Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Reexamination Certificate
2006-12-14
2010-06-15
Griffin, Walter D (Department: 1797)
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By addition of extraneous agent, e.g., solvent, etc.
C585S809000, C585S864000, C208S142000, C208S313000, C208S317000, C203S014000, C203S023000, C203S058000, C203S060000, C203S071000, C203S078000
Reexamination Certificate
active
07737318
ABSTRACT:
The invention relates to a process for preparing 1-butenic fractions having less than 2000 ppm of isobutene in relation to 1-butene from technical mixtures of C4hydrocarbons I which contain at least 1-butene and 2000 ppmw to 8% by mass of isobutene based on the 1-butene, with or without n-butane, isobutane and/or 2-butenes.
REFERENCES:
patent: 4282389 (1981-08-01), Droste et al.
patent: 4448643 (1984-05-01), Lindner et al.
patent: 4797133 (1989-01-01), Pujado
patent: 5100533 (1992-03-01), Le et al.
patent: 5321163 (1994-06-01), Hickey et al.
patent: 5569788 (1996-10-01), Forte et al.
patent: 6486369 (2002-11-01), Voight 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: 25 21 964 (1975-11-01), None
patent: 28 53 769 (1980-06-01), None
patent: 1 199 296 (2002-04-01), None
patent: WO 2004/065338 (2004-08-01), 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, filed Dec. 21, 2006, Praefke, et al.
Bueschken Wilfried
Praefke Jochen
Rix Armin
Roettger Dirk
Santiago-Fernandez Silvia
Evonik Oxeno GmbH
Griffin Walter D
Nguyen Huy-Tram
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
LandOfFree
Process for fine purification of 1-butenic streams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for fine purification of 1-butenic streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for fine purification of 1-butenic streams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4250226