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. 04, 2018
Filed:
Dec. 15, 2015
Applicant:
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Inventor:
Mohamed Sabri Abdelghani, Riyadh, SA;
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/08 (2006.01); C07C 7/10 (2006.01); C07C 11/18 (2006.01); C07C 13/15 (2006.01); C10G 7/08 (2006.01); C07C 7/00 (2006.01); C07C 13/61 (2006.01);
U.S. Cl.
CPC ...
C07C 7/005 (2013.01); C07C 7/08 (2013.01); C07C 7/10 (2013.01); C07C 11/18 (2013.01); C07C 13/15 (2013.01); C07C 13/61 (2013.01); C10G 7/08 (2013.01);
Abstract
A process for extracting isoprene from a pyrolysis gas mixture or a C5 fraction wherein isoprene is purified by plural extractive distillations in the presence of a polar solvent and cyclopentadiene is effectively removed and recycled as a feedstock without being converted into its dimer, dicyclopentadiene. The isoprene recovered from the process described is more than 99.5% pure.