Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Reexamination Certificate
2011-08-16
2011-08-16
Silverman, Stanley (Department: 1736)
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
Reexamination Certificate
active
07998448
ABSTRACT:
A production method of amorphous silica comprises a step of preparing organic waste containing silicon oxide as a starting material, a step of immersing the organic waste in a carboxylic acid aqueous solution having a hydroxyl group, a step of washing the organic waste in water, and a step of heating the organic waste in the air atmosphere.
REFERENCES:
patent: 6375735 (2002-04-01), Stephens et al.
patent: 6406678 (2002-06-01), Shipley
patent: 2003/0012720 (2003-01-01), Victor et al.
patent: 2004/0175321 (2004-09-01), De Souza et al.
patent: 2006/0222582 (2006-10-01), Shipley
patent: 5-194007 (1993-08-01), None
patent: 7-57684 (1995-06-01), None
patent: 7-196312 (1995-08-01), None
patent: 8-48515 (1996-02-01), None
patent: 8-94056 (1996-04-01), None
patent: 11-323752 (1999-11-01), None
patent: 2003-71404 (2003-03-01), None
patent: 2003-171114 (2003-06-01), None
patent: 2003-522703 (2003-07-01), None
patent: 2003-529518 (2003-10-01), None
patent: 2004-527445 (2004-09-01), None
patent: 2004-529054 (2004-09-01), None
patent: 2006-187674 (2006-07-01), None
patent: 2007/026680 (2007-08-01), None
Chandrasekhar et al. “Review Processing, properties, and applications of reactive silica from rice husk—an overview”, Journal of Materials Science 38 (2003) 3159-3168.
Chandrasekhar et al. “Effect of calcination temperature and heating rate on the optical properties and reactivity of rice husk ash”, Journal of Materials Science (2006) 41:7926-7933.
de Souza et al. “Silica Derived from Burned Rice Hulls”, Materials Research, vol. 5, No. 4, 467-474, 2002.
S. Chandraskhar et al., “Effect of organic acid treatment on the properties of rice husk silica” (2005)Journal of Materials Science, vol. 40, pp. 6535-6544.
Kondoh Katsuyoshi
Michiura Yoshisada
Umeda Junko
Clark & Brody
Kondoh Katsuyoshi
Kurimoto Ltd.
Silverman Stanley
Zimmer Anthony J
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