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. 15, 1983
Filed:
Jun. 14, 1982
Applicant:
Inventor:
William V Bauer, New York, NY (US);
Assignee:
The Lummus Company, Bloomfield, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
75 29 ; 75 24 ; 75 36 ;
Abstract
In the direct reduction of iron ore wherein a solid mixture of unused carbonaceous reductant and spent flux is roasted to convert calcium sulfide to sulfate, the solids recovered from the roasting are carbonated to further reduce the sulfide content, and convert calcium oxide to the carbonate to provide a stabilized solid waste for disposal.