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:
Nov. 04, 1980
Filed:
Jan. 05, 1979
Applicant:
Inventors:
Leon F Koniz, Poughkeepsie, NY (US);
John H Estes, Wappingers Falls, NY (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
2323 / ;
Abstract
Alkylaromatic charge hydrocarbons such as toluene are steam dealkylated in the presence of catalyst which typically contains oxides of nickel, chromium, and potassium on an activated high-purity alumina. It is a feature of this invention that the high-purity alumina is activated by calcining followed by addition thereto of alkaline earth metal such as calcium or magnesium. A test is disclosed according to which it may be determined which high-purity aluminas are suitable for use.