TW200740927A TW 200740927 A TW200740927 A TW 200740927A TW 096103160 A TW096103160 A TW 096103160A TW 96103160 A TW96103160 A TW 96103160A TW 200740927 A TW200740927 A TW 200740927A
- Authority
- TW
- Taiwan
- Prior art keywords
- doped
- titanium dioxide
- pigment particles
- skin
- doping
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title abstract 6
- 229910052681 coesite Inorganic materials 0.000 title abstract 4
- 229910052906 cristobalite Inorganic materials 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 239000000377 silicon dioxide Substances 0.000 title abstract 4
- 235000012239 silicon dioxide Nutrition 0.000 title abstract 4
- 229910052682 stishovite Inorganic materials 0.000 title abstract 4
- 229910052905 tridymite Inorganic materials 0.000 title abstract 4
- 239000002245 particle Substances 0.000 title abstract 3
- 239000004408 titanium dioxide Substances 0.000 title abstract 3
- 239000000049 pigment Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910052758 niobium Inorganic materials 0.000 abstract 3
- 229910052796 boron Inorganic materials 0.000 abstract 2
- 229910052793 cadmium Inorganic materials 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 229910052748 manganese Inorganic materials 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 229910052718 tin Inorganic materials 0.000 abstract 2
- 229910052726 zirconium Inorganic materials 0.000 abstract 2
- 229910052787 antimony Inorganic materials 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- 229910052790 beryllium Inorganic materials 0.000 abstract 1
- 229910052797 bismuth Inorganic materials 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 229910052738 indium Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Cosmetics (AREA)
Abstract
The invention relates to titanium dioxide pigment particles which have improved photo stability, their surface being coated with a dense SiO2 skin that is doped with at least one doping element. The SiO2 skin is characterized in that the doping with the at least one doping element reduces the energy level densities in the valence band and/or in the conduction band in the vicinity of the band gap or that additional energy levels in the band gap are produced. The doped dense SiO2 skin is applied using known wet-chemical methods or is applied in the gas phase to the surface of the titanium dioxide particles. Particularly suitable doping elements are Sn, Sb, In, Ge, Y, Nb, F, Mn, Cu, Mo, Cd, Ce, W and Bi. The following known doping elements AI, B, Ge, Mg, Nb, P, Zr for the gas phase method and Ag, AI, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Mg, Mn, Ni, Nb, Sn, Sr, Ti, Zn, Zr for the wet-chemical method are excluded from the invention.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006004345 | 2006-01-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200740927A true TW200740927A (en) | 2007-11-01 |
| TWI475079B TWI475079B (en) | 2015-03-01 |
Family
ID=40332787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW096103160A TWI475079B (en) | 2006-01-30 | 2007-01-29 | Titandioxid-pigmentpartikel mit dotierter dichter sio2-huelle und verfahren zur herstellung |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN101360794B (en) |
| SA (3) | SA111320424B1 (en) |
| TW (1) | TWI475079B (en) |
| ZA (1) | ZA200805246B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165052B (en) * | 2017-12-14 | 2020-11-24 | 华南理工大学 | A kind of ceramic pigment with near-infrared reflection function and preparation method thereof |
| CN108033486B (en) * | 2017-12-15 | 2019-11-05 | 河北麦森钛白粉有限公司 | A kind of preparation method of conductive mesoporous nano titanium dioxide |
| CN108767241A (en) * | 2018-06-15 | 2018-11-06 | 中国民航大学 | Magnesium adulterates Si oxide, preparation method and the application in secondary lithium battery |
| CN110106570A (en) * | 2019-06-13 | 2019-08-09 | 南京市雨花台区绿宝工业设计服务中心 | A kind of preparation method of composite titania material |
| CN114746497A (en) * | 2019-11-29 | 2022-07-12 | 默克专利股份有限公司 | Particulate fillers, their preparation and use |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2913419A (en) * | 1956-04-18 | 1959-11-17 | Du Pont | Chemical process and composition |
| GB2108097B (en) * | 1981-10-30 | 1985-01-03 | Tioxide Group Plc | Improved pigments and their preparation |
| CA1304995C (en) * | 1988-04-15 | 1992-07-14 | John R. Brand | Process for producing durable titanium dioxide pigments |
| US5922120A (en) * | 1997-12-23 | 1999-07-13 | E. I. Du Pont De Nemours And Company | Process for producing coated TiO2 pigment using cooxidation to provide hydrous oxide coatings |
| DE102004037271A1 (en) * | 2004-07-31 | 2006-03-23 | Kronos International, Inc. | Weathering stable titanium dioxide pigment and process for its preparation |
-
2007
- 2007-01-28 SA SA111320424A patent/SA111320424B1/en unknown
- 2007-01-28 SA SA07280012A patent/SA07280012B1/en unknown
- 2007-01-29 TW TW096103160A patent/TWI475079B/en not_active IP Right Cessation
- 2007-01-30 CN CN2007800016898A patent/CN101360794B/en not_active Expired - Fee Related
-
2008
- 2008-06-17 ZA ZA200805246A patent/ZA200805246B/en unknown
-
2011
- 2011-04-09 SA SA111320359A patent/SA111320359B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN101360794B (en) | 2012-06-13 |
| SA111320424B1 (en) | 2014-05-11 |
| SA07280012B1 (en) | 2011-08-20 |
| TWI475079B (en) | 2015-03-01 |
| ZA200805246B (en) | 2009-02-25 |
| SA111320359B1 (en) | 2014-06-25 |
| CN101360794A (en) | 2009-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |