Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2010-07-27
2011-10-25
Witherspoon, Sikarl (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S465000
Reexamination Certificate
active
08044246
ABSTRACT:
The present invention relates to a process for the selective preparation of acetaldehyde, characterized in that acrolein and one or more ammonium salts dissolved in water are reacted continuously under high pressures and at temperatures of 300-400° C.
REFERENCES:
Antal Jr. et al., “Pyrolytic Sources of Hydrocarbons from Biomass”, Journal of Analytical and Applied Pyrolysis, vol. 8, pp. 291-303: 1985.
Antal Jr. et al., “Catalyzed and Uncatalyzed Conversion of Cellulose Biopolymer Model Compounds to Chemical Feedstocks in Supercritical Solvents”, Energy from Biomass and Wastes, vol. 10, pp. 865-877; 1987.
Buhler et al., “Ionic Reactions and Pyrolysis of Glycerol as Competing Reaction Pathways in Near and Supercritical Water”, Journal of Supercritical Fluids, vol. 22, pp. 37-53; 2002.
Eckert et al., “Acetaldehyde”, Ullmann's Encyclopedia of Industrial Chemistry, 7. Aufl., Wiley Interscience, Online Release, 2009.
Ott et al., “Catalytic Dehydration of Glycerol in Sub and Supercritical Water: A New Chemical Process for Acrolein Production”, Green Chemistry, vol. 8, pp. 214-220; 2006.
Ott, Stoffliche Nutzung von Biomasse mit Hilfe von nah- und uberkritischem Wasser-homogenkatalysierte Dehydratisierung von Polyolen zu Aldehyden-[Material use of biomass with the aid of near-critical and supercritical water-homogeneously catalysed dehydration of polyols to give aldehydes], Thesis, TU Darmstadt, 2005.
Ramayya et al., Acid-Catalyzed Dehydration of Alcohols in Supercritical Water, Fuel, vol. 66, No. 10, pp. 1364-1371; 1987.
Watanabe et al., Acrolein Synthesis from Glycerol in Hot-Compressed Water, Bioresource Technology, vol. 98, pp. 1285-1290; 2007.
Aras Gökhan
Hanselmann Paul
Heyl Andreas
Ott Lothar
Vogel Herbert
Hoffmann & Baron , LLP
Lonza Ltd.
Witherspoon Sikarl
LandOfFree
Process for the selective preparation of acetaldehyde from... 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 the selective preparation of acetaldehyde from..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the selective preparation of acetaldehyde from... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4288285