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, 1988
Filed:
Mar. 14, 1985
Ricardo Viramontes-Brown, Garza Garcia, MX;
Jorge D Berrun-Castanon, San Nicolas de los Garza, MX;
Hylsa, S.A., Neuvo Leon, MX;
Abstract
Improved process and apparatus for the reduction of iron oxides employing a solid reducing agent. Particulate iron oxides are mixed with particles of the reducing agent and are subjected to high temperatures within a vessel made of refractory material which is externally heated in a furnace. The problem and drawbacks that have been found in the past, such as the fracture and high costs of the refractory vessels, are solved by means of the present invention which comprises laying a sheet made of tinplate or of other suitable material, between the vessel and solids to prevent them from sticking to the vessel because of the high temperature, thus providing an economic and advantageous process. In one of its embodiments, this process is particularly suitable for the production of high purity iron, that is with a low content of gangue and carbon. This high purity iron, once converted to powder with adequate particle size, has a number of diverse applications in industry.