Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ivb metal
Reexamination Certificate
2006-11-14
2006-11-14
Vanoy, Timothy C. (Department: 1754)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ivb metal
C423S081000, C423S084000, C423S085000, C423S608000
Reexamination Certificate
active
07135156
ABSTRACT:
Methods of producing zirconium oxide compositions and using same are provided. The zirconium oxide compositions in crystalline form can be prepared by a synthetic process wherein the hydrolysis of zirconyl chloride and particle formation can be achieved simultaneously. Alternatively, the particle formation can occur first and then followed by hydrolysis with a base solution. The processes utilize a zirconyl salt solution that includes a zirconyl salt in isopropanol and water.
REFERENCES:
patent: 3850835 (1974-11-01), Marantz et al.
patent: 4071444 (1978-01-01), Ash et al.
patent: 4719091 (1988-01-01), Wusirika
patent: 4784794 (1988-11-01), Kato
patent: 4929381 (1990-05-01), Clark
patent: 4933154 (1990-06-01), Kwon
patent: 4971729 (1990-11-01), White
patent: 5149510 (1992-09-01), Recasens et al.
patent: 5188991 (1993-02-01), Kriechbaum et al.
patent: 5976401 (1999-11-01), Suzuki et al.
patent: 6034029 (2000-03-01), Wulff-Doring et al.
patent: 2005/0194304 (2005-09-01), Paolis
U.S. Appl. No. 09/990,673, filed Nov. 13, 2001, Karoor et al.
Clearfield, A., 1990, The mechanism of hydrolytic polymerization of zirconyl solutions,J. Mater. Res., 5(1), 161-162.
Srinivasan, R., De Angelis, R., David, B. H., 1986, Factors influencing the stability of the tetragonal form of zirconia,J. Mater. Res., 1(4), 583-588.
Srinivasan, R., Harris, M. B., Simpson, S.F., De Angelis, R., David, B. H., 1988, Zirconium oxide crystal phase: The role of the pH and time to attain the final pH for precipitation of the hydrous oxide,J. Mater. Res., 3(4), 787-789.
Davis, B. H., 1984, Effect of pH on crystal phase of ZrO2precipitated from solution and calcined at 600° C., J.Am. Ceram. Soc., 67, C-168.
Mercera, P. D. L., Van Ommen, J. G., Doesburg, E. B. M., Burggraaf, A. J., Ross, J. R. H., 1990, Zirconia as a support for catalysts. Evolution of the texture and structure on calcination in air,Appl. Catal., 57, 127-148.
Moon, Y. T., Kim, D. K., Kim, C. H., 1995, Preparation of monodisperse ZrO2by the microwave heating of zyrconyl chloride solutions,J. Am. Ceram. Soc., 84(4), 1103-1106.
Hu, M. Z. C., Hunt, R. D., Payzant, E. A., Hubbard, C. R., 1999, Nanocrystallization and phase transformation in monodispersed ultrafine zirconia particles from various homogeneous precipitation methods,J. Am. Ceram. Soc., 82(9), 2313-2320.
Hu, M. Z. C., Payzant, E. A., Byers, C. H., 2000, Sol-Gel and ultrafine particle formation via dielectric tuning of inorganic salt-alcohol-water solutions,J. Colloid Interface Sci., 222, 20-36.
Park. H. K., Kim, D. K., Kim, C. H., 1977, Effect of solvent on titania particle formation and morphology in thermal hydrolysis of TiCl4.J. Am. Ceram. Soc., 80, 743-749.
Mercera, P. D. L., Van Ommen, J. G., Doesburg, E. B. M., Burggraaf, A. J., Ross, J. R. H., 1992, Influence of ethanol washing of the hydrous precursor on the textural and the structural properties of zirconia,J. Mater. Sci., 27, 4890-4898.
Jones, S. L., Norman, C. J., 1988, Dehydration of hydrous zirconia with methanol.J. Am. Ceram. Soc., 71(4), C-190-C191.
Hai Ton That
Jiang Cong
Karoor Sujatha
Nordhaus Mark
Sanders Paul
Baxter Healthcare S.A.
Baxter International Inc.
Bell Boyd & Lloyd LLC
Reagen Joseph P.
Vanoy Timothy C.
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