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. 12, 1980
Filed:
May. 11, 1978
Dean P Montgomery, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
A magnesium oxide-containing catalyst which has been used to isomerize butene-2 to butene-1 is regenerated at a localized bed temperature to not exceed about 1000.degree. F., preferably not to exceed about 900.degree. F., by steps involving purging the catalyst with an inert gas, then admixing with said gas oxygen or oxygen-containing gas to produce a final mixture to contain not more than about 0.5 volume percent O.sub.2, and passing said mixture through the catalyst, controlling flow of the mixture to maintain the catalyst at a localized temperature not exceeding substantially about 1000.degree. F., preferably not exceeding about 900.degree. F., increasing the O.sub.2 content of the mixture gradually, but not sufficiently to substantially exceed said temperature of about 1000.degree. F., preferably 900.degree. F., continuing to pass said mixture through the catalyst until substantially no more carbon oxides are detected in the gas exiting the catalyst, arresting flow of oxygen to the catalyst, continuing to pass said inert gas through the catalyst until substantially all O.sub.2 has been purged therefrom, then purging said catalyst to prepare it for isomerization use.