Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2008-07-15
2008-07-15
Price, Elvis O (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S913000
Reexamination Certificate
active
07399892
ABSTRACT:
A process for preparing low-water ethanol from at least two streams of relatively water-rich ethanol that have a different water content by dewatering at membranes. The low-water ethanol can be used to prepare ethyl tert-butyl ether (ETBE).
REFERENCES:
patent: 5607557 (1997-03-01), Streicher
patent: 6107526 (2000-08-01), Frey et al.
patent: 6657090 (2003-12-01), Rix et al.
patent: 7002053 (2006-02-01), Nierlich et al.
patent: 2006/0264681 (2006-11-01), Obenaus et al.
patent: 0 071 032 (1983-02-01), None
U.S. Appl. No. 11/624,823, filed Jan. 19, 2007, Rix et al.
U.S. Appl. No. 11/521,460, filed Sep. 15, 2006, Rix et al.
U.S. Appl. No. 11/614,275, Dec. 21, 2006, Praefke et al.
U.S. Appl. No. 11/610,801, filed Dec. 14, 2006, Fernandez et al.
A.H. Ballweg, et al. “Pervaporation Membranes-an Economical Method to Replace Conventional Dehydration and Rectification Columns in Ethanol Distilleries”, Proceedings Fifth International Alcohol Fuel Technology Symposium, XP-009086757, vol. 1, May 1982, pp. 97-106.
Büschken Wilfried
Höper Frank
Praefke Jochen
Rix Armin
Oblon, Spivak,McClelland, Maier & Neustadt, P.C.
Oxeno Olefinchemie GmbH
Price Elvis O
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