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. 11, 2003
Filed:
Oct. 21, 2002
Johann Zirngast, Marchtrenk, AT;
Other;
Abstract
In a process for producing a metal melt by reducing metal-oxide-containing material in a fluidized-bed reactor by the fluidized-bed method and by subsequently melting down the reduced material in a melt-down gasifier, in the melt-down gasifier there is generated from carbon-containing material a reducing gas which is used for reducing the metal-oxide containing material by the fluidized-bed method. Both the reducing and the melting-down are effected under atmospheric excess pressure. For the purposes of transferring the reduced material from the fluidized-bed reactor into the melt-down gasifier in a simple manner, a lower pressure is set in an intermediate vessel situated above the melt-down gasifier than in fluidized-bed reactor, and the reduced material is allowed to flow, under relaxation, upwards from the fluidized-bed reactor into the intermediate vessel and conducted from the intermediate vessel via a sluice system into the melt-down gasifier while being pressurized.