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:
Feb. 08, 1983
Filed:
Dec. 21, 1981
Applicant:
Inventors:
Gilbert R Germaine, Grand Couronne, FR;
Jean P Darnanville, Grand Couronne, FR;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
252470 ; 252467 ; 252474 ; 252476 ; 585444 ; 585658 ;
Abstract
The preparation of a compound of formula R.sup.1 --C(R.sup.2).dbd.CH.sub.2 (R.sup.1 and R.sup.2 are a phenyl, alkyl or alkenyl group or a hydrogen atom) by contacting a mixture of steam and a compound of formula R.sup.1 --C(R.sup.2)(H)--CH.sub.3 at elevated temperature under non-oxidative dehydrogenation conditions with a catalyst having a spinel structure allows lower ratios steam to compound of formula R.sup.1 --C(R.sup.2)(H)--CH.sub.3, a higher selectivity to the compound of formula R.sup.1 --C(R.sup.2).dbd.CH.sub.2 and a lower temperature when lithium is present in the spinel structure.