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:
Jul. 12, 1983
Filed:
Sep. 21, 1981
Applicant:
Inventors:
Lymperios N Yannopoulos, Churchill, PA (US);
Joseph F Pierre, West Deer, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
2524 / ; 252472 ;
Abstract
Disclosed is a method of making an .alpha.-hematite catalyst comprising condensing a ferric halide gas such as ferric chloride onto an inert metal oxide support such as alumina in the presence of moisture. The ferric chloride gas could be formed by reacting in iron source such as hematite with hydrogen chloride gas. The catalyst formed is less subject to erosion and is useful in the reduction of sulfur trioxide to sulfur dioxide.