C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 303/04 (2006.01) B01D 3/40 (2006.01) C07D 301/32 (2006.01)
Patent
CA 2134319
STAGED PURIFICATION OF CONTAMINATED PROPYLENE OXIDE (Docket No. 81,173-F) ABSTRACT OF THE DISCLOSURE Contaminants are removed from impure propylene oxide by fractionating in a first column to remove overhead essentially all of the pentenes and pentanes and most of the oxygen- containing impurities to provide a partially purified first propylene oxide bottoms fraction, extractively distilling the first bottoms fraction in a second extractive column using a C2 to C6 alkylene glycol extractive distillation agent to form a second overhead fraction comprising propylene oxide, hex- enes, hexanes, water, residual quantities of pentenes and pentanes and oxygen-containing impurities, extractively distilling the second overhead fraction in a third column using a C6 to C10 alkane hydrocarbon extractive distillation agent to form a third bottoms fraction comprising the extrac- tive distillation agent, propylene oxide, hexenes, hexanes, residual quantities of pentenes and pentanes and water, and extractively distilling said third bottoms fraction in a fourth column using a C6 to C10 alkane hydrocarbon extractive distillation agent to form a fourth overhead fraction consist- ing essentially of propylene oxide.
Culbreth William Kemp III
Pottratz David George
Sheu Ya-Hwa Edward
Huntsman Specialty Chemicals Corporation
Smart & Biggar
LandOfFree
Staged purification of contaminated propylene oxide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Staged purification of contaminated propylene oxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Staged purification of contaminated propylene oxide will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2068830