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:
Mar. 15, 1977
Filed:
Jul. 07, 1975
Howard Lee Mitchell, III, Baton Rouge, LA (US);
Exxon Research and Engineering Company, Linden, NJ (US);
Abstract
Alpha alumina, as a new composition of matter, particularly suitable as a support for catalyst compositions (especially reforming catalysts), having surface areas in excess of 75 m.sup.2 /g (B.E.T), ranging preferably from 100 m.sup.2 /g to 600 m.sup.2 lg, and higher, and more preferably from 150 m.sup.2 lg to 400 m.sup.2 /g. A novel process is also described wherein these novel alpha alumina compositions are formed from hydrated beta alumina, especially .beta.-Al.sub.2 O.sub.3.H.sub.2 O, at critical low-temperature, low water-vapor pressure conditions, preferably also at low system pressure or under vacuum. The alpha alumina is particularly useful as a support for a Group VIII noble metal reforming catalyst.