Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2006-11-30
2009-11-24
Witherspoon, Sikarl A (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S899000
Reexamination Certificate
active
07622618
ABSTRACT:
A novel olefin hydration method is provided for efficiently producing alcohols by hydration of olefins containing 2 to 5 carbon atoms in the presence of a catalyst. Thus, alcohols are produced by hydrating olefins containing 2 to 5 carbon atoms at reaction temperature of 100 to 250° C. in the presence of a solid acid catalyst consisting of carbonaceous materials containing sulfonic acid groups obtained from an organic matter by carbonization and sulfonation. In carrying out this method, the organic matter is preferably an aromatic hydrocarbon or a saccharide, the olefin is preferably propylene or a butenes, and the hydration reaction temperature is not lower than 120° C., more preferably not lower than 150° C.
REFERENCES:
patent: 2006/0276668 (2006-12-01), Domen et al.
patent: 2004-238311 (2004-08-01), None
patent: WO 2005/029508 (2005-03-01), None
Shokubai (Catalysts & Catalysis), vol. 18, No. 6, pp. 180-184, 1976.
Sekiyu Gakkaishi (Journal of the Japan Petroleum Institute), vol. 34, No. 3, pp. 201-209, 1991.
Atushi Takagaki, Junko Nomura, Michikazu Hara, Shigenobu Hayashi and Kazunari Domen: “Carbon-based strong solid acids: synthesis conditions and catalysis”, 85th Annual Meeting (Spring) of the Chemical Society of Japan (2005), 2B5-43.
ANGEW. Chem. Int. Ed., 43, 2955-2958 (2004).
Nature, 438, 10, p. 178, Nov. 2005.
Hara Michikazu
Yanagawa Shinichiro
Nippon Oil Corporation
Tokyo Institute of Technology
Weingarten Schurgin, Gagnebin & Lebovici LLP
Witherspoon Sikarl A
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