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. 09, 1976
Filed:
Nov. 15, 1974
Applicant:
Inventors:
Georg Grigoleit, Duisburg-Meiderich, DT;
Gerd Collin, Duisburg-Meiderich, DT;
Rudolf Oberkobusch, Duisburg-Meiderich, DT;
Assignee:
Rutgerswerke Aktiengesellschaft, Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603191 ; 252457 ;
Abstract
A process for the catalytic conversion of o-ethylaniline to indole in a gaseous phase and in the presence of hydrogen or steam and an SiO.sub.2 -containing catalyst modified by chromium dioxide and copper, wherein said conversion is conducted at about 400.degree. - 700.degree. C.; said catalyst comprising at least about 15% by weight copper and at least about 8% by weight of a chromate of a metal of Group IIA of the Periodic Table. A catalyst for use in the invention is provided.