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:
Jun. 17, 2025
Filed:
Mar. 01, 2022
Basf SE, Ludwigshafen am Rhein, DE;
Hans-Guenter Wagner, Ludwigshafen am Rhein, DE;
Suman Thotla, Ludwigshafen am Rhein, DE;
Gerrit Waters, Ludwigshafen am Rhein, DE;
Michael Huebner, Freeport, TX (US);
Markus Neudert, Ludwigshafen am Rhein, DE;
Randolph Hugo, Ludwigshafen am Rhein, DE;
Thomas Roussiere, Ludwigshafen am Rhein, DE;
BASF SE, Ludwigshafen Am Rhein, DE;
Abstract
The invention relates to a process for starting up a plant for removing isobutene from an isobutene-containing C4-hydrocarbon mixture, the plant comprising an etherification unit containing moist acidic ion exchange resin, a first distillation unit, an ether cleavage unit, and a second distillation unit. The invention further relates to a process for shutting down the plant from a stationary operation mode.