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:
Jan. 30, 1990
Filed:
Mar. 25, 1988
Jorge-Octavio Becerra-Novoa, Apodaca, MX;
Ronald-Victor-Manuel Lopez-Gomez, San Nicolas de los Garza, MX;
Carlos Dominguez-Ahedo, San Pedro Garza Garcia, MX;
Leobardo Chapa-Martinez, San Nicolas de los Garza, MX;
Hylsa, S.A., Monterrey, MX;
Abstract
A method is disclosed for the gaseous reduction of iron ore to sponge iron at a given degree of carburization and yet at a temperature suitable for hot briquetting or for direct feed to a melter or to a refining furnace. The desired percentage of carburization and the preferred elevated temperature are achieved by using a hot blend of recycled reducing gas and essentially uncracked natural gas or methane to carburize and to decrease the temperature of the sponge iron in the modifying zone of the reactor.