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. 17, 1976
Filed:
Jun. 25, 1973
Applicant:
Inventors:
Max Michel, Yerres, FR;
Georges Dupuy, Fontenay-aux-Roses, FR;
Assignee:
Rhone-Poulenc Industries, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
423224 ; 423230 ; 423244 ; 423576 ; 4235 / ; 423576 ;
Abstract
This invention is addressed to a method of catalytic treatment of residual gases containing various compounds of sulphur, particularly hydrolyzable compounds of sulphur by the Claus reaction. These residual gases, at the expense of which all or part of the necessary amount of sulphurous anhydride is formed, are treated at temperatures above 200.degree.C in the presence of catalysts comprising active alumina and one or more oxides, sulphides or compounds capable of being sulphurized, of molybdenum, cobalt, nickel, iron and uranium.