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:
May. 31, 1977
Filed:
Apr. 12, 1976
Applicant:
Inventors:
James M Henderson, New Brunswick, NJ (US);
John B Pfeiffer, South Plainfield, NJ (US);
Assignee:
Asarco Incorporated, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423570 ; 423564 ;
Abstract
Decrepitation of the catalyst occurring in the initial upstream portion of the catalyst bed of the reaction zone in a process for catalytically reducing sulfur dioxide to obtain elemental sulfur is avoided or minimized by employing as the catalyst in at least the initial upstream portion of the bed a supported sulfate of an iron group metal.