ES2190300A1 - Production of stable tetragonal structure zirconium oxide powders comprises polycondensation of sol to form gel based on zirconyl chloride and ammonia - Google Patents
Production of stable tetragonal structure zirconium oxide powders comprises polycondensation of sol to form gel based on zirconyl chloride and ammoniaInfo
- Publication number
- ES2190300A1 ES2190300A1 ES200000243A ES200000243A ES2190300A1 ES 2190300 A1 ES2190300 A1 ES 2190300A1 ES 200000243 A ES200000243 A ES 200000243A ES 200000243 A ES200000243 A ES 200000243A ES 2190300 A1 ES2190300 A1 ES 2190300A1
- Authority
- ES
- Spain
- Prior art keywords
- ammonia
- production
- zirconium oxide
- sol
- oxide powders
- 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.)
- Granted
Links
Abstract
The production of stable-tetragonal-structure zirconium oxide powders comprises modification of the specific surface to give nanometric powder. A gel is formed by the polycondensation of a sol produced by hydrolysis based on a solution of zirconyl chloride and ammonia in an aqueous medium. Preferred Features: Hydrogen peroxide is applied, to increase the end-product's molar ratio, with an ageing time of 30 minutes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200000243A ES2190300B1 (en) | 2000-02-04 | 2000-02-04 | PROCEDURE FOR OBTAINING NANOMETRIC POWDER OF CIRCONIOUS OXIDE WITH MODIFICATION OF ITS SPECIFIC SURFACE AND STABLE TETRAGONAL STRUCTURE. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200000243A ES2190300B1 (en) | 2000-02-04 | 2000-02-04 | PROCEDURE FOR OBTAINING NANOMETRIC POWDER OF CIRCONIOUS OXIDE WITH MODIFICATION OF ITS SPECIFIC SURFACE AND STABLE TETRAGONAL STRUCTURE. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2190300A1 true ES2190300A1 (en) | 2003-07-16 |
ES2190300B1 ES2190300B1 (en) | 2004-11-16 |
Family
ID=27589257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES200000243A Expired - Fee Related ES2190300B1 (en) | 2000-02-04 | 2000-02-04 | PROCEDURE FOR OBTAINING NANOMETRIC POWDER OF CIRCONIOUS OXIDE WITH MODIFICATION OF ITS SPECIFIC SURFACE AND STABLE TETRAGONAL STRUCTURE. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2190300B1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58172233A (en) * | 1982-03-31 | 1983-10-11 | Etsuro Kato | Manufacture of spherical fine zirconia particle |
JPS61141620A (en) * | 1985-11-27 | 1986-06-28 | Etsuro Kato | Crystalline zirconia fine powder, and production thereof |
JPS61270217A (en) * | 1985-05-23 | 1986-11-29 | Denki Kagaku Kogyo Kk | Production of crystalline zirconium oxide fine powder |
JPS62128924A (en) * | 1985-11-29 | 1987-06-11 | Denki Kagaku Kogyo Kk | Production of zirconium oxide series fine powder |
JPS62212224A (en) * | 1986-03-14 | 1987-09-18 | Taiyo Yuden Co Ltd | Production of zirconia solid solution crystal fine powder |
US5238625A (en) * | 1991-04-12 | 1993-08-24 | Colloid Research Institute | Process for preparing zirconia sols and/or zirconia forms |
-
2000
- 2000-02-04 ES ES200000243A patent/ES2190300B1/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58172233A (en) * | 1982-03-31 | 1983-10-11 | Etsuro Kato | Manufacture of spherical fine zirconia particle |
JPS61270217A (en) * | 1985-05-23 | 1986-11-29 | Denki Kagaku Kogyo Kk | Production of crystalline zirconium oxide fine powder |
JPS61141620A (en) * | 1985-11-27 | 1986-06-28 | Etsuro Kato | Crystalline zirconia fine powder, and production thereof |
JPS62128924A (en) * | 1985-11-29 | 1987-06-11 | Denki Kagaku Kogyo Kk | Production of zirconium oxide series fine powder |
JPS62212224A (en) * | 1986-03-14 | 1987-09-18 | Taiyo Yuden Co Ltd | Production of zirconia solid solution crystal fine powder |
US5238625A (en) * | 1991-04-12 | 1993-08-24 | Colloid Research Institute | Process for preparing zirconia sols and/or zirconia forms |
Non-Patent Citations (6)
Title |
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HCAPLUS [en línea] [recuperado el 23.06.2003]. Recuperado de STN International, Columbus, Ohio (EE.UU.). Nö de acceso 1988:80681 & JP 62212224 A (TAIYO YUDEN, CO.) 18.09.1987 (resumen) * |
HCAPLUS [en línea] [recuperado el 23.06.2003]. Recuperado de STN International, Columbus, Ohio, (EE.UU.). Nö de acceso 1984:55923 & JP 58172233 A (KATO ETSURO) 11.10.1983 (resumen) * |
HCAPLUS [en línea] [recuperado el 23.06.2003]. Recuperado de STN International, Columbus, Ohio, (EE.UU.). Nö de acceso 1986:555547 & JP 61141620 A (KATO ETSURO) 28.06.1986 (resumen) * |
HCAPLUS [en línea] [recuperado el 23.06.2003]. Recuperado de STN International, Columbus, Ohio, (EE.UU.). Nö de acceso 1987:161534 & JP 61270217 A (DENKI KAGAKU KOGYO KK) 29.11.1986 (resumen) * |
HCAPLUS [en línea] [recuperado el 23.06.2003]. Recuperado de STN International, Columbus, Ohio, (EE.UU.). Nö de acceso 1987:619919 & JP 62128924 A (DENKI KAGAKU KOGYO KK) 11.06.1987 (resumen) * |
NAVIO, J.A. y col. Effects of H2O2 and SO42- species on the crystalline structure and surface properties of ZrO2 processed by alkaline precipitation. Chemistry of Materials, 1997, Vol. 9, Nö 5, páginas 1256-1261, ISSN 0897-4756. Todo el documento. * |
Also Published As
Publication number | Publication date |
---|---|
ES2190300B1 (en) | 2004-11-16 |
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