Specialized metallurgical processes – compositions for use therei – Processes – Producing or purifying free metal powder or producing or...
Reexamination Certificate
2006-08-08
2006-08-08
Mai, Ngoclan T. (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or purifying free metal powder or producing or...
C423S604000, C423S618000, C423S594180, C977S726000
Reexamination Certificate
active
07087100
ABSTRACT:
The present invention is a process for producing nanosized metal compounds. The preferred product is nanosized copper, nanosized copper (I) oxide, and nanosized copper (II) oxide. The process includes heating a copper metal precursor in a hydrocarbon preferably selected from alkylated benzenes, polyaromatic hydrocarbons, paraffins and/or naphthenic hydrocarbons. The heating is desirably at a temperature and time effective to convert, for example, the copper metal precursor to nanosized copper (II) oxide, nanosized copper (I) oxide and/or nanosized copper metal. Separation of the hydrocarbon is then performed. Recovering the solid product and recycle/reuse of the recovered hydrocarbon in subsequent preparations of nanosized metal and metal oxides may be performed. The nanosized metal oxides of the invention may additionally be converted to nanosized metal salts by reaction with the appropriate acids while dispersed in the hydrocarbons.
REFERENCES:
patent: 1800828 (1931-04-01), Furness et al.
patent: 1867357 (1932-07-01), Furness et al.
patent: 2525242 (1950-10-01), Rowe
patent: 2666688 (1954-01-01), Furness et al.
patent: RE24324 (1957-05-01), Furness etal.
patent: 2924505 (1960-02-01), Page et al.
patent: 3194749 (1965-07-01), Furness et al.
patent: 3428731 (1969-02-01), Furness et al.
patent: 4193769 (1980-03-01), Cheng et al.
patent: 4490337 (1984-12-01), Richardson
patent: 4539041 (1985-09-01), Figlarz et al.
patent: 4808398 (1989-02-01), Heistand, II
patent: 4808406 (1989-02-01), Brinkman
patent: 5023071 (1991-06-01), Sherif
patent: 5332646 (1994-07-01), Wright et al.
patent: 5652192 (1997-07-01), Matson et al.
patent: 5759230 (1998-06-01), Chow et al.
patent: 5770172 (1998-06-01), Linehan et al.
patent: 5951739 (1999-09-01), Klapdor et al.
patent: 5984997 (1999-11-01), Bickmore et al.
patent: 6033624 (2000-03-01), Gonsalves et al.
patent: 6132491 (2000-10-01), Wai et al.
patent: 6328947 (2001-12-01), Monden et al.
patent: 6395053 (2002-05-01), Fau et al.
patent: 6517642 (2003-02-01), Horie et al.
patent: 6803027 (2004-10-01), Virkar et al.
Dianzeng, Jia, Jianqun, Yu and Xi, Xia, Synthesis of CuO Nanometer Powder By One Step Solid State Reaction at Room Temperature, Chinese Science Bulletin, (1998), pp. 571-574, vol. 43- No. 7, CHINA.
Dhas, N. Arul, Raj, Paul C., and Gedanken, A., Synthesis, Characterization, and Properties of Metallic Copper Nanoparticles, Chem. Mater., (1998), pp. 1446-1452, vol. 10, No. 5, American Chemical Society, U.S.A.
Pileni, M. P., Reverse Micelles as Microreactors, Journal of Physical Chemistry , (1993), pp. 6961-6973, vol. 97-No. 27, FRANCE? U.S.A.?.
Zou, Bing-Suo, Tang, Guo-Qing, Zhang, Gui-Lan, Chen, Wen-Ju, Li, Tie-Jin, Zhang, Yan, and Xiao, Liang-Zhi, Preparation and Optical Properties of Cu2O Nanoparticles, Chinese Science Bulletin, (1994), pp. 14-18, vol. 39-No. 1, CHINA.
Lisiecki, I., Billoudet, F., and M. P. Pileni, Control of the Shape and the Size of Copper Metallic Particles, Journal of Physical Chemistry, (1996), pp. 4160-4166, vol. 100-No. 10, U.S.A.
Qi, Limin, Ma, Jiming, and Shen, Julin, Synthesis of Copper Nanoparticles in Nonionic Water-in-Oil Microemulsions, Journal of Colloid and Interface Science, (1997), pp. 498-500, vol. 186-No. 2, Academic Press, U.S.A.
Lyons, A.M., Nakahara, S., Marcus, M.A., Pearce, E.M. and Waszczak, J.V., Preparation of Copper-Poly(2-vinylpyridine) Nanocomposites, Journal of Physical Chemistry, (1991), pp. 1098-1105, vol. 95-No. 3, American Chemical Society, U.S.A.
Curtis, Andrew C., Duff, Daniel G., Edwards, Peter P., Jefferson, David A., Johnson, Brian F. G., Kirkland, Angus I., and Wallace, Andrew S., A Morphology-Selective Copper Organosol, Angew. Chem. Int. Ed. Engl. (1998), pp. 1530-1533, vol. 27-No. 11, VCH Verlagsgesellschagt mbH, GERMANY.
Hirai, Hidefumi, Wakabayashi, Hidehiko, and Komiyama, Makoto, Preparation of Polymer-Protected Collodial Dispersions of Copper, Bull. Chem. Soc. Jpn., (1986), pp. 367-372, vol. 59, The Chemical Society of Japan, JAPAN.
McFadyen, Peter and Matijevic, Egon, Copper Hydrous Oxide Sols of Uniform Particle Shape and Size, Journal of Colloid and Interface Science, (1973), pp. 95-106, vol. 44-No. 1, Academic Press, U.S.A.
Fievet, Fernand, Fievet-Vincent, Francoise, Lagier, Jean-Pierre, Dumont, Bernard, and Figlarz, Michel, Controlled Nucleation and Growth of Micrometre-size Copper Particles Prepared by the Polyol Process, J. Mater. Chem.,(1993), pp. 627-632, vol. 3, FRANCE.
Kirk-Othmer Encyclopedia of Chemical Technology, Composite Materials To Detergency, Fourth Edition, pp. 505-520, vol. 7, John Wiley & Sons, U.S.A.
Brunauer, Stephen, Emmett, P. H., and Teller, Edward, Adsorption of Gases in Multimolecular Layers, (1938), pp. 309-319, vol. 60, U.S.A.
Baghurst, David R. and Mingos, D. Michael P., Microwave-Assisted Inorganic Reactions, Microwave-Enhanced Chemistry, Kingston, H. M. and Haswell, S. J. (Editors), American Chemical Society, Washington D. C., (1997), pp. 523-550, U.S.A.
Matijevic, E., Hsu, W.P., Yu, R., Preparation and Characterization of Uniform Particles of Pure and Coated Metallic Copper, Powder Technology, 63, (1990), pp. 265-275, U.S.A.
Rao, K.J., Vaidhyanathan, M.G., and Ramakrishnan, P.A., Synthesis of Inorganic Solids Using Microwaves, Chem. Mater. (1999), pp. 882-895, vol. 11, U.S.A.
Palchik, O., Zhu, J., and Gedanken, A., Microwave Assisted Preparation of Binary Oxide Nanoparticles, J. Mater. Chem. (2000), pp. 1251-1254, vol. 10, U.S.A.
Cromer Sabrina R.
Eng Regina Nelson
Lewis Kenrick M.
Mereigh Abellard T.
O'Young Chi-Lin
General Electric Company
Mai Ngoclan T.
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