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:
Apr. 03, 2018
Filed:
May. 28, 2014
Applicant:
Shell Oil Company, Houston, TX (US);
Inventors:
Kai Jürgen Fischer, Amsterdam, NL;
Wouter Koot, Amsterdam, NL;
Sipke Hidde Wadman, Amsterdam, NL;
Jean Paul Andre Marie Joseph Gishlain Lange, Amsterdam, NL;
Assignee:
SHELL OIL COMPANY, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 29/86 (2006.01); C07D 307/08 (2006.01); C07D 307/33 (2006.01);
U.S. Cl.
CPC ...
C07C 29/86 (2013.01); C07D 307/08 (2013.01); C07D 307/33 (2013.01);
Abstract
The present invention provides a process for the recovery of 1,4-butanediol and at least one co-product selected from γ-butyrolactone, n-butanol and tetrahydrofuran from an aqueous stream, said process comprising the steps of providing the aqueous stream, providing a first solvent stream, combining said aqueous stream with said first solvent stream and recovering at least a portion of the 1,4-butanediol and at least a portion of at least one of the co-products by liquid-liquid extraction.