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:
Apr. 01, 1986
Filed:
Aug. 08, 1984
Applicant:
Inventor:
Eduard P Kieffer, Amsterdam, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585415 ; 585407 ; 502 61 ; 502 71 ;
Abstract
A process is disclosed for converting C.sub.2 -C.sub.4 paraffins into aromatic gasoline over a crystalline gallium silicate having a SiO.sub.2 /Ga.sub.2 O.sub.3 molar ratio between 25 and 250, which silicate has been subjected once or several times to a two-stage treatment comprising reduction at a temperature of 400.degree.-650.degree. C. and oxidation at a temperature of 350.degree.-700.degree. C. Optionally the gallium silicate is subjected to precalcining at a temperature of 600.degree.-1000.degree. C., the number of times of the two-stage treatment being determined by the fact whether or not said gallium silicates have been subjected to such precalcination.