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:
Jul. 28, 2020
Filed:
Nov. 08, 2016
Applicant:
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Inventors:
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/20 (2006.01); C07C 11/167 (2006.01); C07C 7/00 (2006.01); C07C 7/04 (2006.01);
U.S. Cl.
CPC ...
C07C 11/167 (2013.01); C07C 7/005 (2013.01); C07C 7/04 (2013.01); C07C 7/20 (2013.01);
Abstract
The presently disclosed subject matter provides a method for inhibiting the formation of popcorn polymer in the vapor phase of a butadiene extraction/purification system. In a non-limiting embodiment, a method for inhibiting the formation of popcorn polymer includes injecting nitric oxide into the upper portion, i.e., headspace of a butadiene distillation column.