Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1998-09-28
1999-12-14
Straub, Gary P.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
423608, 423611, 423612, C01G 2502, C01G 23047
Patent
active
060013265
ABSTRACT:
A method for production of mono-dispersed and crystalline titanium dioxide ultra fine powders comprises preparing an aqueous titanyl chloride solution, diluting the aqueous titanyl chloride solution to a concentration of between about 0.2 to 1.2 mole and heating the diluted aqueous titanyl chloride solution and maintaining the solution in a temperature range of between 15 to 155.degree. C. to precipitate titanium dioxide. The aqueous titanyl chloride solution is prepared by adding ice pieces of distilled water or icing distilled water to undiluted titanium tetrachloride.
REFERENCES:
patent: 2832731 (1958-04-01), Cunningham
patent: 3846527 (1974-11-01), Winter et al.
patent: 3923968 (1975-12-01), Basque et al.
patent: 4002574 (1977-01-01), Wade
patent: 4012338 (1977-03-01), Urwin
patent: 4842832 (1989-06-01), Inoue et al.
patent: 4923682 (1990-05-01), Roberts et al.
patent: 4944936 (1990-07-01), Lawhorne
patent: 5030439 (1991-07-01), Brownbridge
patent: 5068056 (1991-11-01), Robb
patent: 5075206 (1991-12-01), Noda et al.
patent: 5173397 (1992-12-01), Noda et al.
patent: 5443811 (1995-08-01), Karvinen
patent: 5821186 (1998-10-01), Collins
Kim et al. Preparation of mono-dispersed ultrafine TiO2 crystalline powders by homogeneous spontaneous precipitation from aqueous TiOCl2 solution. Yoop Hakhoechi, 35 (11), 1212-1221 (Korean) . Korean ceramic Society, 1998.
Nam et al. Preparation of ultrafine crystalline TiO2 powders from aqueous TiCl4 solution by precipitation. Jpn. J. Appl. Phs., Part 1, 37 (8), 4603-4608 (English). Japanese Journal of Applied Physics, 1998.
Kim et al. Preparation of crystalline TiO2 ultrafine powders from aqueous TiCl4 solution by precipitation method. Yoop Hakhoechi, 35 (4), 325-332 (Korean). Korean Ceramic Society, 1998.
Jeong Yong Hwan
Kim Kyeong Ho
Kim Sun-Jae
Kuk Il Hiun
Park Soon Dong
Korea Atomic Energy Research Institute
Nguyen Cam N.
Straub Gary P.
LandOfFree
Method for production of mono-dispersed and crystalline TiO.sub. does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for production of mono-dispersed and crystalline TiO.sub., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for production of mono-dispersed and crystalline TiO.sub. will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-860309