The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2020
Filed:
Jul. 19, 2017
Basf SE, Ludwigshafen am Rhein, DE;
Joaquim Henrique Teles, Ludwigshafen, DE;
Marvin Kramp, Ludwigshafen, DE;
Christian Mueller, Ludwigshafen, DE;
Nicolai Tonio Woerz, Ludwigshafen, DE;
Bernd Metzen, Ludwigshafen, DE;
Tobias Keller, Ludwigshafen, DE;
Dominic Riedel, Ludwigshafen, DE;
Markus Weber, Ludwigshafen, DE;
Daniel Urbanczyk, Ludwigshafen, DE;
Andrei-Nicolae Parvulescu, Ludwigshafen, DE;
Ulrike Wegerle, Worms, DE;
Ulrich Mueller, Ludwigshafen, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
Disclosed herein is a process for purifying propylene oxide, including the steps of: (i) providing a stream S0 containing propylene oxide, acetonitrile, water, and an organic compound containing a carbonyl group —C(═O)—; and (ii) separating propylene oxide from the stream S0 by subjecting the stream S0 to distillation conditions in a distillation column to obtain a gaseous top stream S1c which is enriched in propylene oxide compared to the stream S0, a liquid bottoms stream S1a which is enriched in acetonitrile and water compared to the stream S0, and a side stream S1b containing propylene oxide which is enriched in the carbonyl compound compared to the stream S0.