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:
Sep. 12, 2006
Filed:
Dec. 22, 2005
Applicant:
Te Chang, West Chester, PA (US);
Inventor:
Te Chang, West Chester, PA (US);
Assignee:
Lyondell Chemical Technology, L.P., Greenville, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 301/06 (2006.01); C07D 301/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
In accordance with the invention, propylene oxide is formed by reaction of propylene and hydrogen peroxide or by reaction of propylene, oxygen and hydrogen in methanol solvent, methanol and methyl formate are separated from propylene oxide by extractive distillation wherein the aqueous bottoms from methanol recovery distillation is used as extractive distillation solvent after first having been neutralized.