MD3977C2 - Process for nanodispersed titanium dioxide obtaining - Google Patents
Process for nanodispersed titanium dioxide obtaining Download PDFInfo
- Publication number
- MD3977C2 MD3977C2 MDA20080278A MD20080278A MD3977C2 MD 3977 C2 MD3977 C2 MD 3977C2 MD A20080278 A MDA20080278 A MD A20080278A MD 20080278 A MD20080278 A MD 20080278A MD 3977 C2 MD3977 C2 MD 3977C2
- Authority
- MD
- Moldova
- Prior art keywords
- titanium dioxide
- nanodispersed
- dioxide obtaining
- current
- obtaining
- Prior art date
Links
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 239000004408 titanium dioxide Substances 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 239000000017 hydrogel Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 230000001699 photocatalysis Effects 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000003643 water by type Substances 0.000 abstract 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention relates to a process for nanodispersed titanium dioxide obtaining that may be used in processes for photocatalytic treatment and neutralization of natural and sewage waters, as pigment, as well as catalyst in different branches of industry.The process is carried out by electrochemical dissolution of metal titanium in alkaline NaOH and NaCl solution in the following concentration, in g/L:at the temperature of 70…90°C under the action of the periodic current of industrial frequency with inverse controlled pulse, at the anodic current density of 1.0…3.0 A/cm2 and the ratio to the cathodic current of 1: (0.1…0.5), with subsequent washing of the formed hydrogel and thermal treatment at 400…450°C during 1.0…1.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20080278A MD3977C2 (en) | 2008-11-11 | 2008-11-11 | Process for nanodispersed titanium dioxide obtaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDA20080278A MD3977C2 (en) | 2008-11-11 | 2008-11-11 | Process for nanodispersed titanium dioxide obtaining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD3977B1 MD3977B1 (en) | 2009-11-30 |
| MD3977C2 true MD3977C2 (en) | 2010-06-30 |
Family
ID=43568826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDA20080278A MD3977C2 (en) | 2008-11-11 | 2008-11-11 | Process for nanodispersed titanium dioxide obtaining |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD3977C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD227Z (en) * | 2009-09-04 | 2011-01-31 | Государственный Университет Молд0 | Process for obtaining nanodispersed titanium dioxide |
| MD4063C1 (en) * | 2010-02-18 | 2011-03-31 | Технический университет Молдовы | Method for producing nanotubes of titanium dioxide on a titanium substrate |
-
2008
- 2008-11-11 MD MDA20080278A patent/MD3977C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| MD3977B1 (en) | 2009-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG4A | Patent for invention issued | ||
| KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
| MM4A | Patent for invention definitely lapsed due to non-payment of fees |