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:
Aug. 21, 2012
Filed:
Mar. 31, 2008
Kenneth J. Buturla, Baton Rouge, LA (US);
James T. Ritchie, Manassas, VA (US);
Ronald D. Garton, Wezembeek-Oppem, BE;
Eddy T. A. Van Driessche, Eeklo, BE;
Kenneth J. Buturla, Baton Rouge, LA (US);
James T. Ritchie, Manassas, VA (US);
Ronald D. Garton, Wezembeek-Oppem, BE;
Eddy T. A. Van Driessche, Eeklo, BE;
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Oxidative recovery methods that use oxygen or air for recovery of homogeneous metal catalysts, such as cobalt catalysts, used in for example hydroformylation processes, can be hazardous. Explosive or flammable gas mixtures may be generated inside the process equipment, which can deflagrate upon any ignition source such as a static electricity discharge. The use of a flammable diluent has been found to be a very effective way of optimizing the recovery method, by bringing the resulting gas mixtures above their upper flammability limit. The offgas produced is then also easier to dispose of as a fuel, as compared to when a non-flammable diluent is used.