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. 23, 1990
Filed:
Jan. 22, 1988
Peter Fischer, Bad Vilbel, DE;
Metallgesellschaft Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
Smelting is effected in a reactor containing juxtaposed oxidizing and reducing zones. The slag baths in the two zones communicate with each other. The slag baths of the two zones communicate with each other, the materials are charged into the slag bath in the oxidizing zone and oxygen-containing gases are blown into the slag bath in the oxidizing zone, a slag which is rich in non-ferrous metal oxides is passed from the oxidizing zone into the reducing zone, reducing agent and oxygen-containing gases are blown into the slag in the reducing zone at such respective rates that the non-ferrous metal oxides are substantially completely reduced and a phase that is rich in non-ferrous metal is formed, a slag which is poor in non-ferrous metal is tapped from the reducing zone, gases are separately sucked from the oxidizing and reducing zones, and the subatmospheric pressures in the suction lines connected to the oxidizing and reducing zones are so controlled that a zero differential pressure is obtained adjacent to the boundary between the oxidizing and reducing zones.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile