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. 15, 1980
Filed:
Dec. 05, 1975
Applicant:
Inventors:
Edward J Nemeth, Mt. Lebanon Township, Allegheny County, PA (US);
Joseph E McGreal, Penn Hills Township, Allegheny County, PA (US);
John L Howell, North Huntingdon Township, Westmoreland County, PA (US);
Assignee:
United States Steel Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C10K / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
423230 ; 2524 / ; 252416 ; 252419 ; 252420 ; 423522 ; 423539 ; 4235 / ; 423638 ;
Abstract
Dolomite which has been used to remove sulfur and/or sulfur-containing compounds from gases by chemical reactions therewith is regenerated by passing through the spent dolomite an oxidizing gas selected from oxygen, CO.sub.2 and H.sub.2 O at temperatures between about 1500.degree. F. and the temperature at which the dolomite becomes unreactive.